Acheron 80/100 Architectural Specifications
The loudspeaker shall be a self-powered, full-range system; the transducers shall consist of a 15-inch diameter cone driver and 4-inch diaphragm compression driver. Two horn options shall be available: 80° horizontal by 50° vertical, and 100° horizontal by 50° vertical. 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. The crossover point shall be 580 Hz.
Each amplifier channel shall be class AB/H with complementary MOSFET output stages. Burst capability for the low-frequency channel shall be 1125 W total with a nominal 4 Ω resistive load and 560 W for the high-frequency channel with a nominal 8 Ω resistive load. Total burst power shall be 1685 W (3370 W peak). Distortion (THD, IM, TIM) shall not exceed 0.02%. Performance specifications for a typical production unit shall be as follows, measured at 1/3-octave resolution: operating frequency range shall be 37 Hz–18 kHz; phase response shall be 700 Hz–17 kHz ±30°; linear peak SPL for the Acheron 80 shall be 135 dB with 18.5 dB crest factor and linear peak SPL for the Acheron 100 shall be 134 dB with 18 B crest factor (both 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. Connectors shall be XLR (A-3) type male and female.
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 ranges shall be 100 to 240 V AC. Maximum peak current draw during burst shall be 6.4 A at 115 V AC, 3.2 A at 230 V AC, and 7.2 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: 35 in (889 mm) x D: 20.5 in (521 mm). Weight shall be 173 lb (78.47 kg). Optional bracket adapters shall allow the Acheron to be fixed to floors, as well as on top of the Acheron LF, with uptilt or downtilt.
The loudspeaker shall be the Meyer Sound Acheron.