XPA-3
The XPA-3 Gen3 is a fully modular audio power amplifier with a high-efficiency switch mode power supply (SMPS), independent, fully discrete, dual differential, high current, short signal path Class A/B amplifier modules, Optimized Class H™ power supply topology, and microprocessor-controlled fault protection.
The XPA-3 is powered by a high efficiency, audiophile grade, Switch Mode Power Supply (SMPS).
 
Audio Specifications
The XPA-3 Gen3 features three of our High-Powered Single Channel Modules.  
 
Audio Specifications (Three High-Powered Single Channel Modules):
Power Output:
• 300 watts RMS/channel; 20 Hz – 20 kHz; THD<0.1%; 8 Ohms; one channel driven
• 550 watts RMS/channel; 20 Hz – 20 kHz; THD<0.2%; 4 Ohms; one channel driven
• 300 watts RMS/channel; THD<0.1%; 8 Ohms; two channels driven
• 490 watts RMS/channel; THD<0.1%; 4 Ohms; two channels driven
• 275 watts RMS/channel; THD<0.1%; 8 Ohms; ALL THREE channels driven
Power Bandwidth (at rated power; 4 Ohm - 8 Ohm load): 20 Hz to 20 kHz (+ / – 0.1 dB)
Broad Band Frequency Response: 5 Hz to 80 kHz +0/-2 dB
THD + noise: < 0.005%; at 100 watts RMS; 1 kHz; 8 Ohms
Signal to Noise Ratio (8 Ohm load):
• > 117 dB; ref FTC rated power; unbalanced input (A-weighted)
• > 91 dB; ref 1 watt; unbalanced input (A-weighted)
Minimum Recommended Load Impedance (per channel): 4 Ohms (one 4 Ohm load or two paralleled 8 Ohm loads).
Damping Factor (8 Ohm load): > 500
Input Sensitivity (for rated power; 8 Ohm load): 1.5 V
Gain: 29 dB
Maximum Power Consumption: 1,400 watts.