Msl-3a specifications – Meyer Sound Reinforcement Loudspeaker MSL-3A User Manual
Page 2

Acoustical – MSL-3A/M-3A System
Frequency response
1
75-18k Hz
±
4 dB
Maximum SPL
2
Continuous
130 dB
Peak
135 dB
HF Coverage
Horizontal
70 degrees
Vertical
60 degrees
Acoustical Crossover Frequency
800 Hz
MSL-3A Loudspeaker
Transducers
Low Frequency
(2) MS-12 12-inch cone drivers, 8 ohms per driver
High Frequency
MS-2001A 2-inch throat (4" diaphragm) driver, 12 ohms
High-Frequency Horn
70-degree modified radial
HF DC Protection
20
µ
F Polypropylene capacitor
Enclosure
Vented, horn loaded, multi-ply Finnish birch
Finish
Black textured, charcoal-grey carpet (optional)
or black weather protected (optional)
Physical Dimensions
21
1
⁄
4
" W x 56
3
⁄
4
" H x 30" D
Weight
241 lbs. (109.3 kg)
Protective Grill
Hex perforated metal screen, damped,
charcoal-grey foam covering
Connector
EP-4 male, EP-5 male (Europe only),
Pyle National (optional)
Rigging (optional)
Aircraft pan fittings, 600 lbs. safe working load each
M-3A Control Electronic Unit
Input Type
3
Balanced ISO-Input,
™
10k ohms
Output Type
Active, push-pull, 200 ohms output impedance
Maximum Input Level
Balanced
+23 dBu
Unbalanced
+23 dBu
Maximum Output Level
4
Balanced
+26 dBu
Unbalanced
+20 dBu
Hum and Noise
5
-90 dBV
Dynamic Range
6
>110 dB
Sense Inputs
10K ohms true differential, opto-isolated
Electrical Crossover Frequency
800 Hz
High Frequency Delay Type
Active all-pass
Driver Protection Circuitry
Low Frequency
RMS limiter
High Frequency
RMS limiter
VHF Peak limiter
Indicators
Sense; Hi and Lo
Green/ Red LEDs
Limit; Hi, Lo, and VHF
Red LEDs
Safe
Green LED
Power
Green/Red LEDs
Controls
Front Panel
Input attenuator, AC power switch
Preset Panel
Lo Cut switch, Safe switch, HF EQ Switch
VHF Var/Cal switch, VHF control
MSL-3A Specifications
Note 1:
Measured 1 meter on-axis,
half-space conditions,
pink noise input, in third-
octave bands.
Note 2:
Loudspeaker driven with “A”
weighted noise (peak-to-RMS
ratio
≈
12␣dB), with power
amplifier rated at 400W per
channel at 4 ohms.
Note 3:
ISO™ Input: Pins 1, 2 and 3
are transformer-isolated, and
shell is connected to chassis/
AC earth ground. Pin 3 positive
for positive pressure output.
Note 4:
800 Hz (worst case frequency
both channels), <0.1% THD.
Note 5:
“A”-weighted, unbalanced.
Note 6:
“A”-weighted noise floor to
maximum output at 800 Hz.