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Light switch and amp

I have old Exposure XV Super. On one paticular listening session later at night 1100 pm the amp just seemed super sensitive. To the point I could here a small nosie when I turned the light switch on and off in the room through the speakers.

This is has only happen once since I got the amp a month ago. What causes this effect? In this same session the amp was creating a huge sound stage. It almost sounded if the sound was coming from the wall and ceiling behind the speakers.

I have yet to get this affect again. It was really nice and I have not been able to recreate it. Any thoughts?

Thank You
darkstar1
steuspeed's avatar
steuspeed
501 posts
 
You got good sound that night because the power grid is less noisy in the middle of the night. The noise you are hearing through the light switch could be coming through any component power cord. If you buy some power conditioner or power regenerator like PS audio, plug your gear into that except for your amp. Plug your amp direct in the wall. Eliminate any cheap power strips.
mcpherson
174 posts
 
circuit for amp receptacle and light switch may be tied together & picking up backfeed
elizabeth
6,726 posts
 
One inexpensive part you can upgrade would be the wall outlet.
If it is not a new one already, buy a heavy duty Pass & Seymout 20 amp duplex recepticle from Menards and put it in the wall you drea power for your stereo from.
$3 or so. wel lworth doing.
If you want to go further.. buy one of the "Porter Ports' from Audiogon. they cost about $35 and would also be worth the cost. Or an Acme silver plated.. Also $35.
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