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Acheron 80/100 Screen Channel Loudspeaker System

Unique ref.: meyersound-acheron80-100
Brand: Meyer Sound
Product family: Loudspeakers
Product group: Cine-Studio
Date of publishing: 2019-04-25
Edition number: 1
Type: Object (single object)
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At the heart of Meyer Sound’s cinema line of loudspeakers is the high-performance Acheron screen channel loudspeaker. Optimized for installation behind perforated screens, the two-way loudspeaker combines the advantages of self-powered technology and innovative horn design to deliver precise coverage for cinema screen sound channels. Acheron 80 and 100 are identical except for horizontal coverage.

Features & Benefits

  • Self-powered design provides ease of installation and reliability
  • Exceptional clarity and extended headroom
  • Constant-Q horn yields uniform response throughout the coverage area
  • Extraordinarily flat amplitude and phase response for tonal accuracy
  • Wider or narrower coverage versions accomodate different room shapes
  • Seamless integration with the Acheron LF loudspeaker and HMS-10 surround loudspeaker
  • Extended high-frequency performance


  • Small- to medium-sized theatres
  • Larger theatres with use of Acheron LF
  • Re-recording stages
  • Screening rooms

Cinema Screen Channel Loudspeaker: Acheron
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-degree horizontal by 50-degree vertical, and 100-degree horizontal by 50-degree 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 watts total with a nominal 4-ohm resistive load and 560 watts for the high-frequency channel with a nominal 8-ohm resistive load. Total burst power shall be 1685 watts (3370 watts 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 to 18 kHz; phase response shall be ±30° from 700 Hz to 17 kHz; maximum peak SPL shall be 139 dB at 1 meter, free field.

The audio input shall be electronically balanced with a 10 kOhm impedance and accept a nominal 10 dBV (3.2 V rms, 4.5 V peak) signal. Connectors shall be XLR (A-3) type male and female. RF filtering shall be provided, and CMRR shall be greater than 50 dB from 50 Hz to 500 Hz. 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 at 50 or 60 Hz. UL and CE 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 black textured finish. Dimensions shall be 31.00" wide x 35.00" high x 20.50" deep (787 mm x 889 mm x 521 mm). Weight shall be 173 lbs (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.

Material main: Birch
Material secondary: Plywood
Designed in: United States
Manufactured in: United States

BIMobject Category: Electronics - Audio
Uniclass 1.4 Code: L76116
Uniclass 1.4 Description: Loudspeakers
Uniclass 2.0 Code: PR-75-06-49
Uniclass 2.0 Description: Loudspeakers
Uniclass 2015 Code: Pr_70_75_36_50
Uniclass 2015 Description: Loudspeakers
NBS Reference Code: 75-06-49
NBS Reference Description: Loudspeakers
CSI MasterFormat 2014 Code: 27 24 23
CSI MasterFormat 2014 Title: Audio-Video Devices
OmniClass Number: 23-37 15 29 11 13
OmniClass Title: Loudspeakers
This product is available in:
North America
  • United States

BIMobject SEEK Properties

Electronics - Audio

Name Value
Depth 20.5
Height 35
Installation Locations Small- to Medium-Sized Theatres ; Larger Theatres with Use of Acheron LF ; Re-Recording Stages ; Screening Rooms
System Type Loudspeaker
Width 31

Meyer Sound


Name Value
Maximum Peak SPL 139 dB
Output Power 1685 W | 1125 W Low Channel | 560 W High Channel
Weight 173 lb
Total Output 3370 W Peak
Operating Frequency Range 37 Hz to 18 kHz
Crossover 580 Hz
Coverage Acheron 80: 80 deg Horizontal x 50 deg Vertical | Acheron 100: 100 deg Horizontal x 50 deg Vertical
Finish Low-Gloss Black Textured
Enclosure Material Premium Birch Plywood

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