The UM-1P and the UM-100P self-powered stage monitors are designed for high-level, full-bandwidth monitoring, cleanly reproducing stage mixes that include vocals and musical instruments. These units provide efficient response down to 60 Hz. The compact enclosure houses a 12-inch cone driver and a 3-inch-diaphragm compression driver. The combination of high-performance drivers and perfectly matched drive electronics yields flat amplitude and phase response plus near-perfect impulse response over the full audio bandwidth with benefits including lower susceptibility to feedback. Maximum SPL is 133 dB at one meter, with exceptionally low distortion. Two different high-frequency coverage patterns are available. The UM-1P provides a narrow, symmetrical beamwidth of 45 degrees horizontal and vertical, allowing close placement of monitors with minimal interaction between them. The UM-100P offers coverage of 100-degrees horizontal and 40-degrees vertical, permitting broad coverage in stage monitoring applications. The constant-Q design of the high-frequency horns provides uniform beamwidth across the entire operating range in both the horizontal and vertical planes. Attenuation outside the beamwidth is rapid and uniform at all frequencies, with minimal side lobing. Each driver is individually powered by a dedicated channel of the proprietary class AB/bridged amplifier with complementary MOSFET output stages. Total power is 550 watts. The incoming audio signal is processed through an electronic crossover and correction filters for flat phase and frequency response as well as for driver protection. Phase-corrected electronics ensure flat acoustical amplitude and phase response, resulting in exceptional impulse response and precise imaging. Field-replaceable audio input modules accommodate a range of applications. The standard version offers looping XLR input and output connectors, while an enhanced looping version adds polarity switching (the looping output is not affected) and input attenuation (0 dB to -18 dB). A summing mono version with two inputs is also available. The amplifier/processing package incorporates Meyer Sound’s Intelligent AC™ system, which performs automatic voltage selection, EMI filtering, soft current turn-on and surge suppression, and allows fail-safe operation worldwide. The UM-P cabinet is constructed from premium birch plywood and covered in a black textured hard-shell finish. Recessed handles allow easy transit, a hex-stamped steel grille protects the speakers, and a grey foam grille covering is included. The enclosure can be custom painted for applications requiring specific cosmetics. UM-P models are compatible with the RMS™ remote monitoring system, which offers comprehensive monitoring of system parameters on a Windows®-based network.