The MM Acoustics M4.18 Quadstack Bundle delivers four horn‑loaded 18-inch subwoofers engineered for high-impact low‑frequency reinforcement in touring and install applications. Each compact enclosure weighs just 62 kg yet, combined as a quad stack, the system achieves an exceptional 153 dB maximum SPL. With a frequency response of 35–200 Hz (‑3 dB) and a sensitivity of 112 dB (1 W/1 m), the M4.18 offers deep extension and impressive efficiency. Power handling is rated at 1800 W AES, 3600 W programme and 10,000 W peak at 8 Ω, giving ample headroom for modern electronic and live content.
Cabinets are built from multiplex beech and finished in durable black Warnex (RAL9005), with optional RAL colours available. A robust metal grille with backing foam protects the driver, and dust/splash resistance supports temporary outdoor use. Connectivity is via 2x Neutrik Speakon NL4, and optional stackware is available for pairing with M28LA systems. Dimensions per cabinet are 700 x 580 x 900 mm.
Ideal for clubs, festivals, mobile production and permanent installs seeking compact form, strong low‑end punch and high output.
Includes
- 4 x MM Acoustics M4.18 horn-loaded 18-inch subwoofers
STAGE22.9.100.980