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In Reply to: RE: Hafler 9500 crackling in one channel posted by Cuernavaca on June 17, 2016 at 17:00:05:
They are a great amp when they work but the TransNova series which is a Rockford, is a real BITCH when it comes to tracking down noise issues..I had a hell of a time desoldering the parts in the unit and even the factory service doesn't have the answers on fixing these because this one was at the factory and sent it back to the guy.
I got lucky and the way I fixed it was with a hair dryer and a can of freeze spray..I heated up the right channel components on the driver board and once the noise reappeared,I sprayed each individual component until the noise went away..It turned out to be the inner stage drivers before the actual drivers and I replaced the pair and then for added insurance, I ended up making a heatsink out of a pair of alligator clips.I ran the unit for a day and half without shutting it off and the noise didn't return but I have no idea if it is still going because this was 5 years ago..The guy was local to me. This was the earlier series but it was a nightmare.
"For every complex problem there is an answer that is clear, simple, and wrong" H. L. Mencken
Edits: 06/18/16
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Follow Ups
- I feel for you on this amp. - Michael Samra 07:14:51 06/18/16 (7)
- RE: I feel for you on this amp. - airtime 07:26:13 06/18/16 (6)
- RE: I feel for you on this amp. - Michael Samra 14:48:08 06/18/16 (0)
- RE: I feel for you on this amp. - Cuernavaca 09:16:04 06/18/16 (4)
- I hope you found it but that's the way this amp worked. - Michael Samra 14:46:36 06/18/16 (2)
- RE: I hope you found it but that's the way this amp worked. - airtime 14:56:25 06/18/16 (1)
- RE: I hope you found it but that's the way this amp worked. - Michael Samra 01:10:25 06/19/16 (0)
- Great news - airtime 09:23:27 06/18/16 (0)