Toa KD-2 Operating Instructions Manual
Operating Instruction Manual
ELECTRONIC MUSIC AMPLIFICATION SYSTEM
Model KD-2
Toa Electric Co., Ltd.
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-2 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-2
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-2 is a complete electronic music amplification system in a single
portable package, consisting of a stereo mixer, spring reverberation unit, power
amplifier, and two-way speaker system.
The mixer section provides four discrete input channels. Each input features 2-band
active EQ, an independent effects send, a direct output, and a channel level control
with concentric stereo pan. Channel 1 features an electronically balanced XLR mic
input connector with switchable 48 volt phantom power, for use with condenser-type
microphones, and Input channels 1 and 2 feature input sensitivity switches. In
addition, channel 4 features on RIAA equalized phono input for direct connection of
magnetic cartridge turntables.
The master section contains an effects patching loop with crossfade and level controls,
Stereo L & R controls, and a stereo headphone monitoring system.
The 100 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-2 is covered in a durable and attractive high tech gray vinyl fabric.
Features
System Features
Each Input Channel
Four input channels
100 watts power amplifier output
Auto Comp compression circuitry w/indicator
Power amplifier protection circuitry w/indicator
Built-in heavy-duty two-way loudspeaker system of 15"(38cm) woofer and constant
directivity horn with piezo driver
Built-in spring reverberation unit
Stereo mixer section
Two band EQ
Independent effect send is post-EQ/post-fader
Direct output on each channel, ideal for recording
Concentric stereo pan and channel volume control
Input Channel 1 has electronically balanced XLR mic input connector with
switchable 48 volt phantom power
Input Channel 4 has phono (RIAA) inputs for turntable with magnetic cartridge
Input Channel 3 and 4 has Input Level Selector switches
Master Section
Level and crossfade control for returning effects signals to stereo mixing busses
Stereo Left and Right outputs with both RCA and 1/4" jacks
Headphone monitoring for Stereo Left and Right
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