Jolida jd-502p

Hey Jedi - glad the site was helpful. I think you will also be pleasantly surprised how fast they deliver if you do order from them.

Wilson,
I also have a Jolida 502 (but the CRC integrated version). I have bass heavy speakers, so I'm set up to (I think) do the opposite of what you are trying to do, but for the record: Soviet tubes from Jim McShane for power amp [I highly recommend these economical tubes -- even though I can never remember their actual name], either JAN Sylvania 12AT7WB to tighten up the base or Ei Elite Gold 12AT7 if I want more top end sparkle, & I switch between RCA long black plates and Amperex Bugle Boy 12AX7 for the rich midrange. Good luck.

Batch

Please don't lure me into the lurid world of Old Tubes. It just seems like an network of crazed and sweaty audio geeks yanking dusty old tubes from abandoned 1950s radios to put on questionable testers while trying not to knock the painted logos off. Give me a New Sensor shiny glass product instead!

Although Philips "Mini Watts" are on my short list of things to try someday...is that so wrong?

Wolf, I agree on trying small signal 8-pin and rectifier tubes of a vintage era. As far as power tubes there are top quality examples being manufactured and they are NEW with guarantees. Now tube rolling in instrument amplifiers...