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Audio-Technica AT-BHA100 Balanced Headphone Amplifier

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  • $ 999
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The AT-BHA100 balanced headphone amplifier is designed to deliver unmatched audio quality from high-resolution sound sources, and is ideal for use with hi-fi headphones such as the ATH-ADX5000, ATH-MSR7b, and those in the ATH-AW Series. This compact desktop unit is compatible with Direct Stream Digital (DSD) and other high-definition formats to reproduce every detail of the original recording.

The AT-BHA100 features a hybrid system of vacuum tubes and power transistors to enhance the beauty and warmth of amplified sound. It employs four completely independent amplifier circuits, a high-quality New Japan Radio MUSES8820 operational amplifier, and specially designed low-noise relay switches to emphasize the depth and warmth of vacuum-tube sound. A four-layer board structure with high-quality audio-grade components from Nichicon, WIMA, and Shinyei Capacitor ensures rich, natural audio.

FEATURES

  • Hybrid system with vacuum tubes and power transistors enhances the beauty and warmth of amplified sound
  • Four independent JJ Electronic ECC83S preamp vacuum tubes deliver superb depth and sense of presence in the amplified sound
  • Four power transistors (one for each powered amp circuit) are capable of high-power performance to handle the wide dynamic range of sound sources with high sampling rates
  • High-quality New Japan Radio MUSES8820 operational amplifier highlights the depth and warmth of the vacuum-tube sound
  • Specially designed low-noise relay switches offer excellent dynamics that emphasize the spaciousness and vibrancy of the sound
  • Nichicon chemical capacitors contribute to the low-frequency characteristics of the audio, leading to powerful bass
  • Low/high gain switch offers support for a wide range of headphones with varying sensitivities and impedances
  • Two balanced outputs – 4.4 mm TRRS jack and 4-pin XLR terminal – are compatible with a wide range of balanced headphones
  • Two 6.3 mm (1/4") outputs can be used simultaneously with independent volume controls
  • RCA line-through output allows for switching between headphones and powered speakers

TECHNICAL SPECS

  • Corresponding Headphone Impedance: 16 – 600 ohms
  • Instantaneous Maximum Output Level
    • 6.3 mm headphone output (10%, 1 kHz)
      • 680 mW + 680 mW (16 ohms load)
      • 320 mW + 320 mW (32 ohms load)
      • 240 mW + 240 mW (64 ohms load)
      • 30 mW + 30 mW (600 ohms load)
    • Balanced output (10%, 1 kHz)
      • 1,500 mW + 1,500 mW (16 ohms load)
      • 1,200 mW + 1,200 mW (32 ohms load)
      • 800 mW + 800 mW (64 ohms load)
      • 120 mW + 120 mW (600 ohms load)
  • Frequency Response: Line input: 10 Hz – 100 kHz (0, -3 dB at 32 ohms 10 mW output); Balanced input: 10 Hz – 100 kHz (+0.5, -3 dB at 32 ohms 10 mW output)
  • Total Harmomic Distortion: <=0.25% (20 Hz - 20 kHz at 32 ohms and 1 mW output)
  • Gain 6.3 mm headphone output: 10 dB (high gain), 1.5 dB (low gain) Balanced output: 16 dB (high gain), 7 dB (low gain)
  • Noise: 6.3 mm headphone output: -100 dBv (A-weighted high gain), -103 dBv (A-weighted low gain) Balanced output: -92 dBv (A-weighted high gain), -95 dBv (A-weighted low gain)
  • Analog Input Connector
    • Line input (pin jack) x 2
    • Balanced input (XLR combo connector) x 2
  • Output Terminals
    • 6.3 mm stereo headphone output × 2
    • CLR 4-pin balanced stereo headphone output
    • 4.4 mm balanced stereo headphone output
    • Line output (pin jack) x 2
  • Power Supply: 100 – 120V AC, 50/60 Hz, 15V DC/2.4 A (AC adapter provided)
  • Power Consumption: 25 W (max)
  • Dimensions: 44 mm (1.73") H × 210 mm (8.27") W × 266 mm (10.47") D (excluding protrusions)

WARNING: California Residents - Proposition 65. This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

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