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Meyer Sound Documentation

Specifications
In this section:
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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°

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
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  1. Loudspeaker system predictions for coverage and SPL are available in Meyer Sound’s MAPP System Design Tool.

  2. Recommended maximum operating frequency range. Response depends on loading conditions and room acoustics.

  3. Free-field, measured with 1/3 octave frequency resolution at 4 m.

  4. 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.

  5. Peak power based on the maximum unclipped peak voltage the amplifier will produce into the nominal load impedance.

  6. The HMS-15 must be connected to two adjacent channels of the MPS IntelligentDC power supply.

  7. 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.