Architectural Specifications
The loudspeaker shall be a self-powered, full-range system; the transducers shall consist of a 12-inch diameter cone driver and a 4-inch diaphragm compression driver on an 80° horizontal by 50° vertical horn. The loudspeaker system shall incorporate internal processing electronics and a two-channel amplifier, one channel for each driver. Processing functions shall include frequency and phase correction, signal division, and protection for the low- and high-frequency sections.
Each amplifier channel shall be Class-D. Peak power shall be 1400 W. Distortion (THD, IM, TIM) shall not exceed 0.02 percent. Performance specifications for a typical production unit shall be as follows, measured at 1/3-octave resolution: operating frequency range shall be 37 Hz to 18 kHz; phase response shall be 230 Hz to 17 kHz ±30°; linear peak SPL shall be 128 dB with 18 dB crest factor, measured with M-noise, free-field at 4 meters and referred to 1 meter.
The audio input shall be electronically balanced with a 10 kΩ impedance and accept a nominal 10 dBV (3.2 V rms) signal. Connector shall be 3-pin XLR female with parallel looping male.
The internal power supply shall perform automatic voltage selection, EMI filtering, soft current turn-on, and surge suppression. Power requirements shall be nominal 100, 110, or 230 V AC line current at 50 or 60 Hz. UL and CE operating voltage range shall be 100 to 240 V AC. Current draw during burst (<1 sec) shall be 3.1 A at 115 V AC, 1.4 A at 230 V AC and 3.6 A at 100 V AC. Maximum instantaneous peak current draw shall be 12.0 A at 115 V AC, 54 A at 230 V AC, and 12.4 A at 100 V AC. The AC power connector shall be a PowerCON locking connector with loop 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 enclosure constructed of premium multi-ply birch plywood with a slightly textured black finish. An optional grille frame with protective, black cloth shall be available. Dimensions shall be W: 19.00 in (483 mm) x H: 25.38 in (645 mm) x D: 14.96 in (380 mm) without the optional grille frame. Weight shall be 76 lbs (34.5 kg) with the optional grille frame. The cabinet bottom shall include protective, plastic skids, as well as two M6 attachment points for the optional MYA-DES cradle-style yoke.
The loudspeaker shall be the Meyer Sound Acheron Designer.