NVX XQDC4 4 AWG High Current Power and Ground Quick Disconnect with Surface Mounts

This is really nice to have. I used mine as a disconnect and basically a reducer. I ran a larger guage wire than I needed to get the power closer to my amp for less voltage drop, then from this block to the amp, I ran the maximum guage my amp would accept. Works great.

This plug is pretty much un-useable, way too tight, required significant effort to separate, and that is uninstalled and with no cables connected. Attempting to separate with leads connected would surely detach cables from the forceful handling required to attempt separation.

A couple thingsthey could do better is having securement that allows for the car or the amp side to be screwed down. As well as a way to put the wire in some and have only the insulation showing. Might need an extra 3/8 an inch of plastic shroud that could cover the possibly bare wire and make the holes a little deeper with out the little screws poking in on the inside of the connection.Build is excellent.

Secures wire from 4 gauge to 18 gauage nicely but a little difficult to unplug for removal.

Bought this connector for my amp. Chose this one over the Scosche because it had a mount (allegedly) to hold the connector in place on my rig. Unfortunately I didn't receive the mount (like many other reviewers) I sent an email about this missing part....Some time has passed and still no action.Plug is quality though.

Used for Sub Woofer speaker/amp. Really nice for quick removal of the sub/amp. Unit makes a really good connection and meters minimal resistance. It's rated for more amps that i will ever need. If you're using quality amp stranded wire, the 4ga wire terminals work best when using ferrules - if not the wire tends to squish out when tightening. I bought two of these for 2 different set-ups and I can change them out without any rewire in the vehicle. Would recommend.

It works, but the first one I ordered had arrived with missing set screws. After getting a replacement, everything seems to be working fine on my removable speaker box.

bought this for my sub setup in my 2004 chevy trailblazer and works great.