Toa RXA-212, RXA-216 Operating Instructions Manual

Operating Instruction Manual

TOA POWERED CONSOLE

Model RXA-212, RXA-216

RXA-216

RXA-212

TOA ELECTRIC CO., LTD.

KOBE, JAPAN

Contents

General

Features

Front

Description

.........................................

...................................................

Panel,

Input

Section

Output

...................................

Section

..................................

Meter Panel (RXA-212, RXA-216) ........................... 5

Rear Panel, (RXA-212) ........................................ 6

Rear Panel, (RXA-216) ........................................ 7

Connection

Signal

Caution

Example

Flow

Installation

(RXA-212)

(RXA-216)

..............................

................................................

......................................

How to get a good mixing..................................... 12

Channel and Graphic EQ's application ...................... 13~14

General

Input & Output

Characteristic

Block Diagram.............................................. 17

Level

Dimensional Diagrams....................................... 18

Precautions

1. Power Switch

The power switch should be on after all connections have been completed.

2. XLR (Cannon) Connectors

The connectors are wired in the following manner: Pin 1 is ground (shield); pin 2 is cold (low, minus); pin 3 is hot (high, plus).

Specification

Diagrams

Diagram

..............................................

(RXA-212;

Specifications

.....................................

RXA-216)

....................

................................

3. Description of components and functions on the RXA-212 and RXA-216.

In our Operating and Instruction Manual explanation of components and functions is made according to our usage for them.

- 1 -

General Description

The RXA-212 is a self-powered console with 12 input channels, 2 program outputs, 2 foldback outputs, 1 echo output, and 2 built-in power amplifiers of 120 watts each into 8 ohms. The RXA-216 is a self-powered console with 16 input channels, 2 program

outputs, 2 foldback outputs, 1 echo output, and 4 built-in power amplifiers of 120

watts each into 8 ohms. Each input channel has a balanced, low impedance,

transformer-isolated, XLR connector, and a high impedance, unbalanced, 1/4" jack. An input level switch and trim control on each input channel are provided to permit

optimum gain settings. A four-band equalizer is included on each input channel. A

peak indicator LED on each input detects excessive inputs and helps avoid clipping. A

pan control on each input channel assigns the fader output signal of the channel to program L and R. A cue switch on each input channel, stereo input, aux-echo input, program output, foldback output and echo send allows monitoring the respective, prefader (pre-volume) signals through the phones output. All faders are log-linear type

with 60mm travel. Two additional stereo inputs are used to connect stereo playback decks, disk players and other auxiliary equipment. Two independent foldback

outputs are included, (pre-fader, pre-EQ) signals. An analog, electronic echo is built in, but can be bypassed (via Echo Send/Return) for external delay, reverb or special

effects. Dual Graphic Equalizers (1/1 octave, 9 bands) are switchable to program

outputs, foldback outputs, or "off". A fluorescent bargraph peak meter (2-color, vertical type) monitors the outputs of program L and R, and foldback 1 and 2. Each

power amplifier is switchable to either program or foldback outputs or can be

connected to external input sources. The RXA-212 and 216 are designed for use in

professional sound reinforcement systems, and provide the versatility necessary to

meet a wide range of requirements. The high performance and modular construction

assures reliability, easy maintenance, and serviceability.

Features

1. 2 built-in power amplifiers of 120 watts each into 8 ohms (RXA-212). 4 built-in power amplifiers of 120 watts each into 8 ohms (RXA-216).

2. Internal power amplifiers may be used for either program outputs or foldback outputs, or can be used independently with external sources.

3. Balanced, low impedance, (transformer-isolated) XLR connector plus unbalanced

high impedance 1/4 inch jack, on each input channel.

4. Input level switch and trim control on each input channel.

5. Peak indicator LED on each input channel.

6. Four-band equalizer on each input channel.

7. Cue switch on each input channel, stereo input, AUX echo input, program output, foldback output and echo send for permitting monitoring the respective pre-fader

(pre-volume) signals through the phones output.

8. All faders are log-linear type with 60mm travel.

9. Two additional, stereo inputs for connecting stereo playback decks, disk players and other auxiliary equipment.

10. Built-in, electronic analog echo unit.

11. Dual graphic equalizers (1/1 octave, 9 bands) are switchable to either the program

or foldback outputs.

12. Fluorescent bargraph peak meters for monitoring the program L and R, and

foldback 1 and 2.

- 2 -

Front Panel, Input Section (RXA-212, RXA-216)

Peak Indicator

The peak indicator lights if clipping occurs in the pre-amp stage of the corresponding input channel. When the light comes on, an adjustment must be made with the Input Level Selector Switch and/or the Input Trim control.

Input Level Selector Switch (INPUT)

Selection is made in accordance with the output of the microphone or other equipment

connected to each input channel (XLR connector and phone jack). (-20, -40 and -60) dB

indicates the input sensitivity of the XLR connector input when the trim control is set at the "0"

position. The "UN-BAL" position permits using the phone jack input. The unbalanced input

sensitivity is -30dB when the trim control is set at the "0" position.

Input Trim Control (TRIM)

The input trim varies the gain of the pre-amplifier stage of each input channel, providing a continuously variable control of gain in the range of 0 to -30dB from the input level switch position. For instance, with the input level selector switch set at -60dB, the variable range is

between -60dB and -30dB.

High Equalizer Control (HIGH EQ)

The high control in each input channel alters the frequency response of the channel input,

allowing a variety of high frequency characteristics. The high control provides ±15dB of

continuously variable shelving equalization at 10kHz, having fla t audio response at the

detented "0" position.

High-Mid Equalizer Control (HI-MID EQ)

The high-mid control provides ±15dB of continuously variable peaking equalization at 3kHz. The detented "0" position is flat.

Low-Mid Equalizer Control (LOW MID EQ)

The low-mid control provides ±15dB of continuously variable peaking equalization at 300Hz,

having flat audio response at the detented "0" position.

Low Equalizer Control (LOW EQ)

The low control provides ±15dB of continuously variable shelving equalization at 100Hz,

having flat audio response at the detented "0" position.

Foldback Control 1 (FB 1)

The Foldback 1 control assigns the pre-equalizer, pre-fader input signal to the foldback 1 mixing bus. This control is used to route the input signal to stage monitor systems.

Foldback Control 2 (FB 2)

The Foldback 2 control assigns the pre-equalizer, pre-fader signal to the foldback 2 mixing

bus.

Echo Control (ECHO)

The echo control assigns the post-equalizer, post-fader signal to the echo bus.

Pan Pot

This control assigns the fader output signal of the channel to the Program L, R mixing busses.

At the center position, the pan pot routes the signal equally to the L and R mixing busses.

Panning from one side to the other gradually assigns the input signal to either the Program L or

R mixing busses exclusively.

(PAN)

Writing Block

The name of the input equipment or microphone setting can be written in with an eraseable felt pen or a wax pencil.

Input Fader

The fader provides continuously variable adjustment of the channel's output to the program L and R mixing busses, and to the echo mixing bus. The nominal level is at the "0" position, with

the fader retaining a 6dB margin.

Cue Switch (CUE)

The cue switch is for monitoring the post-EQ, pre-fader signal in each input channel through headphones. The switch is a "push-on push-off" type. When more than two switches are "on",

the signals are combined.

- 3 -

Front Panel, Output Section (RXA-212, RXA-216)

FB 1 Volume Control (FB1)

This control attenuates the echo-

return signals from the built-in echo

or an external echo unit and assigns

them to the FB 1 mixing bus.

FB 2 Volume Control (FB2)

This control attenuates the echoreturn signals from the built-in echo or an external echo unit and assigns

them to the FB 2 mixing bus.

Stereo Input Switches (INPUT)

Each switch has two positions, aux and phono. The aux position accepts

line level signals such as tape

recorders. The phono position

provides direct input and RIAA

equalization for a turntable.

FB 1 Volume Control (FB1)

This control attenuates the stereo input signals, mixes them to a monaural signal, and assigns them

to the FB 1 mixing bus.

FB2 Volume Control (FB2)

This control attenuates the stereo input signals, mixes them to a monaural signal, and assigns them

to the FB 2 mixing bus.

Balance Control (BALANCE)

This control adjusts the level balance of the stereo input signals fed to the program L & R mixing busses.

The name of the input equipment can be written in with an eraseable felt pen or a wax pencil.

Stereo Input Volume Controls

These controls adjust the level of the stereo in 1 and 2 signals to be fed to the program L and R mixing busses.

The cue switch is for monitoring the pre-fader signal in each stereo input

channel through headphone. This

feature is useful for cueing the start

of a tape or record.

The name of the input equipment or microphone setting can be written in

with an eraseable felt pen or a wax

pencil,

The program faders control the

overall signal level of the program

mixes which are fed to the program L & R outputs, and thus the output

level of the assigned internal power

amplifier.

The cue sw itch is for monitoring the pre-fader program signals through headphone. This is useful for independent audition of the

(STEREO 1, STEREO 2)

Program Fader L and R

Writing Block

Cue Switch (CUE)

Writing Block

(PGM

L, PGM R)

Cue Switches (CUE)

program mixes.

Echo Time Control (T1 DELAY)

This control permits continuously variable adjustment of the echo time

in either short or long ranges. The

short range is from 14m to 40m

seconds; the long range is from 40m

to 140m seconds.

Echo Time Switch

The switch changes the echo time to either the short or the long range.

(SHORT, LONG)

Regeneration Control (T2 REGEN)

The T2 control is provided to adjust

the echo pattern (number of repeats)

of the internal analog delay.

Headphone Jack

The headphone jack will accept any stereo headphone with 8 ohms impedance, or higher.

Phones Level Control (PHONES)

The phones level control adjusts

both the program L and R signals fed to the phones output and permits stereo monitoring when th e cue switch is off. When the cue switch is on, the control adjusts the corresponding cue signal. When tw o or more of the cue switches are on, the control adjusts the corresponding combined cue signals.

Pan Pot

(PAN)

The pan pot control assigns the signals from the built-in echo or external echo unit to the program L

and R.

Echo Return Volume Control

(ECHO RETURN)

This control sets the signal level from the built-in echo or from an

external echo unit and sends it

(through the pan control) to the pro-

gram L and R.

Echo Send Volume Control

(ECHO SEND)

This control is provided to adjust the overall signal level of the echo mix to the echo send output, or to the internal analog delay.

Cue Switch (CUE)

The cue switch is used for monitoring the signal prior to the Echo/Send

volume control.

Cue Switch (CUE)

The cue switch is used for monitor-

ing the signal prior to the

Echo/Return volume control.

FB Fader 1 and 2 (FB1, FB2)

These faders control the overall

signal level of the mixes which are

fed to FB outputs 1 and 2.

Cue Switch (CUE)

The cue switch is used for monitor-

ing the signals prior to the FB 1 and 2

outputs.

- 4 -

Meter Panel (RXA-212, RXA-216)

RXA-212

Graphic Equalizer (EQUALIZATION)

Two channel, 1/1 octave graphic equalizer

with 9 bands (filters) enables 12dB of boost

and attenuation at each center frequency

with the "0" position of each filter providing flat response. The graphic equalizer is switchable to either the program or foldback

outputs, or "off" for A-B comparison.

Graphic Equalizer Selector Switch

(PGML, FB1, OFF)

The 3-position switch assigns the equalizer to either the program L or FB 1 circuits, with the "off" position completely removing the

equalizer from the signal flow path .

Power Amplifier Indicators

(POWER AMP 1, 2)

Green LED's indicate that each amplifier is

connected to either the FB output or program output; red LED indicates that the output of each amplifier is near clipping. The power amplifier assignment switch is located on the

rear panel.

Graphic Equalizer Selector Switch

(PGM

R, FB 2,

The 3-position switch assigns the equalizer

to either the program R or FB 2 circuits, with

the "off" position completely removing the equalizer from the signal flow path.

OFF)

Program L Output Meter (PGM L)

The meter indicates the program L output level.

Program R Outp ut Meter (PGM R)

The meter indicates the program R output level.

FB 1 Output Meter (FB 1)

The meter indicates the FB 1 output level.

FB 2 Output Meter (FB 2)

The meter indicates the FB 2 output level.

RXA-216

*The RXA-216 is the same in its meter panel functions as the

RXA-212, except for the Power Amplifier Indicators.

Graphic Equalizer (EQUALIZATION)

Graphic Equalizer Selector Switch (PGM

L, FB 1,

off)

Power Amplifier Indicators, 1, 2, 3 and 4

(POWER AMP 1, 2, 3, 4)

Green LED's indicates that the corresponding amplifier is connected to either the FB output

or program output; red LED indicates that the output of the corresponding amplifier is near clipping.

Graphic Equalizer Selector Switch (PGM

R, FB 2,

off)

Program L Output Meter

Program R Output Meter

FB 1 Output Meter

FB 2 Output Meter

- 5 -

+ 14 hidden pages

Toa RXA-212, RXA-216 Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual