Question about Car Audio & Video
Could be a thermal protection circuit. If your subs are 4 ohm speakers and they are in parallel, then your amp is seeing 1 ohm, which probably puts out a lot of power but the impedance may be so low that your amp is overheating. Usually, after a thermal protection, it will come back on after it cools down, but that can take a while, especially depending on ventilation.
Keep in mind that when you bridge an amp, it's "seeing" half the impedance. Two 4-ohm speakers in parallel give a 2-ohm load, so an amp bridged to a 2-ohm load is seeing 1 ohm. Dangerously low for most amps unless it's designed for it.
Posted on Nov 08, 2010
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Posted on Jan 02, 2017
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