OUR PART # IMP-80D
Includes three knob/plate color variations: white, ivory and almond. High quality auto-former design - 2 to 16 speaker pairs. Switchable impendance 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 19 cubic inch minimum electrical work box. Mounting dimensions (WxHxD): 1.63"" x 2.85"" x 2.35"" (42mm x 73mm x 60mm).