2. amps-preamps
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Dumb Question 36

I just bought a used Conrad Johnson PF-R pre-amp and noticed that it has no power on/off button. Am I supposed to leave the unit on all the time? Is this a common practice in audio quipment these days? This is the first unit I have ever seen with no power switch. I have heard that there is a certain protocal you should use when turning on your system and reverse the procedure when turning it off(something like turn pre-amp on first then power amp and then reverse the procdure to shut down). I presently have the amp and pre-amp plugged into the same surge protector. When I turn on the power button of the surge protector naturally both units come on--no problems--but when I turn off the power through the surge protector I get a LOUD "POP" from the speakers. This can't be right so how do I hook up the sytem to the power correctly?

Thanks.

Steve
say811

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driver's avatar
driver
750 posts
 
What Sugarbrie said. I have a pre amp (Pass) with the same setup. No power switch. My amp also has a standby switch so all I do is use that & my system is ready to go.

I also don't use a conditioner but suggest you try plugging the preamp directly in the wall. You might want to experiment with plugging the amp directly in also to see if the power conditioner affects the sound.
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