Specifications

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° |
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) |
COVERAGE | |||||
Horizontal Coverage | 80° | 80° | 100° | 80° | 80° |
Vertical Coverage | 80° | 80° | 100° | 50° | 50° |
TRANSDUCERS | |||||
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 |
AUDIO INPUT | |||||
Type | Differential, electronically balanced | ||||
Maximum Common Mode Range | ±15 V DC, clamped to earth for voltage transient protection | ||||
Connectors | One Phoenix 5-pin male composite input | XLR 3-pin female input with male loop output | |||
Input Impedance | 10 kΩ differential between Audio (+) and Audio (–) | ||||
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 | |||
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. | ||||
AMPLIFIER | |||||
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 |
Total Output Power5 | 600 W peak | 600 W peak | 550 W peak | 1000 W peak | 1000 W peak |
THD, IM, TIM | < 0.02% | ||||
Cooling | Convection | ||||
POWER | DC POWER | AC POWER | |||
Connector | One Phoenix 5-pin male composite input (see Wiring above) | Two Phoenix 5-pin male6 | powerCON 20 input with loop output | ||
Voltage Requirements7 | 48 V DC (Meyer Sound IntelligentDC External Power Supply Required) | N/A | |||
Automatic Voltage Selection | N/A | 90–265 V AC | |||
Safety Agency Rated Voltage Range | N/A | 100–240 V AC, 50–60 Hz | |||
Turn-on and Turn-off Points | N/A | 90 V AC turn-on, no turn-off; internal fuse- protection above | |||
CURRENT DRAW | |||||
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 | |||
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 | |||
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 | |||
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 | |||
Inrush Current | N/A | <20.0 A peak | |||
RMS NETWORK | |||||
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 | ||||
PHYSICAL | |||||
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) |
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) |
Enclosure | Premium multi-ply birch with slightly textured black finish | ||||
Grille Frame | Acoustically transparent, detachable, black cloth-covered frame | ||||
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 |
ACCESSORY APPLICABILITY | |||||
FMB-HMS Fixed Bracket | √ | √ | √ | √ | √ |
AMB-HMS Adjustable Bracket | √ | √ | √ | √ | √ |
HY-HMS Half Yoke | √ | √ | √ | ||
MYA-HMS-15 Yoke | √ | √ | |||
MUB-HMS U-Bracket | √ | √ | √ | ||
MUB-HMS15 U-Bracket | √ | √ | |||
WH-HMS Wall Hinge Bracket | √ | √ | √ |
Notes

Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.
Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.
Free-field, measured with 1/3 octave frequency resolution at 4 m.
Linear Peak SPL is measured in free-field at 4 m referred to 1 m. Loudspeaker SPL compression measured with M-noise at the onset of limiting, 2-hour duration, and 50 °C ambient temperature is < 2 dB.
M-noise is a full bandwidth (10 Hz–22.5 kHz) test signal developed by Meyer Sound to better measure the loudspeaker’s music performance. It has a constant instantaneous peak level in octave bands, a crest factor that increases with frequency, and a full bandwidth Peak to RMS ratio of 18 dB. The presence of a greater-than (>) symbol with regard to crest factor indicates it may be higher depending on EQ and boundary loading.
Pink noise is a full bandwidth test signal with Peak to RMS ratio of 12.5 dB.
B-noise is a Meyer Sound test signal used to ensure measurements reflect system behavior when reproducing the most common input spectrum, and to verify there is still headroom over pink noise.
Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.
The HMS-15 must be connected to two adjacent channels of the MPS IntelligentDC power supply.
AC power cabling must be of sufficient gauge so that under burst current rms conditions, cable transmission losses do not cause the loudspeaker’s voltage to drop below the specified operating range.