I have a Legacy LA 290 amp, (400w), and I will be picking up a Mono amp, (1200-2000w), just wondering Guage of wireing I should use on my + from the battery. I will also be using a Distrubition Block because of the 2 amps.
Also, what guage should I ude for ground ? I was told use same Guage as +.

Lastly, how do people connect such large wires, 4g,etc, to their amps, while the slot that you screw the wire into is so small ? Is there some type of adaptor ?