Which 6SN7's for Rogue 99 Pre

My Magnum came with Electro Harmonix tubes. Think it was 3-4 years old when I bought it. (store demo) Guess they switched. The EHs aren't that bad for new stock. Not as quiet (or detailed) as the Sylvania NOS in there now, but not bad. I know from speaking with Mark O'Brian at Rogue that he was never really happy with the EHs. Top notch company to buy from. Mark can put up with my constant questions! New NOS for the phono stage coming! Diana Krall is singing in my living room. Awesome.

The switch was probably because the supply of new Philips tubes dried up. They were military tubes from the 1980's.

Blue Circle was using them also in the BC21 preamp and BC2 mono blocks.

I got Electro Harmonix with my Rogue99 Magnum. I used them side by side with some Sylvania chrome domes Mark obrian sold me and they sounded fine. I'm running Crome domes side by side now and its great. Thinking about trying some Ken Rads or Raytheon VT-231's next. Anyone wanna comment on that?

I tried the Electro Harmonix ( bought from Upscale) in my 99 Magnum and they were micro phonic as hell. Nothing I tried would quiet them down. I bought new ones from Mark o Brien and they are fine. I honestly dont remember what brand they are though...

Pretty hard to beat either your Sylvania VT231's or the Kenrad's mentioned by sugarbrie. If you feel like experimenting a bit, you might want to try some 5692 tubes, which are in the 6SN7 family tree. I have used them with very good results, I personally believe that they produce a more cohesive overall musical experience than the VT231.