Absolute top tier DAC for standard res Redbook CD

Sksos1, I admitt, I am afraid to go down what could be an endless Rabit hole of tube rolling!, I love my sound now!, however, I have followed Jafox's post about tubes, so Steve, what do you think about this? I have a 6z4 recetifier tube in the power supply that is vintage American, how or why this came stock in my vincent player is baffled me,it sounds great, the problem with that tube, there is no replacement for tube rolling, so I will have to go back with the same there, but following Jafox's tube exsperience on the threads, I learned from him that a good tube for the 12AU7 tube replacement is or could be the RCA 12BH7 Red Label tubes, or the 12BH7A Black plates tube, and I suppose the Telefunken 12AX7 tube for the 12AX7 tube replacement, unless any one has a better idea for the 12AX7 position?, Steve, I have incredible Bass and treble extention with the stock tubes now, I would be angry if I lost that part of the sound, I have read that some tubes can have you loose bass, My player has only one chinesse tube inside stock, the other tube that came in the player stock is a harmonix tube and then the American 6z4 tube that I do not know who made the tube?, cheers.

Hi Jafox, your last post is how I compaire audio, great recommendation your post is, but I have been doing this along time, and your post is how I do things, funny though, I really do not have much tube exsperience, so your knowledge is most welcome if you care to share?, Thankyou Jafox.

Matt, I appoligize for the off topic post here, However, If you do not mind, I wanted to take advantage of haveing alot of the Audiogon seasoned audiophile in one place!

Audiolabyrinth, why not start a thread here or at audiocirclce dealig with this?
I recently got some tube experience about this, for the 12xxx tubes, try the european ecc equivalents...ie phillips/ siemens/mullards/brimar/ Marconi/Tungsram(white labels) . Not Telefunken, which are clean but are dull.
Not electro harmonix, not JJ unless very old. Not any chinese either.
Unfortunately, some of the recommended tubes are expensive online, so be patient.

US tubes rule the roost for rectifiers and 45 triodes. PM me if you need more of my 2nd hand info. I learned all thus only this week doing a deep dive.

Audiolabyrinth - Not at all.

I'm mid reviews and burn ins. Not much to add.

But you are re-affirming my point about chasing the rabbit with tube rolling. For some, it's the bees knees and their personal route to audio nirvana. I found that it ended up taking away from my enjoyment of the hobby because of my own obsessive need to try everything in every combo....

I can tell you all that with stock tubes, the Big 6 was humbled six ways to Sunday by my ODSE. I can't comment on the Big 7.

With Steve's implementation of the improved USB interface it will take the ODSE up another notch. And now he openly announced his pending uber DAC, the OverDrive SX. I can't wait!!

I'm cooking the DSD-S right now. Wanna give it another week of steady zeros and ones before final review.