I replaced my Parasound preamp and amps, with W4S gear. The DAC, Integrated and Multi-channel amp are fabulous. The MC7 pulls a little current at startup, so I decided to just leave it on full time. W4S equipment runs cool unlike my Parasound gear. Both are good products, but W4S is a big step up IMO. Only real beef I have is the DAC-2 remote conflicts with the integrated amp remote functions, so the DAC remote functions must be deactivated. I think W4S would be wise to use a different code signal to allow remote use for both devices. Minor issue, but an issue nonetheless. Do give them some time to break in. A couple hundred hours and the W4S gear really starts to shine. W4S customer service is helpful and available to discuss issues with. Very happy with my purchase thusfar.