Tan, good luck with your new amps. I have had my M2-600 pair for a year and a half and I have not yet finished digging all the best sound possible from my system since they replaced an aging pair of Atma-Spheres that died together when an errant power regenerator went crazy. As I have written earlier in this thread, the break-in period is quite lengthy, although the amps show signs of excellence along the way. They are very revealing of problems with component and EMI/RF interference, cartridge setup, cabling, poor recordings, room tuning, etc. and drove me to make more than fifty significant changes in my system since new. They really came into their own when I discovered how much they like heavy brass footers and maple platforms. Most recently, I acquired a used W4S STP preamp and I am astonished at the synergy between them. I currently have my amps plugged directly into their own dedicated Maestro outlets through HCF Top Gun PCs and connected to the STP through heavily shielded Sonoran Plateau balanced interconnects. The STP is powered from a PS Audio Premier using a PS Audio SC Premier cord. All components use Eden Sound Bear Paws or Terra Stones on individual maple platforms suspended on iso-blocks. Care may need to be taken in physical placement of the amps as proximity to some components may result in stray radio programs mucking up the noise floor (a Thor phono stage needed to be relocated in my system).
It seems to me that the more I do elsewhere in my system has caused the D-Sonics to continue to rise to the challenge of making better sounding music. After this much time, The only bone I have to pick with the amps is that they made me work too hard on bringing the rest of my system up to minimum audiophile standards in order to get the best from them.
