Tablejocky - No ..we will use EL34's. That's stock. Remember that line? "We don't need no stinking KT150's" We'll play some Stevie Ray and a couple other really well-recorded dynamic pieces.
jbhiller - Thank-you for the kind words. The amp was not broken per se. It was the cable for the volume control came loose in shipping. We got the amp back and simply plugged it in. I replaced the amp because when people get new gear....it's a rush. And far be it for me to be a buzz-kill to that 'rush" as we say in California. Thank-you for your parience.
skyhawk51 - Yes you can use the PrimaLuna DiaLogue Premium preamp with virtually any amp made. It has a low 256 ohm output impedance. If you go read my videos on preamps, you'll notice you can make a decent tube preamp for $1500 retail and make money. It's not tough. Your preamp is a sum of parts. Two 6922's per channel, and decent performance no doubt. Going up will reap some benefits, but not as large as going up in amps. The DiaLogue Premium preamp will go head to head with $25k preamps, partially due to every bit of the circuit path is done right, meaning:
Dual mono, tube rectification, point to point wiring, big toroid transformers, and details like AC Offset Killer, Takman resistors, Mundorf Mcap Evo SilverGold caps, ect. It's 53lbs.
But the other part of that is diminishing returns in preamps. Have fun with what you have and upgrade the 6922's to something that fine-tunes the color to your liking. It can be done cheap. I know that preamp, and you can use Tungsram PCC88's in it and get a nice bump for cheap.