kevin gilmore

Time for my 2 cents. The SR-007 does in fact go to dc. But the sound is severly limited by the choice of output tube, you can tube roll the thing night and day and you still can't get away from the fact that a 450 volt (max) tube is being pushed to 700 volts. The Rp of the tube limits what it can do at low frequencys. Coming some time in the future is the KGST which has 6s4 output tubes which have about half the impedance of 6cg7's. And are rated for the voltage. Fully DC coupled. The ES-1 and BH share the same output tubes. About 4 times the power of a sr-007. The ES1 is based on my ac coupled design. The BH is fully dc coupled. They sound much more similar than you might think. No one is currently making BH's. So if you want one, you would either have to build it, which is a significant amount of work, or pry one out of someone who already has one. I should also mention that i own an aristaeus, and i very much like the sound of that too.