just to put an end to the question "was alphasonic any good?"
yes!!! i took home multiple iasca trophies in tha so cal area in 1995 with 4 10" kickers and one alphasonic pma-2150 running the subs, and a pma-4050 running kickers seperates, maxed out at 129 db in an iasca max spl competition, and looking at the specs
thd was 0.05% with a 30 amp fuse amps(30) X volts(12-14)= watts 360-420@4ohm and stable down to 1ohm x 2 ch. and bridged 2ohm
compared to the RF punch p500x2
thd was 1.0% the rest are the same in output, voltafe,and amperage.
cost comparison:
alphasonic $179.00
punch $299.00 for the same specs and a higher distortion rate than the alphasonic
i cant find a db comparison on either amps, it is 25 years old data im looking for.. but the punch amps actually caught fire in my car, and the alphasonic melted the plexiglass mounts i had them on, i could have cooked eggs on them but they kept on setting off all the car alarms around my car for the rest of the day.
ive had orion, lanzar, rockford, kicker and alphasonic.. and none could hold a flame to that 300 watt alphasonic amp