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Meyer Sound Documentation

Architectural Specifications
In this section:
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The loudspeaker shall be a self-powered, sub-bass system. The transducers shall consist of two 18-inch cone drivers.

The loudspeaker shall incorporate internal processing electronics and a two-channel amplifier. Each amplifier channel shall be class AB/H with complementary MOSFET output stages. Total output power shall be 1240 watts peak with 8-ohm nominal impedance. Distortion (THD, IM, TIM) shall not exceed 0.02%. 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 V rms) signal (20 dBV to produce maximum peak SPL). Connectors shall be XLR type male and female or VEAM all- in-one.

Performance specifications for a typical production unit shall be as follows, measured at 1/3-octave resolution: Operating frequency range shall be 20 Hz to 200 Hz. Phase response shall be 35 Hz to 120 Hz ±30°. Linear peak SPL shall be 133 dB with crest factor > 12 dB, measured with M-noise, half-space at 4 meters and referred to 1 meter.

The internal power supply shall perform automatic voltage selection, EMI filtering, soft current turn-on and surge suppression. Powering requirements shall be nominal 100 V, 110 V or 230 V AC line current at 50 Hz or 60 Hz. UL and CE operating voltage ranges shall be 95 to 125 V AC and 208 to 235 AC. Current draw during burst shall be 15 A rms at 115 V AC, 8 A rms at 230 V AC and 18 A rms at 100 V AC. Current inrush during soft turn-on shall not exceed 7 A at 115 V AC. AC power connectors shall be L6-20, IEC 309 male or VEAM all-in-one.

The loudspeaker shall optionally incorporate the electronics module for Meyer Sound’s RMS remote monitoring system.

Loudspeaker components shall be mounted in a premium birch plywood enclosure with a smooth medium-gloss black finish (optional textured finish available). Dimensions shall be W: 31.00 in (787 mm) x H: 40.00 in (1016 mm) x D: 20.5 in (521 mm). Weight shall be 221 lb (100.24 kg).

The loudspeaker shall be the Meyer Sound X-800C High-Power Cinema Subwoofer.