Tube Audio Design PreDac


Does anyone have a link to the specs for the Tube Audio Design PreDac? The specs I'm trying to obtain are output impedance and gain. I currently own this unit and suspect that it's output impedance does not match my current amp's input impedance of 3k ohms (Dynaudio Air20).

I will most likely wind up selling this unit to get a preamp with an properly matched impedance with my amp.

I appreciate any information on this matter. Thanks in advance.
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Sometimes components like this allow you to change the overall global gain of the unit, just for this reason. I'm guessing that if your component has this adjustment, it would be inside, otherwise you would have spotted it.