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Operating Instruction Manual
TOA MIXING CONSOLE
Model RX-208, RX-212, RX-216
RX-208
RX-212
RX-216
TOA ELECTRIC CO, LTD
KOBE, JAPAN
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Contents General Description ......................................... 2 Features ................................................... 2 Front Panel, Input Section ................................... 3 Front Panel, Output Section .................................. 4 Meter Panel ................................................ 5 Rear Panel (RX-208) ......................................... 6 Rear Panel (RX-212, RX-216) ................................. 7 Connection Examples .......................
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General Description The RX-208, 212 and 216, are mixing consoles with 8, 12 and 16 inputs respectively, 2 program outputs, 2 foldback outputs, and 1 echo output. Each input channel and line output has a balanced, low impedance, transformer-isolated, XLR connector, and an unbalanced, 1/4" jack. Each input channel includes an accessory send/receive jack for inserting a signal processing device into the signal path, and a phantom power ON/OFF switch for permitting use of a condenser microphone. An
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Front Panel, Input Section 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 sensitivi
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Front Panel, Output Section FB 1 Volume Control (FB1) Echo Time Control (T1 DELAY) Regeneration Control (T2 REGEN) This control attenuates the echo- This control permits continuously The T2 control is provided to adjust return signals from the built-in echo variable adjustment of the echo time the echo pattern (number of repeats) or an external echo unit and assigns in either short or long ranges. The of the internal analog delay. them to the FB 1 mixing bus. short range is from 14m to 40m secon
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Meter Panel Program L Output Meter (PGM L) RX-208, RX-212 The meter indicates the program L output level. Graphic Equalizer (EQUALIZATION) Program R Output Meter (PGM R) Two channel, 1/1 octave graphic equalizer The meter indicates the program R output with 9 bands (filters) enables 12dB of boost level. and attenuation at each center frequency with the "0" position of each filter providing FB 1 Output Meter (FB 1) flat response. The graphic equalizer is The meter indicates the FB 1 output level.
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Rear Panel (RX-208) RX-208 Accessory Send/Receive Jacks (ACCESSORY 1~8) These jacks are provided as patching points Program Line Output Connectors and Jacks for inserting signal processing equipment (LINE OUT, PGM L, R) such as compressor/limiters, noise gate, etc. These connectors and jacks are the outputs An output impedance of the accessory send of the console deriving the signals after each and an input impedance of the accessory program master fader. The XLR connectors receive are 10k ohms.
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Rear Panel (RX-212, RX-216) The RX-212 and RX-216 are the same as the RX-208 in functions, except that the RX-212 has 12 input channels and the RX-216 has 16 input channels. RX-212 Accessory Send/Receive Jacks (ACCESSORY 1~12) Program Line Output Connectors and lacks (LINE OUT, PGM L, R) Phantom Power Switches Channel Input, Unbalanced Jacks (PHANTOM 1~12) (CHANNEL IN UN-BAL 1~12) Power Switch (POWER) Channel Input, Balanced Connectors Power Fuse (CHANNEL IN BAL 1~12) Ground Terminals (GND) Ster
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Connection Example Main Speaker Systems (Right) Main Speaker Systems (Left) These XLR connectors are bal- anced, transformer-isolated, floating and accept low imped- ance sources of from +10dB to —60dB nominal level. The input level must be adjusted by the in- put level selector switch and trim control. Dual Power Dual Power Amplifier Amplifier Wireless Tuner Keyboard Unbalanced input jacks ac- RX-208 cept high impedance sources of from —30dB to 0dB nominal level. The in- put level switch on the
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Connection Example Main Speaker Systems (Right) Main Speaker Systems (Left) 4-way multiple driving 4-way multiple driving STAGE LAYOUT EXAMPLE RX-216 RX-212 - 9 - - 10 -
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How to use ''channel patching" accessory jack The accessory jack (Tip, Ring, Sleeve) is provided on each input channel to allow insertion of outboard signal processing devices (example: compressor/limiters, noise gate, equalizer, etc.) into the signal path. The jack functions as both an output and an input (Tip=Receive, Ring=Send, Sleeve=Shield). Connection cables for this purpose should be wired as illustrated in Fig. 2. Inserting a plug into the jack interrupts normal signal flow and places th
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How to get a good mixing Before connecting the equipment to the mixing console, check the impedance and level of • both. If the impedances and levels do not match, mixing will be very difficult and the S/N ratio will also be adversely affected. Each input channel of the RX-208, RX-212 and RX-216 is provided with a Trim control. • Thorough understanding of the function of a Trim control will make mixing easier. TRIM The function of the Trim control is that the negative • feedback volume of the
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Channel and Graphic Equalizers Equalization for music The Graphic Equalizer is designed not only for use in preventing feedback and equalizing uneven room frequency response to be flat, but also for equalizing frequency response to your tastes and producing favourable sound for you. Fig. 1 shows each frequency band and its corresponding auditory feeling. Fig. 2 and Table 1 show the relation between each musical instrument and its frequency band. They can be of great help in the equalizer operati
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Channel and Graphic Equalizers Feedback Prevention When the overall gain of a sound system is increased, feedback will occur at frequencies where the system response has peaks. Suppose the system has uneven frequency response like that shown in the following diagram. The frequency at which feedback will occur when gain is increased is about 500Hz. In this case, feedback may be prevented by attenuating levels at 500Hz by 3dB to 5dB with an equalizer. If the overall gain is again gradually increas
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Input & Output Specifications INPUT SPECIFICATIONS 0dB is referenced to 0.775V RMS. Actual For Use Input Level (Trim "0" to Trim "–30") Input Load With Sensitivity* Connector Impedance Nominal Nominal MAX. Before Clip –80dB (0.08mV) –40dB (7.8mV) to –10dB (250mV) BAL –60 550 ohms –60dB (0.78mV) to –30dB (25mV) XLR-3-31 50 to 600 –60dB (0.78mV) –20dB (78mV) to +10dB (2.5V) BAL –40 800 ohms –40dB (7.8mV) to –10dB (250mV) CHANNEL IN ohms type** –40dB (7.8mV) 0dB (775V) to +30dB (25V) BAL –20 900 oh
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Characteristic Diagrams Frequency Response Input EQ Characteristics Graphic EQ Characteristics - 16 -
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- 17 - TRANSFORMER NUMBER IN PARENTHESES=NOMINAL LOSS OR GAIN IN dB AMPLIFIER NUMBER IN SQUARE BRACKETS=NOMINAL SIGNAL LEVEL SWITCH NUMBER IN TRIANSLE=GAIN OF AMPLIFIER IN dB FADER OR LEVEL CONTROL NUMBER IN RECTANGLE—LOSS OF ATTENUATOR IN dB
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Level Diagram Dimensional Diagrams RX-208, RX-212 RX-216 The above dimensional diagram is for the RX-212. Overall dimensional of the RX-208 is the same as the RX-212. - 18 -
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TOA ELECTRIC CO., LTD. KOBE, JAPAN Printed in Japan 133-02-573-2A
