Please Help! Did I Blow My Amp?!?!?!?!

[CrEaMXxPuFf 10+ year member]

i'm running an older 2200e audiobahn amp that pushes 560x1 at 2ohms to my Alpine Type R 12" DVC sub. Everything has been working fine. I'm running an 8 gauge power cable with two 30amp fuses (not tubes but the ones that you can find in your fuse box)in parallel. I needed to extend my power cable about 4 ft, so i bought 4 ft of 8 gauge power cable, and use an old inline fuse (30 amps -- the tube style fuse) and use that to connect the two pieces of power cable together. Well, the other day the fuse blew. I went to radioshack and bought a new fuse. 30amps/32volts. Since the day i blew the fuse, it seems as though my amp can still draw the 560watts, but it doesn't deliever the power to my sub. The amp has a small led light, and usually, at high volumes, the light dims dramatically (volumes such as 25 on my alpine 7893 HU, 35 max). Now, at volumes such as 10, the light is already dimming just as much, yet the sub is perfectly fine. I doubt i blew the sub because the sub handles up to 1000 but is rated at 300rms i believe. What do you think happened? I've always hated this amp but its just i got a good deal on it. I'm looking at getting an Alpine V12 Mono 900watt amp and picking up another Type R 12 if the audiobahn amp is screwed.

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[Phatillusion 5,000+ posts]

I would say if you made adjustments to the wire, it worked fine before the change, and after the change it isn't working properly, then that is most likely what caused it.

 

[chris229 10+ year member]

tell me do you have 2 x 30A on the amp but a single 30A on the inline? For the dimming get a voltage meter and check the voltage at the amp. Also post the amps current draw I can tell you if the power wire is causing too much loss.

 

[CrEaMXxPuFf 10+ year member]

there are two 30Amp fuses on the amp, 2 30 amp fuses that run in parallel, and then a 30amp inline fuse that is in the back of the car near the amp. I'm running 8 gauge power. I think what happened was something shorted and the amp died. I'm lookin for a new amp right now. Currently looking at the new Alpine MRD-500

 

[chris229 10+ year member]

first 60A on a 8 gauge is going to cause TOO much loss in the wire. Why would you put 30A fuse in front of and amp that pulls 60A and think the amp has a problem when it blows the fuse??? Just sound to me you have too much voltage drop in the line. Use a multi meter on the power terminal and turn up the amp to full power. Measure and record the voltage seen at the amp at full power. Then post the numbers here