wow didn't realize, the preamp is now 7 months old.
finally, this pre-amp now sounds as clean and musical as i wanted it to be, after a few changes:
- power supply was replaced with the tubed one (vs ss) using a nos mullard rectifier (replacing a stock russian),
- the coupling caps upgraded to mundorf gold/silver/oil (stock was a mundorf too, non oil)
- black gate electrolytics replacing stock
- stock mullard reissues 6sn7s were replaced by nos sylvania vt231
- stock stepped attenuator was replaced with a newer one. (stock was noisy and shorted)
- long break-in (>500 hrs)
i just love this preamp - perfect for my needs with 6 inputs and 3 outs.
always musical...