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Will doing this blow my speakers?

Hi, I'm trying to chase down the source of a 60 cycle hum.

It was suggested to me to power up my monoblocs as follows: no to connecting any preamp to amp cables; and yes to connecting the amp to the speakers via speaker cables.

Will this blow up my speakers without any signal coming into the amp? I've been trained by other audiokooks to never power up the amp connected to the speakers without a signal/load connected to the amp inputs.

Thanks for your help, Jeff
jj2468

Showing 1 response by gs5556

gs5556
1,241 posts
 
One way an amp can damage a speaker is by supplying DC current, either by internal damage or a faulty soft-start circuit (the "thud" you hear when powering up). This, if it happens, is independent of downstream source components. If your amp is okay, I agree, you can safely power it up with no source components.

I don't think you need to be reminded to change connections only while every component is unplugged. Don't place faith in the power switch alone.
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