ATi AT52Xnc Series


Designed and built around the musical and highly efficient Hypex N-Core® amplifier technology, the AT52XNC model amplifiers deliver a robust 200 watts of power per channel

ATi AT52Xnc Series

Designed and built around the musical and highly efficient Hypex N-Core® amplifier technology, the AT52XNC model amplifiers deliver a robust 200 watts of power per channel. Each amplifier channel employs one N-Core® module to drive the loudspeaker and deliver sonic impact to the presentation. Available in 7 models from 2 to 8 channels, the AT52XNC Series offers efficient amplifier performance and value. High current toroidal transformers, a standard for all ATI power amplifiers, provide clean power and stable performance.

The AT500NC Series amplifiers have been designed to be compact and efficient while still providing high power for more demanding multi-channel listening environments. The AT52XNC model amplifiers employ Hypex N-Core® amplifier modules combined with an ATI designed custom gain stage and linear power supply. Each amplifier channel produces 200 watts of output power into 8 ohm loudspeakers and 300 watts into 4 ohm loudspeakers.

Around the back of the amplifier, each channel has an RCA unbalanced input, an XLR Balanced input, input selection switch and a pair of gold-plated, 5-way binding posts for the outputs.
There is also a 1/8” mono mini jack for +12V trigger, a gold-plated chassis ground lug, a fuse holder and an IEC 20 Amp inlet for the provided detachable power cord. The supplied power cord will have either: a NEMA 5-15 plug (Type B) for use in the USA, a BS 1363 (Type G) plug for use in the UK, or a Schuko (Type F) plug for use in the EU and the rest of the world.

ATi AT52Xnc Series specification
  • Remote Trigger – Activated from 3.3VDC to 24 VDC via a heavy-duty relay
  • Protection Circuits – Optically – coupled with full automatic reset.
  • Toroidal Transformers – 40% more efficient than EI type. Each transformer has two bi-filar windings to assure low noise and crosstalk.
  • Circuit Boards – Double-sided, FR-4 glass-epoxy, computer-grade boards are assembled in-house.
  • Soft Start Circuitry – New micro-processor controlled turn-on board first ascertains input voltage and configures transformers for 120V or 230V operation then ultra soft turn-on timers reduce in-rush current to a minimum. Multiple units can be turned on without tripping circuit breakers eliminating the need for sequencing.
  • Power Supply Capacitance – Hypex N-Core NC-500 Class D amplifier modules with ATI’s custom input buffer insures edge-of-the-art operation.
  • Power Cord – 20A IEC power inlet with detachable, 3-wire cord.
  • 7-Year Warranty – Parts and labour against defects in parts or workmanship.
  • Numbers of Channels2-8
  • FTC Full Bandwidth Power Output@ 8Ω (Watts RMS) – 200
  • FTC Full Bandwidth Power Output@ 4Ω (Watts RMS) – 300
  • Input Sensitivity for Full Rated FTC Output Power – 8Ω – 1.5 Volts
  • Frequency Response – +0,-0.5dB 20Hz – 20kHz
  • Phase Response – +5° to -15°, 20Hz – 20kHz @ 1W
  • Signal-to-Noise Ratio (Ref FTC Rated Power, A-Wtd) – >120dB
  • Total Harmonic Distortion + Noise (20Hz – 20kHz) – <0.02%
  • Intermodulation Distortion – <0.03%
  • Recommended Load Impedance – Safe for all types of loads. Rated for 4Ω to 16Ω.
  • Power Bandwidth FTC – +0,-3 dB 20Hz – 40kHz
  • Damping Factor – >800
  • Crosstalk – >90dB
  • Voltage Gain (RCA Inputs) – 28.5dB ±0.2dB
  • Voltage Gain (XLR Inputs) – 28.5dB ±0.2dB
  • Slew Rate – >60V/μS
  • Input Impedance – 20kΩ
  • Output DC Offset – Less Than ±25mV
  • Power Requirements – Universal Auto-Select AC Voltage Ranges: 90-132 VAC or 200-260VAC – 1x 20 Amp Circuit ≤1W (120 VAC)
  • Power Consumption (Standby) – ≤0.5W (240 VAC)
  • Power Consumption (Idle/Sleep)
    AT522NC: 30W/20W

    AT523NC: 35W/20W
    AT524NC: 40W/20W
    AT525NC: 55W/30W
    AT526NC: 60W/30W
    AT527NC: 70W/35W
    AT528NC: 80W/40W

  • Chassis Dimensions (W x H x D) millimetres – AT522NC-AT524NC: 432 x 153 x 270, AT525NC-AT528NC: 432 x 153 x 394

Additional information


AT522nc, AT523nc, AT524nc, AT524nc (ex-demo), AT525nc, AT526nc, AT527nc, AT528nc



AMPLIFIER TECHNOLOGIES INC At ATI, they make heavy-duty amplifiers with proven circuitry, meticulous assembly and rigorous testing designed to deliver state-of-the-art audio for years, all designed by them and built in their own US factory. It’s a simple story, American amplifiers built by American people. They hope you enjoy listening.


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