a car woofer with your surround?
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=117551
Printed Date: May 05, 2024 at 1:13 PM
Topic: a car woofer with your surround?
Posted By: alaisneo
Subject: a car woofer with your surround?
Date Posted: November 07, 2009 at 4:12 PM
I have a 15inch Memphis woofer that im going to be putting in my house. I want to run it on my surround, vr-407 kenwood. The problem is that it only has the black outputs to goto another amp. I think this is digital some units have analog you know - + I was wondering if it were possible to hook this up another way on this unit and still get all my lows and 5 other speakers?
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I love sound
Replies:
Posted By: DYohn
Date Posted: November 07, 2009 at 6:36 PM
You will need a home subwoofer amplifier for your subwoofer, the receiver will not power it. Does that receiver have a subwoofer line-level (RCA) output? ------------- Support the12volt.com
Posted By: alaisneo
Date Posted: November 07, 2009 at 6:47 PM
It has a single subwoofer rca output (color coated black)
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I love sound
Posted By: i am an idiot
Date Posted: November 07, 2009 at 7:51 PM
There is nothing digital about your subwoofer output. It is black and has only one jack because it is a mono output. Some units do have a stereo output. I think you were referring to a red and white RCA when you said + & -. If you have an old stereo reciever laying around, you can use that as an amplifier for your subwoofer. Simply connect the black jack on the back of your surround receiver to the left CD input of the reciever you plan to use as an amp. Connect your woofer to the left channel of the A speaker terminals.
The Memphis woofer, is it single or dual voice coil? What is the impedance of the coil(s)?
Posted By: alaisneo
Date Posted: November 08, 2009 at 2:05 PM
2 x 2 are the coils ima drop it to 4 my stereo is stable at 8 and 4
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I love sound
Posted By: DYohn
Date Posted: November 08, 2009 at 3:47 PM
alaisneo wrote:
2 x 2 are the coils ima drop it to 4 my stereo is stable at 8 and 4
I have no idea what you mean... but it is not a good idea to power your sub from the amps in your receiver. ------------- Support the12volt.com
Posted By: alaisneo
Date Posted: November 08, 2009 at 4:17 PM
The sub has 2 coils each at 2 ohm. Im going to bridge it to 4. I have a home amp that im going to put to it. Your saying that I should not do this?
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I love sound
Posted By: i am an idiot
Date Posted: November 08, 2009 at 6:46 PM
If the receiver you have laying around has a problem with the 4 ohm load, it will let you know. Some older units were not stable into a 4 ohm load, but they did have some awesome protection circuitry that would shut it down if it saw a problem.
Posted By: j.reed
Date Posted: November 09, 2009 at 12:16 AM
If you have a little money setting around you could use a amplifier which works all the way down to 2ohm per channel. Like this crown amp for an example.
https://www.guitarcenter.com/Crown-XLS-202D-Power-Amplifier-103635520-i1145680.gc
This is only an example. Im sure there are better places to buy. Maybe this will help put you on the right path though. ------------- 
Posted By: alaisneo
Date Posted: November 11, 2009 at 6:52 PM
I tryed that and it did not work???? The old stereo I have the receiver is separate from the amplifier. I could not get it to work what am I doing wrong. I rn the mono bass out into the right cd input. Then I have a front and rear output that goes to the amp I did that with just the right channel. And I tried ever speaker output does not work.
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I love sound
Posted By: DYohn
Date Posted: November 11, 2009 at 7:49 PM
Are you trying to power a 4-ohm speaker with your receiver? ------------- Support the12volt.com
Posted By: i am an idiot
Date Posted: November 11, 2009 at 9:05 PM
Connect your tuner back to the amplifier and make it play. Then unhook the RCA cable from the tuner and connect the cable back to the surround receiver. Also check to make sure the tape monitor button is not depressed.
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