The Adamson M15 multi-purpose loudspeaker features an extremely low profile, symmetrical pentagon design, with a 50-degree conical waveguide. This unique combination allows any two enclosures to work together in a mirror image monitor configuration.

The M15 is loaded with a single Adamson ND15-L Kevlar Neodymium Driver, marking the launch of Adamson’s Advanced Cone Architecture – This breakthrough technology makes the ND15-L the only 15” driver with zero axial modes in its entire passband, dramatically increasing the linearized mid-range response, while maintaining a rock solid bottom end (impossible to achieve with a 15” paper driver). The top end is covered by a 4” high frequency compression driver, giving it extremely high SPL throughout the bandwidth. The lightweight package (56.5 lbs/25.63 kg) can be equipped with a switchable internal crossover, allowing bi-amped or passive operation.

Frequency Range (+/-3 dB) 50 Hz - 18 kHz
Nominal Directivity (-6 dB) H x V 50° x 50°
Maximum Peak SPL** 137.8 dB Active, 137.3 dB Passive
Components LF ND15-L 15" Kevlar Neodymium Driver
Components HF B&C DE1000 4" Diaphragm / 1.5" Exit Compression Driver
Nominal Impedance LF 8 Ω
Nominal Impedance HF 8 Ω
Nominal Impedance Passive 8 Ω
Power Handling (AES / Peak) LF 500 / 2000 W
Power Handling (AES / Peak) HF 140 / 560 W
Power Handling (AES / Peak) Passive 640 / 2560 W

MASS™ Rigging System

Connection 4x Speakon™ NL4
Height Front (mm / in) 356 / 14
Width (mm / in) 724 / 28.5
Depth (mm / in) 429 / 16.9
Weight (kg / lbs) 25.4 / 56
Supported Processing Lake, XTA

**12 dB crest factor pink noise at 1m, free field, using specified processing and amplification

M15 M15 Roadcase Twinpack (900-0005) Upright case opens vertical for two M15 Cabinets
M15 Spec Sheet One page spec sheet for the M Series M15 n/a
M15 User Manual User Manual detailing operating instructions for the M15 cabinet n/a
Adamson Load Library V5.4 Adamson's updated preset library - Requires Lake Controller 7.0.0 or higher n/a
Adamson Amplification Chart V5.4 Displays the maximum amount of Adamson loudspeakers that can be used with approved amplifiers. n/a
ADAMSON EASE Data V17 Complete GLL library for all Adamson products n/a
3D CAD Drawings 3D CAD Drawings of all M-Series enclosures n/a
XTA Preset Library V40 29dB V40 contains all the latest, updated presets for Adamson's product line. Only use with amplifiers set to 29dB amp gain. n/a
XTA Preset Library V40 32dB V40 contains all the latest, updated presets for Adamson's product line. Only use with amplifiers set to 32dB amp gain. n/a


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