Teac HA-501
Headphone Amplifier

OUR PART #  HA-501

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The TEAC HA-501 is a dual monaural headphone amplifier designed to maximize headphone potential. Part of the 501 series, this Class-A amplifier delivers superior sound quality, a sleek, modern look, all encased in a rugged but compact design. The HA-501 supplies regular headphone listeners with quality sound, features and adaptable options that cannot be found in regular amplifiers. Pair it with your favorite headphones the same way you would a normal amp with favored speakers and take advantage of DC Servo Technology, Switchable damping Factors, High Output Power, a large Toroidal-Core Power Transformer and relax to your favorite music or radio broadcast.

TEAC HA-501 Features:

  • Full analog circuit design
  • Discrete design Class-A Amplifier
  • Dual Monaural design
  • Active DC Servo technology
  • Dual MUSES8920 Op-amps for Left and Right channels
  • 1,400 mW and 1,400 mW Output Power (at 32 ohms)
  • Damping Factor Selector
  • Over-sized Toroidal-core Power Transformer
  • Full-metal Jacket, Rigid construction
  • A pair of XLR connectors by Neutrik for balanced audioinput
  • (2) pair of RCA pin connectors for unbalanced audioinput on rear (Gold-plated)
  • (1) stereo audio input on front (1/8" or 3.5 mm StereoMini Jack)
  • (1) stereo headphone out on front (1/4" or 6.35 mmStereo Jack)
  • (1) pair of RCA pin connectors for stereo unbalancedaudio output (Gold-plated)
  • Switchable output line level (Fixed, Variable, Off)
  • +/- 15 V high voltage operation current achieved highS/N ratio
  • Precisely machined aluminum knobs (Volume, InputSelector, Damping Factor Selector)
  • Auto-muting when headphone plug is disconnected
  • A 3-polar AC socket with a detachable AC cable

TEAC HA-501 Specifications:

  • Audio Input
    • Balanced Input (Rear): (1) pair
      • Connectors: XLR-3-31 (1:GND, 2:HOT, 3:COLD)
      • Impedance: 20 k ohms
    • Sensitivity: 2 Vrms
    • Line Input (Rear): (2) pairs (LINE1, LINE2)
    • Connectors: RCA Pin Jack (Gold-plated)
    • Impedance: 10 k ohms
    • Sensitivity: 1 Vrms
    • Auxiliary Input (Front, AUX)
    • Connectors: 1/8" (3.5mm) Stereo Mini Jack
    • Impedance: 13 k ohms
    • Sensitivity: 0.5 Vrms
  • Audio Output
    • Headphone Output (Front)
      • Connectors: 1/4" (6.35mm) Stereo Jack
      • Supported Headphone Impedance: 16 ohms - 600 ohms
      • Max Output Level:
        • 1,400 mW and 1,400 mW (at 32 ohms)
        • 135 mW and 135 mW (at 600 ohms)
      • Rated Output Level:
        • 600 mW and 600 mW (at 32 ohms)
        • 34 mW and 34 mW (at 600 ohms)
      • THD:
        • 0.002% (Input 1V, Output 1V, at 32 ohms)
        • 0.01% (Input 1V, Output 600 mW, at 32 ohms)
      • S/N Ratio: 110 dB (RCA Input, 2 Vrms 1 kHz, A-weighted)
    • Frequency Response:
      • 2 Hz – 100 kHz (+0 dB / -3 dB)
      • 10Hz – 100kHz (+/-3dB)
  • Line Output (Rear)  
    • Connectors: RCA Pin Jack (Gold-plated)
    • Impedance: 100 ohms
    • Output Level: 316 mV
    • Output Level Selector: Fixed, Variable, Off
  • Operation Power:
    • 120 V AC, 60 Hz (US/Canada)
    • 230 V AC 50 Hz (UK/Europe)
  • Power Consumption: 22 W (Standby: 0W)
  • Operating Temerature: +5°C to +35°C (+41°F to +95°F)
  • Operating Humidity: 5% to 85% (no condensation)
  • Storage Temerature: -20°C to +55°C
  • Overall Dimensions (W x H x D): 290 x 81.2 x 244 mm(11.4 x 3.2 x 9.6 in)
  • Net Weight: 4.1kg, 9 lbs

Teac HA-501
Headphone Amplifier

OUR PART #  HA-501

Product Information:

The TEAC HA-501 is a dual monaural headphone amplifier designed to maximize headphone potential. Part of the 501 series, this Class-A amplifier delivers superior sound quality, a sleek, modern look, all encased in a rugged but compact design. The HA-501 supplies regular headphone listeners with quality sound, features and adaptable options that cannot be found in regular amplifiers. Pair it with your favorite headphones the same way you would a normal amp with favored speakers and take advantage of DC Servo Technology, Switchable damping Factors, High Output Power, a large Toroidal-Core Power Transformer and relax to your favorite music or radio broadcast.

TEAC HA-501 Features:

  • Full analog circuit design
  • Discrete design Class-A Amplifier
  • Dual Monaural design
  • Active DC Servo technology
  • Dual MUSES8920 Op-amps for Left and Right channels
  • 1,400 mW and 1,400 mW Output Power (at 32 ohms)
  • Damping Factor Selector
  • Over-sized Toroidal-core Power Transformer
  • Full-metal Jacket, Rigid construction
  • A pair of XLR connectors by Neutrik for balanced audioinput
  • (2) pair of RCA pin connectors for unbalanced audioinput on rear (Gold-plated)
  • (1) stereo audio input on front (1/8" or 3.5 mm StereoMini Jack)
  • (1) stereo headphone out on front (1/4" or 6.35 mmStereo Jack)
  • (1) pair of RCA pin connectors for stereo unbalancedaudio output (Gold-plated)
  • Switchable output line level (Fixed, Variable, Off)
  • +/- 15 V high voltage operation current achieved highS/N ratio
  • Precisely machined aluminum knobs (Volume, InputSelector, Damping Factor Selector)
  • Auto-muting when headphone plug is disconnected
  • A 3-polar AC socket with a detachable AC cable

TEAC HA-501 Specifications:

  • Audio Input
    • Balanced Input (Rear): (1) pair
      • Connectors: XLR-3-31 (1:GND, 2:HOT, 3:COLD)
      • Impedance: 20 k ohms
    • Sensitivity: 2 Vrms
    • Line Input (Rear): (2) pairs (LINE1, LINE2)
    • Connectors: RCA Pin Jack (Gold-plated)
    • Impedance: 10 k ohms
    • Sensitivity: 1 Vrms
    • Auxiliary Input (Front, AUX)
    • Connectors: 1/8" (3.5mm) Stereo Mini Jack
    • Impedance: 13 k ohms
    • Sensitivity: 0.5 Vrms
  • Audio Output
    • Headphone Output (Front)
      • Connectors: 1/4" (6.35mm) Stereo Jack
      • Supported Headphone Impedance: 16 ohms - 600 ohms
      • Max Output Level:
        • 1,400 mW and 1,400 mW (at 32 ohms)
        • 135 mW and 135 mW (at 600 ohms)
      • Rated Output Level:
        • 600 mW and 600 mW (at 32 ohms)
        • 34 mW and 34 mW (at 600 ohms)
      • THD:
        • 0.002% (Input 1V, Output 1V, at 32 ohms)
        • 0.01% (Input 1V, Output 600 mW, at 32 ohms)
      • S/N Ratio: 110 dB (RCA Input, 2 Vrms 1 kHz, A-weighted)
    • Frequency Response:
      • 2 Hz – 100 kHz (+0 dB / -3 dB)
      • 10Hz – 100kHz (+/-3dB)
  • Line Output (Rear)  
    • Connectors: RCA Pin Jack (Gold-plated)
    • Impedance: 100 ohms
    • Output Level: 316 mV
    • Output Level Selector: Fixed, Variable, Off
  • Operation Power:
    • 120 V AC, 60 Hz (US/Canada)
    • 230 V AC 50 Hz (UK/Europe)
  • Power Consumption: 22 W (Standby: 0W)
  • Operating Temerature: +5°C to +35°C (+41°F to +95°F)
  • Operating Humidity: 5% to 85% (no condensation)
  • Storage Temerature: -20°C to +55°C
  • Overall Dimensions (W x H x D): 290 x 81.2 x 244 mm(11.4 x 3.2 x 9.6 in)
  • Net Weight: 4.1kg, 9 lbs
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