Does it have to be 2020? I have a set of the 12Au7s that came with my PS Audio BHK Signature preamp that I bought at the end of last year. I think they sound great, better than the highly rated Radiotechniques that I just got. In this circuit, which can also run 6 volt tubes, I think they beat both the Tungsram 7DJ8s and a very expensive pair of Amperex 7308s. The Psvanes have a holographic quality that I just haven’t heard in the others. They’re clear and smooth, especially in the critical midrange, in which the others were slightly harsh.
PSVANE 12Au7 12At7 12Ax7 "-T MKII" 2020 production run of small signal/driver tubes
Re-testing year 2020 production run of these tubes. Would like to hear from others who’ve re-tried recent production?
>>PSVANE 12Au7 12At7 12Ax7 "-T MKII" small signal/driver tubes made in year 2020"
Background:
After following stories about TJ Full Music’s founder passing, and the son reselling tooling of all of the small signal tubes to PSVANE, and recent luck over the past year with TJ 6SN7 tubes for my preamp, I thought I’d give the new PSVANE small tubes a retry. Checking to see if any designs or manufacturing goodness made it over to PSVANE yet from TJ. Also, took advantage of an opportunity to buy these direct from a major overseas distributor, direct. So far so good. Comparing to other known vintage tubes. Also following AudioNote’s recent use of PSVANE tubes in their preamplifiers, amplifiers, integrated amplifiers.
GOAL:
Find something "close enough" and hoard away all my vintage tubes. An improvement is always great too.
COMPARISONS to vintage, others:
-Currently comparing to my vintage stash of 1960s Mullard "Blackburn", Tungsram, RCA, Sylvania, others.
-Also comparing to prior 2012 versions of these same PSVANE tubes made over eight years ago.
-No need to compare to new re-issue Mullard or JJ or other. Seems these new PSVANE are on a different level.
INITIAL Impression first 20 hours:
-a tad harsh and grainy
-midrange is obvious
-top end not rolled off
-sound stage front row, initially
-decent, interesting
AFTER 72 hours burn-in:
-smoothing out nicely, not there yet, close
-sound stage dropping back to mid-hall
-texture starting to come in
-nice midrange, top end smoothing out more
-tone of piano and guitars shaping up nicely
-Nice, haven’t pulled them yet!
APPLICATION
My mono tube amplifiers
(2) Input tubes; 12AU7s
(2) driver tubes; 12AT7s
Friend testing in his preamp
(2) Input, preamp: 12AX7s
------------------------------
REQUEST:
Would like to hear from others who’ve re-tried recent 2020 production of PSVANE 12AU7 or 12AT7 or 12AX7 ?
What are you hearing, are they better than prior PSVANE versions you tried years ago? Similar findings or ???
>>PSVANE 12Au7 12At7 12Ax7 "-T MKII" small signal/driver tubes made in year 2020"
Background:
After following stories about TJ Full Music’s founder passing, and the son reselling tooling of all of the small signal tubes to PSVANE, and recent luck over the past year with TJ 6SN7 tubes for my preamp, I thought I’d give the new PSVANE small tubes a retry. Checking to see if any designs or manufacturing goodness made it over to PSVANE yet from TJ. Also, took advantage of an opportunity to buy these direct from a major overseas distributor, direct. So far so good. Comparing to other known vintage tubes. Also following AudioNote’s recent use of PSVANE tubes in their preamplifiers, amplifiers, integrated amplifiers.
GOAL:
Find something "close enough" and hoard away all my vintage tubes. An improvement is always great too.
COMPARISONS to vintage, others:
-Currently comparing to my vintage stash of 1960s Mullard "Blackburn", Tungsram, RCA, Sylvania, others.
-Also comparing to prior 2012 versions of these same PSVANE tubes made over eight years ago.
-No need to compare to new re-issue Mullard or JJ or other. Seems these new PSVANE are on a different level.
INITIAL Impression first 20 hours:
-a tad harsh and grainy
-midrange is obvious
-top end not rolled off
-sound stage front row, initially
-decent, interesting
AFTER 72 hours burn-in:
-smoothing out nicely, not there yet, close
-sound stage dropping back to mid-hall
-texture starting to come in
-nice midrange, top end smoothing out more
-tone of piano and guitars shaping up nicely
-Nice, haven’t pulled them yet!
APPLICATION
My mono tube amplifiers
(2) Input tubes; 12AU7s
(2) driver tubes; 12AT7s
Friend testing in his preamp
(2) Input, preamp: 12AX7s
------------------------------
REQUEST:
Would like to hear from others who’ve re-tried recent 2020 production of PSVANE 12AU7 or 12AT7 or 12AX7 ?
What are you hearing, are they better than prior PSVANE versions you tried years ago? Similar findings or ???