Toa KD-3 Operating Instructions Manual
Operating Instruction Manual
ELECTRONIC MUSIC AMPLIFICATION SYSTEM
Model KD-3
TOA Corporation
KOBE, JAPAN
Contents
Precautions
General Description
Features
Front Panel: Names of components & their usage
Rear Panel: Names of components & their usage
Block and Level Diagrams
Specifications
Appearance ...
Precautions
1
2
2
3
4
5
5~6
6
1. Power Supply
The KD-3 is designed to operate on local AC (50/60Hz) Mains, ±10%.
2. XLR Type Audio Connector
The connectors are wired as follows.
The pin 1 is ground (shield), the pin 2 cold (low, minus), the pin 3 hot (high, plus).
3. Phantom Power Supply
The phantom power switch on channel 1 input permits the user to supply 48V DC
through the input connector to a condenser microphone. If phantom power is not
required, the switch must be in the "off' position.
4. Description of components and functions of the KD-3
Various descriptions are applied, depending on each manufacturer. In our
Operating and Instruction. Manual explanation of components and functions is
made according to TOA's usage for them.
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General Description
The TOA KD-3 is a complete electronic music amplification system in a single
portable package, consisting of a stereo mixer, spring reverberation unit, graphic
equalizer, power amplifier, and two-way speaker system.
The mixer section provides four input channels. Each input features 2-band active EQ,
an independent effects send, a clip LED indicator, a direct output, and a channel level
control with concentric balance control. Channel 1 features an electronically balanced
XLR mic input connector with switchable 48 volt phantom power, for use with
condenser-type microphones, and each input channel features input sensitivity
switches. In addition, channel four features an RIAA equalized phono input for direct
connection of magnetic cartridge turntables.
The master section contains an effects patching loop with crossfade and level controls,
5-band EQ stereo L&R controls, and a stereo headphone monitoring system.
The 220 watt RMS internal power amplifier features Auto Comp compression
circuitry, with an LED indicator, to ensure distortion-free performance and protection
for the internal speaker system. The two-way speaker system utilizes a heavy duty
15-inch woofer and a constant directivity horn with piezo electric driver.
The KD-3 is covered in a durable and attractive high tech gray vinyl fabric.
Features
System Features
Four input channels
•
220 watts/4-ohm, 150 watts/8-ohm power amplifier output
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Auto Comp compression circuitry w/indicator
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Power amplifier protection circuitry w/indicator
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Built-in, heavy-duty two-way loudspeaker system of 15"(38cm) woofer and constant
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directivity horn with piezo driver
Built-in spring reverberation unit
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MIDI Thru circuitry
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Each Input Channel
Two band EQ
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Independent effect send is post-EQ/post-fader
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Direct output on each channel, ideal for recording
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Concentric balance control and channel volume control
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LED clip indicator for best signal to noise ratio
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Individual Input Level Selector switches
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Input Channel 1 has electronically balanced XLR microphone input connector with
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switchable 48 volt phantom power
Input Channel 4 has stereo phono (RIAA) inputs for turntable with magnetic
•
cartridge
Master Section
Stereo Left and Right outputs with both RCA and 1/4" phone jacks
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Level and crossfade control for returning effects signals to stereo mixing busses
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Two band EQ for internal reverberation unit
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Headphone monitoring for Stereo L and R, SUM and EFF
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Five band graphic equalizer w/bypass switch
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Complete patch bay
•
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