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INSTRUCTION MANUAL

DIGITAL MIXER D-901

(Version 3)

Thank you for purchasing TOA's Digital Mixer.

Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.

Summary of content (94 pages)

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INSTRUCTION MANUAL DIGITAL MIXER D-901 (Version 3) Thank you for purchasing TOA's Digital Mixer. Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
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TABLE OF CONTENTS 1. SAFETY PRECAUTIONS ............................................................................... 6 2. GENERAL DESCRIPTION ............................................................................. 7 3. FEATURES .......................................................................................................... 7 4. HANDLING PRECAUTIONS .......................................................................... 7 5. NOMENCLATURE AND FUNCTIONS 5.1. D-901 Digital Mixer Front ....
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8.7. 8.8. 8.9. 8.10. 8.11. 8.12. 8.13. 8.14. 8.15. 8.16. 8.17. 8.18. 8.19. 8.6.2. Input trim polarity settings ...................................................................... 28 High-Pass Filter Settings 8.7.1. Cutoff frequency settings ....................................................................... 29 8.7.2. Q settings ............................................................................................... 29 Equalizer Settings 8.8.1. Gain settings ............................
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9.4.1. Parametric equalizer .............................................................................. 47 9.4.2. High-pass filter ....................................................................................... 47 9.4.3. Low-pass filter ........................................................................................ 48 9.4.4. High shelving filter .................................................................................. 48 9.4.5. Low shelving filter ...............................
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12.6. 12.7. 12.8. 12.9. 12.10. 12.11. 12.12. 12.5.2. Function assignment to the output contact ........................................ 67 Protect Settings .............................................................................................. 68 RS-232C Port Settings 12.7.1. Control mode selection ...................................................................... 70 12.7.2. RS-232C transmission rate settings ..................................................
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1. SAFETY PRECAUTIONS • Be sure to read the instructions in this section carefully before use. • Make sure to observe the instructions in this manual as the conventions of safety symbols and messages regarded as very important precautions are included. • We also recommend you keep this instruction manual handy for future reference.
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2. GENERAL DESCRIPTION TOA's D-901 is a 19-inch rack-mounted (3U high) digital mixer configured with 12 inputs, 8 buses, and 8 outputs. It features signal processing functions necessary for sound systems such as feedback suppression and auto-mixing. All functional parameters can be set at the unit*. Settings can be stored in the unit's internal memory as "preset memory" and can be recalled using the front panel-mounted operation keys.
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5. NOMENCLATURE AND FUNCTIONS 5.1. D-901 Digital Mixer [Front] Parameter input section (described below) Output channel control section 1 (Refer to p. 10.) Input channel control section (Refer to p. 9.
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Preset Memory Selection Section 13. Preset Memory Selector Keys [1 – 8] Recall preset memory patterns 1 – 8. To recall, press the desired Preset Memory Selector key, then press the Setting knob (7). 13 1 5 2 6 3 7 4 8 14. Preset Memory Indicators The LED corresponding to the currently selected Preset Memory Selection key is illuminated.
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Microphone Bus Control Section Microphone bus indicator (21) to light, and allows feedback suppression (p. 54), effect (echo) (p. 55), and bus assignment (p. 56) to be set on the LCD screen. 21. Microphone Bus Indicator Remains lit while the microphone bus is selected. SEL 22. Feedback Suppression Indicator [FBS] Remains lit while the feedback suppression function is enabled. 20 21 FBS 23.
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[Rear] 31 32 33 34 35 36 37 38 39 40 41 RS-232C DIGITAL MIXER model D-901 SIGNAL GND TOA Corporation MADE IN JAPAN Slot 9 42 Control module slot Slot 8 Slot 7 Slot 6 Slot 5 Slot 4 Slot 3 Slot 2 Slot 1 Outputs 5–8 Outputs 1–4 Inputs 11 & 12 or Outputs 5–8 Inputs 9 & 10 or Outputs 1–4 Inputs 7&8 Inputs 5&6 Inputs 3&4 Inputs 1&2 Output module slot Input module slot Input & output module slot 31. Cooling Fan CAUTION Do not block the fan exhaust vent.
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5.2. Optional Modules Notes • Make sure that the power is switched OFF before attaching or detaching modules. • To avoid failures due to static electricity, do not touch the parts or terminals on the circuit board of both the unit and module. • Ensure that the module is installed and secured with screws in the correct position. • Cover idle slots with the blank panels attached to the unit as shipped by the factory.
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5.2.3. D-922F Microphone/Line Input Module MIC/LINE INPUT MODULE 47 1 47. Monaural Input Terminal [1, 2] (XLR-3-31 equivalent) Electronically-balanced input terminal. (Pin 1: Ground; Pin 2: Hot; Pin 3: Cold) Use XLR-3-12C or equivalent for connection. 2: Hot 3: Cold ON NORMAL MIC OFF : PHANTOM LIFT : GND LINE +4dB(LINE) -36dB(MIC) -10dB(LINE) -50dB(MIC) 48. Input Sensitivity Switch [PHANTOM, GND LIFT, MIC/LINE] 4-pole switch.
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5.2.6. D-923AE Digital Input Module LINE OUTPUT MODULE [+4 dB] DIGITAL INPUT MODULE DIGITAL IN 1/2 5.2.8. D-971M Line Output Module 1 55 2 52 AES/EBU 3 4 model D-971M model D-923AE 1 :E 2 :H 3 :C ACCESSORY I.T.E 78CK 52. AES/EBU Digital Input Terminal [AES/EBU, 1/2] (XLR-3-31 equivalent) Digital input terminal of AES/EBU format. (Pin 1: Ground; Pin 2: Signal; Pin 3: Signal) 55. Monaural Output Terminal [1, 2, 3, 4] (XLR-332 equivalent) Electronically-balanced output terminal.
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5.2.10. D-971R Line Output Module 57 1(L) DIGITAL OUTPUT MODULE LINE OUTPUT MODULE [–10 dB] 2(R) 5.2.12. D-961SP Digital Output Module DIGITAL OUT OPTICAL 1 59 60 COAXIAL OPTICAL 2 4(R) 3(L) COAXIAL model D-961SP model D-971R ACCESSORY I.T.E 78CK 57. Monaural Output Terminals [1(L), 2(R), 3(L), 4(R)] Unbalanced, RCA pin jack output terminals. Each output is equipped with a 2-channel splitter. Output signal level: –10 dB 5.2.11.
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5.2.14. D-983 Remote Control Module 1-4 5-8 CTRL IN 1-6 7-12 63 CONTROL UNITS FOR D-901 ONLY REMOTE CONTROL MODULE CTRL OUT 63. Contact Input Terminal [CTRL IN, 1-6, 7-12, 13-18, 19-24] Six-circuit RJ45 contact input CTRL IN 13-18 7-12 terminals. Assign functions to each Pin No. 1-6 IN 13 IN 7 IN 1 1 contact on the front panel-mounted IN 14 IN 8 IN 2 2 setting screen. IN 15 IN 9 IN 3 3 4 5 6 7 8 IN 12 IN 11 IN 10 C C IN 18 IN 17 IN 16 C C 64.
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6. SETTING BASICS 6.1. Setting Procedures The D-901's functions need to be set using the front-mounted keys and knob according to scenes of use. After connecting all external equipment, check the following, then follow the procedures below to set each of the unit's functions. Check to be sure that • The required modules are correctly inserted. • The power supply is correctly connected. • The power indicator lights when the power switch is turned on. Step 1.
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Note It is highly recommended that any changed parameters be immediately saved as preset memory on the Preset Memory setting screen. (Refer to p. 57, Preset Memory Save.) This permits the parameters of each function to be saved and protected, even if the power is switched off. All currently saved parameters can be recalled and reproduced when the power is switch on again. (Refer to p. 60, Initial Preset Memory Selection.) Settings need not be saved when temporarily setting or changing parameters. 6.2.
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1 (From the previous page) 2 (From the previous page) Compressor/Auto-Leveler Mode (p. 31) Selection (Compressor mode) (Auto-leveler mode) Compressor settings (p. 31) Threshold Level Settings Auto-leveler settings (p. 33) Target Level Settings Ratio settings Attack time settings Release time settings Makeup gain settings Maximum gain settings Attack time settings Release time settings Level sense settings (p. 34) Attack Time Settings Release time settings Gate settings (p.
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3 (From the previous page) Input 12 Gain Settings Output 1 Gain Settings Same items as for Input 1 Output Channel Gain Settings (p. 42) Output Channel Group Trim Gain Settings (p. 42) (Only when Group is set) Crossover settings (Only when Crossover function is enabled) (p. 43) Slope Settings (High Frequency) Cutoff frequency settings Q settings Q2 settings Crossover gain settings Crossover filter polarity settings Slope Settings (Low Frequency) Same items as for high frequency Filter settings (p.
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6.2.2. Microphone bus settings Microphone bus selector key Feedback suppression settings (p. 52) SEL Dynamic Mode Settings Auto mode activation Filter number settings Dynamic mode filter initialization Auto mode filter initialization Feedback suppression filter setting confirmation (p. 54) Mode Confirmation (Filter 1 settings) Frequency confirmation Filter gain confirmation Q confirmation Mode Confirmation (Filter 12 settings) Same items as for Filter 1 Effect key Effect (echo) settings (p.
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6.2.4. Utility settings Utility key UTILITY Stereo Link Settings (p. 61) Group Settings (p. 61) Crossover Configuration Settings (p. 62) NOM Attenuation Settings (p. 64) Contact input/output settings (p.
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6.3.
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6.4. Setting Screen Displays [Input/Output Gain Setting Screen Example] Indicates the object currently being set. In this example, IN1 (Input 1) is the object being set. Pressing the shift key here switches the display to the input trim gain setting screen. The [IN 1] TRIM indication is displayed on the first line, and the IN 1 (Input 1) trim gain becomes the setting object. The channel selected with the Input channel selector key is displayed.
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7. INPUT/OUTPUT GAIN SETTINGS There are 3 possible setting methods. 7.1. Input and Output Channel Control Section Settings Step 1. Press the desired Input (or Output) channel selector key. The selected channel's SEL indicator lights. Note When Group setting is performed, selecting a channel in the group allows all SEL indicators of the input channels grouped together to light all at once.
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8. INPUT-RELATED SETTINGS The channel selected with the Input channel selector keys can be enabled or disabled using the Input channel ON/OFF key. To enable or disable individual functions, use the function ON/OFF key when each function is displayed. 8.1. Phantom Power ON/OFF Settings (Only with D-921E or D-921F module) [ I N 1 ] P H A N T OM ON OF F (Only when the PAD is set to "MIC.") • Can be displayed and set only when MIC is selected on the PAD setting screen (explained in the next section).
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8.4. Channel Status Verification (Only with D-923AE or D-937SP module) Input signal status verification Sampling frequency verification Pre-emphasis verification [ I N 1 ] STATUS LOCK [ I N 1 ] STATUS Fs 48kHz [ I N 1 ] STATUS EMPHAS I S NON E Using D-923AE: Input trim settings (next page) Using D-937SP: Line (stereo) input selection (next page) 8.4.1. Input signal status verification [ I N 1 ] STATUS LOCK • Input signal status of each channel can be verified.
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8.5. Line (Stereo) Input Selection (Only with D-936R or D-937SP module) Using D-936R: Line input mode selection (p. 26) Using D-937SP: Channel status verification (previous page) CHANGE PARAMETER [ I N 1 ] [ 1 ] L I NE 1 2 SEL ON 4 3 PUSH-ENTER • Rotate the Setting knob to select the line (stereo) number and press the function ON/OFF key to enable or disable the input.
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8.7. High-Pass Filter Settings The high-pass filter function can be enabled or disabled for the displayed channel by using the function ON/OFF key even when any of the following screens is displayed. The function ON/OFF Indicator lights when enabled (ON). ON [Screen display operations] Input trim settings (previous page) Cutoff frequency Q [ I N 1 ] HPF FREQ 60Hz [ I N 1 ] HPF Q 0 . 707 Equalizer settings (next page) 8.7.1.
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8.8. Equalizer Settings When the (low or high frequency) Equalizer setting screen is displayed, equalization for the displayed channel can be enabled or disabled by pressing the function ON/OFF key. When enabled (ON), the function ON/OFF indicator lights. ON [Screen display operations] High-pass filter settings (previous page) Gain Center frequency Q (Low frequency) [ I N 1 ] PEQ - L GA I N + 0 . 0dB [ I N 1 ] PEQ - L FREQ 6 3 0 . 0 H z [ I N 1 ] PEQ - L Q 4 .
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8.9. Compressor/Auto-Leveler Mode Selection Select which function to use, compressor (next section) or auto-leveler (p. 33). Equalizer Settings (previous page) [ I N 1 ] C OM P MO D E CHANGE PARAMETER C OMP PUSH-ENTER Compressor settings (next section) or auto-leveler settings (p. 33) • Rotate the Setting knob to select compressor mode (COMP) or auto-leveler mode (LEVELER). Selecting the mode enables its corresponding function. Refer to the next section for the compressor settings, and p.
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8.10.2. Ratio settings [ I N 1 ] CHANGE PARAMETER C OM P 1 : 1 RAT I O PUSH-ENTER • Rotate the Setting knob to set the ratio. Parameter setting range: 1:1, 2:1, 3:1, 4:1, 8:1, 12:1, 20:1, INF (∞):1 • Pressing an Input channel selector key permits the compression ratio to be set for that channel. The [IN 1] indication changes to the selected channel number indication. 8.10.3. Attack time settings [ I N 1 ] CHANGE PARAMETER C OM P AT TACK 1 0 .
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8.11. Auto-Leveler Settings (only when the auto-leveler mode is selected in Section 8.9.) The auto-leveler function performs to keep the output level constant by suppressing the change of sound volume. Setting the target level (the constant level to be automatically adjusted to) and the maximum gain (the amount of gain to bring the lower level to the target level) automatically compensates for the input level.
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8.11.4. Release time settings [ I N 1 ] LEVELER R E L EA S E CHANGE PARAMETER 1 . 0 0 s PUSH-ENTER • Rotate the Setting knob to set the release time. Parameter setting range: 100 ms – 10 s (Refer to p. 86 for more information.) • Pressing an Input channel selector key set for the auto-leveler mode permits the auto-leveler release time to be set for that channel. The [IN 1] indication changes to the selected channel number indication. 8.12.
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8.13. Gate Settings The gate function allows the input signal to be passed, [Example: Hysteresis parameter is set to +10 dB.] attenuated or cut depending on its signal level. Input level The gate allows the signal to pass when open, and attenuates or cuts the signal when closed. The gate opens Open when the input signal reaches a level above the Threshold plus Hysteresis parameter (half the Hysteresis) as shown in +10 dB Threshold level the figure at right.
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8.13.3. Depth settings [ I N 1 ] GA T E DEP TH CHANGE PARAMETER – 2 0dB PUSH-ENTER • Rotate the Setting knob to set the depth (signal attenuation when the gate is closed). Parameter setting range: –INF (–∞) to 0 dB in 1 dB steps • Pressing an Input channel selector key permits the gate depth to be set for that channel. The [IN 1] indication changes to the selected channel number indication. 8.13.4. Hold time settings [ I N 1 ] GA T E HOL D CHANGE PARAMETER 1 0 .
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8.14. Auto-Mixing Group Settings Both the Ducker function (next page) and the NOM Attenuation function (p. 39) are Auto-Mixing Functions that automatically adjust individual input channel gains in response to input signal level. The auto-mixing functions can operate in each of the 4 groups, GROUP A through D. Although all the input channels are grouped into GROUP A by default, they can be individually assigned to the desired groups.
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Gate settings (p. 35) [ I N CHANGE PARAMETER 1 ] A U T OM I X GROU P A PUSH-ENTER • Rotate the Setting knob to select a group from GROUP A to D. • Pressing an Input channel selector key permits the auto-mixing group to be set for that channel. The [IN 1] indication changes to the selected channel number indication. • The setting screen reverts to the Input/Output Gain Setting screen when the shift key is pressed. 8.15.
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8.15.3. Attack time settings [ I N 1 ] DUCKER A T T AC K CHANGE PARAMETER 1 0 . 0ms PUSH-ENTER • Rotate the Setting knob to set the attack time (the time required for the attenuation to be a set value). Parameter setting range: 10 ms – 10 s (Refer to p. 86 for more information.) • Pressing an Input channel selector key permits the ducker attack time to be set for that channel. The [IN 1] indication changes to the selected channel number indication. 8.15.4.
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8.17. Input Channel Gain Settings NOM attenuation ON/OFF settings (previous page) CHANGE PARAMETER [ I N 1 ] FADER – I NFdB ON ON PUSH-ENTER • Rotate the Setting knob to set the input channel gain. Parameter setting range: –INF (–∞) to +10 dB • Press the function ON/OFF key to enable or disable the channel. • Pressing an Input channel selector key permits the gain to be set for that channel. The [IN 1] indication changes to the selected channel number indication.
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8.19. Bus Assignment and Crosspoint Gain Settings [Screen display operations] Input channel gain settings (previous page) or Input channel group trim gain settings (previous page) Bass assignment Crosspoint gain [ I N 1 ] AS S I GN [ OU T 1 ] – – – – – – – –M [ I N 1 ] GA I N OU T 1 0dB 8.19.1. Bus assignment settings Set input-to-output signal paths.
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9. OUTPUT SETTINGS Output channels selected with the Output channel selector keys can be enabled or disabled using the output channel ON/OFF key. Use the function ON/OFF key to enable or disable each function displayed on the LCD screen. 9.1. Output Channel Gain Settings CHANGE PARAMETER [ OU T 1 ] ON FADER 0 . 0dB ON PUSH-ENTER • Rotate the Setting knob to set the output channel gain.
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9.3. Crossover Settings (Only when Crossover function is enabled) The following screens are displayed only when the crossover function is enabled on the Utility setting screen. (Refer to p. 62 for more information.
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9.3.2. Cutoff frequency settings (High frequency) [ OU T 1 ] FREQ XOVER - HF CHANGE PARAMETER 1 . 00kHz PUSH-ENTER (Low frequency) [ OU T 1 ] FREQ XOVER - L F • Rotate the Setting knob to set the cutoff frequency. Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps • Pressing an Output channel selector key permits the crossover filter to be set for that channel. The [OUT 1] indication changes to the selected channel number indication. CHANGE PARAMETER 1 . 00kHz PUSH-ENTER 9.3.3.
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9.4. Filter Settings ON When any of the following screens is displayed, the filter function for the displayed channel can be enabled or disabled by pressing the function ON/OFF key. When enabled (ON), the function ON/OFF Indicator lights. [Screen display operations] Output channel gain settings (p. 42), Output channel group trim gain settings (p. 42), or Crossover settings (p.
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[Setting procedures (Example of setting output 1 – filter 2 as a horn equalizer)] [ OU T 1 ] TYPE F I L TER1 THRU 1 [ OU T 1 ] TYPE F I L TER2 THRU CHANGE PARAMETER PUSH-ENTER [ OU T 1 ] TYPE 2 3 F I L TER2 HORN EQ [ OU T 1 ] F I L TER2 GA I N + 0 . 0dB CHANGE PARAMETER PUSH-ENTER [ OU T 1 ] F I L TER2 GA I N Step 1. Press the + 4 . 0dB shift key to display a filter. Step 2. Rotate the Setting knob to select the type of filter. Step 3.
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9.4.1. Parametric equalizer [ OU T 1 ] F I L TER1 TYPE CHANGE PARAMETER PEQ PUSH-ENTER • Rotate the Setting knob to select PEQ and enter the Parametric Equalizer setting screen. • Pressing an Output channel selector key permits the filter to be set for that channel. The [OUT 1] indication changes to the selected channel number indication. • The setting screen reverts to the Input/Output Gain Setting screen when the shift key is pressed. [Gain settings] [ OU T 1 ] F I L TER1 CHANGE PARAMETER + 0 .
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[Q settings] [ OU T 1 ] Q F I L TER1 CHANGE PARAMETER 1 . 000 PUSH-ENTER • The Q setting can only be performed when HPF-12 dB is selected. • Rotate the Setting knob to set the Q. Parameter setting range: 0.500 – 2.563 (51 points) • Pressing an Output channel selector key permits the filter to be set for that channel. The [OUT 1] indication changes to the selected channel number indication. 9.4.3.
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9.4.6. Horn equalizer [ OU T 1 ] F I L TER1 TYPE HORN CHANGE PARAMETER EQ PUSH-ENTER • Rotate the Setting knob to select HORN EQ and enter the Horn Equalizer setting screen. • Pressing an Output channel selector key permits the filter to be set for that channel. The [OUT 1] indication changes to the selected channel number indication. • The setting screen reverts to the Input/Output Gain Setting screen when the shift key is pressed. [Gain settings] [ OU T 1 ] F I L TER1 CHANGE PARAMETER + 0 .
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[Center frequency settings] [ OU T 1 ] F I L TER1 FREQ CHANGE PARAMETER 1 . 00kHz PUSH-ENTER • Rotate the Setting knob to set the center frequency. Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps • Pressing an Output channel selector key permits the filter to be set for that channel. The [OUT 1] indication changes to the selected channel number indication. [Q settings] [ OU T 1 ] F I L TER1 CHANGE PARAMETER 0 . 267 Q PUSH-ENTER • Rotate the Setting knob to set the Q.
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9.5.3. Attack time settings [ OU T 1 ] CHANGE PARAMETER C OM P 1 0 . 0ms A T T A CK PUSH-ENTER • Rotate the Setting knob to set the attack time. Parameter setting range: 0.2 ms – 5 s (Refer to p. 85 for more information.) • Pressing an Output channel selector key permits the compressor attack time to be set for that channel. The [OUT 1] indication changes to the selected channel number indication. 9.5.4.
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10. MICROPHONE BUS SETTINGS The Microphone Bus setting screen is displayed when the Microphone Bus selector key is pressed. SEL 10.1. Feedback Suppression Settings [Suppressing acoustic feedback with a simple operation] Step 1. Set the volume controls of connected external equipment to the state in which they will actually be used. Step 2. Activate the Auto mode on the Feedback Suppression setting screen. (Refer to the next page.
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10.1.2. Auto mode activation [Mi cB ] FBS AUTO S TART CHANGE PARAMETER OK ? PUSH-ENTER • Press the Setting knob to automatically search for the feedback points and set the filters for feedback suppression. (Auto mode) • Both the FBS (Feedback suppression) and the LOCK (System lock) indicators flash during Auto mode operation. • To interrupt the Auto mode operation, press the Setting knob.
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10.2. Feedback Suppression Filter Setting Confirmation The settings of all 12 Dynamic and Auto mode feedback suppression filters can be quickly confirmed. [Screen display operations] Feedback suppression settings (p. 52) Filter 1 mode confirmation [ M i cB ] F I L TER1 TYPE AUTO Frequency confirmation Filter gain confirmation [ M i cB ] F I L TER1 FREQ 1 0 . 0 k H z [ M i cB ] F I L TER1 GA I N + 0 . 0dB Filter 12 mode confirmation Q confirmation [ M i cB ] F I L TER1 Q 48 .
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10.3. Effect (Echo) Settings The D-901 has an echo function, a part of an effect function. • The Effect (echo) setting screen can be displayed by pressing the Effect key, or by using the Screen shift keys on the Microphone Bus setting screen. EFFECT • The effect (echo) function can be enabled or disabled with the function ON/OFF key or Effect key when any of the following screens is displayed. • The function ON/OFF and Effect indicators light when enabled (ON).
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10.3.4. Initial echo (pre-) delay settings [Mi cB ] CHANGE PARAMETER ECHO P r eDLY • Rotate the Setting knob to set the initial echo delay time. Parameter setting range: 0 – 682 ms 8 0ms PUSH-ENTER 10.3.5. Low-pass filter frequency settings [Mi cB ] CHANGE PARAMETER ECHO • Rotate the Setting knob to set the low-pass filter frequency. Parameter setting range: 20 Hz – 20 kHz 3 . 75kHz LPF - F PUSH-ENTER 10.3.6.
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11. PRESET MEMORY SETTINGS PRESET The preset setting screen is displayed when the Preset key is pressed. Pressing the key again exits the preset setting screen in any of the following settings, displaying the Input/Output Gain Setting screen. 11.1. Preset Memory Save Set parameters can be stored in memory (number of memories: 16).
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11.2. Preset Memory Recall Recall the stored preset memory. Preset memory save (previous page) [ PRESET ] No . 1 LOAD OK ? Step 1. Press the number. Preset memory number 1 selection [ PRE S E T ] LOAD No . 1 OK ? and shift keys to select the desired preset memory Preset memory number 2 selection Preset memory number 16 selection [ PRE S E T ] LOAD No . 2 OK ? [ PRE S E T ] LOAD No .
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11.4. Preset Memory Crossfade Time Settings Set the crossfade time when the currently selected preset memory is switched over to a newly recalled one by pressing the preset memory number. [Parameters to be cross-faded] Input/output channel gains, channel ON/OFF, bus assignment, cross-point gains. Parameters other than those above instantaneously switch when the preset memory is recalled.
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11.5. Initial Preset Memory Selection Select the preset memory number (1 – 16) or LAST MEMORY to be automatically recalled when the power is switched on. Preset memory crossfade time settings (previous page) LAST MEMORY selection [ PRESE T ] S TART L A S T M E MO R Y Preset memory number 1 selection Preset memory number 16 selection [ PRESE T ] S TART No . 1 [ PRESE T ] S TART No .
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12. UTILITY SETTINGS The utility setting screen is displayed when the Utility key is pressed. UTILITY 12.1. Stereo Link Settings CHANGE PARAMETER [ UTY ] [ I N 1 ] STR [ I N L I NK 2 ] ON PUSH-ENTER • Rotate the Setting knob to select the channels to be "StereoLinked." • Press the function ON/OFF key to enable or disable the StereoLink setting.
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Step 3. Rotate the Setting knob to select the channels to be grouped together with the channels displayed in the [ ] area on the upper row. (The selected channels are displayed in the " ]" area on the lower row. Step 4. Press the function ON/OFF key to confirm the selected channels. All of the channels set for grouping are displayed on the upper row at the right.
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Crossover configuration (high frequency) settings (previous page) (Low frequency) [ UTY ] [ UTY ] XOVER – L F NONE [ OU T 1 ] XOVER – L F [ OU T 1 ] NONE CHANGE PARAMETER CHANGE PARAMETER • The crossover function (low frequency) is disabled. • The Crossover setting screen is not displayed. PUSH-ENTER PUSH-ENTER [ UTY ] [ UTY ] LPF12 [ OU T 1 ] XOVER – L F [ OU T 8 ] XOVER – L F NONE CHANGE PARAMETER PUSH-ENTER • The crossover function (low frequency) is used as a low-pass filter.
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12.4. NOM Attenuation Settings NOM is an acronym of Number of Open Microphones, and represents the number of microphones in open status (the number of input channels with open gates). The NOM attenuation function automatically adjusts the open microphone's input channel gain depending on the number of open microphones. The open microphone channel gain is attenuated by the gain set on the following setting screen each time the number of open microphones doubles.
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12.5. Contact Input/Output Settings (Available only when D-981, D-983, or D-984VC is used) Many different functions assigned to the input and output contacts of the D-981 or D-983 Remote Control Module, or the D-984VC VCA Control Module can be remotely controlled by connected external equipment. Use the Setting knob to select the functions to be assigned. Notes • To make subsequent settings valid when the power is ON after the initial Contact input/output settings, save the configuration (p. 60).
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[Setting Procedures (Example. Assigning Preset Memory 3 recall to Contact Input 2)] [ UTY ] RM I N 1 : NONE CHANGE PARAMETER 1 PUSH-ENTER [ UTY ] RM I N 2 : NONE 2 [ UTY ] 2 RM I N NONE CHANGE PARAMETER 3 PUSH-ENTER [ UTY ] 2 RM PRESET I N 4 [ UTY ] 1 RM I N 2 : PRESET 1 CHANGE PARAMETER 5 PUSH-ENTER [ UTY ] RM I N 2 : PRESET 3 CHANGE PARAMETER PUSH-ENTER Step 1. Rotate the Setting knob to select the input contact number. Step 2. Press the shift key. Step 3.
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12.5.2. Function assignment to the output contact The following functions can be assigned to output contacts (1 – 8 when the D-981 or D984-VC is used, and 1 – 16 when the D-983 is used). Preset memory recall tally, Channel ON/OFF tally, Contact input status tally, and Line (stereo) input selection tally The procedures for assigning functions are the same as those used when assigning functions to the input contacts. [Screen display operations] Input contact number selection (p.
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12.6. Protect Settings Operation misses can be avoided by protecting front panel-mounted key operations. Tips • To make subsequent protections valid when the power is ON after the initial Protect function settings, save the configuration (p. 60). (However, if the Protection function is enabled in the way described below, the configuration save needs not be performed because the latest configuration including the Protection function settings are automatically saved at the moment of the key operation.
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• Rotate the Setting knob to select the key(s) to be protected. • The Protect function can be enabled or disabled for the selected key(s) by pressing the function ON/OFF key. [ UTY ] PROT EC T ON : ON ALL CHANGE PARAMETER • Enables or disables the Protect function for all keys. ON: Simultaneously enables the Protect function for all keys. ---: Enables the Protect function for a part of keys. OFF: Simultaneously disables the Protect function for all keys.
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12.7. RS-232C Port Settings [Screen display operations] Protect settings (p. 68) Control mode selection Tip Settings are automatically saved as system data, and setting status is maintained even if the power is turned off. RS-232C transmission rate [ UTY ] RS - 2 3 2C 115200bps [ UTY ] RS - 2 3 2C MO D E N O N E All input/output channel gain confirmation (next page) 12.7.1.
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12.8. All Input/Output Channel Gain Confirmation RS-232C port settings (previous page) [ UTY ] ALL FADER I N OU T POS I T I ON • Gains of all input channels can be simultaneously confirmed. Channels are Input Nos. 1 through 12 from left to right. • Gains of all output channels can be simultaneously confirmed. Channels are Output Nos. 1 through 8 from left to right. 12.9.
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12.10. Module Type Confirmation Types of modules installed in the unit's rear slots can be confirmed. [Screen display operations] All input/output channel gain confirmation (previous section) Individual slots confirmation [ UTY ] SLOT 1 :D- 921F / E(A) All slots confirmation SLOT : 1 2 3 4 5 6 7 8 9 T YPE : AABBC – DE F CHANGE PARAMETER PUSH-ENTER [ UTY ] SLOT 2 :D- 921F / E(A) [ UTY ] SLOT 9:D-981(F) Cooling fan operation status confirmation (next page) 12.10.1.
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12.10.2. All slots confirmation SLOT : 123456789 TYPE : AABBC – DE F • Slot numbers are displayed on the upper row, and the inserted module types on the lower row.
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13. RESTORING FACTORY DEFAULT SETTINGS Perform the following procedure to reset all parameters to the factory default settings. Step 1. Turn the power switch OFF. Step 2. Turn the power switch ON while holding down both the and shift keys. Keep pressing both keys until "[SYSTEM] Initialize OK?" is displayed on the LCD screen. DIGITAL MIXER model D-901 CHANGE PARAMETER UTILITY POWER LOCK PRESET ON ON PUSH-ENTER OFF ENTRY SECTION 1 5 2 6 3 7 4 8 PRESET Step 3. Press the Setting knob.
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Step 3. Select the menu items [Start → Program → TOA Digital Audio Control → Update D-901 Firmware]. The D-901 Firmware Update screen appears. 4 6 8 The default communication settings are as follows: Communication port: COM 1 Baud rate: 115200 bps Unless otherwise necessary to change, follow Step 6. To change the settings, follow Step 4. Step 4. Click the Comm Settings button. The Comm Settings screen appears. Step 5.
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[If "No Reply" is displayed] If the screen on the right appears after clicking the Update button, confirm the following: • RS-232C cable specification and connection Check that 9-pin straight cable (male - female) is used. • RS-232C settings at the D-901 (p. 70) Check that the control mode is set to UPDATE*. * Set "NONE" for the version 1.xx firmware. • PC communication settings (above on this page) After confirming all the above items, follow the procedure from Sep 3 again.
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16. CONNECTIONS 16.1. Connection Example 1 BGM player (Cassette deck, CD player, MD player, etc.
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16.2. Connection Example 2 (Broadcasting to two separate zones) BGM player (Cassette deck, CD player, MD player, etc.
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16.3. Removable Terminal Plug Connection Cautions • Be sure to use shielded cables for audio signal lines. • Avoid soldering stranded or shielded cable, as contact resistance may increase when the cable is tightened and the solder is crushed, possibly resulting in an excessive rise in joint temperatures. Cable end treatment Solid or stranded cable 7 mm Shielded cable 7 mm 20 mm Connector connections Step 1. Detach the unit's rear-mounted input/output connector (removable terminal plug) from the unit.
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16.5. Connections of the D-984VC The optional VCA Fader Unit D-911 can remotely control the VCA Control Module D-984VC. However, You can make a special unit having the same functions as the D-911 referring to the technical information described here. 16.5.1. Connecting to the D-984VC • For connecting to each terminal, use a CAT5 (Category 5) UTP cable fitted with a RJ45 connector. Note Use a STP cable in an environment where the cable is susceptible to noises. • Maximum cable length is 100 m.
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[Connections to the output channel VCA terminal] D-901's volume 1 2 3 4 5 6 7 8 0V OUT CH 1 OUT CH 2 OUT CH 3 C (GND) V (+5 V) OUT CH 4 V (+5 V) C (GND) D-984VC [OUT CH 1 - 4] RJ45 Minimum level +5 V 16.5.3. Contact controls (5) – (8) • Preset memory recall function is assigned to the contact input and output pins at the factory. To change this function assignment to give channel ON/OFF or line input selection, refer to p. 69.
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17.
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Only when using the D-984VC Line Output Module (D-971M or D-971E) DA 1 2 3 4 5 6 7 8 M Fader VCA Filter(6) Fader VCA VCA SIG LED VCA VCA VCA VCA VCA COMP Delay DA 4 DA SIG LED GR Trim ON COMP Delay DA 5 SIG LED GR Trim ON COMP Delay 6 Digital Output Module (D-972AE) SIG LED GR Trim ON Filter(6) Fader DA 3 COMP Delay GR Trim ON Filter(6) Fader Line Output Module (D-971R) SIG LED Filter(6) Fader 2 COMP Delay GR Trim ON Filter(6) Fader DA SIG LED Filter(6) Fader DA 1
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18. LEVEL DIAGRAMS 18.1. Analog Input/Output Microphone/Line Input Module D-921F, D-921E, D-922F, or D-922E DSP Line Output Module D-971M, D-971E, or D-971R Digital dBu Max. Input (+24) +20 +10 dBu Clipping Level (+20 dB) +20 Peak LED Turns ON (+17 dB) LINE (+4) +10 (0 dB) (+4) D-971M/E 0 -10 0 LINE (-10) (-10) D-971R -20 -30 -10 -20 MIC (-36) SIG LED Turns ON (-40 dB) -40 -50 MIC (-50) 18.2.
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19. PARAMETER SETTING ITEMS AND SETTING RANGES Note: Underlined parameters are factory-preset. [Input and Output/Trim Settings] Setting Item Input Channel Gain Input Trim Gain Input Trim Polarity Input Channel Group Trim Gain Output Channel Gain Output Channel Group Trim Gain Setting Range –∞ to +10 dB –15 to +15 dB (0 dB), 0.1 dB steps NORMAL, INVERSE –∞ to +10 dB, 0.1 dB steps –∞ to +10 dB (0 dB) –∞ to +10 dB, 0.
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[Auto-Leveler Settings] Setting Item Target Level Maximum Gain Attack Time Release Time Setting Range –20 to +10 dB (0 dB), 1 dB steps 0 to +20 dB (+6 dB), 1 dB steps 10, 20, 50, 70, 100, 120, 150, 200,250, 300, 500, 700 ms, 1, 1.2, 1.5, 2, 2.5, 3, 5, 7, 10 s 100, 120, 150, 200, 250, 300, 500, 700 ms, 1, 1.2, 1.5, 2, 2.5, 3, 5, 7, 10 s [Level Sense Settings] Setting Item Attack Time Release Time Setting Range 0.2, 0.5, 0.7, 1.0, 1.
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[Bus Assignment and Crosspoint Gain Settings] Setting Item Input 1 Input 2 – 12 Microphone Bus Gain Setting Range Output 1 – 8: ON, OFF Microphone Bus: ON, OFF Same as above Output 1 – 8: ON, OFF –∞ to 0 dB, 1 dB steps [Crossover Settings] Setting Item Cutoff Frequency Slope BS: Bessel BW: Butterworth LR: Likwitz-Riley VQ: Variable Q Q Setting Range 20 Hz – 20 kHz (1 kHz), 1/24 octave steps Through, 6 dB/oct, 12 dB/oct BS, 12 dB/oct VQ 12 dB/oct BW, 12 dB/oct LR, 18 dB/oct BS, 18 dB/oct VQ 18 dB/oct BW,
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[Feedback Suppression Settings] Parameter DYNAMIC AUTO START AUTO : DYNAMIC CLEAR DYNAMIC CLEAR AUTO Setting Item Dynamic mode ON/OFF Auto mode activation Number of the filters used in each mode Reset the filters set for Dynamic mode Reset the filters set for Auto mode Setting Range ON, OFF AUTO : 0 – 9 (7), DYNAMIC : 3 – 12 (5) [Feedback Suppression Filter Setting] Setting Item Gain Center Frequency Q Setting Range –15 to +15 dB, 0.1 dB steps 20 Hz – 20 kHz, 1/24 octave steps 0.267 – 69.
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20. SPECIFICATIONS 20.1. D-901 Digital Mixer Signal Processing Power Source Power Consumption Frequency Response Input Output Feedback Suppression Function Auto Mixing Function Auto Mixing Group Equalizer/Filter Compressor /Auto-Leveler Delay Matrix Crosspoint Gain Preset Memory Auxiliary Function Control Front Panel Section Rear Panel Operating Temperature Finish Dimensions Weight 100 – 120 V, 230 V AC, 50/60 Hz 40 W 20 – 20,000 Hz, ±1 dB (±4 dB* input) Max.
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20.2. D-921F Microphone/Line Input Module (Optional) Input A/D Converter Sampling Frequency Frequency Response Dynamic Range Total Harmonic Distortion Finish Dimensions Weight 2 channels, Mic/Line changeable Mic: –50/–36 dB*, 4.
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20.5. D-922E Microphone/Line Input Module (Optional) Input A/D Converter Sampling Frequency Frequency Response Dynamic Range Total Harmonic Distortion Finish Dimensions Weight 2 channels, –50/–36/–10/+4 dB* (Selectable with the DIP switch), 4.
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20.9. D-971M Line Output Module (Optional) Output D/A Converter Sampling Frequency Frequency Response Dynamic Range Total Harmonic Distortion Finish Dimensions Weight 4 channels, +4 dB*, adaptable load of over 600 Ω, electronically-balanced, equivalent to XLR-3-32 type 24 bits 48 kHz 20 – 20,000 Hz, ±1 dB Over 100 dB (IHF-A weighted) Under 0.05% Panel: Pre-coated steel plate, black (30% glossy) 35 (w) x 119.5 (h) x 178.4 (d) mm 165 g 20.10.
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20.13. D-961SP Digital Output Module (Optional) Output Applicable Format Sampling Frequency Finish Dimensions Weight Stereo 2 channels (with splitter, each pair of optical output and coaxial output in parallel), 0.5 V (p-p), 75 Ω, Coaxial RCA jack x 2 Square optical connector x 2 S/PDIF (2 channel multiplexed) 48 kHz Panel: Pre-coated steel plate, black (30% glossy) 35 (w) x 119.5 (h) x 178.4 (d) mm 130 g 20.14.
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20.15. D-983 Remote Control Module (Optional) Contact Input Preset Memory Selection Control Volume Control Channel Stereo Selection Contact Output Finish Dimensions Weight COM + Terminals 1 – 24: Open voltage 5 V DC, short-circuit current 5 mA, RJ45 connector x 4 Any preset memory can be recalled. Control method: No-voltage make of over 100 ms or no-voltage make single pulse of over 100 ms Any input/output channel volume can be turned UP or DOWN.