AVS Special Member
Join Date: Dec 2008
Location: Cham-Bana Illinois
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Not sure which Mitsu vehicle you have but we can give this a shot. I figure it's one of two things. well three things.
One woofer wired out of phase
Crossover settings on high pass instead of low pass
And this is low as I am unsure of vehicle and listening material
You are expecting to much from a 37.5 watt per channel X4, 150 max X2 bridged amplifier powering a couple of 10" subs in a small sealed box. AND those power ratings are at 14.4volts. I have 3 cars and none hit 14 volts from the alternator.
Use a 9 volt battery and verify at the amp the positive/negative speaker wires and verify the subs polarity. If one sub moves out and the other sub moves in VIOLA! I have seen subs labeled incorrectly. I have seen subs wired correctly inside the box but not outside.
"No one wants to fight the naked guy."