sr20dem0n said:So your amp is set to a .5V gain setting, your headunit has 4V preouts, and when playing a solid tone it's not drawing its rated current from the electrical system? Have you tried using a multimeter on the amp's outputs to see what kind of voltage it's spitting out? Are you sure that the tone you used was a 0dB tone and not say, a -12dB tone?
ChevS-10 said:You won't be able to get readings at the outputs using multimeters, they won't autorange fast enough.
One question, what kind of sub are you powering with this amplifier? You might also be severely underpowering your sub depending on what you have.
But you'll need a +/-16 to 17v power supply. This can be tough to get especially in a car. You almost need a transformer and a couple of half wave rectifiers set up right. Obviously quite a few barriers. Another thing you can do is just a basic amplifier circuit.
I have a strong feeling you're already at or beyond your amp's limits as it is
simply learn to settle with less bass
michal said:This amp is supposed to have protection of some sort, it's not kicking in yet. On the other hand, it's supposed to have gain adjustment too....
michal said:Question: can one hear when amp is clipping?