amplifier hum and dimmer switches

[gcmarshall]

i was wondering if anyone can offer advice on something. i am considering a separate power amp, possibly a rotel RMB-1095. rotel tells me there are reports of a "hum" being amplified by the system when the unit is installed on a circuit that has a dimmer switch on the same circuit.

my question is - is the dimmer able to cause the hum when light the dimmer is controlling is turned off? or, must the light that the dimmer controls be "on" for the dimmer to possibly induce a hum into the system?

 

[j_garcia]

Should only happen when it is on.

 

[majorloser]

If you have to keep the audio equipment on the same circuit as the light dimmer, Lutron makes quality solid state dimmers that should not give you the problems of the older knob styles. I'm using Lutron Maestro IR dimmers for my theater. Since they are IR, I can control them with my Pronto Pro.

http://www.lutron.com/maestroir/