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Meyer Sound Documentation

Architectural Specifications
In this section:
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The loudspeaker shall be a linear, low‑distortion, self‑powered, sub‑bass system. Its transducers shall include two 18‑inch long‑excursion cone drivers.

The loudspeaker shall incorporate internal processing and a two‑channel Class AB/H 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 3‑pin XLR, female and male.

Performance specifications for a typical production unit shall be as follows, measured at 1/3‑octave resolution: operating frequency range shall be 28–180 Hz; frequency response shall be 30–160 Hz ±4 dB, measured in half‑space at 4 m, 1/3‑octave frequency resolution; phase response shall be 45–160 Hz ±30 degrees; Linear Peak SPL shall be 140 dB with crest factor >9.5 dB, measured in half‑space 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 or 60 Hz. UL and CE operating voltage range shall be 208 to 235 V AC. Current draw during burst shall be 18 A rms at 230 V AC. Current inrush during soft turn‑on shall not exceed 30 A at 230 V AC. The AC power connector shall be a PowerCon32. The loudspeaker shall include the 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.

Dimensions shall be W: 51.04 in (1296 mm) x H: 20.48 in (520 mm) x D: 33.00 in (838 mm). Weight shall be 249 lb (112.9 kg).

The loudspeaker shall be the Meyer Sound X‑1100C High‑Power Cinema Subwoofer.