ATI AT541NC Amplifier – Hybrid Class D Series 1 Channel 500 Watts/Channel MONO BLOCK

$2,495.00 $2,195.00

MONO BLOCK – 500 Watts/Channel

Amplifier Technologies, Inc., the prolific manufacturer of many of the high end audio’s best amplifiers today added a new series of amplifiers. The ATI AT541NC amp and the entire AT540NC amplifier series use Hypex N-Core Class D output modules with ATI designed input buffers and linear power supplies. These amplifiers use two N-Core modules per channel in a differential bridged output configuration delivering 500W RMS per channel into 8 ohms and 900W RMS into 4 ohms. The AT540NC amplifiers are available in Mono Block and 2, 3 and 4 channel configurations.

The ATI AT 541NC amplifier breaks new ground in other ways. The ATI AT 541NC amp is the first ATI amplifier to use a micro-processor control for turn-on delay and feature automatic AC power recognition and configuration. The amplifiers not only recognize whether they are connected up to 117V or 230V nominal power, but they automatically self-configure. The amplifiers also incorporate a new and novel “sleep” circuit. When the amplifier receives no input signal for a period of 10 minutes, power is removed from the output modules and a front-panel LED begins to flash. As soon as an input signal is detected on any channel, normal playback operation resumes instantaneously.

Per Morris Kessler, ATI’s president and chief engineer, “We are excited to offer amplifiers with ATI’s legendary high performance and reliability in designs that reduce amplifier weight by up to 50%.”

With rated distortion below 0.05% and signal-to-noise ratio of 123 dB (minimum, referenced to rated output), each amplifier in the series is capable of playing back the full dynamic range available on today’s lossless recordings.

Made In The U.S.A.

The U.S. has always led the world in power amplifier technology, and still does. All ATI products are manufactured in Southern California in a modern 50,000 square-foot facility to exacting design specifications and rigid quality control. ATI manufactures all toroid transformers and assembles all circuit boards in-house. We use computerized Audio Precision test equipment to test each stand-alone amplifier module (DMC2) as well as the completed unit. This control and scrutiny of every phase of manufacturing guarantees unit-to-unit repeatability and a lifetime of accurate sound reproduction.

Other Available Hybrid Class D ATI Models:

FEATURES:

  • Remote Trigger – Activated from 3.3VDC to 24 VDC via a heavy-duty relay
  • Protection Circuits – Optically – coupled with full automatic reset
  • Toroid Transformers – 40% more efficient than EI type. Each transformer has two bi-filar windings to assure low noise and cross-talk
  • 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
  • Amplifier Output – 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 labor against defects in parts or workmanship

 

SPECIFICATIONS:

Series
AT54XNC

Number of Channels
2 to 4

EIA 1kHz Output Power at 8 Ohms
650 Watts

EIA 1kHz Output Power at 4 Ohms
1000 Watts

FTC Full Bandwidth Output Power at 8 Ohms
500 Watts

FTC Full Bandwidth Output Power at 4 Ohms
900 Watts

Input Sensitivity for Full Rated Power
2.5 Volts

Frequency Response at Rated Output
20Hz to 20kHz +0, -.5dB

Phase Response
+5 to -15 degrees from 20Hz to 20kHz at 1 watt

Signal-to-Noise Ratio “A-Weighted”
Greater than 123dB below rated FTC Full Bandwidth Output

Total Harmonic Distortion (THD)
Less than 0.02% at full rated FTC power

Intermodulation Distortion (IMD)
Less than 0.03% at full rated FTC power

Load Impedance
Safe with all types of loads. Rated for 4 to 16 ohms

Power Bandwidth FTC
+0, -3 db from 20 Hz to 40 kHz

Damping Factor
Greater than 5000 from 10 Hz to 400 Hz

Crosstalk
Greater than 100 dB from 20 Hz to 20 kHz

Voltage Gain through RCA
27.8dB ±0.2 dB

Voltage Gain through XLR
27.8dB ±0.2 dB

Slew Rate
>60 V/µs

Input Impedance
Nominally 47 KOhms

Remote Trigger Voltage
3.3 to 24 Volts DC at 5 mA or greater

DC Output Offset
Less than ±10 mV

Power Requirements
120 VAC / 230 VAC (other voltages available on export models)

Chassis Dimensions (W x H x D) Inches
17 x 5 3/4 x 10 5/8 (2 Channels)
17 x 5 3/4 x 15 1/2 (3 or 4 Channels)

Net Weight (lbs/kg) Model Dependent
39 to 66 / 18 – 30

Shipping Weight (lbs/kg) Model Dependent
49 to 76 / 23 to 35

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