14 best bass blockers
Bass blockers, also known as bass frequency blockers or high-pass filters, are electronic components used in car audio systems to prevent low-frequency bass signals from reaching certain speakers. These devices are typically installed in the wiring of speakers to limit the frequency range they reproduce. Here's what you need to know about bass blockers:
Purpose: Bass blockers are primarily used to protect smaller speakers, such as tweeters or mid-range drivers, from receiving low-frequency bass signals that they may not be able to handle. These smaller speakers are designed to reproduce higher frequencies more efficiently.
Frequency Cutoff: Bass blockers are designed to allow higher-frequency signals to pass through while blocking or attenuating lower frequencies. The specific frequency at which the blocker starts to attenuate the signal can vary, but it's usually set around 200-300 Hz or higher.
Components: Bass blockers are typically passive components, which means they do not require a power source to operate.They are composed of capacitors and sometimes resistors. The capacitor acts as a high-pass filter, allowing high-frequency signals to pass while blocking low-frequency ones.
Installation: Installing bass blockers is a relatively simple process. They are typically connected in-line with the speaker's wiring. The capacitor side is connected to the positive terminal of the speaker, while the other side (with no polarity) connects to the positive terminal of the amplifier or head unit.
Benefits: Bass blockers help prevent distortion and damage to smaller speakers when they try to reproduce bass frequencies that are beyond their capabilities. This can improve the overall sound quality of a car audio system.
Speaker Compatibility: It's essential to choose the right bass blocker with a frequency cutoff that matches the speaker's capabilities. If the cutoff frequency is too high, it may allow some unwanted bass to pass through, potentially causing distortion.
Considerations: While bass blockers are useful for protecting smaller speakers, they are not a substitute for a well-balanced audio system with appropriate subwoofers and crossovers. For the best audio experience, it's essential to have a system that's properly tuned and balanced.
In summary, bass blockers are components used in car audio systems to protect smaller speakers from low-frequency bass signals. They work by allowing higher frequencies to pass through while blocking lower frequencies. Properly chosen and installed bass blockers can help improve the overall sound quality of a car audio system.
Below you can find our editor's choice of the best bass blockers on the market
Skar Audio SK150HZBB-PR Elite Frequency Filters - Eliminates Frequencies 0-150 Hz at 4 Ohms - Pair
Product description
Skar Audio designed our lineup of elite frequency filters to help maximize the performance and sound quality of your speakers. These easy-to-install frequency filters help reduce audible distortion and prevent damage to your speakers by blocking excessive bass from reaching them.
- Elite Frequency Filters - Bass Blockers - Sold as a Pair
- Eliminates Frequencies: 0-150 Hz at 4Ω - 0-75 Hz at 8Ω
- Ideal for Use with: 8" - 12" Speakers
- Wire Type: 16AWG Purple - Spliced Ends for Easy Install
- Prevents to Low of Frequencies from Damaging Your Speakers
PAC BB-2PR Pair of Bass Blocker Designed for 6" Speakers
PAC
Product description
Pair of bass blockers designed for 6" speakers. Blocks 0-600hz at 4 ohms / 0-300hz at 8 ohms. Simple installation.
- Removes selected frequencies from the audio source
- Protects the speakers from receiving damaging frequencies
- Designed for use with 6" and 6-1/2" speakers
- Pair of bass blockers
- Removes selected frequencies from the audio source
- Frequencies blocked: 4 ohms: 0-600 Hz / 8 ohms: 0-300 Hz
- Protects the speakers from receiving damaging frequencies
- Designed for use with 6" and 6-1/2" speakers
User questions & answers
| Question: | Does anyone know if there is a rated power these can handle, im thinking of using these on an amplifier that has about 250 watts @ 4 ohms, bass wise |
| Answer: | These bass blockers are designed for a speaker application . Manufacturer specs these at 50 watts RMS. |
| Question: | Could I use theses with jl c2-350x speakers on a jk with a jl amp and kenwood headunit |
| Answer: | what you would need would be the bass blockers designed for the 3.5" speakers. |
| Question: | Can these handle 100watts ? I have a separate sub , so I want only light mids and highs for my door speakers |
| Answer: | I would say yes. The wires coming off of them are a pretty thick gauge. |
| Question: | Does this crossover work only with 6" and 6 1/2" speakers (as said)? what does the speaker size have to do with blocking certain frequencies |
| Answer: | No it will 'work' with any speaker size. The size of the speaker has more to do with the amount of air it can move and, generally, the amount power it can handle (all things being equal). Typically, a larger speaker has more cone area than a small speaker and can move more air--thus can respond more faithfully to lower frequencies. For example, it's typical to see 6.5" respond within a -3 db limit down to 60 hertz. A 3.5" speaker typically responds down to ~ 120 hertz within those same limits. Also, typically, the power handling capabilities of a speaker has more to do with the voice coil's ability to disappate heat (power). The voice coil is that little round thing in the middle of your speaker glued to the cone in the center, extending into the magnet structure, and covered by a dust cap. Dome drivers (typically tweeters) are driven by a voice coil around the perimeter of the dome. The bigger the voice coil, typically, the better it can disappate heat (power). Larger drivers can have larger voice coils (but they don't HAVE to).The reason you would buy a capacitor is you are limiting the lowest frequencies that can pass to your speaker through 'capacitance'. By limiting the lower frequencies, you can effectively reduce the amount of energy (power) the speaker's voice coil can receive, and protect it from overheating (blowing). The different capacitance values expressed in microfarads (uF) change the frequency at which the speaker received signal (power). But a capacitor can only roll-off that power at 6db per octave. So if I bought a capacitor for a 600hz crossover point, it would be 6 decibels down at 300 hertz, 12 decibels down at 150 hertz, etc.The sellers labeling of the capacitor as for 6.5", 5.5", 4" or 3.5" speakers is based on typicalness for size, power handling, and frequency response for the respective speaker....not any precise science. Also be sure to note the impedance (expressed in ohms) of the speaker and the capacitor's crossover point at that impedance meet your needs. Typically, car speakers between 3.5 and 6.75" are 4 ohms, but can be as low as 2 ohms, and as high as 8 ohms. Hope this is helpful! |
PAC BB-6PR Pair of Bass Blocker for Tweeters, 6 Inch x 1 Inch x 6 Inch
PAC
Product description
Pair of bass blockers for tweeters. Removes 0-5.6khz At 4 ohms / 0-2.8khz At 8 ohms. Simple installation.
- Easily handles power of up to 50 watts
- Black color coded leads for easy identification
- Encased in heat shrink tubing with wire leads for easy installation
- Pair of bass blockers
- Removes selected frequencies from the audio source
- Frequencies blocked: 4 ohms: 0-5600 Hz / 8 ohms: 0-2800 Hz
- Designed to enhance the performance and power handling of tweeters and midrange speakers by removing frequencies beyond their capabilities
- Easily handles power of up to 50 watts
User questions & answers
| Question: | Can I use this with a low level input and output? Like from an iPhone (aux) to a self powered computer speaker |
| Answer: | These are designed to be hard wired close to tweeter speaker (high frequency range of our hearing) to stop the base notes from reaching the tweeter speaker. Tweeter speakers cannot respond to the lower frequencies but with the low frequency signal applied to the tweeter speaker, it causes noise and greatly reduces the clarity of the high notes. What you are looking for to patch your phone audio output into self powered computer speakers is an attenuater. This device reduces the output voltage of your phone to a pre-amp level in order not to overdrive the computer speaker amplifier. type in attenuater in the amazon search and you will get everything from hard wire to RCA plug in. |
| Question: | My full range speakers are dayton audio nd65-8 2-1/2 (8 ohm) and i want to add the dayton audio dc25t-8 (8 ohm), will this blocker work fine |
| Answer: | If you are wanting to eliminate bass being emitted from your speaker, then yes, this will work. |
| Question: | I am replacing factory tweeters that I believe are 2 ohms since the doors are. Will this be ok |
| Answer: | So at 2 ohms all frequencies from 0 -11200Hz which is way too high up. The mids and most of the highs will also be blocked. Yes, they would work however; I don't think you would be happy with the sound produced. At 2-ohms I think these "PAC BB-5PR Pair of 3.5" Bass Blocker" would work better as this one would only block 0-5600Hz. I would not assume the tweeters are 2-ohms just because the door speakers are; it would be best to test the speaker to ensure that is correct. Good Luck |
| Question: | Can I use these along with the capacitors that comes on the tweeter |
| Answer: | Just swap them out |
PAC BB-5PR Pair of 3.5" Bass Blocker
PAC
Product description
Pair of 3.5" Bass blockers. Blocks 0-2.8khz At 4 ohms. Simple installation. Passive crossover designed for 3.5" Speakers.
- Pair of bass blockers
- Used for removing bass from speakers to prevent damage
- Frequencies blocked: 4 ohms: 0-2.8 Hz
- Filters out unwanted frequencies sent to the speakers
- Passive crossover designed for 3.5" Speakers
User questions & answers
| Question: | Can these be wired for 2ohm |
| Answer: | These will just block the bass from coming threw the speaker you put them on. Not sure what ohm has do do with it |
| Question: | Do these have polarity |
| Answer: | If you mean directional, no they are not. You just splice them in on the positive wire of your speaker and you are good to go |
| Question: | Does it matter where in the line you install this? closer to amp vs closer to speaker |
| Answer: | Directions show close to the speaker. I don't think it matters. Correct size speaker wire for amp wattage is what's important |
| Question: | Which bassblockers should i use on a 370 watt amplifier |
| Answer: | Not sure but my understanding it depends on the size of the speaker. These are specifically designed for tweeters for the dashboard. There are others for 5" and up speakers check out YouTube there is a video that explains it. Hope this helps |
AUDIOPIPE 5.25" 6.5" 99 UF BASS BLOCKERS 400Hz @ 4 OHM 5-1/4" 6-1/2" 4 PCS
Product description
Audiopipe In-Line Filters (BB-99) 2 packs (4 Pieces Total) These Audiopipe In-Line Filters are used with 5 1/4" and 6 1/2" speakers and helps to reduce drive signal. You will receive 4 in-line filters. Specifications: 2 In-line Filters Non-Polar 10% Capacitor Used with 5 1/4" to 6 1/2" Speakers 99 F, 400 Hz @ 4? Reduces the Drive Signal
- Bass Blockers BB-99
- Removes sounds that are below a certain frequency
- Designed to enhance the performance and power handling of tweeters and midrange speakers by removing frequencies beyond their capabilities
- Frequencies Blocked: 4 Ohms: 0-400 Hz and up / 8 Ohms: 0-200 Hz and up
- Encased in shrink tube with wire leads for easy installation
User questions & answers
| Question: | Will these work with 6 3/4 inch speakers |
| Answer: | Yes |
| Question: | Will this work for my Rockford fosgate 6.5 door speakers there 45 Rms a piece |
| Answer: | Should work fine for this |
| Question: | Will this work on 6x9 speakers |
| Answer: | They could work but if it’s not 5.25 or 6.5 then it’ll block different bass frequency |
| Question: | Will these work for 100 watts rms per speaker? Also what freq. will be blocked on a 2 ohm speaker |
| Answer: | 100 watss yes.. and at 2 ohm it will be 800 Hertz |
PAC - BB4PR BB-4PR Pair of 4" Bass Blocker
PAC
Product description
Pair of 4" bass blockers. Blocks 0-1.2khz At 4 ohms / 0-600hz at 8 ohms. Simple installation. Designed for use with 4" speakers.
- Easily handles power of up to 50 watts
- Orange color coded leads for easy identification
- Encased in heat shrink tubing with wire leads for easy installation
- Pair of bass blockers
- Removes selected frequencies from the audio source
- Frequencies blocked: 4 ohms: 0-1200 Hz / 8 ohms: 0-600 Hz
- Protects the speakers from receiving damaging frequencies
- Designed for use with 4" speakers
User questions & answers
| Question: | Will this work on a 4x |
| Answer: | if it is 4 ohm, they will block all frequencies below 1200hz on any size speaker it is attached to. |
| Question: | would this work for a 99 ram pillar speakers? and how and where do I install it at |
| Answer: | Yes should work fine. U just need to get to the speaker remove the positive terminal and that goes in line. Hook one side to the speaker and the other side to the positive u removed. |
| Question: | Will this eliminated all the bass |
| Answer: | You have to match the correct blocker to the size of speaker to achive no bass only treble |
| Question: | Anyone have issues with these cutting out too much mid-range, essentially turning 2-way 4"-ers in to nothing but oversized tweeters |
| Answer: | I used them on tweeter's, they work great when used for right application. You need different base blockers to let mid range through. |
Audiopipe 133 UF Bass Blockers 300Hz - 4 Ohm 150Hz - 8 Ohm 6"x9" 6"x8" 4 Pack
Product description
Audiopipe Bass Blocker
- Bass Block/inline filter
- For 6" x 9" speaker
User questions & answers
| Question: | What frequency does it block |
| Answer: | The title says 300hz but that comes with a caveat that you are using the same load they were for test. Also, it attenuates and rolls off so there isn't a hard limit. Its just a capacitor so plug it into an RC calculator and run the analysis. |
| Question: | Hi confirming that this item is for 4 pack order |
| Answer: | Yes it is a 4 pack. |
| Question: | This protect and work for Jl tweeters |
| Answer: | Not for tweeters. |
| Question: | can it be used on 6.5 Mids |
| Answer: | I don't see any reason that you couldn't use them on 6.5 mid spks. |
BB-199 6 x 9" 6 x 8, 7 10" 199 UF BASS BLOCKERS 200Hz @ 4 OHM 2 PCS
Product description
These Audiopipe In-Line Filters are used with 6"x9", 6"x8", and 7"x10" speakers and helps to reduce drive signal. You will receive 2 in-line filters. Specifications: 2 In-line Filters Non-Polar 10% Capacitor Used with 6"x9", 6"x8", and 7"x10" Speakers 199 F, 200 Hz @ 4? Reduces the Drive Signal
- Bass Blockers BB-199
- Removes sounds that are below a certain frequency
- Frequencies Blocked: 4 Ohms: 0-200 Hz and up / 8 Ohms: 0-100 Hz and up
- Designed to enhance the performance and power handling of tweeters and midrange speakers by removing frequencies beyond their capabilities
- Used with 6"x9", 6"x8", and 7"x10" Speakers
User questions & answers
| Question: | If I got a amp to my 6x9 speakers and they keep blowing Can this help |
| Answer: | It could, But if you are still over powering a speaker it will blow no matter what.. you have to understand that you will only get so much out of a speaker |
| Question: | Do these really block 0-200 Hz "and up" like the description says, or is it just 0-200 Hz |
| Answer: | I don't know why it says "and up". What these do is essentially create a high-pass filter at 200hz, with 6db per octive rolloff. In other words, everything above 200hz will be at full volume, but once you start going lower than 200, it begins to block more and more, in a downward slope. All bass-blocker capacitors work this way, at their advertised frequency. |
| Question: | On 18w rms would I notice any power loss using these |
| Answer: | I wouldn’t say a loss of power. These capacitors are used to block the low frequencies from the driver elements (speakers) that can’t handle them. This makes the power that has been blocked, available to the other driver elements that are connected to the same wire. Properly installed they should create the appearance (sound) of a clearer audio reproduction (higher fidelity) with greater bass response from the driver elements that can handle the lower frequency power. This is somewhat of a generalization. Your sound should be clearer with no loss of low frequency response, at a minimum, with no power loss. |
Nippon Bass Blocker pair packed
Nippon
Product description
Nippon Bass Blocker 100v 2.2uf In-line For Tweeters. Pair.
- Nippon Bass Blocker Pair Packed
- Installation Access.
- Nippon Bb2.2
4 PCS Bass Blocker Crossover Cap 1200HZ @ 4 OHM 3.5 Speakers BB33
Product description
THIS IS FOR 4 (PCS) OF HIGH QUALITY BASS BLOCKERS BB33 CAP 1.2K @ 4 OHM 3.5 SPEAKERS WE HAVE THESE IN ALL SIZES WE HAVE EVERY TERMINAL/CONNECTOR THAT YOU COULD WANT IN OUR EBAY STORE UNINSULATED COPPER VINYL NYLON BULLET BUTT RING SPADE T TAPS SCOTCH LOCKS CLOSE END CAPS WIRE NUTS ETC.
- HIGH QUALITY BASS BLOCKERS
- CAP 1.2K @ 4 OHM 3.5 SPEAKERS
AUDIOPIPE 14 UF BASS NOISE BLOCKERS 2.8khz @ 4 Ohm 3.5 to 4 2 PCS
Product description
Pair 14 UF Audiopipe In Line Filter Speaker Bass Noise Blocker Suppressor Noise
- Audiopipe In-Line Bass Blocker Filters
- Non-Polar 10% Capacitor
- Used with 3.5" to 4" Speakers
- Reduces Bass Frequency below 2.8 kHz
PAC BB-1PR Pair of Bass Blocker/Passive Crossover
PAC
Product description
Pair of bass blocker / passive crossover. Removes 0-300hz at 4 ohms / 0-150hz at 8 ohms. Simple installation.
- Easily handles power of up to 50 watts
- Blue color coded leads for easy identification
- Encased in heat shrink tubing with wire leads for easy installation
- Pair of bass blockers
- Used for removing bass from speakers to prevent damage
- Frequencies blocked: 4 ohms: 0-300 Hz / 8 ohms: 0-150 Hz
- Filters out unwanted frequencies sent to the speakers
- Passive crossover designed for 6" x 9" speakers
User questions & answers
| Question: | Is one order for two speakers |
| Answer: | It is a pair - for two speakers |
| Question: | I have a pair of 2-way 3.5s that handle 150W. Trying to get a vocal sound. Do you have anything that will work with this application |
| Answer: | I have these on my 2 way pioneer 3 1/2 and nothing but clear vocals easy application too |
| Question: | When buying these I searched for ones that work for 6.5" and 5.25" kickers and then received them and it says they are for 6x9's can I still use them |
| Answer: | although I cannot assure you with certainty that they work with (your) 6.5 and 5.25's, I would have to assume they do... maybe look more closely at wattage rating but it really doesn't seem as though you're exceeding they're natural ability... best luck~ |
| Question: | Do they eliminated all the bass |
| Answer: | Just to clarify, a capacitor is a first-order filter. That is -3dB at the cutoff frequency (eg 300Hz @ 4ohm or 150Hz @ 8ohm and so on) then -6dB per octave below that. This is not an absolute cutoff. The amount that actually reaches the speaker drops fairly quickly, but some still gets through. At 4ohms (typical for car speakers) the filter should be fairly effective since by the time you reach the ranges that cause significant distortion in a mid-woofer (approximately 100 or so) it should be reduced significantly. At 8ohms it would depend very much on the quality of the speaker, but I do find that aiming for ~150Hz will probably actually be fairly tolerable for a good quality speaker in a good enclosure. Just make sure whatever you use your subwoofer is tuned to complement it. Here is a convenient calculator for passive filter systems if it helps you any: https://www.the12volt.com/caraudio/crosscalc.asp#ccc |
Nippon Bass Blocker pair packed
Nippon
Product description
NIPPON BB4.7 NIPPON BASS BLOCKER PAIR PACKED FOR 1" OR BIGGER TWEETERS -
Overview:
INSTALLATION ACCESS.
Specification:
NIPPON BASS BLOCKER PAIR PACKED FOR 1" OR BIGGER TWEETERS
- NIPPON BASS BLOCKER PAIR PACKED FOR 1" OR BIGGER TWEETERS
- INSTALLATION ACCESS.
- NIPPON BASS BLOCKER PAIR PACKED FOR 1" OR BIGGER TWEETERS
- NIPPON BB4.7
User questions & answers
| Question: | what is the frequency cut |
| Answer: | As far as I’m aware they are the same! I have the purple and it’s normal. |
| Question: | Will these work on house speakers my highs are getting the bass from sound bar just want vocals from my highs not bass |
| Answer: | Hi，dear，our glue is latex-free. Because the eyelashes and glue can be purchased at the same time, the comments will be shown to the customer together. Please be assured that our glue is latex-free and hypoallergenic. |
| Question: | Will this fit some 6x9 from burning from bass |
| Answer: | Our workers combed the mink with a comb gently so that they could get real mink fur. Instead of killing the animals. We obey the animal protectionism strictly all the time andl never hurt the cute animals. Thanks for choosing Bepholan |
| Question: | Whats the frequency |
| Answer: | Depends on the product sweetheart always read throughly first before purchasing. |
Audiopipe 133 UF Bass Blockers 300Hz - 4 Ohm 150Hz - 8 Ohm 6"x9" 6"x8" 5"x7"
Product description
Audiopipe BB133 Bass Blocker for Speakers Non polar 10% Capacitor For 6x9, 5x7 to 6x8 Speakers 133uF 300Hz @ 4 ohm
User questions & answers
| Question: | Do they work on 4 way 6x |
| Answer: | I think it would be too big. Just looking st my two year old and comparing and I can’t see it fitting any smaller of a head. |
| Question: | Will thease work on 51/4 inch door speakers |
| Answer: | No the diameter is for an adult size head |
| Question: | Will they work on a pair of 6.5 hook to a amp |
| Answer: | Yes, but good luck having her keep it on. I think the branches make it itchy. I tried on my 12 month old, and she kept ripping it off. |
| Question: | Max watt |
| Answer: | Idk if it's vegan or not! |
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