
Sturdy backplate but almost 1mm too late to fit the metal junction box which I had to sand down to fit the outlet. 8-32 screws are also supplied, but all metal bushings are 6-32 threaded. Clamping force is normal but not strong. I don't know why almost all "audiophiles" have a 20 amp design (NEMA 5-20r), but none of the plugs are 20 amps, but 15 (NEMA 5-15p), which worsens the contact area. Now an idea of the sound quality.

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