Amp Situation

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=82106
Printed Date: May 01, 2024 at 1:09 AM

Topic: Amp Situation

Posted By: cloak559
Subject: Amp Situation
Date Posted: August 27, 2006 at 1:31 AM

Just got my new sub in today and its a Dual 3ohm VC sub...I have a Kenwood KAC 9102d to put the power to it. Im going to wire it up in parallel for a 1.5ohm load, but my amp is only 2ohm stable. Now, after box rise and what not would I be hitting somewhere around 2ohms? and if not, will that amp take a 1.5ohm load? or should I just invest in the Hifonics amp ive been looking at?...

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'89 Mercedes-Benz 300E
Pioneer DEH-5900UB
(2)RE Audio SX 10"s
(1)US Amps MD3D
3ft^3 @ 37Hz

Blowing up in a car accident doesnt worry me, as long as I'm putting out some major dB's when I die...

Replies:

Posted By: Flakman
Date Posted: August 27, 2006 at 2:15 AM

No...you will still be looking at 1.5 ohm. Your amp will probably start to go into thermal shutdown even if it doesn't go into protect mode.

My advice, don't use the Hifonics, go with a JL amp that can handle 1.5 to 4 with no problems.

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The Flakman
I feel strange. I have deja vu and amnesia at the same time.

John | Manteca, CA

Posted By: luckydevil
Date Posted: August 27, 2006 at 3:33 AM

I would go ahead and wire the sub to show the 1.5 ohm load and then take a reading with a multimeter. It might actually be closer to 2 ohms than you think. Then again it may also be closer to 1 ohm.

I had a pair of 12's today wired for 4 ohms and they were actually showing 3.6 ohms on the multimeter.

Someone please correct me if I am wrong here.

Posted By: KarTuneMan
Date Posted: August 27, 2006 at 8:08 AM

Either way....the Kenwood will shut down....

Posted By: cloak559
Date Posted: August 27, 2006 at 11:00 AM

I guess im just going to have to invest in a 1ohm stable amp...My budget is real low right now, so im looking for something under $300...Which one would be best the Hifonics BXi 1206D or the Kenwood Excelon KAC-X812D ???...Im looking for somewhere between 700-1200w.....

-------------
'89 Mercedes-Benz 300E
Pioneer DEH-5900UB
(2)RE Audio SX 10"s
(1)US Amps MD3D
3ft^3 @ 37Hz

Blowing up in a car accident doesnt worry me, as long as I'm putting out some major dB's when I die...

Posted By: cloak559
Date Posted: August 27, 2006 at 11:50 AM

Buddy of mine just offered me a Kenwood KAC-9152d for $100...Its 1-ohm stable, but he says it gets a bit hot at 1ohm...You think it being at 1.5 would put a little less stress on it?

-------------
'89 Mercedes-Benz 300E
Pioneer DEH-5900UB
(2)RE Audio SX 10"s
(1)US Amps MD3D
3ft^3 @ 37Hz

Blowing up in a car accident doesnt worry me, as long as I'm putting out some major dB's when I die...

Posted By: aznboi3644
Date Posted: August 27, 2006 at 11:58 AM

If the amp gets hot but doesn't shut down than you'll be fine...amps aren't 100% efficient