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Crutchfield Bass Blockers

Pair of inline high-pass filters (5000 Hz cut-off) for tweeters

Item # 007BB5000

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

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

California customers:
Please click here for your Proposition 65 warning.

Item # 007BB5000

In stock

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Since 1974

Years of experience making people happy.

60-day returns

If you don't love it, send it back.

About the Crutchfield Bass Blockers

Eliminate bass distortion in your tweeters

Protect your new tweeters 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.

Eliminate bass distortion in your tweeters

Protect your new tweeters 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.

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

  • pair of inline high-pass filters
  • handle up to 50 watts RMS
  • 5000 Hz cut-off (6 dB per octave roll-off)
  • warranty: 1 year
  • Our 60-day money-back guarantee
  • MFR # BASS-8

What's in the box:

  • Two 5000Hz bass blockers (attached 6" speaker wires on both ends)

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Crutchfield response

<< >>

More details on the Crutchfield Bass Blockers

Mark G.

Product Research


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

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Customer Q&A

11 questions already asked

These don't come with the male and female spades? This particular one don't have them shown.
[ Ray  Jul 16, 2022 ]
1 answer
Unfortunately they aren't attached to these bass blockers like some of the others. We do carry the crimp on quick slides and you will see those under the "accessories" tab for the bass blockers.
[ Brooke  Jul 16, 2022 ]  Staff
If I used these on a 400 watt 4 channel amp that I am running 4, 8 ohm 100 watt PA speakers off of, would that cut the bass out so it can only produce what it is meant to as well as allow me to push them to full potential?
[ Tyler  Aug 11, 2021 ]
1 answer
Bass blockers are designed to cut out bass frequencies. If you are running bass speakers you can run these on all 4, but if you still need these speakers to produce some bass, you may want to just control it on the amp
[ NICHOLAS  Aug 13, 2021 ]
Could I use these in a bi-wire scenario for home speakers? I have a pair of 8ohm towers that I want to bi-wire. The internal crossover is 2.5k. I was thinking to put this filter on the speaker wire going to the tweeter to filter any lower frequency from traveling back down the low frequency wire and back up the high frequency wire. Would this make sense to do?
[ Jason  Feb 16, 2021 ]
1 answer
There is no gain by doing this, the purpose of having the dual binding post is to use a separate amps ( bi-amp) to power the highs and lows on the speaker. Bi-wiring allows you to eliminate the jumpers on the terminal posts. Another feature of having the dual posts is adding a capacitor or l-pad to tame the highs if they are too bright or prominent,
[ Zach Freimanis  Feb 16, 2021 ]
What sort of wire do these have?
[ JohnSmith  Dec 12, 2020 ]
1 answer
The wire is made of tinned oxygen free copper
[ Paul  Dec 23, 2020 ]  Staff
If I use these in combination with 4ohm tweeters that have internal crossovers. Will it effectively lower their volume or â??softenâ?? them?
[ Keenan  May 12, 2020 ]
1 answer
If the tweeter already has internal cross over then these won't help, yes the volume will be a little lower.
[ Binh  Jun 16, 2020 ]
I see that these are rated for 50w RMS. My amp puts out & my speakers are rated for 60w RMS. This may be a dumb question, but are these straight up incompatible with that difference in RMS? Would it be a bad idea? If so, doesn't anyone know of any higher RMS bass blockers I could buy?
[ Shmoney  May 08, 2020 ]
1 answer
They are only rated for 50 watts because they are most often used in situations where there is not an amp. Does your amp have a high-pass crossover setting? This would allow you to simply not send the frequencies the bass blockers are supposed to be blocking making them unnecessary. If you don't have a high-pass crossover you can still use them. You just might damage them if you are pushing your amps to full capacity.
[ Cosmo  Jun 01, 2020 ]  Staff
How to install the bass blockers?
[ Rudy  Apr 14, 2020 ]
1 answer
I have not used these?
[ Paul  Apr 14, 2020 ]
Should I put these between a component speaker and its crossover or would they even be necessary?
[ Chandler  Oct 05, 2019 ]
2 answers
It depends, some components come with their own, or built in... I used them to hookup factory tweeters when I swap the door speakers and removed proprietary electronics which probably had a hpf...
[ David  Oct 06, 2019 ]
Your crossover will handle the mids between the speaker and the tweeters, you would need them on lets say a front deck set, since those normally would be inline with your door speakers.
[ Joseph  Oct 05, 2019 ]
What would the frequency cut off be on a 2 ohm (metered at 2.5 ohm) JBL tweeter?
[ Charles  Jun 11, 2018 ]
1 answer
If you use 2-ohm tweeters, the cut-off point doubles; making it 10,000 Hz instead of 5,000. For more details or to discuss further, please contact an Advisor directly by phone (888.955.6000) or online chat. Thanks!
[ Larry  Jun 19, 2018 ]  Staff

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