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MS-50BT/MS-50WT
Heavy-Duty Monitor Speaker
Copyright 2004 Inter-M Corporation
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
Contents
Welcome ..................................................................................................................................... 3
Unpacking ............................................................................................................................... 3
Warnings .................................................................................................................................. 3
Heavy-Duty Monitor Speaker................................................................................................. 5
Features ....................................................................................................................................... 5
Setup and Operation.................................................................................................................. 6
Connecting your Speaker System ............................................................................................ 7
Choosing the Correct Speaker Cable................................................................................... 7
Speaker Connection Procedures .......................................................................................... 7
Maintaining Proper Polarity .................................................................................................... 8
Choosing the Correct Amplification...................................................................................... 8
Using Multiple Loudspeakers.................................................................................................. 8
Specifications.............................................................................................................................. 9
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
Welcome
A personal welcome to you from the management and employees of Inter-M
Thank you for purchasing this fine Inter-M product. All of us here at Inter-M are dedicated
to providing you with the highest quality products and the best value.
We sincerely trust this product will provide you with years of satisfactory service, but if
anything is not to your complete satisfaction, we will endeavor to make things right.
Welcome to Inter-M, and thank you for becoming a part of our worldwide extended
family!
Unpacking
Although your MS-50BT/MS-50WT Heavy-Duty Monitor Speaker is neither complicated nor
difficult to operate, we recommend you take a few minutes to read this brief manual
and familiarize yourself with the important information regarding product features, setup
and operation.
We strongly recommend you retain the original packaging. In the unlikely event the
product must be returned for servicing, the original packaging (or reasonable
equivalent) is required.
Warnings
Environment
Never place this product in an environment that could alter its performance or reduce its
service life. Such environments are usually characterized by high levels of heat, dust,
moisture, or vibration.
Safety
1. Read these instructions carefully.
2. Follow all instructions.
3. Keep all warnings.
4. Clean only with a damp cloth.
5. Install only in accordance with the instructions in this manual.
6. Do not install near any heat sources such as radiators, heat registers, stoves, or other
devices (including amplifiers) that produce heat.
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
7. Use only the attachments/accessories specified.
8. Use only with a cart, stand, tripod, bracket, or table specified, or sold with the
apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid overturning.
9. Unplug this apparatus during lightning storms or when unused for long periods of
time.
10. Refer all servicing to qualified service personnel. Servicing is required when the
apparatus has been damaged in any way, such as power supply cord or plug is
damaged, liquid has been spilled or objects have fallen into the apparatus, the
apparatus has been exposed to rain or moisture, does not operate normally, or
has been dropped.
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
MS-50BT/MS-50WT
Heavy-Duty Monitor Speaker
Features
Stylish
• Sleek, stylish design blends with most environments.
Durable
• Aluminum alloy construction and anti-rust coating for long life and durability.
Versatile
• Full-range speaker system and matching transformer for high efficiency PA system
performance at High or Low Impedance.
Easy Installation
• Free standing, or use with optional FSB-1 mounting bracket.
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
Setup and Operation
Your MS-50BT/MS-50WT Heavy Duty Monitor Speakers can be placed on a table top or
other surface, or attach the speakers to a wall or other secure surface with the optional
FSB-1 mounting bracket.
WARNING: under no circumstances should any loudspeaker be mounted or suspended
in a public place unless the mounting method has been approved and certified by a
qualified engineer. Failure to properly secure the system can result in damage to the unit
or personal injury.
The MS-50BT/MS-50WT can operate at a rated input of 20W/4Ω, or in a 100V distributed
system.
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
Connecting your Speaker System
Always switch off the power to the amplifier before connecting speakers.
Choosing the Correct Speaker Cable
It is important to choose cabling designated for audio use and good quality connectors.
Using guitar cable or zip cord (designed for lamps and other electrical use) or poor
quality connectors will degrade your loudspeakers’ audio performance. For distributed
loudspeaker systems, we recommend stranded twisted pair speaker cable with an
overall vinyl jacket (plenum rated when installed in required installations).
Always use the appropriate gauge of speaker cable. For cable runs of less than 25 feet
(7.5 meters), 18- gauge cable is adequate. For longer cables, we suggest 16-gauge
stranded cable.
For installations where the speaker cable will be exposed to high traffic or weather
conditions such as moisture or extreme temperatures, we recommend you use weatherresistant rubber jacketed cable, such as type S, SO or SJ cable.
Speaker Connection Procedures
After removing approximately 10mm (1/4-inch) of insulation from the ends of the speaker
cables, twist the strands tightly and then twist together with the distribution cable(s), using
an appropriate cable connector.
Make certain the wires do not protrude from the cable connector and touch any metal
on the speaker chassis, or any other adjacent metal.
Connect speaker wires to the appropriate terminals for your mode of operation, as
shown in the illustration below.
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
Maintaining Proper Polarity
It is very important to wire your speakers consistently in order to maintain proper
polarity. All quality cables are manufactured with clear markings to identify the
different conductors – normally by color-coding, printed markings, or textured ribbing
on the cable’s jacket material. Failing to do so will cause your speakers to operate
out of phase, resulting in significantly reduced low-frequency output from your
system.
Choosing the Correct Amplification
When selecting an amplifier for use with your speaker system, it is important to choose an
amplifier that has sufficient power output.
Choosing an amplifier that does not have adequate rated power may result in pushing
the amp beyond its limits, producing distortion or “clipping” of the signal. This can irritate
the listener and may cause damage to the speaker.
Choosing an amplifier that is over-powered can result in over-driving the speaker system.
Using Multiple Loudspeakers
It is important to consider the overall speaker load (impedance) when connecting
distributed speaker systems to an amplifier. Some distributed loudspeakers are marked in
load impedance; others show the wattage taps. Whatever the case, it is easy to
compute the total impedance (or wattage load) that is possible for a given amplifier.
Alternatively, the MS-50BT/MS-50WT can operate in a distributed system at 100V.
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
Specifications
ELECTRICAL
Rated Input 20W/4Ω or 20W/100V distributed
Frequency Response 120Hz – 20kHz
SPL (1W/1m) 90dB
Color
MS-50BT Black
MS-50WT White
Dimensions 150(W) x 240(H) x 150(D)mm/
5.9(W) x 9.4(H) x 5.9(D) in.
Weight 3.2kg / 7.1lbs.
Specifications and design subject to change without notice for improvements.
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MS-50BT/MS-50WT Heavy-Duty Monitor Speaker
Inter-M, Ltd. (Korea) began operations in 1983.
Since then, Inter-M has grown to become one of the largest manufacturers
of professional audio and commercial sound electronics equipment in the world.
Inter-M has gained worldwide recognition for its own branded products,
as well as private label manufacturing of electronics sold under other names (OEM).
The company is no longer just a Korean company, but rather a global company
that is truly international in scope, with factories and offices in Korea and China,
and sales and marketing operations located in Japan, Europe, and the U.S.A.
With more than 850 employees around the globe, Inter-M is well-poised for further growth and
expansion.
INTER-M AMERICAS, INC.
1 EAST BEACON LIGHT LANE, CHESTER, PA, USA 19013-4409
TEL: (610) 874-8870, FAX: (610) 874-8890
Home Page:http://www.inter-m.net, E-mail: service@inter-m.net
INTER-M Corporation
SEOUL OFFICE: 653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL: 82-2-2289-8140~8, FAX: 82-2-2289-8149
Home Page:http://www.inter-m.com, E-mail: export@inter-m.com
0804MS50BTWT PRINTED IN KOREA
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