CXA125 power amplifier has been designed to provide configurable, consistent and reliable high performance audio power amplification for residential, commercial and entertainment applications.

CXA125 amplifiers are half rack width, 1U format power amplifiers that can drive both conventional low impedance (Lo-Z, 4Ω to 16Ω) loudspeakers and high impedance (Hi-Z, 70V/100V) transformer coupled loudspeakers. They provide four analogue inputs, one stereo S/PDIF digital input, and either two or four outputs (Lo-Z mode), or one or two outputs (Hi-Z mode). CXA amplifiers also incorporate automatic power sharing technology that enables power to be shared proportionately as required between pairs of outputs in Lo-Z mode. CXA amplifier model output channel counts and power outputs are as follows:

Mode Channels Max Rated Output per Channel

Lo-Z Two 60 Watts

Hi-Z One 125 Watts

Product Features

• Total System Power: 125 W
• Output Power @ 4/8Ω: 2 x 60 W
• Output Power @ 70/100V: 1 x 125 W
• Automatic power sharing technology
• Drives both conventional low impedance (Lo-Z, 4Ω to 16Ω) loudspeakers and high impedance (Hi-Z, 70V/100V) transformer coupled loudspeakers
• Half rack width, 1U

Product Specifications

• Total System Power: 125 W
• Output Power @ 4/8Ω: 2 x 60 W
• Output Power @ 70/100V: 1 x 125 W
• Powershare (up to) Across all channels: 1 x 125 W
• Power Consumption: 75W
• Dimensions: 44 x 220 x 213 mm (1.7 x 8.7 x 8.4 in)
• Weight: 2kg (4.4 lbs)
• Output Circuitry: UMAC™ Class D - full bandwidth PWM modulator with ultra-low distortion
• Output Voltage: 70Vp / 140Vpp (unloaded) // Bridged 140Vp / 280 Vpp (unloaded)
• Signal To Noise-Ratio: >106dB (A-weighted, 20Hz-20kHz, 8Ω load)
• THD+N (typical): < 0.05% (20Hz-20kHz, 8Ω load, 3dB below rated power)
• Frequency Response: 20Hz-20kHz (+0/-0.25dB (8Ω load, 3dB below rated power)
• Protection Circuits: Short circuit -, DC -, Undervoltage -, Temperature - and Overload protection
• Power Supply: UREC™ universal mains switch mode power supply with Power Factor Correction (PFC) and standby converter
• Operating temperature: 0-40°C
• Operating Voltage/Frequency: Universal Mains, 100V-240V, 50Hz-60Hz
• Standby Consumption: < 0.5W
• Power Ratings: 1% THD @ 120Vac and 230Vac

What's in the Box?

• 2 x Rack ears
• 1 x ½ rack plate extension
• 2 x ½ rack mounting
• 2 x Rear supports