The RMB-1506 is perfect for less elaborate multizone audio systems and can be mated with our surround receiver or our preamp/processors to add music throughout three additional living areas or “zones” of your home. A buffered link output allows you to link additional amplifiers for larger multizone applications. As with all Rotel custom amplifiers it includes the most wanted custom installation features such as front panel attenuation control, input linking, 12-volt trigger, buffered link output, five-way binding posts and an IEC detachable power cord. Intermodulation Distortion (60Hz:7kHz, 4:1) <0.03% Damping Factor >200 Speaker Impedance 4Ω minimum Input Sensitivity 1V Input Impedance 20kΩ