Meyer Sound MSL-2A User Manual

Meyer Sound Laboratories, Inc.

The MSL-2A is a high-powered, wide-

voltage gain of 10␣dB (minimum) to 32␣dB

Features

MSL-2A

High Power
Loudspeaker

Efficient high power

Arrayable

Wide horizontal coverage

Flat frequency response

Rugged and reliable

Applications

Touring reinforcement

Live music clubs

Theatre PA systems

Side fill in concert reinforcement

High powered announcing

Music playback in discos

coverage loudspeaker for professional
sound reinforcement applications. Specifi­cally designed for touring reinforcement,
the accurate, rugged MSL-2A is a biampli­fied system consisting of a proprietary 15­inch low-frequency driver in a vented en­closure, and a 70-degree high-frequency
horn with 2-inch (throat diameter) driver.

The MSL-2A’s drivers provide excep­tional efficiency and power handling, with
low distortion for maximum clarity.

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Inches

The sturdy, multi-ply hardwood enclo­sure with textured finish is designed to
withstand road abuse. The MSL-2A comes
with handles and, optionally, aircraft-style
rigging pan fittings or nut plates.

The MSL-2A requires a high-quality
professional stereo power amplifier capable
of delivering up to 600 watts per channel
continuously into 8 ohms, with a signal

(maximum).

2832 San Pablo Avenue
Berkeley, CA 94702
[phone]
FAX [phone]

MSL-2A Specifications

Acoustical – MSL-2A/S-1 System

Frequency Response
Maximum SPL

1

2

40 Hz to 18 kHz +4 dB

Continuous 130 dB
Peak 139 dB

Maximum Peak (Music Signal) 144 dB
HF Coverage, -6dB points 70° horizontal x 60° vertical
Acoustical Crossover Frequency 900 Hz

MSL-2A Loudspeaker

Transducers

Low Frequency MS-15 15-inch cone driver, 8 ohms

High Frequency MS-2001A 2-inch throat compression driver, 8 ohms
High-Frequency Horn 70 degree modified radial
HF Network DC blocking capacitor
Enclosure 2.3 cu. ft. vented, multi-ply Finnish birch plywood
Finish Black textured
Protective Grill Hex perforated metal, powder coated, charcoal-

grey foam covering
Connector EP-4 male (EP-5 male, Europe only)
Rigging (optional) Aircraft pan fittings,
Physical Dimensions 21

1

⁄4" W x 241⁄4" H x 181/4" D

3

⁄8"-16 or M10 x 1.5 nut plates

Weight 82 lbs. (37 kg)

S-1 Control Electronics Unit

Input Type

3

Active balanced ISO™ input, 10k ohms, 5k ohms per leg
Output Type Active push-pull, will drive 600 ohms
Maximum Input/Output Level

Balanced +26 dBu

Unbalanced +20 dBu
Hum and Noise
Dynamic Range 108 dB
Sense Inputs 100k ohms true differential
Low-Frequency Delay Type Active all-pass
Driver Protection Circuitry

Low Frequency RMS limiter and excursion limiter

High Frequency RMS limiter and excursion limiter

Indicators

Sense/Gain Detect, Hi and Lo Red /Green LEDs

Limit, Hi, Lo, and VHF Red LEDs

Safe Green LED

Power Supply Green LED
Controls

Front Panel Input attenuator, AC power switch

Preset Panel Lo Cut switch, Safe switch, VHF switch, VHF control
Connectors

Balanced Inputs/Outputs 3-pin XLR (A-3)

Sense Inputs Banana jacks
Power 90-125/180-250V AC, 50/60 Hz (rear-panel switchable)
Physical Dimensions 19" W x 1
Weight 8 lbs. (3.6 kg)

4

<-90 dBV

Note 1:
Measured 1 meter on-axis to

high horn, half-space con–
ditions, pink noise input, in
third-octave bands.

Note 2:

VHF Peak limiter

Loudspeaker driven with “A”
weighted noise (peak-to-RMS
ratio
rated at 600 W/channel at
8␣ohms. The MSL-2A will ac­commodate amplifiers capable
of output levels up to

Note 3:
ISO™ input: Pins 1, 2 and 3 are

transformer isolated, shell is
connected to chassis/AC mains
ground.

3

⁄4" H x 73⁄4" D standard rack mount

Note 4:
“A”- weighted, unbalanced.

≈

12 dB), with amplifier

±

140 vpk.