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Yamaha HA-L7A Headphone Amplifier

Yamaha HA-L7A Headphone Amplifier

Yamaha HA-L7A Headphone Amplifier


The HA-L7A is Yamaha’s first true, high-end headphone amplifier.

A true audiophile-level component, it delivers True Sound to discerning audio fans.

Yamaha’s patented Floating and Balanced Power Amplifier technology is optimised for headphone amplification duties, with the aim of completely eliminating electrical noise. While ESS Technology’s renowned ES9038PRO 32-bit D/A converter brings further sonic pedigree to the table. The chips dedicated master clock utilises a crystal oscillator with ultra-low phase noise to attain exceptionally precise D/A conversion. It features a built-in eight-channel D/A converter that applies four-channel conversion to both the left and right sides. Utilising this four-channel bundle delivers exceptionally high-quality audio output with broad dynamic range and superior signal-to-noise ratio.

In addition, dual toroidal transformers have been utilised - another example of the Yamaha engineers refusal to accept compromises in order to achieve outstanding low-frequency response to finely detailed audio and extraordinary transparency. This power supply section employs independent transformers for the minute-signal circuitry in the front stage and the amplifier section in the second stage. It implements a separate power supply design that minimises noise from mutual signal interference, moreover, the use of toroidal transformers significantly reduces magnetic flux leakage, while employing bifilar coiling minimises voltage variations.

Yamaha’s unique SOUND FIELD technology carries over from their extensive experience with AVR’s, to allow the listener to enjoy six convenient presets for reproducing the optimal sound field, depending on the source or sonic preferences.

Connectivity has been carefully considered when designing the HA-L7A.

The front panel features two balanced headphone jacks and one unbalanced jack. Famed NEUTRIK jacks are used on the XLR balanced jacks, and Pentaconn terminals are utilised for the 4.4mm 5-pole terminals, helping to unleash the sonic potential of any connected headphones. Inputs include USB (type B), coaxial and optical – allowing you to connect DAP’s, PC’s and CD players. Plus the built-in XLR and RCA pre-out/line-out output terminals allow the unit to be used as a D/A convertor or preamplifier.


  • Frequency response (HP OUT) : 4Hz – 80kHz, -3 dB
  • Headphone Output
  • φ6.3㎜ : 1,000mW + 1,000mW (1kHz, 0.01% THD, 32ohms)
  • φ4.4㎜ : 1,000mW + 1,000mW (1kHz, 0.01% THD, 32ohms)
  • XLR4 : 1,000mW + 1,000mW (1kHz, 0.01% THD, 32ohms)
  • Total Harmonic Distortion(THD) : ≦ 0.003 % (Digital IN 1 kHz, 300 mW, 32 Ω)
  • Signal to Noise Ratio (SNR) : > 120dB


  • RCA : Yes
  • Optical : Yes (PCM: 32/44.1/48/88.2/96 kHz, 16/24 bit)
  • Coaxial : Yes (PCM: 32/44.1/48/88.2/96/176.4/192 kHz, 16/24 bit)
  • USB Type-B : Yes Yes (PCM: 44.1/48/88.2/96/176.4/192/352.8/384 kHz, 16/24/32 bit, DSD: 2.8 MHz/5.6 MHz/11.2 MHz: ASIO Native, DoP)


  • XLR3 : Yes
  • RCA : Yes

Recommended Headphones impedance : 32 ~ 600 Ω

  • Pure Direct : Yes
  • Power Consumption : 19 W
  • Standby Power Consumption : 0.2 W
  • Dimensions (W x H x D) : 333 x 133 x 189mm (w/Trans, Leg, Knob, Terminal)
  • Weight : 5.3kg