Extron announced yesterday that it’s started to ship the XTRA Series XPA 4002-70V two channel power amplifier. This 1U, convection cooled amplifier delivers 400 watts rms per channel for 70 volt distributed speakers. It uses a new advanced Class D amplifier design using Extron’s patented CDRS – Class D Ripple Suppression technology that the company says provides a smooth, clean audio waveform and an improvement in signal fidelity over conventional Class D amplifiers. The XPA 4002-70V is half the size of comparable amplifiers, conserving rack space and weighing only 9 lbs (4 kg). The high efficiency design generates very little heat and allows the amplifier to be convection cooled.
The XPA 4002-70V includes an auto power-down feature that automatically places the amplifier into standby after a period of inactivity, and consumes 30 watts or less when idle and less than 1 watt in standby mode. It also has an ultra low inrush current draw to prevent power circuit overload that occurs when multiple amplifiers are switched on simultaneously. This feature eliminates the need for power sequencing in systems with multiple amplifiers in large centralized equipment racks, and prevents other equipment from experiencing power interruption from associated power surges. Additionally, the XPA 4002-70V amplifier features very low thermal dissipation under full load, which keeps racks and equipment cabinets cool.
To see all the specs, go here: http://www.extron.com/product/product.aspx?id=xpa4002&s=0