Which Amp Is Better Out Of These Two?

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=28289
Printed Date: May 11, 2024 at 11:22 PM

Topic: Which Amp Is Better Out Of These Two?

Posted By: bebefouch
Subject: Which Amp Is Better Out Of These Two?
Date Posted: March 13, 2004 at 1:17 AM

Alright. I have 2 12" kenwoods in a ported box. I want to bridge them. First I need an amp. I have 2 choices...

Kenwood KAC-7251
2-channel
150 watts RMS x 2 at 4 ohms
230 watts RMS x 2 at 2 ohms
460 watts RMS x 1 bridged output at 4 ohms
stereo or bridged mono output
4-ohm stable in bridged mode

On the Kenwood Website it also says its 2-ohm stable.

Kenwood KAC-8151D
1-channel
200 watts x 1 at 4 ohms
400 watts x 1 at 2 ohms
500 watts x 1 at 1 ohm
1-ohm load capability

Which one is better for bridging two 4ohm 12" subs?

Replies:

Posted By: Ketel22
Date Posted: March 13, 2004 at 1:58 AM

the mono block would most likely work better because you would be running the subs at 4ohms on the two channel amp.

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Posted By: netboy
Date Posted: March 13, 2004 at 2:50 AM

mono block is class D i believe, which makes it much more power efficient which is good.

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Memphis MC-1300
2 12" JLw6v2
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Posted By: DYohn
Date Posted: March 13, 2004 at 9:47 AM

A minor point, but you don't "bridge" speakers, you "bridge" amplifiers. What you mean is you want to connect both subs in parallel. I agree, go for the mono amp. The KAC-7251 is NOT 2-ohm stable when bridged. It is 2-ohm stable in stereo. Go for the mono amp.