I was playing tunes while driving to work then all of a sudden it shut off. I checked the amp and the red light was on the right side of the amp. I unplugged it and the red light turned blue. Everything seems fine. My amp powers on, both blue lights are on, all fuses are fine but now sound is going to the sub.

SOURCE: No light on Alpine MRP-M1000

Ok. Have you check the Ground and the Power connection.

Posted on Jan 28, 2009

Larry Tezekjian

• 117 Answers

SOURCE: Kenwood KAC-8401 light goes from blue to red when turned on

Either the amp is ad or the sub got shorted? You can check itby disconnecting the Sub and seeing if the amp comes on blue then. If yes, then the sub is shorted. If no, then the amp is shorted. Also chck the voltage AT THE AMP. Make sure that it is above 12 Volts.

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

Posted on Jan 28, 2009

SOURCE: ALPINE PDX 1.1000

well you would have to look into the ohms of the amp compared to the ohms of the speaker. If the ohms are different you would have to hook them up in a different way. check the RMS on the speaker as well as the amp, this can also be sufficed by wiring it different if ohms match up properly! Hope this helps you out and if this is not the case let me know.

Posted on Feb 28, 2009

SOURCE: my audiobahn a1500hct amp blew all the fuses so i

in the owners manual it will usually say that that means you have an incomming power problem it states that you should check your ground and battery cable
hope i could helped!

Posted on Apr 06, 2009

SOURCE: red light on PDX 1.600 alpine amp... no sound

Hello zim69zim69zi,

Solid red indicates 4 possible conditions: 1) Short circuit, 2) Current too high, 3) Voltage too high, or 4) Overheated. The most common faults are the short and overheated.

If the fault is intermittent, the amp is probably overheating. If it is a constant fault, anytime the amp is powered up, then I'd recommend that you first check all of the wiring. If the wiring is OK, then you have a voltage or current problem. If it's voltage, the vehicle electrical system is probably causing it. You can check that with a meter. It should be from about 12VDC with the engine off, to about 15VDC with the engine running (alternator putting out). The amp should be able to operate OK up to about 16VDC but as components age, their values change. I'd look for a minimum of 10.8VDC and a maximum of 14.8VDC.

If the problem is overcurrent, the amp itself probably has a defective component causing it to draw too much current. It needs professional repair.

Hope this helps.

Posted on May 16, 2009