2. amps-preamps
  3. 1165674695

Noise when shutting off power amp? Help?

I have a Classe 100 power amp, and preamp, and when I shutdown the power to my system Power amp>preamp> source(in that order, which I believe is correct), I shut off the power amp first, and when it clicks off it sends a noise through to my speakers. Is this normal? I had a Rotel amp before this and it never made a sound. Should I just turn the volumn down on the preamp before I shut the power amp off?
jeffo19
6 responses Add your response
jea48
4,413 posts
 
Should I just turn the volumn down on the preamp before I shut the power amp off?

Yep.... And if the preamp has a mute feature, mute the preamp before turning off the power amp.

Post back with your results.
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muzikat
926 posts
 
Why not just leave it on 24/7?
jeffo19 OP
25 posts
 
Can anyone tell me why this power amp does this? Is this a common thing with Classe power amps. With the Rotel amp, it did not matter what the volumn was left at, it shut off completely quiet, never made any sound through the speakers.
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jeffo19 OP
25 posts
 
I don't mind the sound the power amp makes shutting down, but it concerns me that I hear it through my speakers. I find this quite odd.
avguygeorge
2,300 posts
 
I would conclude amps differ in their behavior when powering off. Case in point: I have had 2 amps from Belles, the first was the HotRod 150. It never cared about sequence when powering off.---The 150a ref. I now have requires the pre off first---or change to an unused input,by remote,in my case.---If it ain't music,I don't want my amp reproducing it.
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