wheelock TPA-60, TPA-100 INSTALLATION INSTRUCTIONS

273 Branchport Avenue
Long Branch, NJ 07740
[phone]

INSTALLATION INSTRUCTIONS

MODEL TPA-60/TPA-100

PAGING AMPLIFIERS

GENERAL APPLICATION INFORMATION
Wheelock's models TPA-60 and TPA-100 paging amplifiers are rated at 60 watts RMS and 100 watts RMS respectively.

These amplifiers afford a choice of five different inputs: two microphone inputs, one telephone input, and two background
music inputs. Only three of these inputs can be used actively at one time: one microphone, a choice of a second
microphone or telephone input, and a choice of one background music input applied through either AUX. 1 or AUX. 2.
Note that the background music will automatically be muted whenever a page is generated, from either a microphone or
telephone input.

An automatic volume limiter compensates for the varying voice levels and paging styles that may have access to a
system.

The amplifiers feature individual input volume controls, as well as a master volume control, individual treble and bass
controls, or low-cut horn protect switch, two input selector switches, an illuminated power on switch and a peak level
indicator.

Both models operate from 120 volts, 60Hz and have a power consumption of 180 watts (TPA-60) and 250 watts (TPA-

100). The units have an AC circuit breaker on the line input side, as well as a thermal breaker for overload protection on
the output. The AC circuit breaker is manually resettable. However, in the event it does not reset, have the trouble
investigated by an authorized service technician or return unit to the factory.

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,

DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.

INSTALLATION

Unpacking
The amplifier was carefully checked before leaving the factory. Inspect shipping container and unit carefully for indication
of improper handling. If the unit has been damaged, make an immediate claim to the carrier.

Mounting Instructions
The amplifier is provided with a set of universal mounting brackets to facilitate either rack or surface wall mounting.
Remove the 8 screws (4 on either side) holding the cover to the chassis. Choose the mounting required (rack or surface
wall), and insert screws thru the universal mounting bracket and back into the cover/chassis holes as shown in Figures 1
and 2.

CAUTION: THESE DEVICES ARE NOT INTENDED FOR USE IN HAZARDOUS LOCATIONS AS DEFINED BY
THE NATIONAL ELECTRICAL CODE (NEC) AND BY THE NATIONAL FIRE PROTECTION ASSOCIATION
(NFPA).

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RACK MOUNTING

FIGURE 1.

SURFACE WALL MOUNTING

For surface mounting, be sure to use hardware suitable for the mounting surface.

FIGURE 2.

Power and Grounding
The 120 VAC line cord has a three-prong plug which should be plugged into a three wire grounded electric outlet. It is
very important to maintain the amplifier ground for safe and trouble-free operation. If there is no grounded electric outlet,
connect a wire from the GND terminal of the unit to a water or steam pipe.

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TECHNICAL SPECIFICATIONS

# PARAMETERS TPA-60 TPA-100

1 POWER OUTPUT

@ 1 KHz

2 TOTAL HARMONIC

DISTORTION

3 OUTPUTS

4 TAPE/BOOSTER

OUTPUT

INPUTS

5 IMPEDANCE

6 SENSITIVITY

7 FREQ. RESPONSE

8 SIGNAL TO NOISE

RATIO

9 TYPE OF INPUT XFRMR

10 CONTROLS TEL/MIC 1, MIC 2, AUX 1/AUX 2, INPUT LEVELS,

11 INDICATORS AMBER NEON - POWER ON

12 PROTECTION AC LINE RESETTABLE CIRCUIT BREAKER, THERMAL

13a TREBLE CONTROL

13b BASS CONTROL

14 LO-CUT SWITCH -6 dB @ 250 Hz
15 AUTOMATIC LIMITER

FOR PAGING

16 AUTOMATIC MUTE

OPERATION

17 REGULATION

18 CONSUMPTION

19 SIZE 15"W X 11.25"D X 4.125"H

20 WEIGHT 15lbs. (6.75Kg) 18lbs. (8.1Kg)

BASS, TREBLE, MASTER VOLUME, TEL/MIC 1 AND
AUX 1/AUX 2 SELECTOR SWITCHES, POWER
ON/OFF SWITCH, LO-CUT SWITCH

RED LED - PEAK LEVEL

OVERLOAD PROTECTION ON OUTPUT, AND SHORT
CIRCUIT PROTECTION ON OUTPUT.

+/-3 dB OUTPUT LEVEL MAINTAINED WITHOUT
CLIPPING, EVEN WHILE EXCEEDING RATED INPUT
LEVEL UP TO 20 dB.
OUTPUT LEVEL 1 WATT FOR 40 dB MUTING

NO LOAD TO FULL LOAD OUTPUT LESS THAN 2 dB.

180 WATTS MAX. 240 WATTS MAX.

60 WATTS RMS

LESS THAN 2% THD

4 ohms, 8 ohms, 25V, 70V

47K ohm, 0.6V

TELEPHONE

600 ohm 150 ohm 47K ohms

-20 dBm .5 - 1 mV 220 mV

300Hz - 4KHz 70Hz - 15KHz 70Hz - 15KHz

60dB 60dB 70dB

ISOLATED/BAL

+/-9 dB @ 12 KHz

+/-9 dB @ 100 Hz

(38.1 X 28.6 X 10.1cm)

100 WATTS RMS

MIC 1/MIC 2

BALANCED
OR UNBAL.

AUX 1/AUX 2

UNBALANCED

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INPUT CONNECTIONS