I placed a similar thread recently about rolling the tubes on my 17ls. It came with the Electro Harmonix, so I can'nt speak about the Sovteks, but the general conclusion was not to waste your money. Any changes would be small and not commenserate with the cost. I resisted the temptation and modded my Shanling CD player, now that was money well spent.
Tubes for Conrad Johnson 17 ls
I have loved this preamp for about 2 years with the stock sovtechs. CJ insist that the preamp sounds superior with these. However, I wonder if you can get more dynamic and tube bloom from another type of tube. I use a MCormack dna 2 deluxe and proac 2.5 speakers. I use a CAlifornia audio Icon power boss cd player and speakers wires are bi-wired audioquest sterings with interconnects being AQlapis and MagnanVI. Don't mind keeping the system the way it is(since I re-discover how amazing musicians can be when i listen to it), but just curious to see if antone has experimented with other tubes. Thanks, Fred
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