• Audiophile grade Class A/B output stages and a massive silent switch mode power supply.
• Monoblock amplifier for the ultimate in performance and convenience.
• A great option for difficult-to-drive speakers.
• Buy one to power your centre channel or position one next to each speaker.
The power amplifier performs the simple but critical job of boosting the output signals from each channel of your stereo preamp or surround sound processor to the level necessary to drive your loudspeakers. While this may seem trivial, a really good power amp is essential to having a great audio system, because any flaws in the performance of your power amp are going to limit the performance of your entire system. Every amplifier in the new Third Generation XPA series was carefully designed to deliver superb technical performance, unsurpassed sound quality, and an exceptionally accurate and dynamic rendition of all types of music, thus ensuring that your entire system will sound its absolute best. Each XPA amplifier is modular and can be customized to provide exactly the power and number of channels you need today and expanded later if your needs change; multiple matching chassis enables you to add even more channels, or more power, for a nearly endless variety of options.
Size and Weight
Dimensions (WxHxD) 213mm x 194mm x 483mm
Weight 9.75kg
Circuit Topology
Circuit Topology The XPA HC-1 is a monoblock audio power amplifier, with a fully discrete, dual differential, high current, short signal path Class A/B amplifier section, Optimized Class H™ power supply topology, and microprocessor-controlled fault protection. The XPA HC-1 is powered by a high efficiency, audiophile grade, Switch Mode Power Supply (SMPS).
Audio Specifications
Power Output 300 watts RMS; 20 Hz – 20 kHz; THD <0.1%; 8 Ohms
600 watts RMS; 20 Hz – 20 kHz; THD <0.2%; 4 Ohms
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 <0.015%; at 100 watts RMS; 1 kHz; 8 Ohms
Signal to Noise Ratio (8 Ohm load) >120 dB; ref FTC rated power; unbalanced input (A-weighted) > 95 dB; ref 1 watt; unbalanced input (A-weighted)
Minimum Recommended Load Impedance (per channel) 4 Ohms
Damping Factor (8 Ohm load) >500
Input Sensitivity (for rated power; 8 Ohm load) 1.7 V
Gain> 29 dB
Maximum Power Consumption 2,300 watts
Input Impedance 33 kOhms (balanced)
23.5 kOhms (unbalanced)
Input and Output Connections
Input Connections Unbalanced (RCA); balanced (XLR); one each, user selectable
Speaker Output Connections Audiophile grade, gold plated, 5-way binding posts
Trigger Trigger Input: 5 – 12 V (AC or DC); <10 mA input current required
Trigger Output: 12 VDC; can drive any load up to 120 mA
Power Requirements
Power Between 100 VAC and 250 VAC @ 50 / 60 Hz (automatically detected)
Front Panel Controls and Indicators
Front Panel Controls and Indicators
Standby Push button (halo ring changes color to indicate Standby or On)
Status LEDs One per channel; blue
Status LEDs change to red Indicate a fault condition
Rear Panel Controls
AC Power switch Rocker switch (switches AC main power)
Status LEDs switch Disables front panel Status LEDs and dims Standby button halo
Input selector switches (one per channel) Metal toggle switches; select between balanced and unbalanced inputs
Circuit Breaker Press button to reset circuit breaker
Mechanical
Protection The XPA HC-1 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.
