Hey Shutterbug, Blueswan here. Bought your A3s and love them! I know Tube Research doesn't recommend it, but you might want to consider a power conditioner. I use a Tara Labs AD/10B. Everything is plugged into it. (I can plug in and run a vacuum cleaner in my listening room and the TV won't show a single interference line.) This approach allows you to have a single ground for the entire system, the power cord from the conditioner to the wall.
Problems with Lutron Light Dimmers causing a Buzz
I am having a problem with the Lutron light dimmers in my home causing a BUZZ in my adio system. It never was that much of a issue or problem until i sold my SOUNDLAB A-3'S and i am now running a pair of JBL 250ti's which are much more efficeint. We built our home about 2 years ago and we have approximately 12-15 of these Lutron Dimmers placed throughout our home and i have to make sure that every one of them are turned completely off, otherwise i will have a horrible buzz in my speakers that was never even noticeable in my previous A-3's. I do have dedicated lines going to all of my gear, but i do not have any kind of power conditioning or surge protection due to the fact that i have always been told that it destroys the sound and quality of my system.
My system consists of the following:
TUBE RESEARCH LAB 300 MONOBLOCKS
TUBE RESEARCH LINE PREAMPLIFIER
SHANLING SCD200 SACD PLAYER
JBL 250TI SPEAKERS
FIM/CRL GOLD POWERS CORDS, IC'S AND SPEAKER CABLES
Do any of you fellow audiophiles have any solutions to this problem? i really would like to avoid removing my dimmers, due to having so many, plus i love the effect of them in our home. Any help or suggestions would be greatly appreciated.