Just picked up an American Bass XD-2000 Amplifier.
I have a few questions, because I bought it slightly used, without the product manual.
1. Does the amp use (4) 40A fuses? In it currently are (3) 40A, and (1) 20A. I want to replace all them, and thought I saw previously that is uses (4) 40A's.

2. It has (2) negative and (2) positive speaker output terminals. I need to run a Mono channel, at 1ohm. If I understand the directions on the amp, it says to use both positives and both negatives then connect each as 1 wire. Correct?

3. Lastly, the Q-Bass knob (0.5 - 2.0). Someone explain what this setting does?

Thanks!