Overview
The HMS cinema surround loudspeaker is optimized for use in cinemas, high-end private theaters, screening rooms, and other surround applications. Designed to complement Meyer Sound’s Acheron® screen channel loudspeakers, the self-powered HMS maintains a wide dynamic range, exceptional fidelity, and precise clarity during the most demanding of digital soundtracks. Boasting a wide frequency range and a generous linear peak SPL with very low distortion, the HMS delivers the full intensity and nuance of cinema surround channels to every listener without compromise.
The HMS cinema surround loudspeaker is available in five models: HMS-5™, HMS-10™, HMS-12™, HMS-15™, and HMS-15AC, ranging in size, weight, driver size, and power to accommodate a wide range of venues and applications. The proprietary long-excursion cone drivers and diaphragm compression drivers are driven by an onboard amplifier that includes an active crossover, driver protection circuitry, and correction filters for flat phase and frequency response. A constant-directivity horn provides uniform, full-range, consistent coverage.
The HMS-5, HMS-10, HMS-12, and HMS-15 are equipped with IntelligentDC technology and receive DC power and balanced audio from composite Phoenix™ 5-pin connectors. Powering the loudspeakers from an external DC source eliminates the need for AC conduits while preserving the advantages of self-powered systems. IntelligentDC loudspeakers require a Meyer Sound MPS external power supply. The single-space 19-inch rack unit MPS-488HP, for example, distributes DC power and balanced audio to up to eight HMS-5, HMS-10, or HMS-12 loudspeakers, or up to four HMS-15 loudspeakers. Composite multi-conductor cables, such as Belden® 1502 or equivalent, can deliver both DC power and balanced audio to loudspeakers at cable lengths up to 150 feet with just 1 dB of loss in peak SPL using 18 AWG wire. Longer cable runs are possible with heavier gauges. The MPS-488HP is optionally available with an RMS remote monitoring system module for monitoring voltage and current draw for its attached loudspeakers from a Mac® or Windows®-based computer.
Another power source option is the two-channel MPS-482HP, which is ideal for applications requiring a small channel count or the capability for mounting remotely on a wall or ceiling. Its fanless design operates quietly in acoustically sensitive environments.
The HMS-15AC is an AC-powered version of the HMS-15. Its Intelligent AC power supply provides automatic voltage selection, EMI filtering, soft current turn-on, and surge suppression. The HMS-15AC is optionally available with its own onboard RMS remote monitoring system module for comprehensive monitoring of loudspeaker parameters from a Mac or Windows-based computer.
The versatile HMS can be suspended or mounted on walls or ceilings at fixed or adjustable angles with optional yoke, U-bracket, or wall-mount brackets, allowing it to be deployed per the requirements of any surround application or immersive cinema format.
Meyer Sound’s industry-leading self-powered technology not only delivers unparalleled and consistent audio fidelity but also simplifies installation, whether designing new rooms from scratch or adding surround channels to existing installations. The HMS cabinet features a slightly textured black finish and an acoustically transparent, detachable, black cloth grille that blend smartly with any theater decor.
Features and Benefits
- Exceptional fidelity and extended high-frequency performance
- Constant-directivity horn yields uniform response throughout coverage area
- Seamless integration with Acheron screen channel loudspeakers and X-800C and X-400C cinema subwoofers
- Extraordinarily flat amplitude and phase response for tonal accuracy
- IntelligentDC power affords the flexibility of lengthy cable runs to the HMS-5, HMS-10, HMS-12, and HMS-15 without conduits
- Optional mounting options provide multiple configurations for attachment to walls, ceilings, or hanging clamps
Applications
- Cinemas and theaters
- Screening rooms
- Surround mixing for production and postproduction facilities
- High-end private theaters
- Immersive surround applications
Specifications
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ACOUSTICAL1 |
HMS-5 |
HMS-10 |
HMS-12 |
HMS-15 |
HMS-15AC |
|
Operating Frequency Range2 |
55 Hz – 18 kHz |
55 Hz – 18 kHz |
59 Hz – 18 kHz |
50 Hz – 18 kHz |
50 Hz – 18 kHz |
|
Frequency Response3 |
56 Hz – 18 kHz ± 4 dB |
57 Hz – 17 kHz ± 4 dB |
60 Hz – 18 kHz ± 4 dB |
54 Hz – 16 kHz ± 4 dB |
54 Hz – 16 kHz ± 4 dB |
|
Phase Response |
e 250 Hz – 18 kHz ±45° |
290 Hz – 18 kHz ±45° |
240 Hz – 18 kHz ±45° |
290 Hz – 18 kHz ±45° |
290 Hz – 18 kHz ±45° |
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Linear Peak SPL4 |
121 dB with crest factor >17 dB (M-noise), 119 dB (Pink noise), 120 dB (B-noise) |
125.5 dB with 19.5 dB crest factor (M-noise), 122 dB (Pink noise), 123.5 dB (B-noise) |
128 dB with crest factor >16 dB (M-noise), 125.5 dB (Pink noise), 128 dB (B-noise) |
132 dB with crest factor >16 dB (M-noise), 129.5 dB (Pink noise), 131.5 dB (B-noise) |
132 dB with crest factor >16 dB (M-noise), 129.5 dB (Pink noise), 131.5 dB (B-noise) |
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COVERAGE |
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Horizontal Coverage |
80° |
80° |
100° |
80° |
80° |
|
Vertical Coverage |
80° |
80° |
100° |
50° |
50° |
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TRANSDUCERS |
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Low Frequency |
Two 5-inch long- excursion cone drivers; 8 Ω nominal impedance |
One 10-inch long- excursion cone driver; 4 Ω nominal impedance |
One 12-inch long- excursion cone driver; 4 Ω nominal impedance |
One 15-inch long- excursion cone driver; 2 Ω nominal impedance |
One 15-inch long- excursion cone driver; 2 Ω nominal impedance |
|
High Frequency |
One 2-inch diaphragm compression driver; 12 Ω nominal impedance |
One 2-inch diaphragm compression driver; 12 Ω nominal impedance |
One 3-inch diaphragm compression driver; 16 Ω nominal impedance |
One 3-inch diaphragm compression driver; 16 Ω nominal impedance |
One 3-inch diaphragm compression driver; 16 Ω nominal impedance |
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AUDIO INPUT |
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Type |
Differential, electronically balanced |
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Maximum Common Mode Range |
±15 V DC, clamped to earth for voltage transient protection |
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Connectors |
One Phoenix 5-pin male composite input |
XLR 3-pin female input with male loop output |
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Input Impedance |
10 kΩ differential between Audio (+) and Audio (–) |
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Wiring |
Pin 1: DC power (–); Pin 2: DC power (+); Pin 3: Audio shield chassis/earth; Pin 4: Audio (–); Pin 5: Audio (+) |
Pin 1: Chassis/earth through 220 kΩ, 1000 pF, 15 V clamp network to provide virtual ground lift at audio frequencies Pin 2: Audio (+) Pin 3: Audio (–) Case: Earth ground and chassis |
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Nominal Input Sensitivity |
6 dBV (2.0 V rms) continuous is typically the onset of limiting for noise and music |
2.0 dBV (1.3 V rms) continuous is typically the onset of limiting for noise and music. Note: with the Pad switch enabled, the input sensitivity is 9.5 dBV (3.0 V rms) |
2.0 dBV (1.3 V rms) continuous is typically the onset of limiting for noise and music |
3.0 dBV (1.4 V rms) continuous is typically the onset of limiting for noise and music |
3.0 dBV (1.4 V rms) continuous is typically the onset of limiting for noise and music |
|
Input Level |
Audio source must be capable of producing of +20 dBV (10 V rms) into 600 Ω to produce the maximum peak SPL over the operating bandwidth of the loudspeaker. |
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AMPLIFIER |
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Type |
3-channel with active crossover |
2-channel with active crossover |
2-channel with active crossover |
2-channel with active crossover |
2-channel with active crossover |
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Total Output Power5 |
600 W peak |
600 W peak |
550 W peak |
1000 W peak |
1000 W peak |
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THD, IM, TIM |
< 0.02% |
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Cooling |
Convection |
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POWER |
DC POWER |
AC POWER |
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Connector |
One Phoenix 5-pin male composite input (see Wiring above) |
Two Phoenix 5-pin male6 |
powerCON 20 input with loop output |
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Voltage Requirements7 |
48 V DC (Meyer Sound IntelligentDC External Power Supply Required) |
N/A |
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Automatic Voltage Selection |
N/A |
90–265 V AC |
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Safety Agency Rated Voltage Range |
N/A |
100–240 V AC, 50–60 Hz |
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Turn-on and Turn-off Points |
N/A |
90 V AC turn-on, no turn-off; internal fuse- protection above |
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CURRENT DRAW |
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Idle Current |
N/A |
0.23 A rms at 115 V AC 0.22 A rms at 230 V AC 0.25 A rms at 100 V AC |
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Maximum Long-Term Continuous Current (>10 sec) |
N/A |
1.3 A rms at 115 V AC 0.7 A rms at 230 V AC 1.5 A rms at 100 V AC |
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Burst Current (<1 sec)7 |
N/A |
2.9 A rms at 115 V AC 1.5 A rms at 230 V AC 3.1 A rms at 100 V AC |
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Maximum Instantaneous Peak Current |
N/A |
7.0 A peak at 115 V AC 3.8 A peak at 230 V AC 7.7 A peak at 100 V AC |
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Inrush Current |
N/A |
<20.0 A peak |
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RMS NETWORK |
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Requires RMS option on the MPS IntelligentDC power supply. Reports voltage and current draw for the attached IntelligentDC loudspeakers to the host computer. |
Optionally equipped with two-conductor twisted- pair network |
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PHYSICAL |
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Dimensions |
W: 15.00 in (381 mm) x H: 12.45 in (316 mm ) x D: 9.66 in (245 mm |
W: 15.50 in (394 mm) x H: 19.50 in (495 mm) x D: 12.48 in (317 mm) |
W: 16.80 in (427 mm) x H: 25.12 in (638 mm) x D: 9.78 in (248 mm) |
W: 19.00 in (483 mm) x H: 29.10 in (739 mm) x D: 12.50 in (318 mm) |
W: 19.00 in (483 mm) x H: 29.10 in (739 mm) x D: 12.50 in (318 mm) |
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Weight |
18.4 lb (8.3 kg) |
26.2 lb (11.9 kg) |
43.0 lb (19.5 kg) |
60.0 lb (27.2 kg) |
64.0 lb (29.0 kg) |
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Enclosure |
Premium multi-ply birch with slightly textured black finish |
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Grille Frame |
Acoustically transparent, detachable, black cloth-covered frame |
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Rigging |
Rear attachment points 3.94 in x 3.94 in (100 mm x 100 mm) |
Rear attachment points 3.94 in x 3.94 in (100 mm x 100 mm) |
Rear attachment points 3.94 in x 3.94 in (100 mm x 100 mm) |
Rear attachment points 5.00 in x 2.75 in, (127 mm x 70 mm); side attachment points with 3/8-inch-16 threads |
Rear attachment points 5.00 in x 2.75 in (127 mm x 70 mm); side attachment points with 3/8-inch-16 threads |
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ACCESSORY APPLICABILITY |
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FMB-HMS Fixed Bracket |
√ |
√ |
√ |
√ |
√ |
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AMB-HMS Adjustable Bracket |
√ |
√ |
√ |
√ |
√ |
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HY-HMS Half Yoke |
√ |
√ |
√ |
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MYA-HMS-15 Yoke |
√ |
√ |
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MUB-HMS U-Bracket |
√ |
√ |
√ |
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MUB-HMS15 U-Bracket |
√ |
√ |
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WH-HMS Wall Hinge Bracket |
√ |
√ |
√ |
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