2 channels of internal amplification (20W per channel at 70.7V), 2 separate analog masking Generators, analog white and pink noise Generators, auxiliary input for BGM with EQ and limiter, mic/ line input for paging with EQ and limiter, speech enhanced privacy mode (adjustable plus or minus 12 dB), assignable balanced line output, internal DSP parameters EQ, Hi and along pass filters, limiter with intuitive software control, push here diagnostic (phd), automatic diagnostic system test, Single zone sound masking coverage up to 7000 sq. '.