Hey celander,
Here's the answers to your questions:
1) I scored my NOS CCA 1962 Siemens from Brent Jesse.
2) All the details regarding how the DAC sounded/performed presented in the review apply to Lab12 with the stock tubes and the Siemens.
3) Yes, with the Siemens you get a little more of an "organic" sound then with the stock tubes, but either way the DAC sounds wonderful.
4) Mike Kay (Audio Archon) has at least three different excellent NOS 6922 tubes that he can provide, along with the standard stock tube, to tailor the sound to your personal taste. However, with the stock tube it's a great musical presentation.
Here's the answers to your questions:
1) I scored my NOS CCA 1962 Siemens from Brent Jesse.
2) All the details regarding how the DAC sounded/performed presented in the review apply to Lab12 with the stock tubes and the Siemens.
3) Yes, with the Siemens you get a little more of an "organic" sound then with the stock tubes, but either way the DAC sounds wonderful.
4) Mike Kay (Audio Archon) has at least three different excellent NOS 6922 tubes that he can provide, along with the standard stock tube, to tailor the sound to your personal taste. However, with the stock tube it's a great musical presentation.