OWI AMP04TRP User manual

Installation Instructions
Model AMP04TRP
SELF-AMPLIFIED TRUMPET SPEAKERS
Established 1978
OWI Incorporated
17141 Kingsview Ave. Carson CA 90746 USA
Tel. [phone]
www.owi-inc.com
Technical Support: 310-515-1900

CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK
DO NOT REMOVE COVER (OR BACK)
NO USER-SERVICEABLE PARTS INSIDE
REFER SERVICING TO QUALIFIED PERSONNEL
The lightning flash with arrowhead symbol within an equilateral triangle 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.
The exclamation point within an equilateral triangle is intended to alert the user of the presence of
important operating and maintenance (servicing) instructions in the literature accompanying the
appliance.
The apparatus shall not be exposed to dripping or splashing and that no objects filled with liquids, such as
vases, shall be placed on the apparatus.
IMPORTANT SAFETY INSTRUCTIONS
1. Read these instructions - All the safety and operation instructions should be read before this OWI product is
operated.
2. Keep these instructions - The safety and operating instructions should be kept for future reference.
3. Heed all warnings - All warnings on this product and in these operating instructions should be followed.
4. Follow all instructions - All operating and other instructions should be followed.
5. Do not use this apparatus near water - for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a
wet basement, near a swimming pool, swamp or salivating St. Bernard dog, etc.
6. Clean only with dry cloth.
7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions. - This OWI
product should be situated so that its location or position does not interfere with its proper ventilation. For
example, the Component should not be situated on a bed, sofa, rug, or similar surface that may block any
ventilation openings, or placed in a built-in installation such as a bookcase or cabinet that may impede the
flow of air through ventilation openings.
8. Do not install near any heat sources such as radiators, heat registers, stoves or other apparatus (including
amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wider
blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and
the point where they exit the apparatus.
11. Only use attachment/accessories specified by the manufactures.
12. Use only with the cart, stand, tripod, bracket or table specified by the manufacturer, or sold
with the apparatus. When a cart is used, use caution when moving the cart/apparatus
combination to avoid injury from tip-over.
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13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. 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. The user should not attempt to service this OWI product beyond those means described
in this operating manual. All other servicing should be referred to the OWI Service Department.
15. To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.
16. 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.
17. Exposure to extremely high noise levels may cause permanent hearing loss. Individuals vary considerably
in susceptibility to noise-induced hearing loss, but nearly everyone will lose some hearing if exposed to
sufficiently intense noise for a period of time. The U.S. Government's Occupational Safety and Health
Administration (OSHA) has specified the permissible noise level exposures shown in the following chart.
According to OSHA, any exposure in excess of these permissible limits could result in some hearing loss.
To ensure against potentially dangerous exposure to high sound pressure levels, it is recommended that all
persons exposed to equipment capable of producing high sound pressure levels use hearing protectors while
the equipment is in operation. Ear plugs or protectors in the ear canals or over the ears must be worn when
operating the equipment in order to prevent a permanent hearing loss if exposure is in excess of the limits
set forth here.
18. OWI recommends that this apparatus is to be placed on a switched power outlet, one that switches both
sides of the line and has contact separation of at least 3mm.
Duration Per Day Sound Level dab Typical
In Hours Slow Response Example
8 90 Duo in small club
6 92
4 95 Subway Train
3 97
2 100 Very loud classical music
1.5 102
1 105 Patrice screaming at Ron about deadlines
0.5 110
0.25 or less 115 Loudest parts at a rock concert

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Description:
The optional amplifier is housed in an all-metal cap with electronics inside. It acts as a
convenient heat sink for the internal amplifier. While an AC 12 volt power supply is provided, it
is capable of being powered by a DC or AC power supply with a voltage not to exceed 14 volts.
A power supply of up to 5 Amps is suitable. The amplifier accepts a balanced audio input for
maximum noise rejection.
It has a high quality powder coat providing maximum durability. The power kit comes
with mounting screws.
Amplifier Specifications:
Power 25 watts
Frequency response 20 Hz to 30kHz +0-2dB
Noise Floor Better than 90 dB
Distortion Better than .1 % at 10 watts
Input Line input -10 to +4dB
Input configuration Differential, Balanced and DC isolated
Volume control Step for mechanical level memory
Protection Short circuit, heat and over current
Power supply 12 volts UL Listed
Maximum power supply wire length 400 ft with 16 gauge wire.
Multiple amplifiers Yes, Line input in parallel
Each amplifier may power Four non-amplified speakers total
Input/Output Each amplifier has a line level input and output
Connector type Phoenix Connector
Conduit Entry Two ½” in conduit access holes with knock outs
Typical Line level sources CD player, Audio mixer, Background music service,
Telephone PBX dry audio pair hooked to the balanced +,-
input. There is no shield on a telephone input.
Hook up for additional horns Wired through the conduit entry, use the 4 way binding
posts for additional high level speakers hooked up to the
amplifier.
For four horns Wire them series parallel to achieve a 4 ohm load
impedance.
Color White
Warranty 1 Year

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Trouble Shooting Guide
1. No output: Disconnect any secondary speakers and check for operation of the primary speaker only. If still
there is no output, check for loose screws on the green input connector. It is easy to think the wires are secure
in the connector and one wire is not. Tug on each wire to make sure each is tight.
2. Intermittent output: Check for shorted output causing the amplifier to into and output protection. Check each
input wire for loose screws.
3. Distortion: Do not power more than one AMP04TRP on one power supply. While it will work, it will cause
distortion.
4. No output, check to see that the power on light is on. It is located on the main PCB. If it is off, the power
supply is either bad or has come loose in the power socket.
5. Hum, for single ended inputs, there is a need for a jumper between – and the ground screw. Most of the time,
the jumper is needed.
LIMITED WARRANTY
1. The AMP04TRP product has been thoroughly tested and inspected at the factory. It is warranted for one (1)
year from date of purchase.
IT IS THE OWNERS’ RESPONSIBILITY TO ESTABLISH THE DATE OF PURCHASE BY
ACCEPTABLE EVIDENCE AT TIME SERVICE IS SOUGHT.
2. Any unit, which in the judgment of OWI INC. is defective or develops defects under normal use will be
replaced or repaired without cost within the warranty period.
3. This warranty will be considered void if unit has been dropped, misused, abused, altered in any manner,
overdriven with excessive amplification exceeding manufacturer’s specification, improperly serviced or
accidental damage.
4. OWI Inc. shall have no liability whatsoever for consequential damage. The sole responsibility and discretion
of OWI Inc. under this warranty shall be limited to the repair of the product or replacement thereof.
5. IMPORTANT: This warranty is void unless the attached card is completed and mailed to OWI Inc. within 10
days following the date of purchase. Units must be sent to OWI Inc. or to the dealer where purchased.

OWI INCORPORATED Date Purchased: _____________________
17141 Kingsview Ave Model Number: _____________________
Carson, CA 90746 Serial Number: _____________________
(Keep this part for your record)
-----------CUT AND MAIL--------------------------------------------
OWI INCORPORATED
17141 Kingsview Ave
Carson, CA 90746
LIMITED WARRANTY
(Self-Amplified Speaker)
Model Number:_______________________________________________
Model Name: ________________________________________________
Serial No.____________________________________________________
Date of Purchase: Month: ________________ Day _____ Year _________
Owner’s Name:_______________________________________________
Address: ________________________________________________
City: __________________________ State _______ Zip__________
Dealer’s Name: _____________________ City___________ State ______
Purchased from (please check one):
Video __, Electronic __, Mail Order __, Mass Merchandiser __, Installer __
Others (please specify) __________________________________________
Remarks: _____________________________________________________
_____________________________________________________________
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OWI INC.
LIMITED FIVE YEAR WARRANTY
(NON-AMPLIFIED TRUMPET TRP04 SPEAKER)
1. Your OWI speakers have been thoroughly tested and inspected at the factory. They are warranted for 5 years
from the date of purchase. It is the owner's responsibility to establish the date of purchase by acceptable
evidence at the time service is sought.
2. If the speaker proves to be defective in materials or workmanship within five years from the date of the original
customer purchase, OWI, at its sole option may repair or replace the unit with a current model of equal or
greater value. In some cases where a new model is substituted, a modification to the mounting surface may be
required. If mounting surface modification is required, OWI assumes no responsibility or liability for such
modification.
3. Exclusion of certain damages
Liability for any defective product is limited to repair or replacement of the product at our option. OWI Inc.
shall have no liability whatsoever for any incidental or consequential damages of any kind of character because
of product defect. The sole responsibility of OWI Inc. under this warranty shall be limited to the repair of
the product or replacement thereof, and is the sole discretion of OWI Inc. Some states do not allow
limitation on how long an implied warranty lasts and/or do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation may not apply.
4. This warranty does not cover:
a. Damage caused by abuse, accident, misuse, negligence, improper operation(installation), overdriven with
excessive amplification.
b.Products that have been altered or modified.
c. Any product whose serial number has been altered or removed.
d.Normal wear and maintenance.
e. Damages caused by shipping. All claims for shipping must be made with the carrier.
5. What OWI Inc. will pay for and what YOU must pay for:
OWI will repair or replace unit(s) covered by this warranty without charge to the customer for labor or
materials. You are responsible for any installation or removal charges and for any initial shipping
charges, if the unit(s) must be shipped for warranty service. However, OWI Inc. will pay the return shipping
charges to any destination within the USA, if the repairs are covered by the warranty.
6. Warranty Service
Units for warranty repair must be sent to OWI Inc., or to the dealer where purchased, postage prepaid. Copy of
original proof of purchase to be included with the speaker(s).
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