Amp 'cutting out'.

[beast98]

2001 Ford ZX2. I'm running a Pioneer Premier DEH-P860MP head unit with a CD-IB100II IPod adapter, two Alpine V12 amps - A four channel for my front and rear speakers and a bridged two channel for my sub. My front speakers are 6.5 in. 2 way Eclipse Point Source and rears are 5x7 in. 2 way Eclipse Point Source with a boxed Eclipse 10" sub in the trunk. Entire car is dynamatted on inner and outer panels.

Problem: Anytime I go over medium-high volume, the main amp cuts off for 3 - 5 seconds and continues to do so until I turn the volume down. The sub amp continues to function. The obvious answer of a malfunctioning main amp was disproven when I replaced the amp and the same problem occured. I'm baffled as to what else it could be. The power and ground cables are 4/8 ga. with inline fuses and distribution blocks.

Any ideas?

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[CRXBMPN 5,000+ posts]

bad ground for the amp?

 

[CRXBMPN 5,000+ posts]

bad speaker or wires touching is another problem that sometimes only presents itself at upper volumes, odd as it sounds.

 

[XanderMoser 10+ year member]

Yeah, check all of the wire connections at the speakers. Large cone movement can push enough air and vibrate enough to wiggle wires, possible causing a short. This would shut the amp off for a couple seconds to protect itself. How much power is the amp rated to make? Where are the gains set at?

 

[beast98]

The gains are set at midpoint and the amp is 50 WPC.