XPA Ultra Power AmplifiersGet More Flexible with Switchable Bridging Extron is excited to announce the immediate availability of the XPA U 1004 SB and XPA U 2002 SB four and two channel ENERGY STAR qualified audio power amplifiers with flexible channel pairs that can drive 8 ohm, 4 ohm, 70 volt, or 100 volt loads. The individually bridgeable channel pairs of the XPA U 1004 SB can deliver two 100 watt channels into low impedance systems or one 200 watt channel into low or high impedance systems, while the XPA U 2002 SB delivers 200 watts and 400 watts respectively. A rotary switch on the rear panel of the amplifier makes it quick and easy to select the desired output mode. The convection cooled, plenum rated enclosures do not require empty rack spaces for ventilation and include rack mount ...