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OPERATING INSTRUCTIONS
M-1264
M-1212E
STEREO MIXERS
TOA 1000 series
THE LIGHTNING FLASH WITH
ARROWHEAD WITHIN A TRIANGLE IS
INTENDED TO TELL THE USER THAT
PARTS INSIDE THE PRODUCT ARE A
CAUTION
RISK OF ELECTRIC SHOCK TO
TO REDUCE THE RISK OF ELECTRICAL
PERSONS.
SHOCK, DO NOT REMOVE COVER.
NO USER SERVICEABLE PARTS INSIDE.
THE EXCLAMATION POINT WITHIN A
REFER SERVICING TO QUALIFIED
TRIANGLE IS INTENDED TO TELL THE
SERVICE PERSONNEL
USER THAT IMPORTANT OPERATING
AND SERVICING INSTRUCTIONS ARE
IN T
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CONTENTS Handling Precautions General Description Features Nomenclature (Front Panel) Nomenclature (Rear Panel) Input Transformer Mounting Phantom Power Supply Input and Output Specifications Block Diagrams and Level Diagrams Specifications Accessories Appearance HANDLING PRECAUTIONS Operating voltage is 120V AC ± 10% (120 V version) or 220-240V AC ± 10% (220-240 V version). Avoid using the power voltage exceeding these ranges. Do not expose the unit to corrosive chemicals or salt water. Also, k
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GENERAL DESCRIPTION The TOA M-1264 is a 19" rack-mountable stereo mixer with multiple inputs and outputs. Inputs can be expanded by using the M-1212E expansion unit. FEATURES Six monaural inputs (expandable using the M-1212E), four stereo inputs and one auxiliary stereo input. One each of output: stereo, group (L/R), stereo sum, monitor (L/R), AUX, and headphone. A compressor built in each monaural input minimizes signal distortion caused when there is an extremely large input. The activation of
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NOMENCLATURE [Front Panel] [M-1264] (Main unit) [M-1212E] (Expansion unit) L/C/R assign switch [L/C/R] Bus assign switch [ASSIGN] Aux assign switch [AUX] Cue switch [CUE] Input level control Channel switch/indicator Stereo output level control [STEREO] Adjusts the level to send out a mixed input signal from the stereo bus to the stereo output. This control can be remotely operated. Group output level control [GROUP] Adjusts the level to send out a mixed input signal from the group bus to the gro
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Aux output level control [AUX] Adjusts the level of signals going to the AUX output. Monitor output level control [MONITOR] Adjusts the level to transmit a signal from the stereo bus or cue bus to the monitor output and headphone output. Cue indicator [CUE] Lights when any cue switch is pressed, indicating that the cue bus signal is being sent to both the monitor and headphone outputs. If the indicator is off, the stereo bus signals are sent to both outputs. Headphone jack [PHONES] Outputs the s
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NOMENCLATURE [Rear Panel] [M-1264] (Main unit) [M-1212E] (Expansion unit) Input level selection switches [LINE/MIC/MIC (HPF) ] Set each monaural input level for Line, Mic or Mic with highpass filter. Monaural input XLR connectors [MONO INPUT 1~6 (M-1264) /1~12 (M-1212E) ] This electronically-balanced input can be changed to the transformer-balanced type using an optional input transformer. (Refer to the section "Input Transformer Mounting" on page 8.) Phantom power (+24V DC) can also be supplied
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Monitor output phone jacks [MONITOR OUT L, R] Unbalanced monitor output. Stereo output XLR connectors [STEREO OUT L, R] Electronically-balanced stereo output. Stereo/group send selection switch Four-step selection switch. STEREO TO GROUP position: Sends the stereo bus signal to the group bus. OFF GROUP TO STEREO(PRE) position: Sends the group output signal to the stereo bus. GROUP TO STEREO(POST) position: Sends the group output signal mixed with the stereo signal adjusted with the stere
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INPUT TRANSFORMER MOUNTING CAUTION THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER THAN THAT CONTAINED IN THE OPERATING INSTRUCTIONS UNLESS YOU ARE QUALIFIED TO DO SO. REFER ALL SERVICING TO QUALIFIED SERVICE PERSONNEL The M-1264's (M-1212E's) monaural inputs are electronically balanced. They can be made transformer-balanced inputs using the optional input transformer LT-101 or LT-102. How to mount the input transf
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Matching Transformer Specifications Model LT-101 LT-102 Impedance 10k :10k 600 : 600 Frequency response Within ± 0.15 dB (30 Hz~20 kHz) Within ± 0.15 dB (30 Hz~20 kHz) Constant loss Within 1.5 dB (1 kHz) Within 1.5 dB (1 kHz) Distortion 0.2 % or less (50 Hz / +5 dB*) 0.2 % or less (50 Hz / +5 dB*) * 0 dB = 0.775 Vrms ** Specifications are subject to change without notice. PHANTOM POWER SUPPLY CAUTION THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID ELECTRIC SHOCK, D
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INPUT AND OUTOUT SPECIFICATIONS Input/Output Level Impedance Connector Line 50 k -10 dB XLR 3-pin connector Monaural Input Mic -60 dB 1 k Mic (with HPF) -60 dB 1 k Stereo Input (L, R) -10 dB 50 k RCA jack Auxiliary Stereo Input (L, R) +4 dB 10 k Unbalanced phone jack 600 or more Stereo Output (L, R) +4 dB (Matched load) XLR 3-pin connector or more 600 Sum Output +4 dB (Matched load) Group Output (L, R) +4 dB 1 k Monitor Output (L, R) +4 dB 1 k Unbalanced phone jack AUX Output +4 dB 1 k Stereo Mi
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BLOCK DIAGRAM AND LEVEL DIAGRAM
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[M-1212E]
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SPECIFICATIONS Model M-1264 M-1212E Frequency 20Hz~20kHz(+0,-1.5dB) Response Total Harmonic 0.15 % or less (Monaural Input to Stereo Output +4 dB*, 1 kHz) Distortion 0.01 % or less (Stereo Input to Stereo Output, +4 dB*, 1 kHz) (1)When all volume controls are in (1) When all volume controls are in minimum minimum position. position. Stereo Mixing Output : -94 dB or less Stereo Output : - 100 dB or less (2) When the stereo volume control is in (2) When one monaural input level control is maximum
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APPEARANCE [M-1264] [M-1212E]
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TOA Corporation Printed in Japan 133-12-150-2B
