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Crutchfield Bass Blockers Pair of inline frequency filters (150 Hz cut-off)

Item # 007BB150

Protect your new car speakers from bass distortion and enjoy cleaner sound with Crutchfield's Bass Blockers.

Protect your new car speakers from bass distortion and enjoy cleaner sound with Crutchfield's Bass Blockers.

Item # 007BB150

In stock
C$13.99

Other options

About the Crutchfield Bass Blockers

Alexander H.

Eliminate bass distortion in your speakers

Protect your new car speakers from bass distortion and enjoy cleaner sound with Crutchfield's Bass Blockers. Each Bass Blocker handles up to 50 watts RMS with a 6 dB per octave roll-off. Here are some general guidelines for matching Bass Blockers to speaker size.

Eliminate bass distortion in your speakers

Protect your new car speakers from bass distortion and enjoy cleaner sound with Crutchfield's Bass Blockers. Each Bass Blocker handles up to 50 watts RMS with a 6 dB per octave roll-off. Here are some general guidelines for matching Bass Blockers to speaker size.

Speaker Size Cut-off Frequency

6-1/2", 5"x7"/6"x8" — 150 Hz

5-1/4" — 300 Hz

3-1/2", 4", 4"x6" — 600 Hz (low power)

3-1/2", 4", 4"x6" — 800 Hz (high power)

Tweeters — 5,000 Hz

These models come fitted with easy-to-use quick-slide connectors that make installation a cinch — no splicing or crimping needed.

The listed cut-off points are at 4 ohms. If you use 8-ohm speakers, the cut-off point is half the listed frequency. If you use 2-ohm speakers, the cut-off point is double the listed frequency.

Note: You can connect these Bass Blockers in either direction, as the built-in capacitors are not polarized.

READ LESS
  • pair of inline high-pass filters (150 Hz cut-off)
  • handle up to 50 watts RMS
  • 6 dB per octave roll-off
  • warranty: 1 year
  • MFR # BASS-265

What's in the box:

  • Two 150Hz bass blockers (attached 6" speaker wires on either end terminated by male and female quick-slide connectors)

Customer reviews for Crutchfield Bass Blockers

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4.5 out of 5 stars
243 reviews

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More details on the Crutchfield Bass Blockers

Mark G.
The Crutchfield Bass Blockers replaces these items:

Product Research

Features

Bass Blockers: Bass Blockers stop speaker distortion caused by excessive bass relative to a speaker's bass output capability. They are especially useful with small diameter speakers and tweeters.

Crossover Point: The crossover point changes based on the speaker impedance.

Model 2 ohms 4 ohms 8 ohms
007BB150 300 Hz 150 Hz 75 Hz
007BB300 600 Hz 300 Hz 150 Hz
007BB600 1,200 Hz 600 Hz 300 Hz
007BB5000 10,000 Hz 5,000 Hz 2,500 Hz

Easy Installation: To install the Bass Blockers, slip the female connectors of the bass blocker onto the positive and negative speaker terminals of the new speaker, and plug the male connectors into the speaker wiring adapter harness' positive and negative leads. If you don't want to use the terminals, cut them off, cut the speaker lead at a convenient location close to the speaker, then splice the Bass Blocker into the positive and negative speaker leads and insulate the connections. Bass blockers are not directional, so the orientation of the Bass Blockers on the positive and negative speaker leads is not important. Polarity is important; the white wire is positive and the black wire is negative.

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Customer Q&A

14 questions already asked

Q
Do I need bass blockers for a 2005 corvette 3 1/2" speakers with the Bose system? Or does the Bose system already split the frequencies between the door subs and door tweeters?
brett  Nov 23, 2022
1 answer
A
The stock amp has separate amp channels powering the speakers in the 2005 Chevy Corvette Bose sound system. The stock amp should already be filtering the audio and we do not expect these to be needed in this application.
jason  Nov 23, 2022 (Staff)
Q
Looking at the JBL club 322 3.5" , what size of these bass blockers do I need to protect them from blowing on same frequency as front doors? Not using an amp at first but may get a smaller one later.
ray  Jul 17, 2022
1 answer
A
If you are looking to protect the smaller JBL's and are planning on banging on the volume knob, the Bass Blocker is absolutely needed Ray. These 300hz cutoff versions would be a great solution now AND later when you add the amp. I would not use an amp that exceeds the 45-50 watt RMS number, staying under that this blocker should work well! The JBL's come onboard around the 90hz mark so you could even use the 150hz blocker in the link below now on radio power, but that won't provide the same protection when you add the amp. Either one you choose, it's going to keep distortion out of the JBL's and sound great Ray! https://www.crutchfield.com/p_007BB150/Crutchfield-Bass-Blockers-150-Hz-cut-off.html?tp=3216
bo  Jul 17, 2022 (Staff)
Q
I have 4" separates i plan to run with 6x9's. Should these bass blockers be inserted before or after the Component speaker 2-way crossovers?
daniel  Aug 20, 2021
2 answers
A
Bass blockers go on the speaker itself to block the bass frequencies to that speaker.
james  Aug 21, 2021
A
You only want to install them to block bass on speakers that are too small to handle the bass such as the 3 1/2" speakers I installed in my dash.
mike  Aug 20, 2021
Q
Would these work on kicker 2 way 4x6 powered by Pioneer avic-6200nex?
mrdoorman0000  May 10, 2020
1 answer
A
Yes they would work on this setup providing your speakers aren't powered past 50W
daniel  Aug 11, 2021
Q
If my front tweeters are wired with my 2 Front Door Speakers, do I need to purchase another set for the front speakers and connect the set I already bought to the tweeter wires before they merge with the door speaker wiring?
christopher  Nov 23, 2019
1 answer
A
These bass blockers should only be connected to your door speakers. They are not appropriate for protecting your tweeters from low frequencies. If your tweeters are factory equipment they should already have a passive crossover in place, so you only need the one set of bass blockers. If you have aftermarket tweeters you should use the supplied crossovers that came with the aftermarket tweeters and connect them to the door speakers.
brian  Nov 23, 2019
Q
Would this be the correct bass blocker for Kenwood KFC-X2C 2.75 mid range dash speaker? It's running on factory head unit no amp & no subs.
shafwaa  Sep 17, 2023
1 answer
A
Greetings Jeffery. thank you for your question. Technically the frequency range of the X2C speakers are 800-20,000 Hz. You really would not need any bass blocker because the X2C speakers already come with their in line filter blocking out at 800 Hz.
hogan  Sep 17, 2023 (Staff)
Q
the bass blocker has 4 connectors. do i connect all 4 or just inline which a single wire and then leave the other wires disconnected? in videos i only see people wire bass blockers onto one side of speaker. not connected to both sides
albert  Jul 27, 2023
1 answer
A
Greetings Albert, and thank you for your question. The white wire goes through the bass blocker, the black wire just passes through and can either be used to connect the negative wire to on both sides, or can be ignored, only the positive (white wire) needs to be connected.
hogan  Jul 27, 2023 (Staff)
Q
My application (2021 Tacoma fronts, non-JBL) uses two parallel wired 4 ohm speakers (dash & front door). I am looking for a 600 Hz cutoff for the dash speaker, can you confirm that I need to use 600 Hz bass blockers or does the parallel wiring require 300 Hz blockers to result in a 600 Hz cutoff?
rodney  Sep 28, 2021
2 answers
A
the 600 Hz bass blockers I purchased and installed work very well - i installed them with my 2-way speakers I installed in the front dash of my truck to allow the 3-ways I installed in the doors to transmit and handle the bass notes properly - definitely consider them
fredrick  Sep 28, 2021
A
wiring in parallel will have nothing to do with frequency cut off, it will only affect ohm's. your stock speakers probably had cut offs built in.
joseph  Sep 28, 2021
Q
I have 2007 Denali a pillar tweeters and I need to know what crossover or bass blocker to use?
michael  Sep 17, 2020
1 answer
A
Hi Michael, we will be happy to assist you, however, we will need a little more information regarding your vehicle, as well as the tweeters that you will be installing. Please give us a call at 1-800-324-9695, or chat with us online! We look forward to working with you.
jessica  Oct 02, 2020 (Staff)
Q
Can I use these bass blocker for a Kicker 4ohmns 2.75 dash speaker?
juan  Aug 03, 2020
4 answers
A
I use them for a 3.5-inch dash speaker. Makes a world of difference. More of mid and highs, balancing out all 6 speakers in my ram 1500. Well worth it.
paul  Aug 03, 2020
A
I used this for my dash speakers that are the same size but not kicker. They work great especially if your dash speakers are anything like mine are. They were super distorted before putting this product in.
ruari  Aug 03, 2020
A
Yes they will work well. I used them in line with my dash speakers. I cut the wires off the speaker harness that came with the order and soldered the bass blockers to the speaker harness.
david  Aug 03, 2020
A
Yes, that's what I used them for.
philip  Aug 03, 2020
Q
i have JBL Club 3020 3-1/2" 2-way car speakers will these work better than the 270 microfarad capacitors that came with the speakers?
gerard  Mar 08, 2020
1 answer
A
Thank you for your question. Using the included capacitors that come with the JBL Club's would be recommended, but depending on your overall need or sound performance, you may wish to use the Crutchfield Bass Blockers. Please chat with an Advisor online or by phone at 1-800-324-9695. We will be happy to go over your system, and help you decide on the best course of action.
jessica  Mar 24, 2020 (Staff)
Q
I have 2 speakers that are 4" but run at 8ohms. The other 2 are 4x6s and run at 4ohms. I see that these are rated at 600hz at 4ohms. What do you suggest I use for the speakers running at 8ohms?
andrew  Nov 10, 2018
1 answer
A
You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss the compatible options. They will be able to determine if everything will integrate and help you make the best decision for your system and your budget.
kenneth  Nov 17, 2018 (Staff)
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