Yamaha HA-L7A

Striving for the ultimate True Sound in headphone listening, Yamaha has crafted a headphone amplifier that achieves true audiophile performance. Our passion to constantly create and innovate has scaled sonic heights for over 30 years—fusing superior Hi-Fi audio technologies with sound field advancements from our AV receivers. Introducing our HA-L7A high-end headphone amplifier. Dive in, immerse yourself, and newly experience the full emotion and excitement in all your entertainment.

YAMAHA’S UNIQUE FLOATING AND BALANCED POWER AMPLIFIER TECHNOLOGY

Yamaha has optimized its patented Floating and Balanced Power Amplifier technology for this headphone amplifier. A total of four sets of power amplifier circuits on the plus and minus sides of the left and right channels of the output stage are floated from the ground, resulting in thoroughly symmetrical push-pull operation of the output stage. The headphones can be driven without altering the amplifier configuration between balanced and unbalanced, minimizing any sound quality discrepancies due to different output terminals. Moreover, all circuitry, including the power supply, is completely independent of the ground, and all effects of minute voltage fluctuations and external noise surrounding the ground are thoroughly eliminated. By maximising these sound quality advantages, the amplifier achieves a natural and fatigue-free sound that lets you fully lose yourself in your entertainment, even when listening for a long time.

ELITE, ULTRA-HIGH PERFORMANCE 32-BIT D/A CONVERTER FROM ESS

Sparing no expense to realize superior sonic quality suitable for Yamaha’s ideal high-end headphone amplifier, we have adopted ESS Technology’s ES9038PRO converter, which is outstanding in the DAC industry for top-quality audio reproduction of minute signals. The dedicated master clock on the device utilizes a crystal oscillator with ultra-low phase noise to attain the highly precise D/A conversion, and features an eight-channel D/A converter housed inside the chip that applies four-channel conversion to the left and right sides respectively. Utilizing this four-channel bundle delivers exceptionally high-quality audio output with broad dynamic range and superior signal-to-noise ratio. This unlocks a greater sense of enjoyment in headphone listening, where you can intimately experience even background noises of the concert hall and the most minute details in the sounds of the instruments.

HIGH RIGIDITY CONSTRUCTION – ELIMINATING SONIC IMPACTS FROM VIBRATION

n order to eliminate any detrimental impact of external and internal vibrations on the audio signals, we’ve given the unit a rugged construction that combines an original design concept with parts of high rigidity. An extruded aluminum panel of 8 mm thickness forms the L-shaped top surface, while the naturally vibrating toroidal transformer is mounted firmly onto a 2-mm-thick steel plate. Even stronger support is provided by a thick front panel, a double rear panel, and a unique housing design that features a bottom cover at the end. Through this heavy-duty housing, unnecessary vibrations are suppressed, enabling powerful yet supple low-frequency reproduction, and allowing you to completely feel the powerful energy and genuine realism contained in the music.

ELEGANT ROTARY DIAL

The robust weighty chassis is comprised of thick aluminum, and in addition to that exquisite main frame, aluminum is also used for the master volume and mode selector dials. Moreover, an abrasive sandblasting process has produced a high-grade textural feel, contributing to the elegance of high-end audio right down to the smallest detail—delivering a supremely tactile experience when using the HA-L7A.

HA-L7A Features

• Yamaha’s unique Floating and Balanced Power Amplifier technology optimised for headphone listening
• Adopting ESS Technology’s ES9038PRO to realise superior sonic quality
• 2 toroidal transformers for remarkable spacious sound
• SOUND FIELD mode for more immersive experience in any content
• Pure Direct mode to fully enjoy the subtest nuances in the music
• Elegant design yet high rigid construction
• 5 solid metal feet for exceptional stability and suppress any vibration
• OLED display with brilliant visibility

Specification