Russound

Russound SS-4.2 4 Pair Single Source Impedance Matching Speaker Selector.

Russound

Russound RSAB32 AUTOMATIC A/B SPEAKER SELECTOR

Russound

Russound SDB-2.1 2 Pair Dual Source Speaker Selectors with Volume Control

Russound

Russound PRO-8 HP 8 Pair Impedance Matching Speaker Selector

Russound

Russound PRO-12 HP - 12 Pair, Impedance Matching Speaker Selector 200W

Russound

Russound AB-2.2 Table Top, Dual Source Speaker Selector