Question about Kenwood KAC-7201 Car Audio Amplifier

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KAC-7201 no sound from subs.amp is on.

My amp plays for a little while and then no sound from subs.its getting power and everything is hooked up right.but if i shut the car off or turn the radio off for a while it will work again

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  • 152 Answers

It sounds like your amp is overheating.
Check to see if its location is well vented, in the past, I have had to install ports/ vents and sometimes fans, when an amp could not be relocated.
Good luck...

Posted on Feb 24, 2009

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Everything was workoing fine. then one day no


if power light is on and no sound check audio jacks on amp and to speakers

Jun 06, 2010 | Kenwood KAC-7201 Car Audio Amplifier

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make sure you have seperate power and gound seperate remote wires and if it does have a pass through then use it but i would hook up one at a time make sure they both work if after all this and it dont then your deck may not have enough power coming out of it to power the rca's or use y adapters from the cd player and run 2 sets of rca's.

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Still no sound coming out of subs?


your best bet is to get a new radio with tha ipod hookup so u dont have to deal with this problem in tha future

Feb 24, 2010 | Kenwood KAC-7201 Car Audio Amplifier

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Amp turns on but no sound from subs? everything is connected to thier proper slots. What could it be?


Check to see if your deck has a sub on/off option in the menu or settings if it don't you may have blown amp chanells or bad RCA preouts on deck or bad RCA in on amp

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My subs/amp are not working


when you car is running, it charges the battery somewhat. So the voltage problem is not a problem. The red light means the amp is going into ''Protect Mode". This usually happens when something is wrong with the amp. Usually the amp is getting hot. Check all of you connectiong and check the final impedance of the subs. Make sure the amp can handle the impedance of the subs. If you need anymore help, message me.

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Dec 31, 2009 | Kenwood KAC-7201 Car Audio Amplifier

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How too hook my kac 7201 up to my two dual 4 ohm Alpine type Rs


Hello manbearpig65,

Well, that's a 2-channel amp, so it's really best used to power a set of regular speakers.

The best power solution, for your existing components, is to wire each of your subs voice coils in parallel, resulting in a 2 ohm load, and then run each sub off a separate channel from the amp.

The amp is stable only to 4 ohms in bridged mode, so you would series the sub voice coils (8 ohm load) and then parallel them (4 ohm load) to the amp bridged connection. This will result in less power to each sub than if you ran them separately.

Hope this helps.

Apr 10, 2009 | Kenwood KAC-7201 Car Audio Amplifier

1 Answer

Connecting subwoofer to kac-7201 kenwood amp


from your sub connect one short piece of cable from + on one side to - on the other side using the same diameter cable as you are running to the sub from amp . this will leave you with + and - on opposite sides of speaker these will then run to the amp +to+ and - to- on the mono side of connetor which is one left + and one - right and the amp switched to bridged

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3 Answers

KAC-9102d no sound, Amp powers on but no sound to the subs.


If the sub isn't working, you won't get a pop. All you need is a small speaker. Don't need a sub, you just want to test the sound. I recently blew 2 subs, no smoke, no smell, no sign of being blown. Absolutely nothing from the subs.... In the past my sub locked up. You can take your sub out of the box and hook the + and - to the battery to see if you can get the sub to pop there. I believe a small box will push a sub into a deep excursion to the center of the cone. I have 2 lanzar VW12D's that just quit. I hooked a 6 x 9 up to my amp and low and behold I had sound! Try that and see what you get...

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