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.

Specifications:

• 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