Question about Xtant A3001 Car Audio Amplifier

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Powers on but no sound

OK soo the other day i was driving down the road and my sub woofer blew soo thinking that was the problem i went and bought a new subwoofer now thats installed still no sound.... The power to the amp is on as indicated to the red light powered on but still no sound all connections are good and double checked everything i have run out of things to look for plzz hlp

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Re: Powers on but no sound

Just purchased a brand new Kicker ZX650.4 amp. It was installed and was working fine for four days in a row suddenly no bass and no sound. check the amp wiring and fuse. every thing is in good working condition. So I turned on, off the stereo suddenly the amp has power again but then as soon as the bass drops the amp dies. but what was strange the second time. The amp power led light slowly dimmed then no power. what was also strange my cap was fully funcitonal so was the stereo. help

Posted on Apr 18, 2008

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Re: Powers on but no sound

Check the main amp fuse under the hood, even if it looks good just change it. Often times that light on the amp can come on just from the power amp tunon wire. Try a friends subwoofer box just to make sure the connectors on your box are good, and if that doesn't work then give me some more details....year/make/model of car, what kind of sub, what types of things do you see on the side of the there a green light as well as a red light?

Posted on Aug 19, 2007

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1 Answer

How many total watts

The power rating for this amp is as follows.
Two channel: Sub woofer: Min 35Watts
Two channel: Other than sub woofer : 70Watts
One channel: sub woofer; 100Watts
One channel: other than sub woofer: 200Watts.

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Hello rheabarb,

You did not say whether or not you checked the wiring going to your subs. Many times, a shorted or grounded speaker wire will cause an amp to fail. And if the amp powers up OK with the subs disconnected, I'd suspect one or more of the wires.

Hope this helps.

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I would double-check your RCA's on the amplifier. You should hear a thud if you unplug them. If not they are either not hooked up or defective.

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yes that is the cause sorry..i have done it before when i was younger a few times thats how i know..sorry man

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The amplifier likely has shorted output transistors. Going to a higher rated could easily have caused more significant damage.

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Cant figure out my car audio problems!!!!!

There are a couple of tests you can perform. I'd first recommend checking the shield ground. You'll need an ohm meter. The details can be found on the following page.

RCA shield ground test

You can also test the output with the multimeter. Set the multimeter to AC volts. If it's not an auto-ranging meter, set it to a voltage range of ~2v AC. Disconnect the RCA cables from the head unit. Touch one meter probe to the outer ring of the head unit's RCA jack. Touch the other probe to the metal contact in the center of the RCA jack. With the head unit near full volume and a clean signal source, you should read at least one volt on musical peaks. If you have a bass disc or a test tone disc (~60hz sine wave), use those.

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LED Light is on, but no sound from sub at all.. Have double backed on all wires but still nothing! HELP!!

if you change amps and it goes on protection the speakers are blown causing the amp to protect try changing speakers

Mar 24, 2008 | Car Amplifiers

1 Answer

Amp light is on but no power to my subs!

Hi There.

When you say the 40 Amp fuse blew. Was it your mains battery fuse or was it the fuse on the amplifier? If it was the fuse on the amplifier then you may have hurt the amplifier. The Kenwood KAC-8101D is a 1000 Watt monoblock amplifier. Therefore if you say that 1 of your woofers is not playing, then it is almost certainly blown if you are sure it is connected correctly. Try disconnecting it and only running the woofer that tries to play. If this woofer is still working correctly, you will notice a drastic drop if the sound of your bass. The reason for this is because you have changed the impedance load on your amplifier due to the fact that the other woofer is not working. Have your working woofer checked and replace the faulty woofer then you should be banging again.

Hope this helps!!

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1 Answer

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You may have your subs hooked up to it wrong. Either way the amp is definitely blown. Have a stereo shop check it out and examine your wiring.

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