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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 jj2468

jj2468 OP
280 posts
 
Thanks all for your thoughtful responses. I should have said in my original post that the hum completely disappears when I lift the ground on my amps going to the wall socket.

But, I want to try the amps (monoblocs) with my new Equitech 1.5Q and Equitech advises against lifting the ground when using their device.

Plugged into wall - ground lifted ... no hum
Plugged into wall - not lifted ... hum
Plugged into Equitech - not lifted ...hum
Plugged into Equitech - lifted ... not tried.

I'll give removing the preamp cables a go.
Best regards, Jeff
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