I am selling two 4 amp balanced power conditioners that were made for me by ampsandsound. These feature both a balanced transformer and a common mode filter. They work excellent and have more then enough power (on there own) to power a ampsandsound Bigger Ben, Chord M Scaler, Chord Dave, and Auralic Aries G1 (measured draw was 145 watts when running at full power, these do 500 watts).
$250 plus paypal and shipping. It is amazing how well they work. Expect shipping to be between $50 and $80 do there weight. Condition is 8/10, I could only find a single scratch on one of them, and it is photographed.