Architectural Specifications
The loudspeaker shall be a self‑powered, sub‑bass system with a single 18‑inch low‑frequency, long‑excursion cone driver.
The loudspeaker shall incorporate internal processing electronics and a single‑channel amplifier. Total output power shall be 900 watts peak with a 4Ω nominal impedance. Distortion (THD, IM, TIM) shall not exceed 0.02%. 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 3‑pin male and female.
Performance specifications for a typical production unit shall be as follows, measured at 1/3‑octave resolution: operating frequency range, 20 Hz to 200 Hz; phase response, 32 Hz to 175 Hz ±30°; linear peak SPL 127.5 dB with crest factor >11.5 dB, measured in half‑space with M‑noise at 4 m referred to 1 m.
The internal power supply shall perform automatic voltage selection, EMI filtering, soft current turn‑on, and surge suppression. Power requirements shall be nominal 100 V, 110 V or 230 V AC line current at 50 or 60 Hz. UL and CE operating voltage ranges shall be 200 to 240 V AC. The maximum long‑term continuous current draw (> 10 sec) shall be 1.4 A rms at 115 V AC, 0.7 A rms at 230 V AC, and 1.6 A rms at 100 V AC. Current inrush during soft turn‑on shall not exceed 10 A peak at 115 V AC, 8 A peak at 230 V AC, and 10 A peak at 100 V AC. AC power connectors shall be powerCON 20 with loop output. The loudspeaker shall optionally include an RMS remote monitoring system module.
Loudspeaker components shall be mounted in a premium multi‑ply birch enclosure with a slightly textured black finish. Dimensions shall be W: 31.00 in (787 mm) x H: 20.65 in (525 mm) x D: 20.79 in (528 mm). Weight shall be 85 lb (38.6 kg).
The loudspeaker shall be the Meyer Sound X‑400C Compact Cinema Subwoofer.