14 best graphic sound equalizers

Product description

TRS or XLR balanced inputs and outputs differential / Choice of stereo or the sum of the synthesis of left and right channel subwoofer X10 range are two-channel selector switch / Two channels have 40Hz high pass filter (low cut) All outputs with phase reverse switch / The output of all bands can be independently adjusted average 24dB/Unkwitz-Riley filters (the professional standard) - Stereo / Mono status indication LEO lights, indicating that the mode selection unit RS or differential balanced XLR inputs and outputs. Choice of stereo or the sum of left and right channels while the synthesis of ultra-low sound. X10 range are two-channel selector switch. Two channels have 40Hz high pass filter (low cut) all the outputs with phase reverse switch. All the bands on the average out put can be independently adjusted dB/ Linkwitz-Riley filters (the professional standard). Stereo/mono status indication LED lights, indicating that the choice of unite of work pattern.

• TRS or XLR balanced inputs and outputs differential / Choice of stereo or the sum of the synthesis of left and right channel subwoofer
• X10 range are two-channel selector switch /
• All outputs with phase reverse switch /
• 24dB/Unkwitz-Riley filters (the professional standard)

User questions & answers

Question:	Can I route this straight from my computer, and equalize any noise output coming from there
Answer:	The spikes with the rods slip into holders on fence sections with nothing other than gravity to hold them in place. So,yes, the spikes can easily be removed from the fence sections for storage.
Question:	How long this equalizer is warrantee from manufacture
Answer:	I have had mine for two years and no rust. They have a thick, black enamel on them. Still look like when I opened the box.
Question:	Could I use this for vocal EQ
Answer:	I couldn't find a gate so I just attached two panels (where I wanted the gate to be) with bungee cords so it was easy to move one of them open.
Question:	Can I use this for a 2 channel stereo
Answer:	Please accept our apologies for any inconvenience. If you contact us via Amazon customer message centre with your address we will organise a replacement to be sent.

Product description

The EQS755 is 1/2-DIN chassis Graphic EQ w/ built-in low-pass filter. Equipped with a full-featured 7-band Graphic equalizer, you will enjoy superior control over the audio spectrum with frequency adjustments in the 50 Hz to 16 kHz range over seven bands. This gives you the power to get the most of your sound system, and the ability to contour the sound output to your musical taste.

• 1/2-DIN chassis graphic equalizer with built-in low-pass filter6-channel/ 8-Volt RCA outputs (front, rear and subwoofer)7-ban graphic equalizer (50Hz, 125Hz, 315Hz, 750Hz, 2.2Khz, 6Khz, 16Khz)
• 3.5mm Front aux input2-channel RCA aux input with variable gain adjustments and high level speaker inputs
• Blue illuminationindependent master volume and subwoofer level Control with fader control select able 12Db low-pass Filer (60Hz or 90Hz)
• Ground loop isolation circuit Dimensions: 7"(w)x4-1/4"(l)x1"(h)

User questions & answers

Question:	What size are the screws
Answer:	Do not know. But it is well made and probably not need of repair for a long while to come.
Question:	Can you hook this up to subwoofer and door speakers? Got 3000watt ssl evo amp and 2500watt audiotek for doors. Please help
Answer:	Yes ,I guess so
Question:	does this amp remove distorcion and make speakers louder
Answer:	Yes it's a 2 channel equalizer
Question:	Does this double as a line converter for factory sterols without RCA outputs
Answer:	I ordered these twice and got 5 pieces with each order

Product description

The Rockville REQ231 is an extremely high quality professional rack mountable equalizer. This is a 2 channel equalizer with 31 bands per channel. The main focus on this was sound quality and making it rugged and tough. We wanted to build a professional product that will instantly make a good speaker sound better, and after months of testing we know we did it!



This graphic EQ also has a low cut crossover filter switch, with status LED, that helps remove rumble from mics. Another great feature is the bypass switch, with LED indicator, which is very convenient when doing sound checks.



We added a sub output with frequency controls which is something that we see a need for. Many brands for some odd reason do not give you a sub output and sub controls. We made sure to include this important function.



If you want the best sounding EQ on the market at a great price, then we highly recommend you try out our REQ231. If you are unsatisfied with the quality we will give you a 90 day money back guarantee including return shipping!



Features:



Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output

Dual channel (31 bands per channel)

Variable stage low and high cut filters

1/3 octave filter sets (ISO centers)

20 Hz to 20 kHz effective equalization range

Constant Q filters

Selectable 6dB or 12dB cut or boost range

Output level LEDs (-10 to +17 dB)

Bypass switch with status LED

Balanced XLR input/output

Subwoofer out

Channels: 2 (stereo)

Connectors: XLR balanced inputs and outputs

Bands: 31 per channel

• Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output. Dual channel (31 bands per channel). Variable stage low and high cut filters.
• 1/3 octave filter sets (ISO centers). 20 Hz to 20 kHz effective equalization range. Constant Q filters. Selectable 6dB or 12dB cut or boost range. Output level LEDs (-10 to +17 dB).
• Bypass switch with status LED. Balanced XLR input/output. Subwoofer out. Channels: 2 (stereo). Connectors: XLR balanced inputs and outputs. Bands: 31 per channel.
• Frequency Centers: 20 Hz, 25 Hz, 31.5 Hz, 40 Hz, 50 Hz, 63 Hz, 80 Hz, 100 Hz, 125 Hz, 160 Hz, 200 Hz, 250 Hz, 315 Hz, 400 Hz, 500 Hz, 630 Hz, 800 Hz, 1 kHz, 1.25 kHz, 1.5 kHz, 2 kHz, 2.5 kHz
• Control Range: Selectable +/-12dB 0r +/-6dB. Input Impedance: 50k ohms. Output Impedance: 600 ohms. Maximum Output Level: +21dBLevel Control: +/- 10 dB. Signal to Noise: >93 dB. Distortion: 0.005%.

User questions & answers

Question:	Can i connect speakers to the equilizer
Answer:	Mixer to eq then eq to powered speakers or mixer to eq then eq to amp then amp to unpowered speakers
Question:	can this EQ to subwoofer
Answer:	Its good i hve 1 single channel but it qorks great..
Question:	Would this work to boost the bass up a good bit in my home 2 channel stereo? I like a lot of bass without a subwoofer
Answer:	As any equalizer it is just going to help arrange the different frequencies. If you want more bass you should get a subwoofer. What an eq does is re-arrange what power is already there. You could make it sound more bassy by turning down the higher frequencies but that's working backwards. If you want more bass I would suggest using the money to buy a more powerful amplifier. (Or again getting a subwoofer)
Question:	Is the output for each channel stereo or mono
Answer:	Mono per side. Use both channel for stereo. For few bucks extra I suggest you to get Behringer EQ instead. Amazon always have great price for those EQ.

Product features

Rockville REQ231 Dual 31 Band 1/3 Octave Graphic Equalizer With Sub-Output

The Rockville REQ231 is an extremely high quality professional rack mountable equalizer. This is a 2 channel equalizer with 31 bands per channel. The main focus on this was sound quality and making it rugged and tough. We wanted to build a professional product that will instantly make a good speaker sound better, and after months of testing we know we did it!

This graphic EQ also has a low cut crossover filter switch, with status LED, that helps remove rumble from mics. Another great feature is the bypass switch, with LED indicator, which is very convenient when doing sound checks.

We added a sub output with frequency controls which is something that we see a need for. Many brands for some odd reason do not give you a sub output and sub controls. We made sure to include this important function.

If you want the best sounding EQ on the market at a great price, then we highly recommend you try out our REQ231. If you are unsatisfied with the quality we will give you a 90 day money back guarantee including return shipping!

Features:

• Package Includes: Rockville REQ20 19" Rack Mount Pro Dual 10 Band Graphic Equalizer EQ w/VU Meters, Rockville RCDR10B 10' Dual RCA to Dual RCA Pro Audio Cable 100% Copper
• Features Of REQ20: Dual 10 Band Graphic Equalizer (20 Bands Total), Frequency Response: 20Hz - 20KHz, Dual VU Meters Level Monitor, Blue LED on each Equalizer Slide Control, Stereo RCA Line Input, Stereo RCA Line Output
• Vacuum Fluorescent Display, Bass/Midrange/High EQ Controls, Separate Left/Right Channel Volume gain control, Signal to Noise Ratio: >88dB, Input Power: AC ~ 110V 60H/220V 50Hz, 110/220V Switchable, Front Panel Power Switch, Removable Rack Mount Brackets, Dimensions: 17"(19" w/brackets) x 9" x 2.2", Weight: 5 lbs
• Features of RCDR10B: Rockville RCDR10B Black Dual Mono Right Angle RCA to Straight RCA Patch Cable, Dual RCA to Dual RCA, Nickel-Plated for Rugged Durability and Efficient Signal Transfer, 100% Copper Conductors for Enhanced Signal Clarity, OFC Spiral Shields for Effective EMI and RFI Rejection and Flexibility, Length: 10 Ft, Color: Black

User questions & answers

Question:	Will this work with denon avr 2112ci receiver
Answer:	Yes you can. I only use 2 channel receivers. Not into cinema and avr receivers. I use an external audio source selector. Available on Amazon. Mine handles 3 sources. But selectors with more source inputs are available. I run my sources to the inputs on the selector. Then run the single output to the auxiliary input or in the case of newer receivers, input 1,2 or 3. For my application it works very well. Technically you can connect this eq to your Denon or any other receiver without the in out loop.
Question:	what would cause this to make an awfull hissing sound ? right now its useless
Answer:	Trying to diagnose sound equipment is not always easy. A hum usually means a bad ground. A his could be a lose connection or a bad cable. First see if the noise is on both sides or just one. Single side noise try changing a cable from the left to the right to see if the hiss changes sides. If it does change does change out the cable. If the his stays then you have a speaker problem. If the his is on both sides check your ground. Hope this helps.
Question:	Can I connect this to a yaqin mc-13s
Answer:	You should beable to if u use aux cables for it
Question:	Can it be connected straight to a 200 watt am/fm home reciever
Answer:	Yes it will work very good with all types of recievers And 200 watts that's enuff to do alittle bit on thumppin I also have 200 watt receiver and with ROCKVILLE SOUNDS EVEN GREAT DEPENDED ON UR SPEAKER SIZE I HAVE 2 15 AND 2 SURRENDER NICE

Product features

Rockville REQ20 19" Pro Rack Mount Dual 10-Band Graphic Equalizer EQ+VU Meters

Package Includes:

• Rockville REQ20 19" Rack Mount Pro Dual 10 Band Graphic Equalizer EQ w/VU Meters
• Rockville RCDR10B 10' Dual RCA to Dual RCA Pro Audio Cable 100% Copper

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Features of REQ20:

• REQ20: Dual 10 Band Graphic Equalizer
• Dual 10 Band Graphic Equalizer (20 Bands Total)
• Frequency Response: 20Hz - 20KHz
• Dual VU Meters Level Monitor
• Blue LED on each Equalizer Slide Control
• Stereo RCA Line Input
• Stereo RCA Line Output
• Stereo RCA Line Output for Record
• Vacuum Fluorescent Display
• Bass/Midrange/High EQ Controls
• Separate Left/Right Channel Volume gain control
• Signal to Noise Ratio: >88dB
• Input Power: AC ~ 110V 60H/220V 50Hz
• 110/220V Switchable
• Front Panel Power Switch
• Removable Rack Mount Brackets
• Dimensions: 17"(19" w/brackets)  x 9" x 2.2"
• Weight: 5 lbs

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Features of RCDR10B:

• Rockville RCDR10B Black Dual Mono Right Angle RCA to Straight RCA Patch Cable
• Dual RCA to Dual RCA
• Nickel-Plated for Rugged Durability and Efficient Signal Transfer
• 100% Copper Conductors for Enhanced Signal Clarity
• OFC Spiral Shields for Effective EMI and RFI Rejection and Flexibility
• Length: 10 Ft
• Color: Black

Product description

The HQ231 Dual 31-band Graphic EQ is perfect for any live sound application where there is a high feedback potential including monitor mixes, side-fill cabinets or high powered front-of-house mixes situations. The HQ231 features ARTs proprietary FDC Feedback Detection Circuit, with constant Q circuitry capable of delivering a 3 center frequency accuracy. Professional features like LED level metering, selectable 6dB or 12dB slider range, active balanced and unbalanced input output connectors, RFI filters, independent variable Hi Pass low cut and Low Pass high cut filters, variable input level control, passive bypass switch, clip level indicator, ground lift switch, and selectable line voltage switch make it ideal for any professional application or touring system. FDC Feedback Detection Circuit - FDC Feedback Detection Circuitry designed and developed by ART Engineering instantly illuminates an LED on the corresponding EQ band fader with the greatest sustained signal. The LED indicators can immediately show which band corresponds to the feedback frequency, allowing the sound engineer to reduce gain in that band to quickly kill the feedback while having a minimal impact on the sound of the live program material. The FDC also acts as a simple spectrum viewer while the concert proceeds showing where the hot areas are. During system setup and sound check, the FDC may be used to help identify room and sound system resonances. By increasing the gain until feedback, it is easy to identify those frequencies that are likely to be problems. Reducing the gain in these bands helps tune the sound system, and, remove problem areas before the show begins. It also helps increase the gain margin before feedback.

• FDC Feedback Detection Circuit.
• Dual Channel 31-Band Graphic Equalizer.
• Output Level VU Metering on Each Channel.
• Constant-Q Filtering.
• Individual High and Low Pass Filters on Each Channel.

User questions & answers

Question:	is this a octive eq? can the lights be placed on non flickering
Answer:	The fencing I received is black.
Question:	what kind of inputs and outputs does it have
Answer:	yes, there are 5 pieces at 13" each which makes 65" total
Question:	is the face blue or black
Answer:	5 feet only
Question:	Do the sliders light up red? or no? whats the diff between this and the 355? version
Answer:	Just put the stakes down for one part and only one stake down for the other so that it would swing with the hinge used as a gate.

Product description

7 BANDGRAPHIC EQUALIZER BY GRAVITY! The Gravity 7 Band Graphic Equalizer GR-EQ9 is a one of the best graphic equalizers by Gravity. With the various features and specialties such as 10Hz to 50kHz frequency, 11-15v DC power supply, equalization range of +-12 dB make this item impactful. Subwoofer Equalizer: 60/90Hz, Signal To Noise: 90dB, Max Output Volt: 7V RMS PRE Graph Frequency 50Hz - 16kHz are more features. All of these features and power makes your user experience great. A graphic equalizer is the simpler type of audio equalizer, most often sporting multiple sliders or controls for boosting or cutting bands. Its Simple and intuitive operation and it has a broad range of effect. Ideal for general use. The GR-EQ9 gives you great value for your money and satisfaction with a perfect music and sound. We have been providing a huge amount of this items to customers. They love them and keep sending us more friends for use the Gravity 7 Band Graphic Equalizer GR-EQ9 as well. We are getting very good feedback and reviews from our valued customers.

• Power Supply: 11-15V DC | Max Output Volt: 7V RMS PRE Graph Frequency 50Hz - 16kHz
• Equalization Range: +-12dB | Subwoofer Equalizer: 60/90Hz | Input Impedance: 15k Ohms
• Signal To Noise: 90dB | T.H.D. AT 0.05% | Channel Division: 70dB
• Frequency: 10Hz-50kHz

User questions & answers

Question:	Does it come with an adapter
Answer:	It comes with the power plug if that is the question. This was the same as my Clarion EQ. Just a different name. The plug fits my Clarion as well
Question:	Does it bring the wiring plug
Answer:	Yes
Question:	How has it held up over the years
Answer:	Works well for the price
Question:	Does it come with wiring harness and mounting brackets
Answer:	Yes it comes with everything

Product description

The Model 355 Dual 31-Band 1/3 Octave Graphic Equalizer may be used in a variety of applications such as live sound, recording studios, instrument racks, DJ sound systems and fixed equipment installations. Designed to interface into any audio system, the Model 355 is a powerful tool for solving audio problems and creating interesting sound textures. The Model 355 possesses a long list of impressive features including: constant Q circuitry, 20mm center detent sliders (with a selectable boost/cut range of 6dB or 12dB), balanced XLR and 1/4? and unbalanced RCA input and output connections, adjustable high pass and low pass filters, variable input level controls, signal clip level indicators, ground lift switch, internal power supply and selectable line voltage switch. The rugged, all-steel constructed chassis occupies 2U rack spaces and is intended for installation into standard 19? equipment racks. The 355 Dual Channel 31 Band EQ has the features and performance you need for any of your audio applications requiring precise equalization. Dimensions: 3.5?H x 19? W x 8.5? D Weight: 9.0lbs. (4.1kg) Frequency Bands: 31, 1/3 octave, ISO spacing Filter Type: Constant Q - 3% center accuracy Slider Travel: 20mm w/ positive center detent Range: +/-6dB or +/-12dB selectable High Pass Filter: 10Hz to 250Hz, 12dB/oct Low Pass Filter: 3kHz to 40kHz, 12dB/oct Input Connections: Active balanced XLR and 1/4? TRS {XLR pin 2, 1/4? tip = Hot (+)} Unbalanced RCA ...

• Constant Q circuitry 20mm center detent sliders Selectable boost/cut range of 6dB or 12dB Balanced XLR and 1/4" Unbalanced RCA input and output connections Adjustable high-pass and low-pass filters Variable input level controls Signal clip level indicators Ground lift switch Internal power supply Selectable line voltage switch Rugged, all-steel chassis 2U rackspace required

User questions & answers

Question:	does it have 48v phantom for both XLR mic inputs
Answer:	No.
Question:	I have read this unit takes two racks spaces, albeit it states above it is 5.9 inches, so which is it? Thank you
Answer:	Just measured, the height is 3.5 inches.
Question:	Is this true?...i have been told that i cannot connect this to a onkyo 737 home theatre receiver because it does not have a tape loop
Answer:	Hi Steve. I looked up the Onkyo 737 so I could answer your question intelligently. I need to know how you want to use the EQ before I an give you a good answer. You could use the Zone 2 output to feed the EQ input and then connect the EQ output to another source input, say if you own a tape deck and you want to equalize the response, but I do not see the traditional "tape loop" that would enable you to equalize the front two channels irregardless of which source you pick. So the simple answer is no you can't use it effectively. Sorry.
Question:	whay are the in put / out put in each channel are crossing? like. rca has in put and out put on same channel
Answer:	RCA is unbalanced, meaning its susceptible to noise problems. XLR (and 1/4 trs - not 1/4 tr) are balanced, and more immune to noise problems picked up in interconnecting audio equipment. Balanced connections use shielded, twisted-pair cable and three-conductor connectors (like XLR or TRS connectors). This noise cancellation is called “Common Mode Rejection.” It's also good for long cable runs. And so XLR and TRS cables are used to transmit balanced audio from one balanced device to another. In an audio rack you might be tempted to use an inexpensive cable like RCA because the cable runs are short. That's your choice, but the professionals use XLR cables for the cleanest sound they can engineer.

Product description

Description of RPA60BT:

Huge Power

The RPA60BT is loaded with 1,000 Watts of power! The built in amplifier is louder than similar products on the market that are rated at 3000 watts. When manufacturing this item we upgraded the power of the amplifier. We tested these against similar items on the market and these significantly outperformed the others rated at 2000 and 3000 watts. We do not exaggerate power ratings the way other brands on the market do.

Expandable

This is more than an amplifier. The RPA60BT will be the control center for your home, karaoke, or professional audio system. You can hook up additional power amplifiers to the system and add more speakers. You will be able to control the gain of each amplifier individually through this receiver. You can also connect 2 microphones directly to the receiver, an audio source (mp3 player, ipod, etc), and 2 video sources, and a recorder. This model is upgraded with a USB input so you can connect an iPod, portable hard drive, thumb drive, or other storage based device.

Great For Karaoke

There is a built in mic mixer with echo control, which makes this perfect for karaoke performances.

Bluetooth

Connect your favorite device, and quickly start a karaoke party with your favorite songs!

Full Function Remote

The remote control that is included will allow you to access all functions of the receiver quickly and efficiently.

Built In Radio

Another major advantage this model has is that it has a built in radio. This makes it perfect for home use, and the radio is also great for intermissions during live performances.

Adjustable Equalizer Settings

The adjustable equalizer will allow you to fine tune your music so it sounds at its best.

Description of REQ20:

Rockville Audio REQ20 Dual 10 Band Home Theater Equalizer Graphic EQ w/VU Meters

• Package Includes: Rockville RPA60BT 19" 1000w 2-Ch USB Bluetooth DJ/Pro/Karaoke Amplifier Mixer, Rockville Audio REQ20 Dual 10 Band Home Theater Equalizer Graphic EQ w/VU Meters
• Features of RPA60BT: Rockville RPA60BT 19" 1000 Watt 2-Channel USB and Bluetooth Karaoke Receiver/Amplifier/Mixer, 19" rack mountable (removable rack brackets) digital hybrid amplifier/receiver, RMS Power @ 4 Ohms: 125w x 2, Peak Power @ 4 Ohms: 500w x 2, RMS Power @ 8 Ohms: 100w x 2, Peak Power @ 8 Ohms: 400w x 2, THD: > 0.1%, Input Sensitivity: 400mv/33 KOhm, Frequency Response: 20 Hz - 20 kHz, Signal to Noise Ratio: 80 dB, Tone Characteristic: 100Hz-10KHz ±12dB, 110v/220v Switchable
• Inputs: iPod/MP3 - 1/8” Mini Jack Style, 1/4” Headphone Jack, 1/4" Mic 1 and Mic 2 Inputs, USB Input, Rear Inputs: RCA Input for DVD or CD, Rear Outputs: Preamp output for an external additional amplifier or powered speaker, Sub preamp output to connect a powered subwoofer or an amplifier, Record output to connect a recording device, Bluetooth Capable, Rear Speaker Terminals: Banana plug / binding post outputs for 4 speakers (2 on Channel A and 2 on Channel B), Built-in Pre-Amplifier
• Features Of REQ20: REQ20: Dual 10 Band Graphic Equalizer, Dual 10 Band Graphic Equalizer (20 Bands Total), Frequency Response: 20Hz - 20KHz, Dual VU Meters Level Monitor, Blue LED on each Equalizer Slide Control, Stereo RCA Line Input, Stereo RCA Line Output, Stereo RCA Line Output for Record, Vacuum Fluorescent Display
• Bass/Midrange/High EQ Controls, Separate Left/Right Channel Volume gain control, Signal to Noise Ratio: >88dB, Input Power: AC ~ 110V 60H/220V 50Hz, 110/220V Switchable, Front Panel Power Switch, Removable Rack Mount Brackets, Dimensions: 17"(19" w/brackets) x 9" x 2.2", Weight: 5 lbs

Product features

Rockville RPA6000USB 19" 1000w Home Theater Receiver+10 Band Graphic Equalizer

Package Includes:

• Rockville RPA6000USB Home Theater Receiver
•  Rockville Audio REQ20 Dual 10 Band Home Theater Equalizer Graphic EQ w/VU Meters

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Features of RPA6000USB:

• RPA6000USB: Home Theater Receiver with AM/FM Digital Tuner
• 4 Ohms: 125w x 2 RMS and 500w x 2 Peak
• 8 Ohms: 100w x 2 RMS and 400w x 2 Peak
• Built-in Preamplifier
• Multicolor LED display
• Digital Quartz Synthesized AM / FM tuner w/50 presets & auto scan
• Preset EQ (rock, pop,>
• Remote control for quick access to all functions
• Vacuum Fluorescent Digital output display meters
• Separate gain controls for pre-amp & subwoofer
• Digital karaoke system
• 2 front microphone inputs w/volume, tone and echo controls
• Built-in mic mixer with echo control
• USB input for music files from USB thumb drive
• 3.5mm input for iPod / MP3 player
• Spectrum analyzer equalizer display
• Turbo cooling twin fan system
• 1/4" headphone jack
• Individual pre-amp output controls w/ control knobs

Inputs and Outputs:

Inputs On Front of Unit

• ipod/mp3 - 1/8” mini jack style
• 1/4” headphone jack
• 1/4" Mic 1 and Mic 2 Inputs
• USB Input

Rear Inputs

•  RCA Input for DVD or CD

Rear Outputs

• Preamp output for an external additional amplifier or powered speaker
• Sub preamp output to connect a powered subwoofer or an amplifier
• Record output to connect a recording device

Rear Speaker Terminals

• Banana plug / binding post outputs for 4 speakers (2 on Channel A and 2 on Channel B)

Details

• THD: less than 0.1%
• Input sensitivity: 400mv/33K ohm
• Frequency response: (20Hz-20KHz): ±2dB
• Signal to noise ratio: 80db
• Tone characteristic (100Hz-10KHz) ±12dB
• 110v/220v switchable
• Dimensions: 19"w x 11.75"d x 3.5"h
• Shipping weight: 15 lbs

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• TOP RATED CAR AUDIO EQUALIZER | The EQ7X Massive Audio Car Stereo Equalizer is a 7 band graphic equalizer that will correct peaks and dips in sound characteristics associated with most vehicles' interior. This Graphic Equalizer also features a switch to change the LED color from Red to Blue depending on the interior of the vehicle.
• MORE TUNING CONTROL | With Stellar features such as: Adjustable Master Volume Level, Adjustable Subwoofer Level, 2-Channel RCA Aux Input and Adjustable Gain, 7-Band, 1/2 DIN, 8V Line Driver, Auxiliary inputs, 6-Channel / 7V RCA Outputs, you can take full control on how you like your music to sound Clearer, Better, Perfect!
• SAY GOODBYE TO WHITE NOISE | Don't waste your time or money on cheap quality Car Audio Equalizers that produce a lot of background noise. With Selectable 12dB Low-Pass Crossover (60Hz or 90Hz), and Gold Plated Terminals, you're sure to get great crossovers and perfect sound quality.
• EASY TO INSTALL. LONG LASTING. | The Massive Audio EQ7X Car Audio Equalizer is easy to install and produces amazing results for years! The EQ7 is the perfect device to enhance your Car Audio's performance, and the Best Car Equalizer in its class! Dimensions: 7" (W) x 1" (H) x 4-1/8" (D)
• MASSIVE AUDIO QUALITY | Since 1999, Massive Audio has been an industry leader in high performance audio products. Massive Audio laid its roots in high quality audio reproduction through in-house engineering and a dedication to customers.

User questions & answers

Question:	How hard is it to hook up a equalizer to my Kenwood car stereo
Answer:	Depends - But I'd imagine that if you are capable of installing the HU then the EQ should be just as easy. Has the 3 typical: power. ground, remote and then the input and output(s) <-- or whatever way you plan on using the EQ. All else fails, go to YouTube and watch one of the many videos. I tried "how to install a car EQ" and it came back with "about 347,000 results" I bought this EQ and am extremely pleased with what I got for the price of this thing. Buy it. figure out to install it. It is worth it
Question:	Would this make a huge difference with 4 6.5 mids and 2 tweeters
Answer:	It definitely would. Thats exactly what I have
Question:	This can be used to take the 2 rca inputs from head unit and make them multiple rca outputs for a 5 channel amp
Answer:	Yes, I have 2 AMPs connected to it. I have a 4 channel 1000 watt Rocksford Fosgate AMP pushing the highs and mids to the 6x9s and door speakers. And I have a 8000 watt Power Accoustik AMP pushing the Bass. The 1st knob is independent bass that controls my Power Accoustik AMP. The 2nd Knob is the overall volume. So the answer is Yes. It controls my 4 channel AMP and my Mono AMP at the same time.
Question:	Does thing have separate inputs channels for front and rear speakers
Answer:	Having trouble with my 4 channel head unit (Alpine) - I have separate front and rear L/R RCA outputs coming from the head - I plugged the front RCA outputs into the "main" which works ok, but no place to plug in the rear output RCA cables....

Product features

Massive Audio EQ-7X Car Equalizer

The Massive EQ 7X is a half din 7 Band Graphic EQ that will correct peaks and dips in sound characteristics associated with most vehicles' interior that dampens and limits both speaker output and imaging. This EQ provides powerful features in a compact size.

Product description

Skar Audio engineered the SKA7EQ 7 band 1/2 DIN car audio graphic equalizer so that you can finally take full control over your car audio listening experience, dialing the sound into perfection. Featuring two sets of RCA inputs (main and a selectable auxiliary input), this EQ takes your input signal and allows you to modify and adjust the sound to your liking. The output signal is then delivered via the high voltage (up to 7V max) pre-amp RCA outputs for the Front, Rear, and Subwoofer channels (the subwoofer out-put channel features an independent volume control knob on the front of the unit as well). 7 fully adjustable -12 dB to +12 dB EQ bands (50 Hz, 125 Hz, 320 Hz, 750 Hz, 2. 2 kHz, 6 kHz, 16 kHz) with built-in fader control.

• 6 Channel 7-Band High Performance Car Audio 1/2 DIN Pre-Amp Electronic Equalizer
• Featuring 2 (Balanced & Selectable) RCA Inputs - Main and Auxiliary (Aux w/ Variable Gain Control) | THD: 0. 005%
• High Voltage (Max Output Voltage - 7V) Gold Plated Pre-Amp RCA Outputs - Front, Rear, and Subwoofer (with Variable Subwoofer Level Control on Front of EQ)
• 7 Fully Adjustable -12 dB to +12 dB EQ Bands (50 Hz, 125 Hz, 320 Hz, 750 Hz, 2. 2 kHz, 6 kHz, 16 kHz) with Built-in Fader Control
• Take Full Control Over Your Car Audio System with this EQ | Signal-to-Noise Ratio: 100 dB, Low Pass Frequency Switch: 60 Hz / 120 Hz
• Includes Installation Mounting Brackets and Hardware | 20 dB Headroom Eliminated Signal Overload
• Included components: Installation Brackets and Hardware

User questions & answers

Question:	How would you wire this to a head unit that has a front, rear and subwoofer channel? Would you only use the front and rear and toss the other set of r
Answer:	So with only one input from the head unit does the eq convert it to front and rear sound? What I mean do you loose the rear sound or does it just double and split the front channel?
Question:	Does this product light up
Answer:	Yes it lights up blue cleaned up my audio very well
Question:	Anyone els experiencing a popping noise when you take key out ignition if so any ideas on how i can stop it? I already tried grounding it to radio
Answer:	Had the same issue with ankther brand EQ. Problem went away when I switched the positive from the EQ and attached it to the yellow cable straight to battery not the red to ignition. That should fix it.
Question:	How would you do the power wire i see theres one in picture with a fuse but isint that to short
Answer:	Hello, No the Red wire with fuse holder is not to short. The longer side of the Red wire goes to the Scar SKA7EQ, On Back of the SKA7EQ is the power, ground, and Remote terminal. The Red wire will be extended with a 14awg wire to your power source. Source could be the car battery, or an Accessory fuse circuit of 10 amps 12volts DC current. Extending this red wire is Normal in the audio installation world. The coupling will be needed to successfully butt the two wires together and crimp both sides, if u like install the double red wire size with Heat Shrink Tubbing, then Couple the wires with the "Butt Connector" , slide the heat shrink over it and heat the heat shrink with a Heat Gun, or powerfully hair dryer, then run the Red wire to the Accessory, or Battery positive Red Terminal. The same thing for the ground wire, black wire has no fuse in line so Run from your battery Negative Terminal Black, to the Scar SKA7EQ next to the Red wire, and Tighten it down to the SKA7EQ. The Remote wire is "In the business of Audio Installation" Traditionally Blue, Or Purple, Strip 4mm, or 3/8" and Install it into the Scar SKA7EQ at the R terminal, R stands for "Remote" or "Trigger" this Blue, Or Purple wire goes to your amplifier, and at the amplifier you will see a Positive terminal, a Negative Terminal and the R, "Remote" terminal the Blue or Purple Remote wire tightens onto the amp in the R terminal spot. The wire should be all 14 AWG for this. Wiring your amps u should at least use 4awg for both Power and Ground, Directly to the car/boat/atv Battery. Use small spools of OFC Copper, Red Positive, Black Negative, and Blue/Purple Remote from amazon, You have to have Amplifiers in your system to use the SKA7EQ. Get an Amplifier install kit, plus the three spools of 20ft of 14 AWG Red, Black, Blue from amazon....Good Luck.

Product description

Professional Dual 15-Band Stereo Graphic Digital Equalizer 19" Rack Mount / Input Gain ***BRAND NEW -- NEVER USED*** Very high quality Professional Dual 15-Band Equalizer with Crystal Clear Sound quality MUSYSIC MU-EQ15B One Year Limited Manufacturer Warranty in USA The MUSYSIC MU-EQ15B is a professional Equalizer at your disposal is priceless and can make or break your overall sound! MUSYSIC’s MU-EQ15B Dual 15-Band Professional Equalizer was designed with exactly this in mind. This is a professional Equalizer system that can be used to adjust your overall sound to a professional level!

• Digital Stereo dual 15-band graphic equalizer /
• Two Audio Source Line Input / 1/4" & XLR line input sources / 1/4" & XLR line output source
• Low Cut, Range +/- 12, ByPass, Clip / Input Gain control / Low noise circuitry
• 19" Rack Mount

User questions & answers

Question:	Can this unit be used with a home stereo receiver using 1/4" to rca adapter cords
Answer:	It's not an amp. It's a equalizer unit to fine tune music. This unit goes between the head unit and amplifier. Most head units provide 2 volt signal to the amp, this eq will provide 7 volt signal to the amp.
Question:	are the cables included with this EQ? If not, how much do they cost
Answer:	If I understand your question correctly then yes, it does have a plug to receive hi-level input from your stereo
Question:	I received a “three prong vertical” power cord but it does not fit into the back of the unit
Answer:	Yes each of the 31 bands represents an octave spanning 20Hz to 20kHz. Never tried to turn off the LEDs. They are not real bright but when they flicker it helps to locate the frequency of the feedback.
Question:	I want to know i put sound to equalizer than go to mixer or go to mixer than go to to equalizer
Answer:	The HQ231 has XLR, 1/4 TS, and RCA inputs for each channel.

Product description

Ultra-Compact 9-Band Graphic Equalizer with FBQ

If we all lived in a perfect world, there would be no need for audio equalization. Sound systems would be perfect and would reproduce perfect signals in all their glorious perfection. Also, everyone in that perfect world would like the same amount of bass, midrange and high frequency, and there would be no such thing as feedback. But the world isn't perfect, is it? Even the best sound system can benefit from the use of a good EQ--like the FBQ800.

Even the best sound system can benefit from the use of a good EQ. Click to enlarge.

1/4-inch and RCA inputs and outputs.

Nine steps of graphic EQ.

How Does it Work?

Imagine the frequency range of the sound you hear as a highway, a very wide one with nine lanes. Each of these "lanes" represents a single octave of the sonic spectrum. The first four lanes, labeled 63 - 500 (Hz) contain the really low frequency sound content, mainly bass, bass vocals, and the kick and tom drums. The three lanes labeled 1 k, 2 k and 4 k (Hz), make up the fundamental zone of most musical instruments and the male and female vocals. 8 k and 16 k cover the frequency range of cymbals, snare drums and higher pitched percussion instruments. The FBQ800 allows you to control the flow of audio traffic in each of these nine lanes. When properly applied, EQ makes it possible to hear all of these frequency ranges equally, thus the term equalization.

Feedback Elimination

When a specific frequency, or range of frequencies, reaches too high a level, feedback occurs--that all-too-familiar squeal or howl you get when the mic is too close to the speaker. Basically, feedback happens when there is so much of a particular frequency that it is picked up by the mic and run through the system again. That's why feedback typically gets louder and louder the longer it's allowed to occur. Needless to say, this kind of feedback is very undesirable.

This is where the FBQ800's Feedback Detection System really works its magic. In this ingenious circuitry, LEDs on the individual faders light up when that frequency band is approaching the danger zone. All you need do is lower the illuminated slider until the LED blinks out--voilá, feedback problem solved! What once required a highly trained ear is now an activity that even a child can master.

Sonic Toolkit

That really is the best way to describe the FBQ800. With its nine frequency bands, you easily fine-tune your sound and instantly eliminate feedback. And each fader can be used to boost or cut the frequency range it controls by as much as 12 dB (and that's a lot!).

Special attention is paid to the low frequency zone. In addition to low frequency faders, the FBQ800 features a Low Cut filter for removing unwanted low frequencies such as fl oor rumble, room resonance, electrical hum, etc. This is especially handy if your system is being used for speech rather than music.

To Boost or to Cut, That is the Question

Raising and lowering specific frequency bands can improve the frequency response of any room's acoustics. For instance, if the room you're in is "bass-heavy," lowering the 63 and 125 Hz faders can help eliminate an overall "boomy" or "muddy" sound. Likewise, gently boosting the 8 and 16 k sliders can add sparkle to a somewhat "dark" mix. Are the vocals getting lost in the mix? Raising the level of the 1 k slider can help bring them out.

It's important to note that raising a single fader level is not always the best solution; it's often better to lower the bands surrounding the frequency you want to bring out, and then boost the overall volume level to achieve better headroom.

Built for Accuracy and Reliability

Speaking of headroom, FBQ800's 6-digit LED Input/Output meters and level control are provided for precise level maintenance. Longterm reliability is ensured, thanks to high-quality illuminated faders and switches, and our ultra low-noise audio operational amplifiers provide outstanding sonic performance. In addition, all Mini Series components may be stacked to create an ultracompact signal processing solution.

What's in the Box

Behringer FBQ800 Ultra-Compact 9-Band Graphic Equalizer, Power Supply, User's Manual

• Ultra-compact 9.5" graphic equalizer for studio and stage applications
• Revolutionary FBQ Feedback Detection system instantly reveals critical frequencies and can also be used as Audio Analyzer
• Additional Low-cut filter removes unwanted frequencies, e. g. floor rumble
• Accurate 6-segment LED input/output meters and Level control for precise level indication
• High-quality illuminated faders, potentiometers and illuminated switches for long-term reliability

User questions & answers

Question:	What type of cables are required to hook this up between an amplifier and yamaha receiver? Much appreciated
Answer:	Both
Question:	Can you adjust each channel (left/right) separately
Answer:	Nope, the only things lit are the little indicator lights for power +/- 12dbs and something else.
Question:	I see many mention that they use this for helping hearing loss by using this unit with headphones. My question is how do you use this with headphones
Answer:	They are very clean sounding eqs.
Question:	does it connect to amplifier
Answer:	First, this is not a player. This is a tone control with instead of just the normal bass, treble and high, divides it into 31 (from 20HZ to 20KHZ). Also, this model is mono (1 channel). You can get 2 of these or get the stereo model. You still need an amplifier and a player. You hook this up between a like a CD player and your amp.

Product description

7 BAND PASSIVE STEREO GRAPHIC EQUALIZER WITH FADER CONTROLSOUNDXTREME 7 BAND PASSIVE STEREO GRAPHIC EQUALIZER WITH FADER CONTROL ST-EQ-180

• Featuring: Adjust gain Control / Output level Display/ EQ Slide Control / Subwoofer Xover Points / Subwoofer Switch
• Specification:
• EQ Center Frequencies: 60, 150, 400, 1K, 2. 5K, 6K and 15Khz / Equalization Range: +/- 12dB
• Input Impedance: 100 Ohm / Input Sensitivity: 4 Volts for 500mV out
• Frequency Response: 20hz to 20kHz +/- dB / Crossover Rolloff: 12dB/Octave / Power Requirement: 11-16V DC

User questions & answers

Question:	Este ecualizador necesita un conectar a un amplificador
Answer:	Si este equalizador es pasivo y nesecita un amplificador de 4 canales
Question:	Can I get this to work at home
Answer:	no, it is a 12 volt system and your house is 120 volts
Question:	I bought this to connect to bluetooth 4 channel amp on harley should work good for that right
Answer:	If you're using a 4-channel amp you have two channels for the front and two channels for the rear there is one channel left for the subwoofer you can add one more amp if it's a 2 channel amp you will want to bridge it to one channel for the subwoofer
Question:	Can this EQ be connected direct to the speakers like the old ones, I'm looking for one that not need to connected to an amp
Answer:	Yes you can, but the quallity of this equalizer is to poor!

Product description

It's amazing. One little button. It has so much effect. The Type III Noise Reduction is an entirely new concept... virtually instantaneous encode/decode within the circuitry of the box. We started out to build the finest EQ's possible, boxes with the heritage and performance to rival our famous 30 Series EQ's. And to no one's surprise they came out awfully darn good. (Ask to see the Audio Precision plots compared to the competition.) But then, Roger (our chief engineer, a nice guy, as far as engineers go) got the crazy idea of putting this new noise reduction stuff in the box. We listened to it and were amazed. The EQ's sounded great without it but with it the performance was nothing short of incredible. Check it out yourself and see. But hey, Roger wasn't about to stop there. Peak Plus Limiter. Who knows more about limiting than the folks at dbx; nobody... that's who. So when the guys were developing this new series of EQ's they wanted something that would be unique to these EQ's. That's when Roger got another one of his bright ideas and said "I bet they'll work a lot better if there's a cool limiter built in." Next thing you know, all the guys are in the studio amazed at the new limiter Roger had designed specially for the 20 Series. Once again, hearing is believing... With a threshold range of 0 to +20dbu, the Peak Plus limiter is designed to tame your program material from the subtlest nuances to the rowdiest hits. Also, the four stage LED ladder gives you a great visual indication as to what the limiter is doing.

• Revolutionary instant encode/decode Type III Noise Reduction in-circuit at the push of a button
• Increases S/N ratio by up to 20dB
• Patent-pending Peak Plus Limiter threshold range from 0dBu to +24dBu (off) can transparently tame the wildest hits or the subtlest nuances of any signal
• Four segment LED bar graph for BOTH Gain Reduction AND Output Level Status LEDs offer visual feedback for all settings on the front panel
• Inputs: ¼” TRS, female XLR (pin 2 hot), and barrier terminal strip
• Outputs: ¼” TRS, male XLR (pin 2 hot), and barrier terminal strip
• Includes: 1x dbx 1231; 1x AC power cord; 1x Operator's Manual; 1x Registration Card; 4x rack mount screws and washers

User questions & answers

Question:	To connect my old amplifier pioneer a777 with rca, that it would be more convenient to use 1/4" trs or xlr
Answer:	I assume you are connecting this device in series with some other input device such as an external CD Player. Or in the AUX LOOP. Both being on the front end (preamp) of your Amplifier. Either way the type of I/O jacks you use (balanced/unbalanced) are only going to effect your overall S/N ratio. Which depending on just how many beers that are left in the cooler will be your Judge and Jury. Therefore, I personally would just use 1 (L) and 1 (R) Tip-Ring (unbalanced) 1/4 inch to RCA cables for input and the same for output. I would not use any adapters as that would only worsen your already weak S/N ratio because the system is truly UNBALANCED. That's the draw back of regular consumer devices which provide only RCA I/O 's in the first place. FYI. The 1215 along with it's big brother the 1231, Which is what I use. Are both really designed to be used in a TOTALLY BALANCED Analog/Digital Professional Sound Reinforcement System from source to transducers environment. But you sure will have a GREAT sounding EQ across YOUR system either way. I hope this was of some help for you. Cheer's, Doc
Question:	what are you selling. Your add says a DBX 1231 Your picture is a 2231 which is it
Answer:	Jeff, the Amazon catalog has the wrong image. Image feedback request has been sent to Amazon to fix this issue. This product is the DBX 1231 Dual 31 Band Graphic EQ. Thanks Jeff-Pro Audio Land
Question:	can each channel handle a stereo input
Answer:	Yes You can apply either channel of your sources L/R output to the 2131's Channel 1/2 input. It doesn't matter, as long as you keep your signal flow SEPARATED and in series. I never use RCA connectors. This device was primarily designed for Balanced 3 pin audio input &outputs. The use of RCA connectors only minimizes system hum & noise. This defeats the purpose of this devices noise reduction circurty. DBX realizes this. That is why they did not make RCA connections available on this device. 98% of consumer audio systems (home) use RCA connectors not Professionally balanced 3 pin audio connectors. That is the beauty of this device. Don't try to mix apples and oranges. If the connectors are not there they are not meant to be. Hope this helps.n Doc

Product features

dbx 1231

The dbx 12 Series were designed to meet the needs of the most demanding sound reinforcement environments, while offering the simplicity of straightforward controls. The 1231 provides standard features like dual-channels, 31 1/3 octave bands, ISO frequency centers, +/- 12 dB input gain range, and switchable 40Hz/18 dB per octave low-cut filters, but also includes other thoughtful features. These include 45 mm faders; selectable +/-6dB or +/-15dB boost/cut range for precise gain adjustments; XLR, barrier strip, and 1/4'' TRS connectors for installation ease; balanced inputs and outputs for quiet operation; and chassis/signal ground lift capabilities for quick hum isolation. The visionary design of the dbx 12 Series makes your job easier.