Originally Posted by jon_nes
Thanks for the suggestion!
Security covers? Where are those? We ended up turning the knobs all the way up. Is there another volume control on the amp?
BTW, we bought both of them from Ebay. (from different guys)
Some of them (later models) have security covers (panels) over the sensitivity controls so that when left in permanent installation they cannot be tampered with. Or not easily anyways.
No, there should not be any other controls on there.
Karloff, I have an OLD early 90's Hafler prior to being purchased by Rockford that is a MOSFET deal, and it sounds really pretty decent. I have a Bryston 3b as well, and it ain't too night and day of a difference.
Actually, the bottom end on that little Hafler is really nice and solid and tight.
Is it a Krell, Cello, or Boulder? err...not by a long shot, but it's still nice. Certainly can mix through it without losing a heap of detail. If it was all I had it wouldn't stress me out.
Their amps and speakers were once good enough for this dude: Hafler - Home
OP: I have no idea what's going on with your rig at this point, but again, it is highly unlikely that both channels
on both amps are broken. Bizarre. Try feeding the Hafler with something else (anything, Ipod with 1/4" adapter etc) before you give up on them. If it works, find out what's wrong with your wiring.
It's got to be the wiring.