M-SERIES
The Adamson M-Series was designed to offer the power needed for high-energy performances without increasing weight or footprint. Using Kevlar Neodymium drivers ensures that a monitor engineer will be able to accommodate any performer’s needs, while not breaking backs setting up the stage. Tight coverage patterns utilizing our proprietary waveguide technology means that the M-Series reinforce well-defined coverage area with minimal spill. M-Series loudspeakers are available in a wide variety of options to accommodate any specification.

The incredibly lightweight Adamson M12 monitor delivers everything you need in a low profile stage monitor: fantastic gain before feedback, precise pattern control and high output with extremely low distortion. Together, the symmetrical trapezoid design and the 65° x 65° waveguide, allow any two M12s to operate as a mirrored pair. The M12 exhibits remarkably low distortion thanks to the qualities of its advanced multi-layer Kevlar cone driver.
The M12 is available in Active (Bi-amped), or Active / Passive switchable configurations.
| Frequency Range (+/-3 dB) | 60 Hz - 18 kHz |
| Nominal Directivity (-6 dB) H x V | 65° x 65° |
| Maximum Peak SPL** | 136.9 dB Active, 136.7 dB Passive |
| Components LF | 12" ND12-L Kevlar Neodymium Mid-Bass Driver |
| Components HF | B&C DE920TN 3" Diaphragm / 1.4" 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 | 110 / 440 W |
| Power Handling (AES / Peak) Passive | 610 / 2440 W |
| Connection | 4x Speakon™ NL4 |
| Height Front (mm / in) | 343 / 13.5 |
| Width (mm / in) | 638 / 25.1 |
| Depth (mm / in) | 401 / 15.8 |
| Weight (kg / lbs) | 19.3 / 42.5 |
| Supported Processing | Lake, XTA |
**12 dB crest factor pink noise at 1m, free field, using specified processing and amplification
ACCESSORIES
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M12 Roadcase Twinpack (900-0004) | Upright case opens vertical for two M12 Cabinets |
M12

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 |
| Rigging |
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
ACCESSORIES
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MASS System Multi-Purpose Plate (932-0010) | Rigging plate for M15 |
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Mass Dual Plate (932-0013) | Dual cabinet rigging plate |
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MASS System Horizontal Kit W/Plates (932-0025) | Mass system U-bar, assembly and plates |
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MASS System Dual Axis Kit W/ Plates (932-0026) | Mass system U-bar, L bar, assembly and plates |
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Mass System Fly Track (pair) (932-0008) | Fly track assembly for M15 |
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M15 Roadcase Twinpack (900-0005) | Upright case opens vertical for two M15 Cabinets |
M15

The Adamson M212 monitor delivers everything you need in a low profile stage monitor: fantastic gain before feedback, precise pattern control and high output with extremely low distortion. With 2 x 12” LF drivers, the M212 offers more bass and output than its smaller counterpart, the M12, and with the 65° x 65° waveguide, a wider dispersion than its larger counterpart the M215.
The M212 exhibits remarkably low distortion thanks to the qualities of its advanced multi-layer Kevlar cone driver. Two Adamson long-excursion 12” Kevlar Neodymium drivers supply exceptional power handling with outstanding mid frequency response, ideal for demanding vocal performance. Adamson’s Advanced Cone Architecture dramatically increases the linearized mid-range response by reducing the radial and chaotic modes in the ND12’s passband. The Kevlar cone design also enforces extreme durability in wet conditions making the M212 an ideal solution for outdoor events.
| Frequency Range (+/-3 dB) | 50 Hz - 18 kHz |
| Nominal Directivity (-6 dB) H x V | 65° x 65° |
| Components LF | 2x ND12-L 12" Kevlar Neodymium Mid-Bass Driver |
| Components HF | B&C DE920TN 3" Diaphragm / 1.4" Exit Compression Driver |
| Nominal Impedance LF | 4 Ω |
| Nominal Impedance HF | 8 Ω |
| Power Handling (AES / Peak) LF | 2x 500 / 2x 2000 W |
| Power Handling (AES / Peak) HF | 110 / 440 W |
| Connection | 4x Speakon™ NL4 |
| Height Front (mm / in) | 401 / 15.8 |
| Width (mm / in) | 630 / 24.8 |
| Depth (mm / in) | 584 / 23 |
| Weight (kg / lbs) | 32.65 / 72 |
| Supported Processing | Lake, XTA |
**12 dB crest factor pink noise at 1m, free field, using specified processing and amplification
M212

The Adamson M215 monitor delivers everything you want and more in a conventional stage monitor: extremely high-power and high-performance with zero distortion. The trapezoid enclosure features symmetrical driver placement with a 50° conical waveguide resulting in outstanding directivity control. Designed for use as a stage monitor, it can also double as a superior drum or stage-fill enclosure, specifically aimed for performers wanting extra high SPL without losing intelligibility.
| Frequency Range (+/-3 dB) | 45 Hz - 18 kHz |
| Nominal Directivity (-6 dB) H x V | 50° x 50° |
| Maximum Peak SPL** | 143.7 dB |
| Components LF | 2x ND15-L 15" Kevlar Neodymium Driver |
| Components HF | B&C DE1000 4" Diaphragm / 1.5" Exit Compression Driver |
| Nominal Impedance LF | 4 Ω |
| Nominal Impedance HF | 8 Ω |
| Power Handling (AES / Peak) LF | 2x 500 / 2x 2000 W |
| Power Handling (AES / Peak) HF | 140 / 560 W |
| Connection | 4x Speakon™ NL4 |
| Height Front (mm / in) | 470 / 18.5 |
| Width (mm / in) | 818 / 32.2 |
| Depth (mm / in) | 605 / 23.8 |
| Weight (kg / lbs) | 41.6 / 91.5 |
| Supported Processing | Lake, XTA |
**12 dB crest factor pink noise at 1m, free field, using specified processing and amplification

































