I think you can get one from ECP Audio for around $3500 for one with less exotic chassis. If you want to bling out on the chassis then it can get up to $5000. Yes, I know that the price is very high but I have never heard the HD800 sounding this good before and I had the GS-X MKII before as well as a better version of it on my SuSy Dynahi. Doug's table at the Canlanta Event. ECP Copenhagen Solidstate ECP Copenhagen Tube ECP DSHA-2 (smaller amp at the top) These amps are all the successor to the ECP L2, which was rated by Tyll as one of the very best amp for the HD800 Classic.