What do you think of this power cord?

One thing I should tell you is that my house was built in the mid-50’s and had the two prong outlets without the opening for the ground.  When an electrician was doing some other work, I asked him about getting grounding receptacles in place of the original ones, so that I wouldn’t need to use those adapters.  He told me that it would be expensive to re-wire the house but that I could still install the three prong receptacles if he replaced the existing circuit breakers with appropriate breakers.  Thus, I wouldn’t have grounded outlets but it would be legal and safe to do it that way.  So we did.  Thus, I do not actually have grounded outlets.

Neither do I have a power conditioner.  I have two Furman power strips that all my equipment, including a large TV, are plugged into.  Every spot on the strips is in use and I could use more.  I could check to see how expensive it would be to have two dedicated outlets installed, if that would help given my current situation.  My understanding is that the dedicated outlets could be grounded, right?

A new dedicated 20A line will be a nice improvement. Especially if you DIY which is very easy to do.Either way make sure it is just one line that goes direct to one outlet for the system. Use a multiple gang outlet box so you have at least four plugs on the wall. That way you can run your two Furman strips and still have wall outlets to plug a few critical things in direct. 

Yes the new line will be modern standards with ground. Because of this you will want to be sure everything connected to your system is plugged into this one line and nothing else. Otherwise you are very likely to get ground loop hum. If you have an electrician install this do not let him talk you into adding any other outlets or making any connections to this line. One 20A line direct from the panel to your system outlet is all you want.

What I think is you are using the freebie rubber power cord that came in the box. Probably anything, literally anything, is better than that. But if you are talking about spending money, even only $60, then reading eBay ads is not the way to do it. Nor reading anyone else’s ads for that matter. Nor reading any engineering, materials, geometry, etc stories. Forget all that.

Instead what you do is buy only what you have tried and heard yourself, or read a lot of reviews or user comments, and like what they have to say about how it sounds. Because everything, every wire, power cord, interconnect, or speaker cable, it all totally affects sound quality. Not in some subtle hard to hear way either, but big and obvious, sometimes dramatically so. It depends a lot on what you have in the rest of your system. Not because the power cord needs to be "matched" either. This is BS. Whatever a power cord sounds like, it will sound like no matter what its plugged into. But it matters because you don’t want to spend $500 on a power cord to plug in to charge your iPad. Not because you won’t be able to hear what the $500 power cord can do either, but because at that level you can get a whole lot more with something else.  

You probably won’t find many reviews on this particular power cord. What I would do, search around for used power cords by known long term makers like Synergistic Research. There will definitely be reviews, and some very good cords will be old enough you will be able to buy a lot more for your money for a lot less than they cost new. But even then do not buy based on price, but based on reviews. Listener impressions. Only way to go.