Adam Audio H715 Reference

ADAM Audio’s flagship open-back headphones

With the H715 Reference, ADAM Audio brings its studio monitoring standards to a premium open-back headphone. Its goal: to deliver balanced reproduction, extended bass and very low distortion to support production decisions. The strengthened collaboration with Sonnox extends this approach by combining acoustic design with dedicated software tools.

For mixing decisions and demanding listening

This mixing and mastering headphone is aimed at sound engineers, producers and musicians who want to examine the balance, dynamics and stereo image of their projects. Its open-back design is particularly well suited to quiet environments: it prioritizes openness of sound over the isolation required for recording vocals in front of a microphone.

Its 150-ohm impedance makes it ideal for connection to a suitable headphone output. Whether in the studio or at home, it also lends itself to attentive music listening, particularly with a premium amplifier compatible with its balanced connection.

Acoustic and software design for precise monitoring

Transducers designed for transparency

The titanium-coated PEN diaphragms work with powerful neodymium magnets, a precisely tuned suspension and a patent-pending ventilation system. The angled transducers are positioned behind a permeable woven steel mesh. A dense acoustic material surrounds their output to attenuate unwanted resonance peaks.

Headphone Utility and ListenHub: going beyond listening

Developed with Sonnox, Headphone Utility offers settings tailored to ADAM Audio headphones and an adjustable crossfeed for a better headphone assessment of mixes intended for speakers. ListenHub adds a virtual monitoring environment: comparison with tracks from streaming platforms, level matching, metering, mono checking, side channels and balance.

On macOS, Headphone Utility can run directly within ListenHub. Calibration then applies system-wide, independently of the audio source being used.

A Hi-Fi mode for balanced amplification

The 3 m Hi-Fi cable connects the two earcups to a five-pin 4.4 mm Pentaconn output. The recessed button in the left earcup, accessible with the supplied metal rod, separates the common ground for use with a compatible differential amplifier. Pressing it again restores the common ground and allows you to resume using the single-input studio cable.

Comfort and replaceable parts

The spring-steel headband provides a secure fit, while its central cutout reduces pressure on the top of the head. The memory-foam earpads, available in soft fabric and faux leather, attach magnetically. Machined aluminum supports, detachable cables and interchangeable padding complete a modular design intended for long sessions and long-term maintenance.

Technical specifications

Category	headphone	Adjustable headset	Yes
Format	circumaural	Foldable	Yes
Power handling	30 MILLIWATT	Wireless	No
Design	open	SPL max	113 dB
Connectors	Jack	Color	Black
Transducer diameter	40 mm	Colours	Noir
Impedance	150 Ω	Weight	302 g
Cable length	3 m

Transducer type	dynamic.	Maximum input power	100 mW, or 3.8 V.
Acoustic design	open-back.	Continuous permissible input power	30 mW, or 2.12 V.
Fit and wearing style	circumaural, around the ears, with a headband passing over the head.	Total harmonic distortion at 1 kHz and 100 dB SPL	less than 0.05%.
Diaphragms	titanium-plated PEN.	Earcup connectors	2.5 mm TRS jack sockets, or 1/10 inch.
Magnets	neodymium.	Studio cable input	left or right side, with locking mechanism.
Acoustic structure	permeable woven steel mesh and dense material designed to attenuate resonances.	Balanced connection	dual input with the Hi-Fi cable.
Front protection for the transducers	fabric- and felt-covered grille.	Studio cable	straight 3.5 mm TRS jack connector, or 1/8 inch, with a 6.3 mm adapter, or 1/4 inch.
Nominal impedance	150 ohms.	Specified studio cable lengths	3 m in straight configuration, or approximately 10 feet; 1.3 m in coiled configuration, or approximately 4 feet.
Frequency response at -3 dB, referenced to 1 kHz	9 Hz to 40 kHz.	Included studio cable	1.3 m coiled cable, extendable up to 3 m.
Maximum sound pressure level at 1 kHz	113 dB SPL.	Included Hi-Fi cable	straight, 3 m length, or approximately 10 feet, dual input and a five-pin 4.4 mm Pentaconn connector.
Sensitivity at 1 kHz under 1 Vrms	102 dB SPL.	Hi-Fi mode switching	recessed button in the left earcup, for disconnecting or restoring the common ground.
Sensitivity at 1 kHz for 1 mW	94 dB SPL.