APS audiophile regenerator

The APS Purepower 1050 I recently added made a dramatic improvement to an already fine system (Aesthetix, Wolcotts, Sound Labs), which previously ran on 3 dedicated lines, but it also added noticable noise from it's cooling fan.

Could you hear the noise at 4 feet?
Is such APS the same as for example the Jeff Rowland Coherence 2 or Dartzeel pre that both uses batterypower?

I got one too, the improvement was really great but yes the fan noise is a problem.
I put it in another room because even from 15 feets i could still hear it.

I have a APS purepower 1050. You can hear a low fan noise but it does not bother me and I can't hear it if music is playing. The 1050 brings my system to a higher level. It upgraded the sound quality of my system with deeper bass, cleaner and clearer midrange, and sharp pristine highs. It takes away a veil of grunge and I can hear deeper into my recordings then ever before. It is like listening to your system at 1 oclock in the morning but even better than that, and it sounds the same no matter what time of day I decide to listen to my system. I really didn't believe that it could make such a difference as I already had a dedicated power line to my equipment with pretty good power. It does seem to work very well and i am quite satisfied with it's performance.