Parasound has expanded its ZoneMaster custom installation amplifier line with the introduction of three new models. The six-channel Parasound ZoneMaster 650, four-channel ZoneMaster 450, and two-channel ZoneMaster 250 use the same 50-watt bridgeable amplifier circuits, offer the same quality sound, and deliver the same high levels of dependability as the company’s ZoneMaster 1250 Universal 12-channel amplifier.

Every ZoneMaster model uses the same Parasound-designed discrete Class AB input stage and specially selected Class D power stage to achieve sonic performance consistent with Parasound’s audiophile heritage, while meeting industry demand for absolute dependability. Each 2-ohm stable, high-current channel pair is rated at 50 watts per channel into 8 ohms, and 90 watts into 4 ohms; bridged mode can deliver 160 watts RMS into 8 ohms and 200 watts RMS into 4 ohms. Each channel pair has an independent oversized power supply for exceptional high-current capabilities.

This combination of high power and low-impedance stability enables each channel to drive multiple speakers. Detachable Phoenix-style speaker connectors accept up to 12-gauge wire, with separate connections for two speakers per channel; up to 24 in the case of the ZoneMaster 1250. The three new models are 1U (1 rack space) high and the 1250 is 2U high. Models 250 and 450 are one-half rack space wide, while the 650 and 1250 are full rack width.

The Parasound ZoneMaster Model 650 lists for $1,350, the ZoneMaster 450 and 250 will be delivered in November with a list of $795 and $475, respectively. All the tech specs are here.