KLE RCA plugs are the real deal!!
I ordered a set of KLE RCA Pure Harmony plugs to use for a pair of interconnects using Duelund 16ga wire. I previously built a set, with good results, using standard switchcraft plugs. The difference, even without break in, was staggering. Although the Switchcraft plugs sounded good themselves alone, however, when doing a direct comparison to the KLE's, the difference is clear. The cables using the SC plugs sounded harsher (especially on high end) when compared to the KLE. The cables seem to have a "free-er"(FLOABT) sound or more flow. Seemed as if the SC's were holding something back.
As far as building the cables, the separated solder posts make things way easier. Everything is quite compact (especially for larger wires) in the SC plugs. The removable grommets are a nice feature if one wants to use thicker cable wraps, shrink tubing or shielding.
One other area I think the KLE's are great for is trying wire combinations without soldering. With the "V" shaped solder posts, one could "wrap" the ends somewhat snug and use the wire locking screws. You would still have to be very delicate when hooking up...however this is something that is pretty much impossible with the SC's.
As I plan to build my entire system's cables, KLE will be the plugs I use on everything. I highly recommend