I have the darkvoice with rca 6as7g and cv181T 6sn7 tubes powering the 6xx. I also have the he400 and a full schiit. I'm curious if anyone has dac recommendations to pair with the darkvoice and 6xx setup specifically. I'd be okay with a dac/Amp combo too if it made sense. I don't have a set budget but something in similar price range to darkvoice would be ideal. In general looking for a dac that performs well above its price point which I wouldn't have to upgrade for a while.