XIA Series XIA3145 XIA4225 XIA5600 Power Output: 4 ohms at < 1% THD+N: 100w x 2 RMS 150w x 2 RMS 200w x 2 RMS 2 ohms at < 1% THD+N: 145w x 2 RMS 200w x 2 RMS 250w x 2 RMS 4 ohms bridged at < 1% THD+N: 290w x 1 RMS 400w x 1 RMS 500w x 1 RMS Dynamic power: 580w 800w 1000w   User Manual User Manual User Manual   User Manual [Fr]   Preamp: Low level inputs (RCA) High level inputs (speaker) Variable input level control Selectable crossover (high pass/low pass/full range) Variable high pass crossover (XIA3145 and XIA4225 Only) Variable low pass crossover 12dB/Octave crossover slope (24dB on XIA5600) 12dB Variable bass boost General: Die-cast aluminum heatsink Illuminite circuit output (works with DUAL Illuminite speakers) PWM MOSFET power supply 2 Ohm stable stereo operation Class A/B output design Stereo/bridged simultaneous operation Bridgeable operation Direct wire connection terminals Recessed front mounted controls Thermal overload protection Auto-reset speaker short circuit protection Reverse polarity protection Bi-color LED status indicator