Kicker L7 10" 2 ohms 600 wattsAlpine M650 2 ohms 600 wattsJVC KDG230 head unit4 gauge wires, 60 amp fuseI've had my install done at Best Buy, broke my sub in, and everythingwas fine for several months. Recently my bass has been getting weakerand I'd have to turn up my gain or bass controls on the amp and/orheadunit to achieve the same amount of bass as i've had before.I went to Best Buy to get it checked out and everything seemed fine forsome reason. They couldn't find the problem. They used a voltmeter onthe car battery, amp, and subwoofer (making sure it was 2 ohms so therewas no blown voice coil) and everything was fine. They could offer nosolution and said that it was weird that i'd have to turn up everythingto achieve the same amount of bass.I took out the subwoofer today (I'm not an expert) and everythingseemed okay, nothing unusual. My bass is still weaker than it wasbefore. Do you think I'd need a new amp or is there any possibleexplanations for this problem? Thanks a lot in advance.
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