MCM Custom Audio Model 50-2204 Speaker Distribution Panel. Allows up to eight pairs of speakers to attach to a single stereo amplifier output. This device does not provide impedance protection to the amplifier. Must use impedance matching volume controls with this device. Maximum power capacity is 200 Watts RMS per channel. Maximum wire size is 14 AWG. Dimensions are 2"H x 2.25"W x 10.5"L.