High output DAC?

The Altis Ref had two boards that were offered two(Two tubes) and four(Four tubes)voltS. I have both.

I have a Cal Alpha DAC connected to my ARC preamp and it really makes a big difference in volume and sounds great. If you like to try the Cal Alpha get the one that is not the 24/96, the regular one has a higher gain. You can find one under $400.00, excellent combo with the ARC gear!

A Theta DSPro Basic I has an output between 6 and 7 volts if I remember correctly. Not sure though if you they came balanced.

Q007 remembers correctly. I had to turn down my preamp 6db when using the Theta Basic. I think it had a balanced in/outs

Great Guys! Thank you for the speedy feedback on this and the suggestions.
I'd say that it matches what Q007 says about the Theta with what I experienced. However, I think (not sure) the version 1 hadn't balanced out, and even the v.II were not all balanced.
What a joke I was not keeping the Theta Pro Basic II with balanced output! I bought instead a Krell Stealth, that works ok on the sound field, but not happy with the output.

I never heard of the Altis, I think it will be a difficult task to get one around Europe. The Cal Audio I tried was a tubed version (can;t recall the model) and didn't work out well on my system. Had only RCA out though.

Thanks again, will start hunting dac's!
Brgds, Marcelo