Nik
Headphoneus Supremus
Hi Hirsch,
nice to speak with you directely....
I have two pairs of Sylvania brown base, the 4 mached and two pairs of RCA red base 5691.... all the tubes never used, just tested in my HP-4. I agree with you the HP-4 can be upgraded a little, but is always the same amp after all... I try to convince my friends that really the R-10 needs a very special partner. I hope one day you can to listen the "R-10 System". Now I'm upgrading even the R-10H with the Western Electric 437A tubes (rare and expensive- 250$ a pair) and still waiting for the ALPS RK50, I'll tell you about the new test...
Best regards
Nicola
nice to speak with you directely....
I have two pairs of Sylvania brown base, the 4 mached and two pairs of RCA red base 5691.... all the tubes never used, just tested in my HP-4. I agree with you the HP-4 can be upgraded a little, but is always the same amp after all... I try to convince my friends that really the R-10 needs a very special partner. I hope one day you can to listen the "R-10 System". Now I'm upgrading even the R-10H with the Western Electric 437A tubes (rare and expensive- 250$ a pair) and still waiting for the ALPS RK50, I'll tell you about the new test...
Best regards
Nicola