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Audio-Technica® AT-HA5050H Hybrid Headphone Amplifier-AT-HA5050H-AT-HA5050H

Model #: AT-HA5050H
150410
Audio-Technica
At a Glance

Audio-Technica® AT-HA5050H Hybrid Headphone Amplifier with Lundahl transformers and Nichicon capacitors

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Get to know this product.

All headphones are not the same. Each model has its own character, its own sonic signature. That’s why we’ve created a headphone amp that lets you choose from four different output impedances (two outputs each of 0.1, 33, 82 and 120 ohms) to experience a sound that best suits you and your headphones.

The AT-HA5050H is a hybrid Hi-Res Audio headphone amplifier – hybrid because it employs a pair of tubes at the preamp stage and transistors at the power amp stage. Having tubes in the preamp adds warmth and depth to the music, while the bipolar transistors provide distortion-free Class A amplification that is powerful enough to drive headphones of varying impedances without any problem. To further optimize power supply in the amplifier, each part of the amplifier is fed by individual power supply units with fast recovery diodes and regulating circuitry.

The AT-HA5050H is equipped with two analog inputs (L/R RCA line jacks and L/R balanced XLR jacks) and two digital inputs (S/PDIF digital coaxial input and USB input with selectable Asynchronous and Adaptive modes). The state-of-the-art DAC is optimized to be compatible with digital audio formats up to PCM 32-bit/384 kHz and DSD128. Additional features include classic analog VU meters with VU range selector switch, large volume control knob, and an input attenuator switch.

  • Two E88CC vacuum tubes are used in the preamp stage to achieve the warm, mellow sound you can only get from tubes
  • A pair of Toshiba bipolar power transistors provide strong, driving power and high-quality sound
  • Sifam VU meters provide precise metering with a classic feel that matches the warm, analog tone from the tubes
  • Custom-made R-Core transformer counters spikes and instability in the power line, providing consistent, high-resolution amplifier performance with distinctive hybrid sonic characteristics
  • Lundahl transformers, Nichicon electrolytic capacitors and WIMA polyester capacitors are used to provide the best sound quality possible
  • Eight headphone jacks with choice of four different output impedances (0.1, 33, 82 and 120 ohms x 2) give you control of the sonic presentation without the extra noise that might be introduced by an impedance selector switch
  • Two analog (unbalanced RCA and balanced XLR) and two digital (USB and SPDIF digital coaxial) inputs allow the amplifier to be used with a wide range of equipment
  • Includes power cable
Useful Documents
Specifications

Additional Specifications

System RequirementsComputer with a USB 2.0 port
CPUIntel Core2 CPU 2.2 GHz or equivalent
RAM32-bit OS 2 GB or more, 64-bit OS 4 GB or more
Compatible OSWindows 7, Windows 8, Windows 8.1, Mac OS X10.9
Preamplifier stagevacuum circuit
Power amplifier stageClass A bipolar transistor amplifier
Corresponding Headphone Impedance16 – 600 ohms
Maximum Output Level2,000 mW + 2,000 mW (16 ohms load), 1,000 mW + 1,000 mW (32 ohms load), 500 mW + 500 mW (64 ohms load), 62 mW + 62 mW (600 ohms load)
Rated Output (20 Hz – 20 kHz)125 mW + 125 mW (16 ohms load), 62 mW + 62 mW (32 ohms load), 31 mW + 31 mW (64 ohms load), 3.3 mW + 3.3 mW (600 ohms load)
Frequency Response (Line Input)5 Hz – 200 kHz (0, -1 dB at 32 ohms 10 mW output)
Frequency Response (XLR Input)5 Hz – 200 kHz (+0.5, -2 dB at 32 ohms 10 mW output)
Total Harmonic Distortion<=0.08% (20 Hz - 20 kHz at 32 ohms 10 mW output)
Gain14 dB (line input); 13.5 dB (XLR input)
Signal-to-noise Ratio104 dB (A-weighted)
Separation Between Channels70 dB (1 kHz at 32 ohms)
Input Connector: AnalogLine input (RCA) x 2; XLR connector x 2
DSD128 (5.6448 MHz), DSD64 (2.8224 MHz)24 – 32 bit
PCM 384 kHz, 352.8 kHz, 192 kHz, 176.4 kHz, 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz16 – 32 bit
PCM 192 kHz, 176.4 kHz, 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz16 – 32 bit
Digital coaxial (S/PDIF)1
PCM 192 kHz, 176.4 kHz, 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz16 – 24 bit
Output Connector6.3 mm (1/4") standard stereo jack (output impedance 0.1 ohms) × 2, 6.3 mm (1/4") standard stereo jack (output impedance 33 ohms) × 2, 6.3 mm (1/4") standard stereo jack (output impedance 82 ohms) × 2, 6.3 mm (1/4") standard stereo jack (output impedance 120 ohms) × 2
DA Convertor: Frequency response5 Hz – 100 kHz (0, -1.5 dB)
Total harmonic distortion<=0.0006% (20 Hz - 20 kHz)
Signal-to-noise ratio113 dB (A-weighted, 1 Vrms output)
Separation between channels110 dB (20 Hz - 20 kHz)
Input Attenuator-12 dB
VU MeterRange 0 dB, -10 dB, -20 dB, -30 dB
Power Supply100 – 120V AC or 220 – 240V AC, 50/60Hz
Power Consumption53 W (max)
Dimensions (excluding protrusions)100 mm (3.9") H × 332 mm (13.1") W × 327 mm (12.9") D
Weight11.0 kg (24.3 lbs.)
Accessories IncludedPower cable

Misc. Specs

Depth (in.)12.9
Height (in.)3.9
Width (in.)13.1
Manufacturer Warranty1 Year
Headset JackYes
Product Weight24.3
WarningProposition 65 Warning for California Residents