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- Circuit Topology
- - 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.
- - 500 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; 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
- - (which equals 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.Input Impedance:
- - 33 kOhms (balanced).
- - 23.5 kOhms (unbalanced).Input And Output Connections
- - Input Connections (High-Powered Single Channel Modules):
- Unbalanced (RCA); balanced (XLR); one each per channel, independently selectable.
- - Input Connections (Stereo Modules):
- 2 Unbalanced (RCA); 2 balanced (XLR); two per channel, independently 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
- - Between 100 VAC and 250 VAC @ 50 / 60 Hz (automatically detected).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 to 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.Protection
- - The XPA Gen3 is protected against excessive operating temperature, shorted speaker connections, ground faults, and other common fault conditions.Mechanical
- Dimensions:
- - 17” wide x 8” high x 19” deep (unboxed; including feet).
- - 17” wide x 7” high x 19” deep (unboxed; without feet).
- - 24-1/2” wide x 12” high x 24-3/4” deep (boxed).Weight:
- - 39 lbs (unboxed).
- - 44 lbs (boxed).Tel. : 0999163959 พี่อาร์ต
- Line @ : @apacousticart
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