Is your budget $1K for just the amp or you need an amp and preamp, or an integrated amplifier for that budget? If the latter, I'd suggest looking into Vincent and they have a couple of models that should fit your budget. Or maybe a Parasound Halo integrated. If the former, I think you'll have to be patient and see if something comes up for sale in the used market, probably a vintage amplifier, that can handle a 2 ohm load on a sustained high volume scenario. I picked up a McIntosh MC2200 - later bought a second one, for around $1K and really like how it sounds with my Martin Logan speakers. Many newer moderately priced high powered amplifiers tend to get a bit grainy when they see higher loads (lower impedance) at high listening levels. Your speakers are really good and they can shine when fed properly. Good luck.