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Amp choosing and wiring

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=4302
Printed Date: August 19, 2025 at 2:04 PM


Topic: Amp choosing and wiring

Posted By: hamrajw
Subject: Amp choosing and wiring
Date Posted: October 09, 2002 at 10:48 AM

I currently have a Kenwod head unit with preamp outputs for front and rear. I also have 2 Infinity 10" subs 250 W each @ 4 ohms. I was curious what amp I should get and how I would connect it to power the subs as well as the front and rear speakers. I was also looking to keep the price down. Thanks for the help.




Replies:

Posted By: Velocity Motors
Date Posted: October 09, 2002 at 11:22 AM

Your best bet is a 5 channel amplifier for the budget minded consumer. Your not going to get high fidelity with a 5 channel amplifier but it will power the system moderately. Almost all manufacturer's have 5 channel amps in their product line. The final decision will be how much money you want to spend on an amplifier and I would wire the subs in parallel to get the most out of the sub channel on the amp.



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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: hamrajw
Date Posted: October 09, 2002 at 2:17 PM

Thanks for the info. I'll check on one of those.





Posted By: hamrajw
Date Posted: November 06, 2002 at 2:09 PM
what about using 2 2 channel amps. One for the subs and the other for both the front and rear speakers?




Posted By: Velocity Motors
Date Posted: November 06, 2002 at 2:30 PM
You loose fade by doing this and also the clarity of a 2 chanel amp is not as good as a 4 channel amp.

-------------
Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA




Posted By: JellyNutz
Date Posted: November 11, 2002 at 3:21 AM
You could do that, but as jeff said, you'll lose SQ.  The lower the impedence the lower the damping factor.  However, you could use resistors or l-pads to set you your rear fill.  Its just all a matter of how much money you want to spend.  Besides, you can get the same version of the 2 channel amp in a 4 channel version for just a little bit more from a lot of manufacturers.  And if do get a 5 channel amp, make sure your sub channel is stable at 2 ohm mono before wiring your subs in parallel.  Otherwise, get 2 4 channel amps so you can maximize the effeciencly of your subs (2 4 Ohm loads for 2 bridged channels of a 4 channel amp, 4 channels for front and rear)





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