Acheron LF Architectural Specifications
The loudspeaker shall be a self-powered bass system. The transducers shall consist of two 15-inch cone drivers (with 4-inch voice coils). 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. Burst capability shall be 1125 W total with a nominal 4 Ω resistive load. Total burst power shall be 2250 W (4500 W peak). 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 10 dBV (3.2 V rms) signal. Connectors shall be XLR type male and female. Performance specifications for a typical production unit shall be as follows, measured at 1/3-octave resolution: operating frequency range shall be 37 Hz–370 Hz; phase response shall be 60 Hz–230 Hz ±30°; linear peak SPL for the Acheron LF shall be 133 dB with > 11 dB crest factor (measured with Pink noise, free field at 4 meters and 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, 115 V, or 230 V AC line at 50 or 60 Hz. Safety agency operating voltage range shall be 100 to 240 V AC. Maximum peak current draw during burst shall be 19.0 A at 115 V AC, 9.5 A at 230 V AC, and 22.0 A at 100 V AC. Current inrush during soft turn-on shall not exceed 7 A at 115 V AC, 7 A at 230 V AC, and 10 A at 100 V AC. AC power connectors shall be locking NEMA L6-20 male inlet or IEC 309 male inlet.
The loudspeaker system shall include support for the optional RMS remote monitoring system module.
All loudspeaker components shall be mounted in an acoustically vented enclosure constructed of premium birch plywood with a slightly textured black finish. Dimensions shall be W: 31 in (787 mm) x H: 36.18 in (919 mm) x D: 20.5 in (521 mm). Weight shall be 185 lb (83.91 kg). Optional bracket adapters shall allow the Acheron LF to be fixed to floors.
The loudspeaker shall be the Meyer Sound Acheron LF.