Sonance PowerZone 1004 4-Channel Installation Amplifier 1U | UniversalThe Sonance PowerZone 1004 is a 4 channel non networked Class D installation amplifier delivering high output performance without the complexity of a network DSP platform. Each of the four output channels can be independently configured for Lo Z (4 16 ohm) or Hi Z (70V 100V) operation, letting one chassis simultaneously drive low impedance loudspeakers and constant voltage distribution lines from the same rack space. The 1004 occupies a compact 1U