Amp choosing and wiring

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hamrajw

Member - Posts: 41

Joined: July 02, 2002

Location: United States

Posted: October 09, 2002 at 10:48 AM / IP Logged

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.

Velocity Motors

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Joined: March 08, 2002

Location: Manitoba, Canada

Posted: October 09, 2002 at 11:22 AM / IP Logged

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.

Jeff

Velocity Custom Home Theater

Mobile Audio/Video Specialist

Morden, Manitoba CANADA

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hamrajw

Member - Posts: 41

Joined: July 02, 2002

Location: United States

Posted: October 09, 2002 at 2:17 PM / IP Logged

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

hamrajw

Member - Posts: 41

Joined: July 02, 2002

Location: United States

Posted: November 06, 2002 at 2:09 PM / IP Logged

what about using 2 2 channel amps. One for the subs and the other for both the front and rear speakers?

Velocity Motors

Moderator - Posts: 12,488

Joined: March 08, 2002

Location: Manitoba, Canada

Posted: November 06, 2002 at 2:30 PM / IP Logged

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

JellyNutz

Copper - Posts: 85

Joined: August 18, 2002

Location: United States

Posted: November 11, 2002 at 3:21 AM / IP Logged

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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Amp choosing and wiring

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