Thanks!Generally speaking the A31's performance is not constrained when plugged into the conditioner while powering your KEFs. If you use the amp on a different outlet than the rest of the equipment there is a much higher chance for a difference in ground potential which can result in humming or buzz. This could be the reason you had trouble with HDMI cables in the past. I suggest trying to keep everything on one circuit if possible. Keep in mind that under normal circumstances the A31 does not come close to its full power output on all 3 channels at once. If you need more information please contact our tech department.
Service Department contact and hours
Parasound's San Francisco Technical Department is open 7 a.m. - 5 p.m. Pacific Time.