Meyer Sound
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Industrial Series: MM-4XP | MPS-488 | MPS-481 | MM-4 | Stella-4 | Stella-4C | Stella-8C | Stella-188 | MVC-5 | SB-1 | SB-2

Specifications

Acoustical (each loudspeaker) (Note 1)
Operating Frequency Range (Note 2)
 ...
 130 Hz -18 kHz
  ±4 dB 150 Hz - 13 kHz
  -6 dB at 130 Hz & 18 kHz
Phase Response
 ... ±35° 400 Hz - 11 kHz
Maximum SPL
 ... 143 dB @ 1 meter
Dynamic Range
 ... >110 dB
Coverage
...
 20° Symmetrical 1 kHz - 16 kHz
Crossover
...
 1.5 kHz
Transducers
Low Frequency
 ...
 Twenty-eight 4" cone drivers
High Frequency
 ... 2" Throat, 4" diaphragm compression driver
Audio Input
Type
 ...
 10 k Ω impedance, electronically balanced
Connector
 ... Female XLR input and male XLR loop output or VEAM
Nominal Input Level
 ... +4 dBu
Amplifiers
Type
 ...
 Complementary power MOSFET output stages (audio class AB/H)
Burst capability (Note 3)
 ... 1240 Watts (620 watts/channel)
THD, IM, TIM
 ... < 0.02 %
AC Power
Connector
 ...
 250 V NEMA L6-20P (twistlock) inlet, IEC 309 male inlet or VEAM (Note 4)
Automatic voltage selection
 ... 85 - 134 VAC; 165 - 264 VAC; 50/60 Hz (Note 5)
Operational voltage range
 ... Turn on: 85 VAC; Turn off: 134 VAC; 50/60 Hz
... Turn on: 165 VAC; Turn off: 264 VAC; 50/60 Hz
Max.Continuous RMS Current (>10 sec)
 ... @ 115 V: 8 A rms
@ 230 V: 4 A rms
@ 100 V: 10 A rms
Burst RMS Current (<1 sec)
 ... @ 115 V: 15 A rms
@ 230 V: 8 A rms
@ 100 V: 18 A rms
Max Peak Current During Burst
 ... @ 115 V: 22 A pk
@ 230 V: 11 A pk
@ 100 V: 25 A pk
Inrush Current
... <12 A @ 115 V
Physical
Dimensions
 ... 46.47" w x 43.75" h x 31.22" d
(1180 mm x 1111 mm x 793 mm)
Weight
 ... 220 lbs (99.80 kg)/shipping: 437 lbs (198.22 kg)
Enclosure
 ... Fiberglass
Finish
 ... Black textured
Protective Grille
 ... Hex perforated metal screen, foam covering
Rigging
 ... Rigging yoke mounts a single SB-2,allowing horizontal and vertical angle adjustments
Architect Specifications

The loudspeaker shall be a self powered, high Q, vocal range system. The transducers shall consist of twenty-eight 4-inch diameter cone drivers and a 4-inch diaphragm compression driver on a 20° x 20° symmetrical horn.

The loudspeaker system shall incorporate internal processing electronics and a two-channel amplifier. Processing functions shall include equalization, phase correction and signal division for the high and low frequency sections. The crossover point shall be 1.5 kHz. Each amplifier channel shall be class AB/bridged with complementary MOSFET output stages. Burst capability shall be 620 watts each (1240 watts total) with nominal 8 ohm resistive load. Distortion (THD, IM, TIM) shall not exceed 0.02%. Protection circuits shall include TruPower Limiting.

Performance specifications for a typical production unit shall be as follows, measured at 1/3 octave resolution in fixed ISO bands: Operating frequency range shall be 150 Hz to 18kHz (–6dB points). Phase response shall be ±35° from 400 Hz to 11 kHz. Maximum SPL shall be 143 dB at 1 meter. Beamwidth shall be 20° ±5° from 1000 Hz to 16 kHz.

The audio input shall be electronically balanced with a 10k ohm impedance and accept a +4dBu (1.23Vrms) signal. Connector shall be XLR (A-3) type. RF filtering shall be provided, and CMRR shall be greater than 80 dB from 50 Hz – 1 kHz.

The internal power supply shall perform automatic voltage selection, EMI filtering, soft current turn-on and surge suppression. Powering requirements shall be nominal 100V, 110V or 230V AC line current at 50 Hz or 60 Hz frequency. Operating ranges shall be 95V to 125V (100V or 120V nominal), and 208V to 235V (230V nominal). Maximum peak current draw during burst shall be 22A at 115V, 11A at 230V and 25A at 100V. Current inrush during soft turn-on shall not exceed 12A at 115V. AC power connector shall be a locking connector.

The loudspeaker system shall provide facilities for installing Meyer Sound’s optional RMS remote monitoring and control system.

All loudspeaker components shall be mounted in a parabolic dish enclosure constructed of fiberglass and multi-ply hardwood birch with a hard, waterproof and damage resistant black textured finish. The front protective grille shall be perforated steel. Dimensions shall be 46.47” wide x 43.75” high x 31.22” deep (1180 mm x 1111mm x 793 mm). Weight shall be 220 lbs (99.80 kg).

The loudspeaker shall be the Meyer Sound Model SB-2.
Notes

1. Measured at 4 meters on axis, free field conditions, with pink noise input in third-octave bands.

2. Response depends on loading conditions and room acoustics.

3. Nominal 8Ω resistive load, pink noise, 100V peak.

4. Other connectors available. For European installations, an IEC 309 connector (16A) can be installed.

5. The unit is rated at 88-125V and 182-235V, 50/60 Hz, to satisfy EC standards for -10% to +6% AC line voltage.
 

Specifications

Datasheet (PDF)

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