It is a high-quality system selector to taste the thrill of such audio. To avoid noise through the ground loop adopts audio quality design grounding switch each circuit. Adopted (99.99997% copper) wire 6N information loss is less pure in the wiring goods, for example, use a gold plated high purity to the terminal, consists of a grade that is comparable to high-end separate amplifier. There is no compromise in consideration of the sound quality.

One stereo amplifier to three different sets of speaker terminals; 1, 2 or 3 - only one pair can be selected at any time

This can also work in reverse, allowing you to easily switch between multiple stereo amplifiers into one pair of speakers.