audiozenology-
1. I doubt that is the tube amplifier, but you could be right. These speakers do have an impedance problem at low frequency (e,g, 100 Hz). I now use an ARC GS150, 8 KT150 tubes putting out 150 watts into 8 ohms. That might be a problem.
2. The room was designed and built not as an anechoic chamber, but it took 2 years with the help of an audio engineer from the University of Michigan. I doubt that this is the problem.
3. Since the plain old copper wires sound much better (no "brightness"), with slightly less resolution, maybe I should stick with those.
The system is: Dedicated mains --> custom-built audiophile wall receptacle--> Nordost Valhalla power cord --> Nordost Qbase --> --> earth ground-->Nordost Frey 2 power cords--> McIntosh C22 preamplifier, high current one into adjacent ARC GS150 amplifier. Since I live in a rural area where I cannot stream, I use ripped or downloaded files from my work, or my brand new Esoteric K1X (bought it in Tokyo this fall) as the CD/SACD front end for those hard disks. It has a Cybershaft (not Shunyata, my apologies) master clock synced into the K1X using a Shunyata 50 ohm Sigma clock cable. The interconnects are also Shunyata Sigma XLRs. The speakers are Shasha 2 / DAWs. I also use a Nordost QPoint under the McIntosh preamp (greatly improved the audio quality). I am open to suggestions...
