Bonzo Posted January 26, 2019 Share Posted January 26, 2019 Picked up a restored McIntosh C28 from a local tech today. He does excellent work and doesn't charge an arm and a leg. This was a one owner piece and has the slant leg cabinet that is in very nice condition. The glass and lettering are virtually flawless. I was hunting for a tube pre-amp but couldn't pass on this classic. So far, I am very impressed with the Mac/VRD combo. This one just might be a keeper? 6 Quote Link to comment Share on other sites More sharing options...
totalcomfort Posted January 26, 2019 Share Posted January 26, 2019 Congrats!! Very nice. Quote Link to comment Share on other sites More sharing options...
soundbound Posted January 26, 2019 Share Posted January 26, 2019 Very nice! Congratulations! Quote Link to comment Share on other sites More sharing options...
Bonzo Posted January 26, 2019 Author Share Posted January 26, 2019 Here’s a better picture of the C28. Quote Link to comment Share on other sites More sharing options...
Schu Posted January 26, 2019 Share Posted January 26, 2019 In case you were scared to crack her open... good for the records. Quote Link to comment Share on other sites More sharing options...
Bonzo Posted January 26, 2019 Author Share Posted January 26, 2019 Hey Schu, I wasn’t scared, just didn’t feel a need to do so as yet. I do appreciate the pics, thank you. Craig does excellent work! Can you tell me the actual finish of the base? I assume it’s figured walnut but not sure. Quote Link to comment Share on other sites More sharing options...
Schu Posted January 26, 2019 Share Posted January 26, 2019 Yes sir... solid walnut. I'd love to have them back someday. They are definetely keepers. Quote Link to comment Share on other sites More sharing options...
ODS123 Posted January 26, 2019 Share Posted January 26, 2019 Tone controls AND a mono switch?! ..Love it! Very cool. 1 Quote Link to comment Share on other sites More sharing options...
Bonzo Posted January 28, 2019 Author Share Posted January 28, 2019 Unfortunately, there is an issue. There was a slight hum/buzzing coming from both speakers. It really manifested itself when Imswapped the 6L6GC power tubes with KT-88’s. Everything I tried did not cure the problem. I ended up taking back to the seller/tech and we decided the combination may not be compatible. He graciously refunded the money. The search continues.......... 1 1 Quote Link to comment Share on other sites More sharing options...
Schu Posted January 28, 2019 Share Posted January 28, 2019 I'd be VERY tempted to try a passive ladder design attenuator if I were you. What are you driving? Quote Link to comment Share on other sites More sharing options...
Bonzo Posted January 28, 2019 Author Share Posted January 28, 2019 Currently JBL 4312a Control Monitors. Waiting for my new Heresy III's to arrive. 1 Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted January 28, 2019 Share Posted January 28, 2019 1 hour ago, Bonzo said: Unfortunately, there is an issue. There was a slight hum/buzzing coming from both speakers. It really manifested itself when Imswapped the 6L6GC power tubes with KT-88’s. Everything I tried did not cure the problem. I ended up taking back to the seller/tech and we decided the combination may not be compatible. He graciously refunded the money. The search continues.......... I have to ask....did you have a preamp on the VRDs prior to putting the Mc in the chain? And if so, did you not have the same issue when changing tubes? Quote Link to comment Share on other sites More sharing options...
NOSValves Posted January 28, 2019 Share Posted January 28, 2019 No reason a properly working McIntosh preamplifier would have mating issues with the VRD's. Quote Link to comment Share on other sites More sharing options...
jimjimbo Posted January 29, 2019 Share Posted January 29, 2019 24 minutes ago, NOSValves said: No reason a properly working McIntosh preamplifier would have mating issues with the VRD's. I agree, and that's why I asked the question. Quote Link to comment Share on other sites More sharing options...
Bonzo Posted January 29, 2019 Author Share Posted January 29, 2019 I have a Yamaha C-80 preamp that is dead quiet at idle with the VRD’s. There was just something between the two, ok three, that wasn’t working together. I was actually in the market for a tube pre-amp. This came up for a great price so I gave it a try. It didn’t work out so no harm done. I will keep looking. Thanks guys....... Quote Link to comment Share on other sites More sharing options...
Panelhead Posted January 29, 2019 Share Posted January 29, 2019 Too bad it did not work out. Suspect there was a hum that was grounding related. Flipping polarity on 2 prong plugs, using a cheater on 3 pin, running a grounding wire also. I developed hum one time that putting a cheater on the computer monitor eliminated. Hum is tricky. Quote Link to comment Share on other sites More sharing options...
Bonzo Posted January 29, 2019 Author Share Posted January 29, 2019 I tried all that I could think of to track it down but was unsuccessful. Quote Link to comment Share on other sites More sharing options...
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