Bass Blocker

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=24865
Printed Date: May 18, 2025 at 4:18 PM

Topic: Bass Blocker

Posted By: CousinCleotis
Subject: Bass Blocker
Date Posted: January 19, 2004 at 9:48 AM

Hi All,

I want to install a Q Power bass blocker between a jvc head unit and a 4" jvc 2 way speaker. My queation is which wire on the bass blocker is positive and which is negative? One is green and one is green w/red stripe. Does it matter?

Thanks, Cousin Cleotis

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Replies:

Posted By: DYohn
Date Posted: January 19, 2004 at 11:26 AM

A "bass blocker" is generally a capacitor designed to function as a 6db per octave passive crossover. It is connected in series with the speaker's positive lead. It doesn't really matter which lead is which, so connect the striped wire to your amplifier and the plain wire to your speaker's positive trerminal.

Posted By: CousinCleotis
Date Posted: January 19, 2004 at 11:38 AM

Hi DYohn,

Thanks for the response.

I guess I shoud clarify. This bass blocker has the green and green w/red going in one side and coming out the other, four wires in all. I am running this off of the head unit, no amp.

X-over point 5000Hz

X-over slope 12dB

Thanks, Cousin Cleotis

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Posted By: customsuburb
Date Posted: January 19, 2004 at 12:22 PM

The green is probobly the negative and the green with a red stripe should be positive. Hope this helps.

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Posted By: DYohn
Date Posted: January 19, 2004 at 12:45 PM

Ah, if it is a 12db/octave crossover, then yes, it will have pos/neg on both sides. It didn't come with any instructions? Use customsuburb's suggestion above, and if it doesn't seem to work, switch the leads the other way around.

At 5000Hz crossover point, you will turn your speakers into tweeters. You'll get no bass and very little mids out of them at that X-ove point. It's no probelm, as long as you uinderstand that's what you'll get.

And by the way, running off your HU means your amp is the one inside the HU. :)

Posted By: CousinCleotis
Date Posted: January 19, 2004 at 2:24 PM

Thanks guys!

No instructions with blocker.

Super tweeters is the sound i'm looking for. :)

Have a great day.

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