Plug Amp directly to Mains or use a Power Conditioner?

I was once almost exactly where you are at (house built in the '60s, many of the outlets ungrounded, antique electrical panel)..  Is your electrical panel an antique and if not do you have any space left for another circuit?  It would not cost thousands to run another line. 

Well, when the PC arrives, plug it in, give it a few hours to warm up, then try listening to your reference tracks with your amp plugged into the wall, then the PC, then the wall again. Then let us know how it worked out.

Thanks all. I guess

I left off some details about my question. I have read in various publications that an amp has internal voltage regulation that could be adversely effected by external power conditioning. If that's the case, in general, I would still plug the amp into the mains. I bought the power conditioner primarily for my source equipment.

Taken from the '10 Biggest Lies In Audio'

Just about all that needs to be said on this subject has been said by Bryston in their owner's manuals: "All Bryston amplifiers contain high-quality, dedicated circuitry in the power supplies to reject RF, line spikes and other power-line problems. Bryston power amplifiers do not require specialized power line conditioners. Plug the amplifier directly into its own wall socket."

What they don't say is that the same is true, more or less, of all well-designed amplifiers. They may not all be the Brystons' equal in regulation and PSRR, but if they are any good they can be plugged directly into a wall socket. If you can afford a fancy power conditioner you can also afford a well-designed amplifier, in which case you don't need the fancy power conditioner. It will do absolutely nothing for you.

@motown-l 

I left off some details about my question. I have read in various publications that an amp has internal voltage regulation that could be adversely effected by external power conditioning.

did they mention what amps by chance ?

what amp are you using ?