Meyer

Speakers

Acheron 80/100

At the heart of Meyer Sound’s EXP line of products is the Acheron high-performance 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 exceptional, precise coverage for the left, right, and center sound channels for cinema.

The Acheron loudspeaker is available in two full-range models: the Acheron 100, with a 100-degree horizontal by 50-degree vertical horn, which is ideal for wide theatres; and the Acheron 80, with an 80-degree horizontal by 50-degree vertical horn, which is suitable for more narrow theatres and dub stages.

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Acheron LF

As part of the EXP line of cinema products, the Acheron LF loudspeaker can be paired with the Acheron 80 or Acheron 100 screen channel loudspeaker to deliver the low-frequency headroom required by larger theatres. The self-powered Acheron LF with dual 15-inch drivers boosts the headroom on the LCR channels be converting each Acheron loudspeaker to a system with three low-frequency drivers in an aligned column.

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Acheron HMS-10

Meyer Sound’s HMS-10 is a full-range two-way loudspeaker optimized for surround channels in theatres and dub stages. Designed to complement Acheron screen channel loudspeakers for a complete EXP system HMS-10 maintains a wide dynamic range, full fidelity, and clarity during the most demanding of digital soundtracks. Boasting a wide frequency range of 55 Hz to 18 kHz and a maximum peak SPL of 126 dB with very low distortion, the HMS-10 ensures that the full intensity and nuance of cinema surround channels reach each listener without compromise.

Specification:
Acoustical
Operating Frequency Range 55 Hz – 18 kHz
Frequency Response 58 Hz – 17.5 kHz ±4 dB
Phase Response 290 Hz – 18 kHz ±45°
Maximum Peak SPL 126 dB
Dynamic Range 100 dB
Coverage 80° symmetrical
Crossover 2.5 kHz
Transducers
Low Frequency 10″ low-frequency long excursion cone driver
High Frequency 2″ diaphragm high-frequency compression driver
Connector
Audio/Power Connector Single Phoenix 5-pin male (3 pins for balanced audio, 2 pins for DC power)
Power Wiring Pin 1: 48 V DC –
Pin 2: 48 V DC +
Audio Wiring Pin 3: Chassis/earth through 220 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies
Pin 4: Signal –
Pin 5: Signal +
Audio Input
Type Differential, electronically balanced
Maximum Common
Mode Range
±15 V DC, clamped to earth for voltage transient protection
Input Impedance 10 kΩ differential between pins 4 (–)
and 5 (+)
DC Blocking Differential DC blocking up to the maximum common mode voltage
CMRR >50 dB, typically 80 dB (50 Hz – 500 Hz)
RF Filter Common mode: 425 kHz; Differential mode: 142 kHz
TIM Filter Integral to signal processing (<80 kHz)
Nominal Input
Sensitivity
6.0 dBV (2.0 V rms, 2.8 V peak) continuous average is typically the
onset of limiting for noise and music
Input Level Audio source must be capable of producing +16 dBV (6.3 V rms, 9.0 V peak) into 600 Ω to produce the maximum peak SPL over the operating bandwidth of the loudspeaker
Amplifier
Amplifier Type Two-channel complementary MOSFET output stages (class AB/Bridged)
Output Power 300 W total
THD, IM, TIM <.02%
Load Capacity 4 Ω low channel; 12 Ω high channel
Cooling Convection
DC Power
Voltage Requirement 48 V DC
Current Draw7
: Idle Current
0.35 A rms
Maximum Long-Term
Continuous Current
(>10 sec)
2.03 A rms
Burst Current (<1 sec) 3.31 A rms
Ultimate Short-Term
Peak Current Draw
3.45 A peak
Inrush Current 4.55 A peak

Subwoofers

Acheron X-800C

The Meyer Sound X-800 high-power subwoofer is designed to provide very low-frequencies with ample headroom in critical applications. The X-800 Studio and X-800C Cinema versions from the EXP line of products excel in environments requiring very low distortion, extended bandwidth and extreme low frequency transients.

Specification:
Acoustical
Operating Frequency Range 20 Hz – 200 Hz
Frequency Response 23 Hz – 160 Hz ±4 dB
Phase Response 32 Hz to 175 Hz ±30°
Maximum Peak SPL 136 dB
Dynamic Range >110 dB
Coverage 360° (single unit); varies with number of units and configuration
Transducers
Low Frequency Two 18″ cone drivers
Nominal impedance: 8 Ω
Voice coil size: 3″
Power-handling capability: 600 AES W
Audio Input
Type Differential, electronically balanced
Maximum Common
Mode Range
±15 V DC, clamped to earth for voltage transient protection
Connectors Female XLR input and male XLR loop output (integrates AC, audio and network)
Input Impedance 10 kΩ differential between pin 2 and 3
Wiring Pin 1: Chassis/earth through 220 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies
Pin 2: Signal +
Pin 3: Signal -
Case: Earth ground and chassis
DC Blocking None on input; DC blocked through signal processing
CMRR >50 dB, typically 80 dB (50 Hz – 500 Hz)
RF Filter Common mode 425 kHz; Differential mode 142 kHz
TIM Filter Integral to signal processing (< 80 kHz)
Input Level Audio source must be capable of producing a minimum of +20 dB V (10 V rms, 14 V pk) into 600 Ω inorder to produce maximum peak SPL over the operating bandwidth of the loudspeaker
Nominal Input
Sensitivity
0 dB V (1 V rms, 1.4 V pk) continuous is typically the onset of limiting for noise and music
Amplifier
Type Complementary power MOSFET output stages (class AB/H)
Output Power 1240 W (2480 Watts peak)
THD, IM, TIM <0.02%
Load Capacity 8 Ω minimum impedance each channel
Cooling Forced air cooling, 2 internal fans (one low-speed and one reserve fan)
AC Power
Connector 250 V AC NEMA L6-20 inlet or IEC 309 male inlet
Automatic Voltage
Selection
Automatic, two ranges, each with high-low voltage tap (uninterrupted)
Safety Agency Rated
Operating Range
95 V AC – 125 V AC; 208 V AC – 235 V AC; 50/60 Hz
Turn-on and
Turn-off Points
85 V AC – 134 V AC; 165 V AC – 264 V AC; 50/60 Hz
Idle Current 0.640 A rms (115 V AC); 0.320 A rms (230 V AC); 0.850 A rms (100 V AC)
Max Long-Term
Continuous Current
(>10 sec)
8 A rms (115 V AC); 4 A rms (230 V AC); 10 A rms (100 V AC)
Burst Current (<1 sec) 15 A rms (115 V AC); 8 A rms (230 V AC); 18 A rms (100 V AC)
Ultimate Short-Term
Peak Current Draw
22 A pk (115 V AC); 11 A pk (230 V AC); 25 A pk (100 V AC)
Inrush Current <7 A (115 V AC & 230 V AC); 10 A pk (100 V AC)
RMS Network
(optional)
Equipped for two-conductor twisted-pair network, reporting all operating parameters of amplifiers to system operator’s host computer.