I have absolutely no experience with ASL, but have plenty of experience with tubes combined with vintage Klipsch speakers and that combination has been consistently just wonderful in my experience. You don't even have to go as far as spending the full $1K, but at that price point, if you have the room, look for a pair of vintage LaScala's that have been used for home use only (no club speakers or theatre speakers). If you don't have that much room Fortes or Forte II's at around $600, vintage Heresys at $400, or the larger Cornwalls at @$800 would all be good bets for low-powered tube amps. You can tweak any of these selections with your left over $ by adding an improved wire harness (internal) to replace the inexpensive stock wires for a significant improvement. I would ONLY reccomend the vintage models that Paul Klipsch himself designed and definitely would not purchase any of the modern Klipsch gear as it doesn't hold a candle to the vintage stuff IMO, with the exception of the models they still make which were Paul's designs (Klipschorn, LaScala, and Jubilee if they ever release a home version). Do searches here and on AudioAsylum for further input on synergy with your gear, but I'd bet they'd pair of well, save $ and give you the biggest bang for the buck. My favorites are the LaScalas if you have the room.