I recently read a thread where people were having issues with their ARC amps, and it was mentioned that some preamps do not play well with ARC amps and could cause problems with them. I have no idea about the details of this or if it's correct, but I'd at least look into this and see if your preamp is a good match if you ultimately decide on an ARC amp. I'm sure others know a lot more about this, but just wanted to bring it up just in case it's a legitimate issue. Best of luck.
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Good point by Soix.
Here is the thread that he appears to be referring to. Apparently the manuals for some ARC amps indicate that if non-ARC preamps are used with them damage may occur. The link opens at a post in which I speculated about possible explanations.
Whatever the reason may be for their statement, my suspicion is that it would be unlikely to be an issue with most non-ARC preamps, but I suppose it conceivably could be an issue with some.
I haven't heard the VAC amps in my system, but I own the
REF 75. Don't judge the REF 75 until you change out the
tubes for KT 150's - available from Upscale Audio. While
the REF 75 is amazing with the stock KT 120's, it is in a
different league with the KT 150's. If you go with the KT
150's, you'll have to leave the top cover off of the amp
because the new tubes are a bit too high. Sounds better
with the cover off anyway, so ... so what?
My current system:
ARC REF-3 pre amp
ARC REF-75 amp
ARC PH-8 phono
Well Tempered TT. Original issue and highly modified.
AT-0C9 MK III cartridge.
Speakers: Legacy Signature IIIs biwired with Cardas
Oregonpapa ... what is the ARC CD-7se? Are you referring to the CD-7 with the upgraded power supply: (1) 5881 tube and (1) 6H30 tube??
Glad to read that the KT-150s are working out. Still scratching my head about why ARC continues to hold back officially blessing the KT-150 for use in its current amp lineup.
Yeeesss .... I've read the hearsay reports that so and so at ARC said the KT-150 are ok. I want to see it come in writing from ARC. They've had that tube in life testing for two or three lifetimes already. I doubt this type of conduct would have happened under Mr. Johnson's watch.
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