so since my truck was getting worked on i asked a guy in my class to give me a ride to pick it up after class got out. I get in his car and he turns on his system and up to 5 volume it was bumping pretty loud so i asked him what he had i was impressed...... "2 12in duals and an alpine amp in a bandpass box" so at this point im just totally thrown off we get to the shop and i look at his amp his gain is turned all the way up his bass boost all the way up. i asked him who installed it he said a friend about a year ago. I told him its a mystery to my why the amp and/or the subs have not blown yet with the gain and BB at these levels and that he should turn them back. "ehh it hasnt blown yet it will be ok"........
i gotta call Bs, i started with same bandpass setup. i never crankeed those knobs to max and smoked 2 of those bandpass boxes. i only then used the warrenty and moved on. i kept the 460 watt dual amp, i ran on it about 4 years ago and it's still kicking. but those subs on a alpine , no way , somethings not right with the amp or HU for those things not to be cooking. funny story i got a mrp 850 and it read so low of voltage i couldn't tune it with a DMM, yet if i ran the subs i got a decent thump out of it. i returned it and all is well but i wonder if he has a bad amp.
if i remember correctly i think the box is only stuck at 4 or 8 ohm. it was a odd number, so it's not possible to wire it any diff. the box is sealed and pre wired when you get it. there's just 2 push terminals on the back.
