JRebman
Not hijacking at all. The 13Em7 will SHINE with the B200 IF you high pass it @100Hz with the shunt capped input Roger has provided, at my original suggestion, which came about because he realized Richard and I weren't as nuts as he thought, with our twinkie open baffle madness: he loved the sound. Everyone loved the sound. Beyond that, the B200, like any wideband driver benefits from being relieved of bass duty; any tube amp, particularly single ended triode amps benefit from having both tube, and transformer relieved of bass duty. Makes for a better sound. IMO, bass these days is cheap, and can be found at Costco, not far from the 10-packs of socks, batteries, and power bars. That is my impression of 'got bass?' these days.
Yes, it could pass for a humidor, or grown from some genetic matter from a Hamburg Steinway. The lid says "Steinway" to me. Roger and I both play piano, so the brushed black lid, and rubbed Walnut is a little kharmic link between us, my view.
My impression of the sweep tubes is, with these things around, who cares about the fashion tubes? Not me, is the answer. None of the new owners of this thing, is another... I can only speak for myself, but these tubes sound far too close to 2A3, and the power side is identical to an indirectly heated 2A3, with the driver side sort of a 6SL7, a very well known, and nice combination in a 2A3 amp, but far simpler, more linear, better curves, no hummmm, tubes are out there in the millions, literally, for as little as $3.00. I have come to the conclusion that the 13EM7 is the clever substitute for 2A3, with all of the good, and NONE of the bad. 3 watts will work with any of Louis' speakers, and would sound fantastic with your Sennheiser phones.