The original dual was adjustable on both channels. His current version 300/SN7 is adjustable on the 300b. SN7 is only main VC. @Gryphongryph , does the gain adjust the sn7 output ? Regardless, if your losing a channel when you engage it, something is up. Possibly the switch. If your in the US you can send to me if need be. Contact Mick for my info. Swap tubes side to side first though just to be sure.
Supratek Owners Thread
Greetings All -
It appears that the 26-million-plus view, multi-decade "Preamp Deal of the Century" Supratek thread has been removed. I'm not sure why, but suppose there must be a reasonable explanation.
In any case, on that thread I recently asked whether there might be interest in a "Supratek owners thread" and received some interest.
The purpose of this thread is for Supratek owners to share the details of their system, ask questions, share information about any tube-rolling they have done, and so forth.
I'll kick us off here with a few details about my system -
ancient Linn LP12 with Ittok arm, Dynavector 17D3 cartridge into Cortese LCR phono stage
Power amp is a fully serviced Innersound Electrostatic amplifier
Quad ESL63 speakers (not USA monitors) or JBL 4430 studio monitors
Digital sources are immature and evolving - ancient Fostex CR300 cd player/burner
DacMagic 100 DAC
Nordost Blue Heaven 75ohm interconnect
Due to the fairly long lengths of speaker wire required in the new listening room, speaker wire is Belden 12 gauge wire designed for low-voltage outdoor lighting systems.
Next steps - dedicated circuit, new power cords, new interconnects, new wires.
It appears that the 26-million-plus view, multi-decade "Preamp Deal of the Century" Supratek thread has been removed. I'm not sure why, but suppose there must be a reasonable explanation.
In any case, on that thread I recently asked whether there might be interest in a "Supratek owners thread" and received some interest.
The purpose of this thread is for Supratek owners to share the details of their system, ask questions, share information about any tube-rolling they have done, and so forth.
I'll kick us off here with a few details about my system -
ancient Linn LP12 with Ittok arm, Dynavector 17D3 cartridge into Cortese LCR phono stage
Power amp is a fully serviced Innersound Electrostatic amplifier
Quad ESL63 speakers (not USA monitors) or JBL 4430 studio monitors
Digital sources are immature and evolving - ancient Fostex CR300 cd player/burner
DacMagic 100 DAC
Nordost Blue Heaven 75ohm interconnect
Due to the fairly long lengths of speaker wire required in the new listening room, speaker wire is Belden 12 gauge wire designed for low-voltage outdoor lighting systems.
Next steps - dedicated circuit, new power cords, new interconnects, new wires.
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- 501 posts total
@jackd my speakers are Goldenear Triton 2+, $3000 or less new or used |
@jslateiv the gain adjustment is only possible on the 300b something I wish Mick had informed me about before I decided to buy, buyers should be made adware of that I feel. I am certain it is the switch that is the problem, but unfortunately I live in the North Atlantic Ocean with no real tube experience person to help me with this problem, really don’t want to send the pre back to Mick one more time. it’s unfortunate as I feel only half of the amp works as intended, but I paid full price.
Anyway, the sound from the 6SN7 is great, even if I have to use 12db attenuators to match better with my power amp. |
- 501 posts total