The M3D high-frequency section comprises two Meyer Sound 4-inch diaphragm compression drivers coupled to a constant-directivity horn through a patented REM™ ribbon emulaton manifold. The manifold closely approximates the radiation characteristic of a ribbon driver, affording very tight vertical and wide 90-degree horizontal coverage, while providing the power capability of compression drivers.
Four 15-inch cone drivers in a vented enclosure comprise the M3D's low-frequency section. Two high-power 15-inch drivers (4-inch voice coil) with neodymium magnets face forward. These drivers are capable of a full half-inch of linear excursion. In the rear of the cabinet, two 15-inch cone drivers driven by a sophisticated phase manipulation circuit provide broadband directional control and reinforce the output of the front-facing drivers. This novel technology affords controlled cardioid coverage to 35 Hz.
A complex mid-range phase and magnitude alignment between the two front-facing 15-inch cone drivers prevents destructive combing across the M3D's horizontal coverage. TruPower® limiting technology ensures maximum driver protection, minimizes power compression and permits high constant output under high continuous and peak power conditions.
The self-powered M3D produces a maximum output of 145 dB peak SPL at 1 meter within its operating frequency range of 35 Hz to 18 kHz. The amplifier, control electronics and power supply are integrated into a single, field-replaceable module mounted at the rear of the cabinet.
The four-channel class AB/H power amplifier with complementary MOSFET output stages produces 4500 watts maximum. The M3D’s Intelligent AC™ power supply affords automatic voltage selection, EMI filtering, soft current turn-on and surge suppression. Phase-corrected active processing circuits help maintain excellent performance and reliability, and the high common-mode rejection of the laser-trimmed differential input permits long signal runs through a simple shielded twisted pair cable.
The M3D cabinet is coated with a textured black finish. Integral metal grilles protect the cone drivers, and a rain hood is fitted to protect the electronics from moisture intrusion. The optional QuickFly® MG-3D/M multipurpose grid allows either flying or ground stacking various combinations of M3D and M3D-Sub. Up to 16 M3Ds (or the equivalent weight of M3D and M3D-Sub) may be flown with a 7:1 safety factor. Up to four M3Ds, four M3D-Subs or three M3Ds and one M3D-Sub may be safely ground stacked. Specially-designed caster rails facilitate moving stacks of up to four cabinets, and optional fabric covers protect the cabinets in transit.
Meyer Sound's RMS™ remote monitoring system is fitted as standard, providing comprehensive monitoring of system performance parameters over a Microsoft Windows® network.
Datasheet Pdf
Operating Instructions Pdf