Architectural Specifications
The loudspeaker shall be a self-powered, full-range system. The transducers shall consist of two 5-inch diameter cone drivers and a 1-inch metal dome tweeter.
The loudspeaker system shall incorporate internal processing electronics and a two-channel amplifier. Processing functions shall include equalization, phase correction and signal division, and driver protection for the high- and low-frequency sections. Each amplifier channel shall be class AB/bridged with complementary MOSFET output stages. Peak capability shall be 650 W total with nominal impedance of 8 Ω low channels and 8 Ω high channel. Distortion (THD, IM, TIM) shall not exceed 0.02%.
Performance specifications for a typical production unit shall be as follows: operating frequency range shall be 75 Hz – 20 kHz; phase response shall be 415 Hz – 16 kHz ±45°; linear peak SPL shall be 118.5 dB with crest factor >14 dB, measured with M-noise, free-field at 4 m referred to 1 m; horizontal coverage and vertical coverage shall both be 100°.
The audio input shall be electronically balanced with a 10 kΩ impedance and accept a nominal 0 dBV (1 V rms) signal. Connector shall be XLR 3-pin female with male loop.
Two versions shall be available: a switchable 115/230 V and a non-switchable 100 V-only version. The voltage selection must be manually selected. The internal power supply shall perform EMI filtering, soft current turn-on and surge suppression. Power requirements shall be nominal 100 V AC (100 V version) and 110 or 230 V AC (115/230 version) line current at 50 or 60 Hz. Ultimate short-term peak current draw shall be 2.9 A at 115 V AC, 2 A at 230 V AC and 3.3 A at 100 V AC. Current inrush during turn-on shall not exceed 18 A at 115 V AC. AC power connectors shall be PowerCON with looping output. The loudspeaker system shall provide facilities for installing Meyer Sound’s optional RMS™ remote monitoring system.
All loudspeaker components shall be mounted in an acoustically vented trapezoidal enclosure constructed of premium multi-ply birch with a slightly textured black finish. The front protective grille shall be powder-coated, hex-stamped steel with black mesh. Dimensions shall be W: 6.93 in (176 mm) x H: 18.00 in (457 mm) x D: 7.60 in (193 mm). Weight shall be 22 lb (9.98 kg). Rigging shall be three 3/8-inch-16 or M10 nut plates.
The loudspeaker shall be the Meyer Sound UPM-1P.