Romulus CD player--

Bill,
There is actually a lot of logic in your statement concerning the Yamamoto DAC when you factor in the man behind it. Shigeki Yamamoto made/earned his reputation via his SET amplifiers and analog cartridges over a 20 year period(primarily in the Japanese market). He was determined to apply this experience and audio aesthetic and perspective to his DAC(he certainly succeeded ). Utterly organic, it just sounds right reproducing music as you have noted and I agree with you.
Charles,

Charles and Bill,
I am happy for both of you. I have having extreme purity and musicality from my Big7 and can trnsform the presentation by rolling DHTs in combination with therectifiers.

I am currently running a JAN 5r4gy with a new pair of EML45 - mesh plate pair I received yesterday. It stokes me that I have pairs of 45 globes from 1919 that I can use to get incredible midrange musicality and rectis like the Phillips metal base GZ34 that gives a tight minty fresh flavour. Most of these old tubbes cost me less that $20 a piece from a vintage seller in my area.

Nothing like big bottle DHTs...especially for chipless DSD.

Wisnon,
I have no doubt that the Big 7 DAC sounds fantastic. I use a DHT(101D)Line Stage and a 300b SET amplifier. DHT tubes when implemented properly just seem to be able to reproduce music in a most natural manner.The Yamamoto some how, someway has a very similar music making character. There truly are many roads that lead to Rome. The synergy aspect of putting together a system can't be overstated.
Charles,

Charles1dad, hi, did you find enough interest in the Yamamoto DAC to buy one for your self?, also, is their more than one model?, thank you.

I've owned my Yamamoto DAC since Feb 2010 and plan to keep it for a very long time. There are two versions, transistor and tube. Bill and I have the SS model. I haven't heard the tube DAC. 6 Moons did a review of both and found the same family signature with "subtle" differences. They said if you like one, you'll like the other. The retailer who I bought from felt the same for what it's worth.

I trusted his opinion and got the SS version as it was 500.00 USD less. I generally much prefer tubes but in this case I made an exception. I have no regrets, as Bill said the DAC sonically mates with the DHT presentation quite well.Ultra simple circuit,minimal filtering, no Op amps or NFB are probably major factors to the natural sound it has.