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Part Number Question On Tantrum 1200.1
Posted: Mon Sep 22, 2008 1:32 pm
by dako
Hey Guys - I just got my 1200.1 back from PG today and there was a part number they replaced that I'm not familiar with. It's part U102. Just wondering if anyone out there might have an idea what that is, just so I can keep track of what's been replaced on the amp. Thanks!
Posted: Tue Sep 23, 2008 6:11 am
by dako
Did some digging around online last night and couldn't come up with anything. Does U102 refer to a position on the circuit board maybe? I know...I've got way too much free time on my hands. Would be nice to know what exactly was repaired. I know when I called PG, they were saying how "U102 was replaced, part cost was $53.00, etc..."
Posted: Tue Sep 23, 2008 6:52 am
by stipud
I think U102 is the Tripath chip. It would be the name of the location on the circuit board.
Posted: Tue Sep 23, 2008 7:20 am
by dako
Ahhh! Thank you. I was hoping that's what they were referring to.
Posted: Tue Sep 23, 2008 7:32 am
by rolandk
U102 is indeed the Tripath chip, they must have found a secret stash!
Posted: Tue Sep 23, 2008 9:19 am
by dako
And for that, I'm seriously grateful. I was thinking after sending it in and getting a general consensus here of what might've been wrong with it, I'd have a really stylish looking doorstop on my hands.
Posted: Wed Sep 24, 2008 5:46 pm
by Me-262
Hey dude, did you still need my 1200.1 ? You haven't checked your PM's in forever
Posted: Thu Sep 25, 2008 1:33 am
by Delftenaar
Does anybody know if this 1200.1 produces the same power at 2 Ohm as 4 Ohm
Considering it is only rated at 4
Posted: Thu Sep 25, 2008 5:45 am
by stipud
Yes, it will produce the same wattage at 2 ohms BUT it will draw more current, and get much hotter, and it won't sound as good.
Posted: Thu Sep 25, 2008 6:28 am
by Delftenaar
By 'it doesn't sound as good' I guess you mean the damping
Posted: Thu Sep 25, 2008 7:15 am
by stipud
Lower damping is a small part of the issue. Since you are running the amp below its rated impedance, you will be stressing it. I would expect to see much lower THD as well (not that that really matters on a subwoofer). Having a fan cool it may be a good idea.