Oh Boy Schiit Announces 10 Tube Headphone Amp for $1799.00

Each tube increases chance for noise

With paralleled output tubes, this hardly matters. The SNR spec 90dB / 100dB is excellent. You won’t hear any noise unless you grossly mismatch this amp to an IEM. It would be a different story if this was a preamp using all the tubes to stack gain a mile high (most likely to be thrown away by the volume control).

Something like an ES Lab ES-R10 would be a good real-world test of noise floor audibility for this unit - 32 ohms, extremely sensitive (for a full size headphone), and a great sounding headphone with a price matching the amp. I expect it would be dead quiet. 

Wonder what it will cost to retube  with high quality NOS tubes?

Wonder what it will cost to retube  with high quality NOS tubes?

The eight 6N6p are still cheap, ~ $20 a tube, and the input pair can use a plethora of available new 61Np (also ~ $20 each) and new or vintage 6922 / 6DJ8. There are no rolling options for the 6N6p. So retube will cost $160 plus however much you want to drop on a nice pair of 6922 (which should last an extremely long time anyways).

Seems like a good choice of tubes for the job. 

Eight 6N6P tubes for $30 + shipping from Ukraine. Russian- made. Probably the same already in the Schiit!