From the Manufacturer
The JM‑1P self-powered loudspeaker is a high-Q, arrayable loudspeaker suited for a wide range of applications. Utilizing Meyer Sound’s patented REM® technology and trapezoidal cabinet design, the JM‑1P can be deployed in tightly-packed array clusters to deliver coverage that is proportional to the number of units in the array. While JM‑1P point source arrays are optimized for horizontal installations, they can also be used vertically when necessary. With its scalable coverage and versatile QuickFly® rigging options, the JM‑1P loudspeaker can be used for touring, rental, and fixed installations. Boasting a wide operating frequency range of 53 Hz to 18 kHz, the JM‑1P delivers a remarkably smooth sound with ample low‑frequency headroom. The JM‑1P’s drivers include one lowfrequency, 15-inch, long-excursion cone driver, and one highfrequency, 4-inch compression driver with an REM manifold coupled to an extremely accurate horn. The JM‑1P is distinguished by its Constant-Q horn that provides a coverage of 20° horizontal by 60° vertical. The loudspeaker’s consistent polar response and trapezoidal enclosure allow for tightly packed arrays with minimal overlap in high frequencies. The JM‑1P’s sophisticated onboard amplification and processing produces consistent and predictable results in any system design. A proprietary two-channel, class AB/H power amplifier with complementary MOSFET output stages yields a total power output of 2550 W peak. Built-in signal processing includes an electronic crossover, driver protection, and correction filters for achieving flat phase and frequency responses. Each amplifier channel has peak and rms limiters that prevent driver overexcursion and regulate voice coil temperatures. Limiting activity is easily monitored with the rear panel limit LEDs. The optional RMS™ remote monitoring system provides comprehensive monitoring of system parameters on a remote Mac® or Windows-based computer running Compass® Control Software. The JM‑1P’s end plates include captive GuideALinks™ and quick‑release pins that allow the unit to be easily linked to other JM‑1Ps in arrays. The optional MPA‑JM1 pickup plate suspends JM‑1P horizontal arrays of up to four units with uptilt or downtilt from a single hanging point; two pickup plates can suspend arrays of up to six units from a single hanging point or motor using the MTGSB‑4B spreader bar. For additional flexibility, the optional MTG‑JM1 vertical grid suspends vertical arrays of up to six units. The optional MDB‑JM1 dolly board transports the JM‑1P safely and securely; multiple dolly boards can be interlocked to transport up to three linked JM‑1Ps. Constructed of premium multi-ply birch, the durable JM‑1P enclosure is coated with a slightly textured black finish. A hex‑stamped steel grille with acoustical black mesh protects the unit’s drivers. Other options include weather protection and custom color finishes for fixed installations and applications with specific cosmetic requirements.