Yes, I agree with being able to clamp the wire down securely. That push the wire in I never liked. If you remove one of those plugs from the box it feels like the wires will fall out because they rotate and that cuts the wire slowly. They use even cheaper push fit schiit in RVs. After a while they don't grip at all. Should be illegal UL or not. Plus 15 amp circuits are pushed to their limits, like women's blow dryers. Sorry, I want to clamp the wire down.That's being very polite.Especially the contractor-grade outlets where the Romex is stripped and pushed straight into a hole in the back to be gripped by some flimsy piece of bent metal. Those things suck with a capital S. Got noise in your system? Start there.
Fess-up time: I did buy one of those fancy Furutech outlets a while back ($100 at the time) and actually tried to do a comparison. Now trying to do an A/B comparison with a wall outlet is fraught with problems, the foremost being our fallible short-term sonic memory. So lacking the means to be even remotely scientific about it, the first thing I did was replace the crap contractor grade outlet with a good Leviton (more on that below). At least level the playing field to the extent possible. Then I listened for a week -- a couple hours a night to the same 5 songs multiple times. Then I put the Furutech in and listened to the same 5 songs every night for another week. And finally, I put the Leviton back in and listened for a few nights. I really expected to hear a difference, so my preconceived notions were in favor of the Furutech. Well.....I can't honestly say I heard any difference. At least not a recognizable difference that would justify a $5 outlet versus a $100 one. As with their plugs, the Furutech was a work of art from the standpoint of manufacturing quality. No argument there, and impeccable quality impresses me. But sonically? I just couldn't hear any meaningful difference....even though I wanted to. Just being honest about it. That's just my experience and my opinion, of course. Someone else's mileage and opinion may be very different.
Back to the Levitons -- I really like the outlets linked below. Easy to install, as you can still just strip the end off the Romex and stick it in a hole in the back rather than having to wire-wrap it around the side screw(s). The difference is that the side screws on this operate an internal clamp, so rather than some flimsy piece of metal gripping the wire internally, the screw clamps a plate onto the wire. Very solid and tight connection, way more surface area involved between the outlet's inner contacts and the wire, and far easier than having to wire-wrap around the screw. And Leviton is just one brand that has this type configuration. I'm sure Pass and Seymour and others have similar offerings.
https://www.amazon.com/gp/product/B00134AW5K/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
Edit: For people like @Ripper2860 that would probably burn their house down, if you are not knowledgeable or comfortable messing with the electrical outlets in your abode, PLEASE DON'T! A qualified electrician won't charge all that much if this is something you really want to do and are not comfortable doing it yourself.
In our old house I ran two dedicated 20 amp lines to the listening room and used Leviton 20 amp plugs.
In this house I did the same thing except at the time Audio Advisory was running a sale on their Pangea 20 amp outlets and what was fun was the colors. Red, grey, white, clear. Not prohibitive in price to a good 20 amp Leviton at the Depot.
I don't really know why I thought this would be fun, to have outlets that scream, "I'm different, I'm dedicated. I'm 20amps and I grip like a gorilla!"
But I did. The Pangea stuff is such an expanded line now from 10 years ago. So these plugs have probably been replaced by more expensive ones, lol.
The novel idea of being able to unscrew a solid ground pin is clever on some Pangea power cables also. I have a couple of them. Those flimsy adapters to defeat the ground pin are so wimpy they shouldn't even be sold either, in my opinion with planet encircling variable milage of course.
Thankfully I didn't have to run everything off it.
