Inter-m HS-50 User manual

MADE IN KOREA
December 2004 9007003300
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 : [phone], FAX : [phone]
Home Page : http://www.inter-m.net, E-mail : [email protected]
INTER-M Corporation
SEOUL OFFICE:653-5 BANGHAK-DONG, DOBONG-KU, SEOUL, KOREA
TEL : [phone]~8, FAX : [phone]
Home Page : http://www.inter-m.com, E-mail : [email protected]

HS-50 Paging Horn Speaker
B370031OC03OC03
0210

Contents
Contents
Welcome
Warning.........................................................................................................................................1
Unpacking......................................................................................................................................2
Installation
Environment....................................................................................................................................2
Important Safety Instructions.............................................................................................................2
Features............................................................................................................................................3
Setup and Operation.....................................................................................................................4
Connecting your Speaker System................................................................................................5
Polar Pattern Diagram ..................................................................................................................6
Specifications ..................................................................................................................................7
Service
Procedures......................................................................................................................................8
Schematic.......................................................................................................................................8
Parts List .........................................................................................................................................8
Variations and Options .................................................................................................................8
Warranty .........................................................................................................................................8

1
HS-50
PAGING HORN SPEAKER
Welcome
Welcome
A personal welcome to you from the management and employees of Inter-M
All of the co-workers here at Inter-M are dedicated to providing excellent products with inherently good value,
and we are delighted you have purchased one of our products.
We sincerely trust this product will provide 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 part of our worldwide extended family!
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK.
DO NOT REMOVE COVER (OR BACK).
NO USER-SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING
To prevent fire or shock hazard, do not
expose the unit to rain or moisture.
*Do not install this equipment in a confined space such as a book case or similar unit.
*The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such vases, shall be placed on the apparatus.
*Worded: “WARNING FOR YOUR PROTECTION PLEASE READ THE FOLLOWING-WATER AND MOISTURE: Unit should not be used
near water(e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care should be taken
so than objects do not fall and liquids are not spilled into the enclosure through openings.”
This symbol is intended to alert the user to the
presence of uninsulated “dangerous voltage” within
the product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock to
persons.
This symbol is intended to alert the user to the
presence of important operation and maintenance
(servicing) instructions in the literature accompanying
the appliance.
Caution: To prevent electric shock do not use this (polarized) plug with
an extension cord, receptacle or other outlet unless the blades
can be fully inserted to prevent blade exposure.
Attentions: Pour prévenir les chocs électriques ne pas utiliser cette
fiche polarisée avec un prolongateur, une prise de courant
on une autre sortie de courant, sauf si les lames peuvent
étre insérées à fond sans en laisser aucune partie à
découvert.

2HS-50
PAGING HORN SPEAKER
Installation
Installation
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.
Important Safety Instructions
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.
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.
S3125A
S3125A
Unpacking
Although your HS-50 Paging Horn 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.

3
HS-50
PAGING HORN SPEAKER
Features
Features
- Excellent Intelligibility and Loudness
- Wide Dispersion Pattern
- High Directivity
- Superior Reliability

4HS-50
PAGING HORN SPEAKER
Setup and Operation
Setup and Operation
After unpacking your HS-50 Paging Horn Speakers, attach the speakers to a wall or other secure surface using
the integrated mounting bracket, as shown in the illustration below.
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.
Mounting Bracket

5
HS-50
PAGING HORN SPEAKER
Connecting your Speaker System
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, 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 weather-resistant 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.
- 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 distributed 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.

6HS-50
PAGING HORN SPEAKER
Polar Pattern Diagram
Polar Pattern Diagram
-35
-30
-25
-20
-15
-10
-5
0
5
0
30
60
90
120
150
180
210
240
270
300
330
500Hz
1000Hz
2000Hz
4000Hz

7
HS-50
PAGING HORN SPEAKER
Specifications
Specifications..............................................................0dB=0.775Vrms
- ELECTRICAL
Rated Input...........................................................................................................................................50W
Impedance .....................................................................................................................200Ω(W), 400Ω(G)
Frequency Response ...............................................................................................................380Hz-6.5kHz
SPL(1W/1m)......................................................................................................................................105dB
- GENERAL
Weight....................................................................................................................................3.1kg/6.83lb
Dimensions .....................................................................................320(ø) x 350(D) mm/12.6(ø) x 13.8(D)in
* Specifications and design subject to change without notice.

8HS-50
PAGING HORN SPEAKER
Service
Service
Procedures
Ensure the problem is not related to operator error, or system devices that are external to this unit. Information
provided in the troubleshooting portion of this manual may help with this process. Once it is certain that the
problem is related to the product contact your warranty provider as described in the warranty section of this
manual.
Schematic
A Schematic is available by contacting your warranty provider.
Parts List
A Parts List is available by contacting your warranty provider.
Variations and Options
Variations and Options
Variations
Products supplied through legitimate sources are compatible with local AC power requirements.
Options
No optional items are available for this product.
Warranty
Warranty
Warranty terms and conditions vary by country and may not be the same for all products. Terms and conditions
of warranty for a given product may be determined first by locating the appropriate country which the product
was purchased in, then by locating the product type.
To obtain specific warranty information and available service locations contact Inter-M directly(in Korea or the
USA) or the authorized Inter-M Distributor for your specific country or region.