Power Cable Suggestions.

 I was skeptical of how power cables could affect the SQ of a system for the first 2 decades of  being an audiophile.  Everyone can hear the differences in components, and interconnects, and speaker cables.  I couldn’t understand why power cords would make a difference.  After reviewing the many people that commented about the effect of power cords on SQ, I tried upgraded power cords ($100-$500 MSRP), and I heard no difference.  However, just last year, after speaking with a trusted dealer, I tried markedly upgraded power cords ($3,000-5,000 MSRP) that were loaned to me without purchase, and I easily heard a significant difference when plugged into my pre-amplifier.  When I plugged these cords into my amplifier, the difference was not obvious.  Consequently, I now will have to agree that power cords *can* make a difference in SQ, but not always for every component and not every power cord.  The most prominent improvement in SQ that I heard was when used into my pre-amplifier.  As for which power cords?  I would have to say that it’s like interconnects:  trial and error is the only way to really know!

+1 for Ice Age Audio OFC cables!

If you need a power cable ASAP to get a new component up and running, get something like a Tripp-Lite Heavy Duty 14 gauge power cable at about $12. Use that as your starting point for comparing "audiophile" power cables. In my own experience, As others have mentioned, synergy with your components is a key consideration. I've found some "audiophile" power cables in the $300-500 price range to sound clearly worse than a cheap Tripp-Lite power cable, while others do sound better.

They do make a difference for me. I am going to keep saying FOR ME. 10 years ago I had a Def Tech Sub-800. I used it with its stock power cable. I wasn't into cables back then so I decided to take a gamble on one. I bought a Monosaudio power cord for $40 and the subwoofer performed better.

Yet when I compared that same thick cable to AQ's entry level cable the Monosaudio got sent packing. So FOR ME, cables have proved to work. I will also believe that they didn't make a difference for you. I can live with that. I just won't go into anticable posts and try to convince them that their ears are bad.

My first “high end” power cable was an Audience Power Chord. As soon as I plugged it into my Plinius Power amp, I heard an immediate difference in the quality of the bass. So I became a believer.  For the OP, I love Shunyata cables — I have a full loom of Shunyata Sigmas.  Out of your price range but . . . On the other hand, I had used Morrow Audio MAP3 power cables and they are an excellent value for the money.  Not in the same league as the Shunyata Sigmas but an excellent and (relatively) inexpensive cable.  I have to say though that I heard no difference at all using any upgraded power cable on my Rel s/510 sub.  Nothing. My biggest boost was the power cable on my pre, followed by my DAC and then amp.