Is it linear? How does it exactly work?
For example' date=' let's say you tune your subs to 30/50 on your HU. Your amp can do 300wrms at 30/50. Does this mean that at 15/50 you'd be doing 150wrms?[/quote']
no clue, way to find out would be to check rca output voltage at each volume notch
There's an easy way to figure it out using an SPL meter. You're supposed to get a doubling of power at every 3db rise in volume. Could just use a DMM and SPL meter to graph it out.