News :: Press Releases

2012-10-29 - TEAC Announces HA-501 Headphone Amplifier



Fully Analog Dual Monaural Headphone Amplifier


MONTEBELLO, CA (Sep 4, 2012) – TEAC America is a subsidiary of the premier Japanese electronics manufacturer. 

TEAC America has announced the release of their new Reference 501 Series and arriving first is the HA-501, Fully Analog Dual-monaural Headphone Amplifier. The Reference 501 series is made up of 4 ruggedly built, high-class, compact and timelessly designed units that all deliver superior sound. All aspects that one would need in an audio system are met with the PD-501HR Hi-res CD and DSD Disc Player, the UD-501 D/A Converter with USB-streaming, the gorgeous AI-501DA Class-D Integrated Amplifier with USB-streaming and the previously mentioned HA-501 Headphone Amplifier.

This Class-A Dual Monaural Headphone Amplifier delivers superior sound quality, a sleek modern look, all encased in a rugged but compact “letter-size” design. The HA-501 supplies regular headphone listeners with a quality sound, features and adaptable options that cannot be found in regular amplifiers. Users will pair it with their favorite headphones the same way they would a normal amp with favored speakers and take advantage of Active DC Servo Technology, Switchable damping Factors, 1400mW/ch High Output Power, a large Toroidal-Core Power Transformer and relax to their favorite music or radio broadcast.

Key HA-501 features include:

  • 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
  • 1,400mW + 1,400mW 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 audio input
  • 2 pair of RCA pin connectors for unbalanced audio input on rear (Gold-plated)
  • 1 stereo audio input on front (1/8” or 3.5mm Stereo Mini Jack)
  • 1 stereo headphone out on front (1/4” or 6.35mm Stereo Jack)
  • 1 pair of RCA pin connectors for stereo unbalanced audio output (Gold-plated)
  • Switchable output line level (Fixed, Variable, Off)
  • ±15V high voltage operation current at high S/N ratio
  • Precisely machined aluminum knobs (Volume, Input Selector, Damping Factor Selector)
  • Auto-muting when headphone plug is disconnected
  • A 3-polar AC socket with a detachable AC cable


About TEAC

TEAC America, Inc., established in 1967, is the largest subsidiary of the Japanese electronics maker TEAC Corporation. TEAC distributes high grade audio video electronics, consumer electronics, computer data recording and storage devices, computer peripherals and professional recording equipment as well as disc publishing and duplication products. Products are marketed by TEAC America under the brand names ESOTERIC, TEAC and TASCAM. To learn more about TEAC, TASCAM and ESOTERIC products, please visit:, and