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Bass Blockers

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Item# 127BB800A2 offer details

Item# 127BB800A2

Review Sumary

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Our take on the Bass Blockers

If you like it loud, protect your speakers from bass distortion and enjoy cleaner sound with Bass Blockers. Each Bass Blocker handles up to 50 watts RMS with a 6 dB per octave roll-off. You'll find some general guidelines below for matching Bass Blockers to speaker size. For smaller speakers (3-1/2"s, 4"x6"s, 4"s), the 600 Hz Bass Blockers work well with low-powered systems, while the 800 Hz Blockers are a better choice for high-power applications.

Speaker Size Cut-off Frequency

6-1/2", 5"x7"/6"x8" — 150 Hz
5", 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)

These models come fitted with easy-to-use quick-slide connectors that make installation a cinch. There's no splicing or crimping — just slide one of the Bass Blocker's connectors onto your Crutchfield speaker harness and the other Bass Blocker connector onto your speaker's positive terminal.

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

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What’s in the box? | In-depth notes

Product Research

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What's in the box?

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  • 2 Bass Blockers with 6" speaker wire at each end (terminated with a 1/4" female slide connector on one end and a male slide connector on the other)
  • Instructions

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

Overview: 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. Bass Blockers are typically installed right before the positive speaker input terminal, in-line with the positive speaker lead.

Easy Installation: To install a Bass Blocker, slip the female connector of the bass blocker onto the positive speaker terminal, and plug the male connector into the speaker lead. 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 speaker lead and insulate the connections. Bass blockers are not directional, so the orientation of the Bass Blockers on the positive speaker leads is not important.

Slope: The roll off rate is 6dB/octave, and the frequency each bass blocker is rated for (i.e. 150, 300, 600, 800Hz, etc.) is the point where response has been lowered by 3dB.

Model 2 ohms 4 ohms 8 ohms Wire Color
127BB150A2 300Hz 150Hz 75Hz Brown
127BB300A2 600Hz 300Hz 150Hz Blue
127BB600A2 1200Hz 600Hz 300Hz Green
127BB800A2 1600Hz 800Hz 400Hz Yellow

Power Handling: Each Bass Blocker is capable of handling up to 50 watts RMS.

 

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1-10 of 35 items >> Sort Results By: Date Reviewed | Rating | Helpfulness
 
5 out of 5

Great Value

Written By DRoyster, Memphis, TN on Wednesday, January 04, 2012
 
Plug and play (04 mustang) unlike previous reviews. Would recommend this product to anyone.
Pros:
This product performed well above my expectations. These Bass Blockers allowed me to keep my factory tweeters while powering with the HU only, no amp. Exactly what I wanted them to do! Crystal clear sound.
Cons:
No cons, this product simply works!
Was this review helpful?    Yes | No
 
5 out of 5

It really works

Written By A Gee, Antioch CA on Monday, August 22, 2011
 
I have 51/4 speakers on rear deck, my pioneer is over driving them. I install this product problem solved
Was this review helpful?    Yes | No
 
4 out of 5

Works

Written By Tom, Middletown, CT on Saturday, July 09, 2011
 
I have a Ford Explorer with NAV and Video from the factory so I want to keep my head unit and I'm not in the frame of mind to install an amp. at the moment, so the base blockers worked magic on my front Boston Acoustic 5-1/4 components.

The head unit has limited bass control and it was not filtering out low bass and even the Boston's can only handle so much before sounding like total s*#@. I tried the 300HZ as indicated but it took to much bass out so i landed with the 150HZ. They sound great, clear upper and midrange with to proper amount of lows. Two complaints:

1. The quick connectors are too wide (they don't fit) and you need to modify

2. The base blockers don't have any marking on them so if you get two types don't mix them up as it's hard to tell the difference. Yeah the wire color different but if you forget what was what you need to perform a sound check to figure it out.
3 out of 3 people found this helpful
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2 out of 5

They work, but...

Written By Malcolm, Atlanta on Thursday, June 16, 2011
 
Once installed they work fine, but getting them in was a process even though it should be simple. 1st, as others mentioned the terminals don't fit a lot of speakers. In our vehicle we have 3 sets of speakers all different brands and the terminals didn't fit any so all had to be modified.

2nd, the solder joint between the wire and the component can be weak. On 1 of them i was installing both sides popped of as i flexed the wires to install the speaker so I had to take it out and re-solder.

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4 out of 5

Not plug and play, but OK

Written By snow4brains, Bay City, MI on Saturday, June 11, 2011
 
They do just what they say. Only issue is the spade terminals are to large for todays speakers. Not a big problem, just cut em off and splice them into your pos speaker wire.
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3 out of 5

They work

Written By Mike M, West Babylon NY on Thursday, April 07, 2011
 
These definitely do their job and work as described, however, I didnt care for
them. I used them on Infinity Kappa series 682.9cf 6x8's and ended up taking
them off after 2 days.
So even though they work, I cant give them 5 stars because I didnt like the
result. I felt the 300hz cutoff was too high for those particular speakers.
1 out of 4 people found this helpful
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4 out of 5

Bass Blockers

Written By RonB, Opp, AL on Wednesday, March 23, 2011
 
Speaker terminal too large for Boston Acoustics postive speaker terminal. You
have to splice in the terminal that comes with the speakers.
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5 out of 5

Awesome Product

Written By Ryan H., Houma, LA on Sunday, March 13, 2011
 
This product is awesome for someone looking to get better highs from your
smaller speakers without having to spend the money for an amp. I have these
installed in my dash and sound bar speakers in my Jeep Wrangler. I didn't
know how they would work at first, but I must say that this has been the BEST
$10 I have spent on sound equipment. They take out the bass to give you
crystal clear results and let the subwoofer do all the heavy hitting with the bass.
I highly recommend these Bass Blockers to anyone that wants to let your radio
push your smaller speakers!!!
2 out of 2 people found this helpful
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5 out of 5

Bass Blockers

Written By Louis, Houston, TX on Wednesday, October 27, 2010
 
I bought these by advise from your advisor. I had never used bass blockers before and they
made my new speakers sound great/
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3 out of 5

Bass Blockers

Written By Oto, Bronx, NY on Monday, September 27, 2010
 
Too difficult to setup with the harnes for Honda Acura aftermarket speakers (don't fit)
Was this review helpful?    Yes | No
 
1-10 of 35 items >>

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Visit our Learning Center to learn more about Bass Blockers

For a more in-depth review and enhanced detailed information on the Bass Blockers, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_127BB800A2/Bass-Blockers-800-Hz-cut-off.html ).

Bass Blockers