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.
markusthenaimnut

Showing 13 responses by firstgrowth

Ok, swapped out the source and same result.  I may switch back to the Don Sachs preamp and see what happens.

@skypop No clue.  I just tried to post one off of Instagram and it came up blank.  Maybe someone can give us a tutorial.

Wig,

 

I spoke with Mick before ordering mine and asked what upgrades I needed to consider.  He said the only decision was whether or not I wanted chrome.  I was a little surprised but that's the story.  I'm 2 months in.

 

Jeff

Ok.  Idiot alert.  I received my pre amp yesterday.  It's a spectacular looking piece.  I followed Mick's instructions and I'm getting zero sound.  Has anyone run into an issue and found a solution?  I have the switches set for 300b and SE input.  Any insight would be greatly appreciated.

@jslateiv 

 

Enormously helpful.  I flipped the gain switch the opposite way as well as the mute. There's some sound but I'm not there yet.  At least I know the cabling is correct.  

The sound is faint and thin.  I tried the 45/300b switches and no change.  I don't have my multimeter at this house so I'm flying a little blind.  Is there a chance I installed the output tubes incorrectly?  I can shut it down and reseat them.

There's something going on.  I got it to sound a little better and then it reverted back to a thin/faint sound.  I'm going to try a different source tomorrow and eliminate one possible issue.  It's gotta be something simple and I'm optimistic I'll get this working.  Can't wait to hear it.  

Success!  I started from scratch and with Johhny's help It's making music.  Thank you everyone for the input.  This has never happened to me before.

Sound is really good right out of the gate.  Piano music in particular has amazing depth.

@jtgofish 

I rewired everything and reseated the tubes just to see if there was something I did during setup that could have been incorrect.  It turned out that the switches that select 2.5v vs 5v on the DHT tubes were set incorrectly.  I'm running 300b and once I made the change it started working.  

Yes, exactly.  I unplugged everything and started as if it came from the box in case I missed something.  I was trying to eliminate any variables.