Tube DACs


For some time I've assumed that tube DACS are meant for direct output to power amps -- in other words, no reason to use a tube DAC if you are running through a tube preamp (unless all components are by same mfr and designed for synergy).

But lately I have seen posts implying some run Brand A tube DAC through brand B tube preamp -- say, Primal Luna 100 to Rogue RP-9. Can't find any prior threads addressing this topic directly.

So, question: am I wrong to suppose that pairing random tube DAC A with random tube preamp B is a bad, or at least a silly idea, absent a known synergy?
 


S

 

hickamore

The DAC is your source.  So if you want your system to sound the best it can, get the best DAC you can.  We prefer tubes so that is our bias.

 

Happy Listening.

@macg19   I saw you recently added a Black Ice tube DAC into your system and mentioned rolling in Mullard tubes to really increase it's sound/performance.
I've been struggling with finding the right tubes for my Black Ice: the balance of 'quiet' vs tonality.  Can I ask where you got your tubes at?  Any issues with noise/microphonics? 

@amtprod I got the Mullards (and others) from Brent Jesse. Go to audiotubes.com

Brent is a guru, let him know Ian sent you (wont save you or me any money but it would be nice)

Best way to get a hold of Brent is email. He is busy and short handed.

The Mullards were expensive, $450/pair (1950s halo getter long plates).

Brent also recommended "Brimar military CV4035 “flying lead” 12AX7 modified by Bob Hoviland for use in a 12AX7 socket". I think these are $350/pair.

I have relatively cheap Brimar’s in my tube amp and they are wonderful - I’m a/b testing these against a much more expensive Mullard’s right now and so far the cheaper Brimar’s are better but I have many hours to go before making a call - the Brimar’s have a lot more hours on them than the Mullard's.

Dave from Raven Audio also suggested Amperex & Valvo (ECC83). Brent has these and lists all prices and in-stock items online.

These tubes were recommended specifically for the DAC - ZERO noise / microphonics.

Brent will allow a trade-in if you dont like what you get - no re-stocking fee if you apply the full purchase price to another tube.

I’d give the Brimar’s or Valvo’s a try first.