Speco IMP80D 80W Impedance Matching Volume Control w/ 3 color plate & knob

Includes three knob/plate color variations: white, ivory and almond High-quality auto-former design Supports 2 to 16 speaker pairs Switchable impedance matching for 2, 4, 8 or 16 pairs of 8 Ohm speakers Soft touch 12-step rotary attenuation Frequency response: 20Hz to 20kHz Removable terminal blocks accept up to 14-gauge wire Mounting requirements: fits all single-gang backless P-rings or 18 cubic inch min. electrical work box Mounting dimensions: 1.63″ W x 2.85″ H x 2.35″ D **Products are in compliance with NDAA Section 889 Part B Guidelines