The loudspeaker shall be a self-powered, linear, low-distortion, line array loudspeaker. Its transducers shall include two 4 in diaphragm compression drivers coupled to a constant-directivity horn through a patented REM manifold, and two 15 in long-excursion cone drivers.
The loudspeaker shall incorporate internal processing and a 3-channel class AB/H bridged amplifier with complementary MOSFET output stages. Protection circuits shall include TruPower limiting. The audio input shall be electronically balanced with a 10 kΩ impedance and accept a nominal 0 dBV (1.0 V rms) signal (+20 dBV to produce maximum peak SPL). Audio connectors shall be XLR 5-pin, female and male, accommodating both balanced audio and RMS. Performance specifications for a typical production unit shall be as follows, measured at 1/3-octave resolution: operating frequency range shall be 55 Hz to 16 kHz; phase response shall be 375 Hz to 14 kHz ±30 degrees; linear peak SPL shall be 149.5 dB, measured free-field with M-noise at 4 m referred to 1 m.
The internal power supply shall perform EMI filtering, soft current turn-on, and surge suppression. Power requirements shall be nominal 230 V AC line current at 50–60 Hz. UL and CE operating voltage range shall be 208–235 V AC at 50–60 Hz. Current draw during burst (< 1 sec) shall be 8 A rms at 230 V AC. Current inrush during soft turn-on shall not exceed 15 A at 230 V AC. The AC power connector shall be a powerCON 32. The loudspeaker shall include an RMS remote monitoring system module.
Components shall be mounted in an optimally tuned, vented enclosure constructed of premium multi-ply birch and coated with a slightly textured black finish. The protective grille shall be powder-coated, hex-stamped steel with acoustical black mesh. Dimensions shall be 44.42 in (1128 mm) wide x 17.85 in (453 mm) high x 23.00 in (584 mm) deep. Weight shall be 265 lbs (120.2 kg).
The loudspeaker shall be the Meyer Sound LEO-M.
Keyword: Loudspeaker, Loudspeakers
