Audio Research Ref: CD8

hello Tonywinsc , let us make one thing clear , the big tube is NOT a rectifier tube and also the 6h30 tube in the powersupply . The are used as stabilisation . From 120V AC transformer current is rectified by solid rectifiers . So there will be no long wires under the board. Same as the upgrade of the CD7 .

Hello Tonywinsc , the electrolytic caps are needed to smooth the direct current after being alternate current to be changed by solid rectifiers .ARC always is famous by making very good powersections in their gear.Its the most important part of the design. You will notice there is no sign of humm in whatever gear of them.

Last friday my CD 7 was upgraded by ARC Holland ( Europe ),I brought it in and after 2 hours all was finished incl. testing .Total costs NONE , service .Today I replaced the 5881 tube by a NOS GE 6L6GC , which tube was recommended by my local ( not ARC ) dealer .The sound is as Wsill described . Only no burn in time.I already replaced all the 6H30 by DR types.I think everything is better than it was before the upgrade .
Greetings from Holland , a happy CD 7 owner ( even the REF 3 and PH 5 )

Hello forum members , which of you CD 8 owners can tell me what DAC is used in your machine , I like to know what is written on the DAC itself.Eq in my CD7 is written on it : CS 4396 KS . Hope anybody can help me
Regards Hans ( The Netherlands )