ADAM Audio H715 Reference Open-Back Studio Headphones

ADAM Audio H715 Reference is ADAM Audio's flagship open-back, circumaural headphone for mixing, mastering and Hi-Fi listening, designed as a genuine alternative to large full-range systems in treated rooms. Sound comes from custom 40 mm titanium-plated PEN drivers with 150 Ohm impedance, neodymium magnets, a carefully tuned suspension and a patent-pending ventilation design.

Reference monitoring outside the control room

The headphones cover 9 Hz to 40 kHz (-3 dB) with less than 0.05% distortion at 100 dB SPL, so you can judge sub-bass and top-end detail when the room or the time of day rules out loud monitors. Sonnox software is included: the Headphone Utility plug-in with H715-specific calibration profiles and adjustable crossfeed, plus the ListenHub app for macOS, which provides system-wide, source-independent calibration along with metering, reference comparison and virtual monitoring.

Comfort for long sessions and a Hi-Fi mode

Despite metal parts throughout, the headphones weigh 0.3 kg without cable. The spring steel headband has a central cutout in the padding that relieves pressure on the crown, the earcups rotate, and the magnetically attached memory foam pads come in faux leather and soft cloth versions. The cable can be connected on either side. A dedicated Hi-Fi mode separates the common ground for true balanced drive from differential amplifiers using the included 3 m cable with a 4.4 mm Pentaconn plug. The headphones fold flat into a hard carry case.

KEY FEATURES

• Open-back, circumaural dynamic design
• 40 mm titanium-plated PEN drivers with neodymium magnets
• 150 Ohm impedance, 9 Hz to 40 kHz response
• Sonnox software: Headphone Utility with H715 profiles and crossfeed, plus ListenHub
• Dedicated Hi-Fi mode for balanced headphone outputs
• Cable entry on left or right side
• Magnetically detachable memory foam pads, two types included
• Lay-flat design and hard carry case

TECHNICAL SPECIFICATIONS

• Type: open-back, circumaural dynamic headphone
• Driver: 40 mm titanium-plated PEN, neodymium magnet
• Impedance: 150 Ohm
• Frequency response (-3 dB): 9 Hz to 40 kHz
• Max SPL at 1 kHz and 0.05% THD: 113 dB SPL
• Sensitivity: 102 dB SPL at 1 Vrms, 94 dB SPL at 1 mW
• THD at 1 kHz and 100 dB SPL: below 0.05%
• Max input power: 100 mW, continuous: 30 mW
• Earcup connectors: 2.5 mm TRS jack
• Source connector: 3.5 mm jack with 6.3 mm adapter, or 4.4 mm Pentaconn
• Weight without cable: 0.3 kg
• Included: 3 m straight cable, 1.3 to 3 m coiled cable, hard case, metal pin for Hi-Fi mode
• Manufacturer warranty: 2 years