Howdee,
I have a Cayin TA-30 integrated tube amp,got it from Bizzy Bee Tube Audio design,with all the mods,auricaps,focus control,Fro-Zen 12AX7's in the pre-amp section. First sounded on the harsh side,giving me a low level headache on my Forte 1's. Spoke with Craig w/NOS Tubes,very helpful and very kind by the way. Per his advice changed the feedback caps from the stock #22PF silver micas to a larger cap to #68 PF silver mica,did smooth out the highs some,but still a tad on the harsh side. I was told the auricaps take a while to burn in. I have about 15-20 hours so far on the amp. Oh yea I'm using it with a Sansui TU-9900 tuner APS modified by Ed Hanlon and a APS-9b antenna rooftop antenna. I mainly listen to the radio and cd's with the Cayin,both CD and radio are a tad on the harsh side.I've read the past posts on break in,psychoaudio blah blah and rolling tubes.
So I would like to hear from the folks who have the Cayin TA-30 and what exactly they have done to smooth out the sharpness,harshness on heritage speakers. So I can try a next step,or maybe the auricaps will burn in and my brainwill get used to the harshness,but I'm running low on Ibuprofin (Sp?)
Cheers and many thanks in advance.
Robert