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TP-Link P912A User Manual

Toa new 900 series power amplifier, P912a, P906a

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Operation Instruction Manual

TOA NEW 900 SERIES

POWER AMPLIFIER

P912A

2 Low

distortion

and

noise level

3 Excellent output regulation

4 A full range of plug-in modules

5 Self-protecting

circuitry

design

6 Varied

output impedances; 4 and 8 ohms, 25 and 70 volts

7

Input

level switch (selectable 1,000mV/100mV)

8 Portable

or

rack-mounting

type

The TOA P-906A and P-912A Power Amplifiers deliver up to 60

watts and 120 watts of power respectively at less than 0.5% total

harmonic distortion (THD) from 20 to 20,000 Hz (transformerless

4-ohm output). The P-906A and P-912A have a high-impedance

direct input and an input port (edge connector) to accept one

module accessory. Module selection is determined by application

among the TOA plug-in modules:

The H-01 s e r i e s , H-02 s e r i e s and H-03 series Microphone Pre-

amplifiers, E-01 Mag. Phono Preamplifier, the X-01 series Auxiliary

Preamplifiers for high-level sources, the B-01 series Bridging Trans-

formers for bridging high-impedance lines, the L-01 series Line

Matching Transformers for matching 600-ohm lines, 1-01 Paging

Input for combining with the TOA Intercom System EXES-1000,

EXES-5000 and EX-16, and the S-01, S-02 and S-03 Tone signal

generators for generating attention-getting signals and 1 kHz sine

wave for testing within the total system.

The P-906A and P-912A have a low-cut switch for a cutoff frequency

of 60 Hz, and an input-level switch for input sensitivity of 1V

(0dBv) or 100mV (—20dBv). Output terminals provide connections

for 4-ohm and 8-ohm speakers, plus 25-volt and 70-volt speaker dis-
tribution outlets.

With plug-in modules, the TOA P-906A and P-912A Power Am-

plifiers may be used as a pre/power amplifier.

The P-906A and P-912A can be rack mounted by using the MB-931

Rack-mounting Bracket accessory. The PF-911 Perforated Panel

(1.73 inches, 1 rack unit) accessory provides suitable ventilation,

finished in color to match the P-906A and P-912A.

1 3 3 - 0 2 - 7 4 0 - 6

Printed in Japan

Toa Electric Co., Ltd.

KOBE, JAPAN

Features

General Descriptions

P906A

1 Wide

frequency

response; 20 — 20,000 Hz, ±1dB