Anyone Rolling Tubes In The BHK 250/300’s?

[drarifakhtar]

In case you haven’t seen there are a few threads here:

BHK Preamp tube rolling

After a bit of a search, I haven’t found much about tube rolling experience with the Preamp. It would be interesting to hear what changes have been noticed switching out of the stock tubes to, say, the Tungsram.

BHK Signature 250 or 300 Tube Rolling

I understand PS Audio’s tube selection is limited to new tubes. I, however, just purchased three different sets of quads: (1) Siemens ECC88 (6DJ8); (2) Amperex 6922 (Holland) and (3) Amperex ECC88 Bugle Boys with the Halo Getter. Does anyone have experience with these tubes? How long do you have to burn in a tube before listening to them to determine which ones sound better? Any other thoughts on tube rolling? Mark

BHK amp or preamp tube rollers

I just picked up a BHK 300 pair. So I waned to hear from others who rolled the tubes. What did you settle on?

Personally I like the actual tubes that come with the amp like yourself. I have some Mullards and some others that I ordered (will post the type when I can find it) that are NOS. To be honest I didn’t really think they were better than the stock tubes - maybe they need running in more to differentiate. Anyway I don’t want to waste the ones that I have so will wait until they stop performing well before I properly use the NOS tubes.