Anyone have the specs for the USA-150 with the long fins on the side? Also Id like to know which input to use when I bridge the amp.

I replaced a PG xs2500. I had been running the 2500 with a dcon10d4 at 8 ohms so like 250 watts and I switched over to the 150 and ran the amp at 2ohms. The xs2500 kicks the crap out of the sub. It seems like i have to run the 150 almost to clipping to get it to push a 300 watt rms sub.

Ampguts

Thanks for the ampguts link,.....

There are at least 2 different amps on that page though. Im still looking for which input or both to use when bridging and the manual ( not the one thats widely available for a different amp than the ones on the ampguts page )

Irmc the older USAmps would use the right input when bridging to mono. I have an older USAmps manual and I can verify for sure and post it here for you.

I thought I remember reading somewhere that they should both be hooked up

Here are some white papers pdf files that may help:

http://www.usamps.com/technical/pdf/owners_manual%5B2001%5D.pdf

http://www.usamps.com/technical/pdf/wp150_99.pdf

Edited July 30, 201114 yr by The Natural

This installation manual reads

"It is necessary to provide input

to both channels when operating

the amplifier."

Just to be sure, I used both inputs when operating the two I have in bridged mode and they worked fine.

http://www.usamps.com/technical/pdf/owners_manual%5B1999%5D.pdf

Edited July 30, 201114 yr by The Natural