500W mono amplifier module with integrated DSP.
Ideal for active subwoofers or single-way monitors
Ncore® Class D technology with 92% efficiency
DSP with 15 biquads, 3 presets, auto-off, and thermal protection
Frequency response: 10 Hz – 50 kHz | SNR: 124 dB | THD+N: 0.002%
Inputs: RCA and XLR | USB for configuration (not audio)
Requires loading of DSP filter via Hypex Filter Design (Windows only)
Ventilated chassis with active thermal control
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Hypex FA501 FusionAmp. Mono Plate Amplifier with 500 W Output and DSP
Overview
The Hypex FA501 is a high-power, single-channel plate amplifier with integrated DSP and 500 W output at 4 Ω. It is ideal for high-performance active subwoofers or full-range single-driver monitors. Combining Ncore® Class D amplification, a powerful DSP, and an efficient SMPS, the FA501 delivers audiophile-grade precision, dynamic range, and ultra-low distortion.
Key Features
1 × 500 W Ncore® amplifier module.
Built-in high-resolution DSP and DAC.
Transparent, neutral sound with extremely low THD.
All-in-one solution: amplifier, power supply, and DSP in one module.
Balanced (XLR) and unbalanced (RCA) analog inputs.
Fully configurable via Hypex Filter Design (HFD) software.
Remote control compatibility (optional Fusion Remote Kit).
Vented chassis with active thermal management.
Important:
DSP comes with no default filter loaded. A filter must be configured via Hypex Filter Design (HFD) software before the amplifier outputs signal.
Technical specifications
Power Output
1 × 500 W @ 4 Ω
1 × 270 W @ 8 Ω
1 × 400 W @ 2 Ω
Minimum Load Impedance: 2 Ω
Amplifier Specifications
Amplifier Class: Class D
Topology: Ncore®
THD+N: 0.0020% (10–20,000 Hz @ 0.5 × rated power)
SNR: 124 dB
Efficiency: 92% at full load
Frequency Response: 10 Hz – 50,000 Hz
Input & Connectivity
Input Impedance:
54 kΩ (RCA)
44 kΩ (XLR, differential)
2.2 MΩ (XLR, common mode)
Input Sensitivity: 2.35 Vrms for rated output
Inputs: 1 × RCA, 1 × XLR
Analog Outputs: 1 × XLR (pass-through)
USB Port: Configuration only (not for audio playback)
DSP & Control Features
Integrated DAC (up to 192 kHz; optical limited to 96 kHz)
15 biquads per channel
3 filter presets (selectable)
Signal detection and auto power-off
Clip protection, overtemperature, and filter integrity protection
DSP configurable via Hypex Filter Design (HFD)
Compatible with Windows (not Mac)
Optional infrared remote control support
Power & Mechanical
Mains Input: 200–240 VAC ±10%
Connector: IEC C14
Current Limit: 27 A
Undervoltage/Overvoltage Protection: Yes
Dimensions (H × W × D): 280 × 135 × 55 mm
Mounting Cutout: 256 × 111 mm
Box Contents
1 × FA501 FusionAmp module
1 × Printed User Manual
1 × Speaker connection cable set
1 × C13 Power Cable (EU or UK version)