The connectors are high-quality. I have "married" with the in-acoustics Excellent 2x6mm. The combo consists of Denon AVR3805, Subwoofer Infinity HPS250 and Quadral Pico. As a reference sample was "spunky" by Bob James. Unique extension of the sound image, the dynamic, transparent highs. The Allen screws are stable, the accompanying Allen key makes Delivered. Very strong buy recommendation.