Klipschtastic Posted July 20, 2022 Share Posted July 20, 2022 I have a Denon DRA 300 and a 400 circa 1981. They are the silver faced ones and are very clean and scratch free. Over the past few years I managed to damage a channel in each one to where it’s staticky sounding. I believe it’s from running cat 5 cable as speaker wire for whole house audio. Dumb I know. I live in WV and there are no repair shops nearby. I need to either toss them or get them fixed. I know shipping to a repair shop isn’t cost effective. I’m leaning towards trashing them but I really like them and hate to do it. Any advice? 1 Quote Link to comment Share on other sites More sharing options...
Edgar Posted July 20, 2022 Share Posted July 20, 2022 Unlikely that Cat5 cable will damage the receivers. Is the static present at all times, or only when you move controls? If only when you move controls, then the fix may be as simple as a can of contact cleaner. Quote Link to comment Share on other sites More sharing options...
billybob Posted July 20, 2022 Share Posted July 20, 2022 Yes, deoxidize them and see if the static goes away. Quote Link to comment Share on other sites More sharing options...
billybob Posted July 20, 2022 Share Posted July 20, 2022 @Klipschtastic Quote Link to comment Share on other sites More sharing options...
Klipschtastic Posted July 20, 2022 Author Share Posted July 20, 2022 No the static is not related to any knobs. It is a prominent static sound with barely audible music in the background. Quote Link to comment Share on other sites More sharing options...
Edgar Posted July 20, 2022 Share Posted July 20, 2022 2 minutes ago, Klipschtastic said: No the static is not related to any knobs. It is a prominent static sound with barely audible music in the background. In that case, it seems that repairs are in order. Maybe sell them for parts on Craigslist and, after 41 years, treat yourself to some new electronics. Quote Link to comment Share on other sites More sharing options...
Klipschtastic Posted July 20, 2022 Author Share Posted July 20, 2022 I’ll just throw them away in that case. I do have a Marantz PM7000n Plus a Yamaha receiver that I use for whole house audio. And another Marantz AVR downstairs. I just like the retro look of the Denon but I believe you all are confirming what I was thinking. Not worth repairing. Not as desirable as older Marantz or Pioneer stuff from the 70s. 1 Quote Link to comment Share on other sites More sharing options...
DirtyErnie Posted July 20, 2022 Share Posted July 20, 2022 You want my address? 😛 Quote Link to comment Share on other sites More sharing options...
KT88 Posted July 20, 2022 Share Posted July 20, 2022 TBH for someone with little basic knowledge it shouldn't be too hard to make the repair. The first thing I would do is check the fuses, you can do that too.The second thing I think is that the symptoms fit a broken little electrolyte cap that doesn't want to anymore. Most of the time they scratch. I had the same phenomenon with an old Revox A77 tape recorder when the meter hands trembled due to static crackles. Quote Link to comment Share on other sites More sharing options...
JohnA Posted July 21, 2022 Share Posted July 21, 2022 I've been using braided CAT5E for speaker cable for 22 years(!). Must be wore out by now, what with knocking electrons out of their orbits for that many years! 😁 I am currently listening to a Technics SA-300 from '79 that I had recapped. That's probably all yours needs. The SA-200 I bought in college is in the garage driving a pair of Auratone 5CTVs. Quote Link to comment Share on other sites More sharing options...
Deang Posted July 21, 2022 Share Posted July 21, 2022 You really should do the CAT6A upgrade to increase your bandwidth. 1 Quote Link to comment Share on other sites More sharing options...
the real Duke Spinner Posted July 22, 2022 Share Posted July 22, 2022 I use #12 AWG building wire its all that one needs to move electrons ..just saying....it works every day in commercial buildings Quote Link to comment Share on other sites More sharing options...
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