hi i have an Audio Research SP16 preamplifier and i am testing capacitors on the 1uf output.
Originally it brings Rel cap and I have tried Dynamicap and Mundorf evo silver gold and none of these sounds better than the Rel cap they could advise me who is worth it to improve
Originally it brings Rel cap and I have tried Dynamicap and Mundorf evo silver gold and none of these sounds better than the Rel cap they could advise me who is worth it to improve
There's a feedback loop around the coupling cap in the SP16 that will tend to mitigate the audible differences that you might otherwise hear from a coupling cap.
The SP-16 also has a PC board with no solder mask that is a bit more vulnerable to repeated soldering, so installing a bunch of different capacitors on the board may destroy the preamp eventually.
The SP-16 also has a PC board with no solder mask that is a bit more vulnerable to repeated soldering, so installing a bunch of different capacitors on the board may destroy the preamp eventually.
Nothing to improve because the original does it job fine.
IF a capacitor "sounds" then it is grossly defective.
Good capacitors (commercial ones made by the large manufacturers and sold at widely known suppliers) are good enough, because they are already acoustically transparent.
There is not "more transparent than transparent".
So, a competent design can negate the need for or usefulness of golden ears and unicorn-silk components? Who'd have thought...
😀😀😀
I would not consider a 12AX7 cathode follower at the output of a linestage preamp to be competent design.
Yes, 1mA of cathode follower current is a bit of a performance limiter, especially considering all the other double triodes out there better suited for the job.
Yes but the copupling with AR amp is easy due the high impedance.
Maybe is better to take a care with other stuff
In every case the CF with ecc83 in not a smart solution
Walter
Maybe is better to take a care with other stuff
In every case the CF with ecc83 in not a smart solution
Walter
Each half is good for 1.2w you could bump up the current. Finally got a HP 334A distortion analyzer. I’m going to start breadboarding some of these things and report findings.
Yes, and also due to it's rather low gm. A 12AT7, for instance, is far more up to task, but most probably needs some re-design.
Best regards!
Audio research capacitor
I have tried changing the 1uf capacitor in the output for dynamicap and Mundorf evo silver oil gold and it does not sound better than with the original rel cap it is not worth changing for higher priced ones
I have tried changing the 1uf capacitor in the output for dynamicap and Mundorf evo silver oil gold and it does not sound better than with the original rel cap it is not worth changing for higher priced ones
Thanks for stating this 
! Anyway, the bunch of audiophools with limited access to science claim quite the opposite as a quasi religious fact.
Best regards!
! Anyway, the bunch of audiophools with limited access to science claim quite the opposite as a quasi religious fact.Best regards!