Toa D-901 Instruction Manual
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Toa D-901 Instruction Manual

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INSTRUCTION MANUAL
DIGITAL MIXER
D-901
(Version 2)
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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  • Page 1 INSTRUCTION MANUAL DIGITAL MIXER D-901 (Version 2) 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.

  • Page 2: Table Of Contents

    1. SAFETY PRECAUTIONS 2. GENERAL DESCRIPTION 3. FEATURES 4. HANDLING PRECAUTIONS 5. NOMENCLATURE AND FUNCTIONS 5.1. D-901 Digital Mixer Front ... 8 Rear ... 11 5.2. Optional Modules 5.2.1. D-921F Microphone/Line Input Module ... 12 5.2.2. D-921E Microphone/Line Input Module ... 12 5.2.3.
  • Page 3 8.8. Compressor/Auto-Leveler Mode Selection ... 28 8.9. Compressor Settings (only when the compressor mode is selected in Section 8.8.) 8.9.1. Threshold level settings ... 28 8.9.2. Ratio settings ... 29 8.9.3. Attack time settings ... 29 8.9.4. Release time settings ... 29 8.9.5.
  • Page 4 9.4.8. All-pass filter ... 46 9.5. Compressor Settings 9.5.1. Threshold level settings ... 47 9.5.2. Ratio settings ... 47 9.5.3. Attack time settings ... 48 9.5.4. Release time settings ... 48 9.5.5. Makeup gain settings ... 48 9.6. Delay Time Settings ... 48 10.
  • Page 5 ... 75 19. PARAMETER SETTING ITEMS AND SETTING RANGES 20. SPECIFICATIONS 20.1. D-901 Digital Mixer ... 80 20.2. D-921F Microphone/Line Input Module (Optional) ... 81 20.3. D-921E Microphone/Line Input Module (Optional) ... 81 20.4. D-922F Microphone/Line Input Module (Optional) ... 81 20.5.

  • Page 6: Safety Precautions

    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. •...

  • Page 7: General Description

    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"...

  • Page 8: Nomenclature And Functions

    OUTPUT (Refer to p. 10.) Lights when the power is switched ON. p. 63.) Flashes when the D-901 is communicating with a ENTER] This knob can be rotated to change parameters or select setting contents, and also operates as a push switch.
  • Page 9 Preset Memory Selection Section PRESET Input Channel Control Section INPUT 15. Input Channel Selector Keys [1 – 12] Used to select the input channel for sound volume adjustment or parameter setting. The Input channel indicator [SEL] (16) lights when a key is pressed, causing the corresponding channel number to be displayed on the setting screen.
  • Page 10 Microphone Bus Control Section EFFECT MIC BUS 20. Microphone Bus Selector Key [SEL] Used to set the microphone bus parameters or adjust the volume. Pressing this key causes the Output Channel Control Section PEAK +12dB +6dB -6dB -12dB -20dB -40dB OUTPUT 25.

  • Page 11: Rear

    [Rear] RS-232C DIGITAL MIXER SIGNAL model D-901 TOA Corporation MADE IN JAPAN Slot 9 Control module slot 31. Cooling Fan CAUTION Do not block the fan exhaust vent. Doing so may cause heat to build up inside the unit and result in fire.

  • Page 12: Optional Modules

    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.

  • Page 13: D-922E Microphone/Line Input Module

    5.2.4. D-922E Microphone/Line Input Module OFF : PHANTOM NORMAL LIFT : GND LINE +4dB(LINE) -36dB(MIC) -10dB(LINE) -50dB(MIC) OFF : PHANTOM NORMAL LIFT : GND LINE +4dB(LINE) -36dB(MIC) -10dB(LINE) -50dB(MIC) ACCESSORY I.T.E 78CK 5.2.5. D-936R Stereo Input Module ACCESSORY I.T.E 78CK 5.2.6.

  • Page 14: D-971E Line Output Module

    5.2.7. D-971E Line Output Module ACCESSORY I.T.E 78CK 5.2.8. D-971R Line Output Module 2(R) 1(L) 4(R) 3(L) ACCESSORY I.T.E 78CK 5.2.9. D-981 Remote Control Module INPUT OUTPUT ACCESSORY I.T.E 78CK 53. Monaural Output Terminal [1, 2, 3, 4] Electronically-balanced, removable terminal block. (H: Hot; C: Cold; E: Ground.) Output signal level: +4 dB 54.

  • Page 15: Setting Basics

    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.

  • Page 16: Setting Flowcharts

    Note It is highly recommended that any changed parameters be immediately saved as preset memory on the Preset Memory setting screen. (Refer to p. 54, 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.
  • Page 17 (From the previous page) (Compressor mode) Compressor settings (p. 28) Threshold Level Settings Attack Time Settings Threshold Level Settings Auto-Mixing Group Settings Priority Settings NOM Attenuation ON/OFF Settings Input Channel Gain Settings Input Channel Group Trim Gain Settings Bus Assignment Settings Input 12 Gain Settings (To next page) (From the previous page)
  • Page 18 (From the previous page) Output 1 Gain Settings Output 8 Gain Settings * The number of filters to be displayed differs depending on crossover configuration settings. (Refer to p. 57.) Output Channel Gain Settings (p. 39) Output Channel Group Trim Gain Settings (p.

  • Page 19: Microphone Bus Settings

    6.2.2. Microphone bus settings Microphone bus selector key Dynamic Mode Settings Mode Confirmation (Filter 1 settings) Mode Confirmation (Filter 12 settings) Effect key EFFECT Echo Gain Settings Bus Assignment Settings 6.2.3. Preset memory settings Preset key PRESET Preset Memory Save Preset Memory Recall Preset Memory Delete Initial Preset Memory Selection...

  • Page 20: Utility Settings

    6.2.4. Utility settings Utility key UTILITY Stereo Link Settings Group Settings Crossover Configuration Settings NOM Attenuation Settings (p. 59) Input Contact Number Selection Output Contact Number Selection Protect Settings Control Mode Selection All Input/Output Channel Gain Confirmation Individual Slots Confirmation Cooling Fan Operating Status Confirmation Firmware Version Confirmation...

  • Page 21: Setting Keys And Knob

    Input channel control section INPUT Input volume Input channel control selector keys Input channel ON/OFF key Parameter input section DIGITAL MIXER model D-901 UTILITY LOCK PRESET ENTRY SECTION PRESET Preset memory selection section Microphone bus control section EFFECT MIC BUS...

  • Page 22: Setting Screen Displays

    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 switches the display to the input trim gain setting screen. The [IN 1] is displayed on the first line, and the IN 1 (Input 1) trim gain becomes the setting object.

  • Page 23: Input/Output Gain Settings

    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.

  • Page 24: Input-Related Settings

    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 [ I N P H A N T O M O F F...

  • Page 25: Line (Stereo) Input Selection (Only With D-936R Module)

    8.4. Line (Stereo) Input Selection Line input mode selection (previous page) [ I N L I N E S E L [ 1 ] 8.5. Input Trim Settings Using D-921E or D-921F: PAD (input sensitivity) settings (previous page) Using D-936R: Line (stereo) input selection (above item) Gain Polarity [ I N 1 ] T R I M...

  • Page 26: High-Pass Filter Settings

    8.6. 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). [Screen display operations] Input trim settings (previous page) Cutoff frequency...

  • Page 27: Equalizer Settings

    8.7. 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. [Screen display operations] High-pass filter settings (previous page) Gain [ I N 1 ] P E Q - L...

  • Page 28: Compressor/Auto-Leveler Mode Selection

    8.8. Compressor/Auto-Leveler Mode Selection Select which function to use, compressor (next section) or auto-leveler (p. 30). Equalizer Settings (previous page) [ I N C O M P M O D E C O M P Compressor settings (next section) or auto-leveler settings (p.

  • Page 29: Ratio Settings

    8.9.2. Ratio settings CHANGE PARAMETER [ I N C O M P R A T I O 1 : 1 PUSH-ENTER 8.9.3. Attack time settings CHANGE PARAMETER [ I N C O M P A T T A C K 1 0 .

  • Page 30: Auto-Leveler Settings

    8.10. Auto-Leveler Settings 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. Note that setting an excessive amount of gain increases the input sensitivity, easily causing feedback.

  • Page 31: Release Time Settings

    8.10.4. Release time settings PARAMETER [ I N L E V E L E R R E L E A S E 1 . 0 0 s PUSH-ENTER 8.11. Level Sense Settings The level sense refers to a parameter used to adjust the sensitivity by which the gate detects an input signal level.

  • Page 32: Gate Settings

    8.12. Gate Settings The gate function allows the input signal to be passed, attenuated or cut depending on its signal level. The gate allows the signal to pass when open, and attenuates or cuts the signal when closed. The gate opens when the input signal reaches a level above the Threshold plus Hysteresis parameter (half the Hysteresis) as shown in the figure at right.

  • Page 33: Depth Settings

    8.12.3. Depth settings CHANGE PARAMETER [ I N G A T E D E P T H – 2 0 d B PUSH-ENTER 8.12.4. Hold time settings CHANGE PARAMETER [ I N G A T E H O L D 1 0 .

  • Page 34: Auto-Mixing Group Settings

    8.13. Auto-Mixing Group Settings Both the Ducker function (next page) and the NOM Attenuation function (p. 36) 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.

  • Page 35: Ducker Settings

    PUSH-ENTER 8.14. Ducker Settings The ducker function is one of the D-901's auto-mixing functions, and automatically adjusts individual input channel gains in response to input signal level. Refer to the previous page for the block diagram of the Auto- Mixing section.

  • Page 36: Attack Time Settings

    1 0 . 0 m s 8.15. NOM Attenuation ON/OFF Settings The NOM Attenuation function is one of the D-901's auto-mixing functions, and automatically adjusts individual input channel gains in response to input signal level. Refer to p. 34 for the block diagram of the Auto-Mixing section.

  • Page 37: Input Channel Gain Settings

    8.16. Input Channel Gain Settings NOM attenuation ON/OFF settings (previous page) [ I N F A D E R – I N F d B Bus assignment settings (next page) or Input channel group trim gain settings (next item) 8.17. Input Channel Group Trim Gain Settings CHANGE PARAMETER [ I N...

  • Page 38: Bus Assignment And Crosspoint Gain Settings

    8.18. 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 ] A S S I G N [ I N 1 ] G A I N [ O U T 1 ] –...

  • Page 39: Output Settings

    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 [ O U T 1 ] F A D E R 0 .

  • Page 40: Crossover Settings (Only When Crossover Function Is Enabled)

    9.3. Crossover Settings The following screens are displayed only when the crossover function is enabled on the Utility setting screen. (Refer to p. 57 for more information.) [Screen display operations] Output channel gain settings (previous page) or Output channel group trim gain settings (previous page) Slope [ O U T 1 ] X O V E R - H F...

  • Page 41: Cutoff Frequency Settings

    9.3.2. Cutoff frequency settings (High frequency) PARAMETER [ O U T 1 ] X O V E R - H F F R E Q 1 . 0 0 k H z PUSH-ENTER (Low frequency) PARAMETER [ O U T 1 ] X O V E R - L F F R E Q 1 .

  • Page 42: Filter Settings

    9.4. Filter Settings 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] Parametric equalizer High-pass filter (6 dB) High-pass filter (12 dB)
  • Page 43 [Setting procedures (Example of setting output 1 – filter 2 as a horn equalizer)] [ O U T 1 ] T Y P E [ O U T 1 ] T Y P E [ O U T 1 ] T Y P E Step 1.

  • Page 44: Parametric Equalizer

    9.4.1. Parametric equalizer [ O U T 1 ] F I L T E R 1 T Y P E P E Q [Gain settings] [ O U T 1 ] F I L T E R 1 G A I N + 0 .

  • Page 45: Low-Pass Filter

    [Q settings] CHANGE PARAMETER [ O U T 1 ] F I L T E R 1 1 . 0 0 0 PUSH-ENTER 9.4.3. Low-pass filter CHANGE PARAMETER [ O U T 1 ] F I L T E R 1 T Y P E L P F - 6 d B PUSH-ENTER...

  • Page 46: Horn Equalizer

    9.4.6. Horn equalizer [ O U T 1 ] F I L T E R 1 T Y P E H O R N [Gain settings] [ O U T 1 ] F I L T E R 1 G A I N + 0 .

  • Page 47: Compressor Settings

    [Center frequency settings] CHANGE PARAMETER [ O U T 1 ] F I L T E R 1 F R E Q 1 . 0 0 k H z PUSH-ENTER [Q settings] CHANGE PARAMETER [ O U T 1 ] F I L T E R 1 0 .

  • Page 48: Attack Time Settings

    9.5.3. Attack time settings [ O U T 1 ] C O M P A T T A C K 1 0 . 0 m s 9.5.4. Release time settings [ O U T 1 ] C O M P R E L E A S E 5 0 0 m s 9.5.5.

  • Page 49: Microphone Bus Settings

    10. MICROPHONE BUS SETTINGS The Microphone Bus setting screen is displayed when the Microphone Bus selector key is pressed. 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.

  • Page 50: Auto Mode Activation

    10.1.2. Auto mode activation [ M i c B ] F B S A U T O S T A R T O K ? 10.1.3. Filter number settings [ M i c B ] F B S A U T O : D Y N 7 : 5 10.1.4.

  • Page 51: Feedback Suppression Filter Setting Confirmation

    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. 49) Frequency Filter 1 mode confirmation confirmation [ M i c B ] F I L T E R 1 [ M i c B ] F I L T E R 1 T Y P E A U T O...

  • Page 52: Effect (Echo) Settings

    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 EFFECT Screen shift keys on the Microphone Bus setting screen.

  • Page 53: Initial Echo (Pre-) Delay Settings

    10.3.4. Initial echo (pre-) delay settings CHANGE PARAMETER [ M i c B ] E C H O P r e D L Y 8 0 m s PUSH-ENTER 10.3.5. Low-pass filter frequency settings CHANGE PARAMETER [ M i c B ] E C H O L P F - F 3 .

  • Page 54: Preset Memory Settings

    11. PRESET MEMORY SETTINGS The preset setting screen is displayed when the Preset key is pressed. PRESET 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).

  • Page 55: Preset Memory Delete

    11.3. Preset Memory Delete Delete the stored preset memory. Preset memory recall (previous page) CHANGE PARAMETER [ P R E S E T ] D E L E T E N o . O K ? PUSH-ENTER 11.4. Initial Preset Memory Selection Select the preset memory number (1 –...

  • Page 56: Utility Settings

    12. UTILITY SETTINGS The utility setting screen is displayed when the Utility key is pressed. UTILITY 12.1. Stereo Link Settings [ U T Y ] S T R L I N K [ I N [ I N 12.2. Group Settings By grouping multiple channels together, the gains of these channels can be simultaneously adjusted using...

  • Page 57: Crossover Configuration Settings

    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 " 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.
  • Page 58 Crossover configuration (high frequency) settings (previous page) (Low frequency) [ U T Y ] X O V E R – L F [ O U T 1 ] N O N E CHANGE PARAMETER PUSH-ENTER [ U T Y ] X O V E R –...

  • Page 59: Nom Attenuation Settings

    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.

  • Page 60: Contact Input/Output Settings (Only When The D-981 Is Used)

    12.5. Contact Input/Output Settings Many different functions assigned to the input and output contacts of the D-981 Remote Control Module can be remotely controlled by connected external equipment. Use the Setting knob to select the functions to be assigned. Note To make subsequent settings valid when the power is ON after the initial Contact input/output settings, save the configuration (p.
  • Page 61 [Setting Procedures (Example. Assigning Preset Memory 3 recall to Contact Input 2)] [ U T Y ] 1 : N O N E CHANGE PARAMETER PUSH-ENTER [ U T Y ] 2 : N O N E Step 1. Rotate the Setting knob to select the input contact number. Step 2.

  • Page 62: Function Assignment To The Output Contact

    12.5.2. Function assignment to the output contact Each of the following functions can be assigned to output contacts 1 – 8: 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.

  • Page 63: Protect Settings

    Bus assignment operations by way of the Input and Output channel selector keys are also locked and disabled. Individual Function Key Protect setting screen (Refer to the next page.) unlocked. Enables the Protect function, and validates the Protect function settings. CHG PARAM * DIGITAL MIXER model D-901 CHANGE PARAMETER LOCK PUSH-ENTER ENTRY SECTION PRESET INPUT...
  • Page 64 • 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. [ U T Y ] P R O T E C T A L L : O N CHANGE...

  • Page 65: Rs-232C Port Settings

    International site, see below). Tips • While the D-901 is communicating with a PC, the front-mounted system lock indicator flashes. • In the above status, attempting to change settings with the front-mounted knobs or keys notifies the operator of prohibited operation by way of the indication shown below.

  • Page 66: All Input/Output Channel Gain Confirmation

    12.8. All Input/Output Channel Gain Confirmation RS-232C port settings (previous page) [ U T Y ] A L L F A D E R P O S I T I O N 12.9. 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 (above item) Individual slots...

  • Page 67: All Slots Confirmation

    12.9.2. All slots confirmation S L O T : 1 2 3 4 5 6 7 8 9 T Y P E : A A B B C – D E F 12.10. Cooling Fan Operating Status Confirmation Module type confirmation (previous page) [ U T Y ] F A N R U N N I N G...

  • Page 68: Restoring Factory Default Settings

    The D-901's firmware of the latest version is available for download at our website http://www.toa- products.com/international. Update the firmware using the following steps. Step 1. Connect both RS-232C ports of the D-901 and the PC using a 9-pin straight cable (male-to-female cord). Step 2. Make RS-232C port settings at the D-901.
  • Page 69 Step 4. Click the Comm Settings button. The Comm Settings screen appears. Step 5. Set the PC's Com port the D-901 is connected to, and the Speed (baud rate) equal to the D-901's RS- 232C transmission rate. Click OK, then the Comm Settings screen closes.

  • Page 70: Rack Mounting

    67.) [If an error indication appears on the D-901's LCD screen] (See the screens below.) Click the Update button of the D-901 firmware update screen, and "Complete!" is displayed on its screen. Then, the error indication disappears. After confirming its disappearance, restart the procedure from Step 2 without turning the D-901's power off.

  • Page 71: Connections

    16.1. Connection Example 1 AMX, Crestron, or other control equipment D-901 RS-232C ACOUS AC100V 50/60Hz 45W DIGITAL MIXER SIGNAL model D-901 TOA Corporation MADE IN JAPAN ACCESSORY I.T.E 78CK Remote controller BGM player (Cassette deck, CD player, MD player, etc.) INPUT OUTPUT ACCESSORY I.T.E 78CK...

  • Page 72: Connection Example 2 (Broadcasting To Two Separate Zones)

    16.2. Connection Example 2 (Broadcasting to two separate zones) D-901 RS-232C ACOUS AC100V 50/60Hz 45W DIGITAL MIXER SIGNAL model D-901 TOA Corporation MADE IN JAPAN Remote controller Main speaker (R) Main speaker (L) BGM player (Cassette deck, CD player, MD player, etc.)

  • Page 73: Removable Terminal Plug Connection

    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...

  • Page 74: Block Diagram

    17. BLOCK DIAGRAM Control Selector...

  • Page 75: Level Diagram

    18. LEVEL DIAGRAM Microphone/Line Input Module D-921F, D-921E, D-922F, or D-922E Clipping Level (+24) LINE (+4) LINE (-10) (-36) (-50) Digital (+20 dB) Peak LED Turns ON (+17 dB) (0 dB) SIG LED Turns ON (-40 dB) Line Output Module D-971M, D-971E, or D-971R (+4) D-971M/E...

  • Page 76: Parameter Setting Items And Setting Ranges

    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 [D-921F or D921E settings (enabled when the module is mounted)] Setting Item Phantom Power...
  • Page 77 [Auto-Leveler Settings] Setting Item Target Level Maximum Gain Attack Time Release Time [Level Sense Settings] Setting Item Attack Time Release Time [Gate Settings] Setting Item Threshold Level Hysteresis Depth Hold Time Attack Time Release Time ON/OFF [Auto-Mixing Group Settings] Setting Item Auto-Mixing Group [Ducker Settings] Setting Item...
  • Page 78 [Bus Assignment and Crosspoint Gain Settings] Setting Item Input 1 Input 2 – 12 Microphone Bus Gain [Crossover Settings] Setting Item Cutoff Frequency Slope BS: Bessel BW: Butterworth LR: Likwitz-Riley VQ: Variable Q GAIN Polarity [Filter Settings] Filter Type Parametric Equalizer (PEQ) High-pass Filter (HPF) Low-pass Filter (LPF)
  • Page 79 [Feedback Suppression Settings] Parameter DYNAMIC Dynamic mode ON/OFF AUTO START Auto mode activation AUTO : DYNAMIC Number of the filters used in each mode CLEAR DYNAMIC Reset the filters set for Dynamic mode CLEAR AUTO Reset the filters set for Auto mode [Feedback Suppression Filter Setting] Setting Item Gain...

  • Page 80: Specifications

    20. SPECIFICATIONS 20.1. D-901 Digital Mixer 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...

  • Page 81: D-921F Microphone/Line Input Module (Optional)

    20.2. D-921F Microphone/Line Input Module (Optional) Input 2 channels, Mic/Line changeable Phantom power supply (+15 V, can be used when set for the microphone) Ground lift switch A/D Converter 24 bits Sampling Frequency 48 kHz Frequency Response 20 – 20,000 Hz, ±1 dB (+4 dB* input) Dynamic Range Over 100 dB (IHF-A weighted) (+4 dB* input) Total Harmonic Distortion...

  • Page 82: D-922E Microphone/Line Input Module (Optional)

    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 • Accessories 3-pin removable terminal plug (preinstalled on the unit) ... 2 20.6. D-936R Stereo Input Module (Optional) Input A/D Converter Sampling Frequency Frequency Response...

  • Page 83: D-971E Line Output Module (Optional)

    20.8. D-971E Line Output Module (Optional) 4 channels, +4 dB*, adaptable load of over 600 Ω, electronically-balanced, Output 3-pin removable terminal block D/A Converter 24 bits Sampling Frequency 48 kHz Frequency Response 20 – 20,000 Hz, ±1 dB Dynamic Range Over 100 dB (IHF-A weighted) Total Harmonic Distortion Under 0.05%...

  • Page 84: D-981 Remote Control Module (Optional)

    20.10. D-981 Remote Control Module (Optional) Contact Input COM + Terminals 1 – 8: Open voltage: 5 V DC, short-circuit: 5 mA, Preset Memory Any preset memory can be recalled. Selection Control method: No-voltage make of over 100 ms/ Volume Volume can be turned UP or DOWN for any input and output channels.

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