Parasound ZM4 4 Channel Amplifier Arcam Channel separation: >20 dB at

Channel separation: >20 dB at 1 kHz

20 Hz - 20 kHz @ 8 Ω 400 watts RMS x 3

and only contains a single power supply and amplifier channel

Of all the reviews I have ever had to write

as well as the adaptability

Parasound ZM4 4 Channel Amplifier Arcam Channel separation: >20 dB atBuilding on the solid foundations laid by its predecessor the ZM450, the new Parasound ZoneMaster ZM4 punches in with increased size, power and connectivity! Branching into a bigger frame is the first noticeable difference of the new ZM4 (ZM450 was housed in a half rack width chassis), as it now is a full width 19" 1U rack mount amplifier. This increased footprint is not just aesthetic either, this increased size comes with more bang for buck too in