TOA Electronics D-901 User Manual

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.

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 .................................................................................................................. 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. D-922F Microphone/Line Input Module .................................................. 13

5.2.4. D-922E Microphone/Line Input Module ................................................. 13

5.2.5. D-936R Stereo Input Module ................................................................. 13

5.2.6. D-923AE Digital Input Module ................................................................ 14

5.2.7. D-937SP Digital Input Module ................................................................ 14

5.2.8. D-971M Line Output Module .................................................................. 14

5.2.9. D-971E Line Output Module .................................................................. 14

5.2.10. D-971R Line Output Module ................................................................ 15

5.2.11. D-972AE Digital Output Module ........................................................... 15

5.2.12. D-961SP Digital Output Module ........................................................... 15

5.2.13. D-981 Remote Control Module ............................................................ 15

5.2.14. D-983 Remote Control Module ............................................................ 16

5.2.15. D-984VC VCA Control Module ............................................................ 16

6. SETTING BASICS

6.1. Setting Procedures .......................................................................................... 17

6.2. Setting Flowcharts

6.2.1. Input and output settings ........................................................................ 18

6.2.2. Microphone bus settings ........................................................................ 21

6.2.3. Preset memory settings ......................................................................... 21

6.2.4. Utility settings ......................................................................................... 22

6.3. Setting Keys and Knob .................................................................................... 23

6.4. Setting Screen Displays ................................................................................... 24

7. INPUT/OUTPUT GAIN SETTINGS

7.1. Input and Output Channel Control Section Settings ........................................ 25

7.2. Input/Output Gain Setting Screen Operation ................................................... 25

7.3. Input/Output Channel Gain Setting Screen Operation ..................................... 25

8. INPUT-RELATED SETTINGS

8.1. Phantom Power ON/OFF Settings (Only with D-921E or D-921F module) ..... 26

8.2. PAD (Input Sensitivity) Settings (Only with D-921E or D-921F module) .......... 26

8.3. Line Input Mode Selection (Only with D-936R module) ................................... 26

8.4. Channel Status Verification (Only with D-923AE or D-937SP module)

8.4.1. Input signal status verification ................................................................ 27

8.4.2. Sampling frequency verification ............................................................. 27

8.4.3. Pre-emphasis verification ...................................................................... 27

8.5. Line (Stereo) Input Selection (Only with D-936R or D-937SP module) ........... 28

8.6. Input Trim Settings

8.6.1. Input trim gain settings ........................................................................... 28

8.6.2. Input trim polarity settings ...................................................................... 28

8.7. High-Pass Filter Settings

8.7.1. Cutoff frequency settings ....................................................................... 29

8.7.2. Q settings ............................................................................................... 29

8.8. Equalizer Settings

8.8.1. Gain settings .......................................................................................... 30

8.8.2. Center frequency settings ...................................................................... 30

8.8.3. Q settings ............................................................................................... 30

8.9. Compressor/Auto-Leveler Mode Selection ...................................................... 31

8.10. Compressor Settings (only when the compressor mode is selected in Section 8.9.)

8.10.1. Threshold level settings ....................................................................... 31

8.10.2. Ratio settings ....................................................................................... 32

8.10.3. Attack time settings .............................................................................. 32

8.10.4. Release time settings ........................................................................... 32

8.10.5. Makeup gain settings ........................................................................... 32

8.11. Auto-Leveler Settings (only when the auto-leveler mode is selected in Section 8.9.)

8.11.1. Target level settings ............................................................................. 33

8.11.2. Maximum gain settings ........................................................................ 33

8.11.3. Attack time settings .............................................................................. 33

8.11.4. Release time settings ........................................................................... 34

8.12. Level Sense Settings

8.12.1. Attack time settings .............................................................................. 34

8.12.2. Release time settings ........................................................................... 34

8.13. Gate Settings

8.13.1. Threshold level settings ....................................................................... 35

8.13.2. Hysteresis settings ............................................................................... 35

8.13.3. Depth settings ...................................................................................... 35

8.13.4. Hold time settings ................................................................................ 35

8.13.5. Attack time settings .............................................................................. 35

8.13.6. Release time settings ........................................................................... 35

8.14. Auto-Mixing Group Settings ............................................................................. 37

8.15. Ducker Settings

8.15.1. Priority settings .................................................................................... 38

8.15.2. Attenuation settings ............................................................................. 38

8.15.3. Attack time settings .............................................................................. 39

8.15.4. Release time settings ........................................................................... 39

8.16. NOM Attenuation ON/OFF Settings ................................................................. 39

8.17. Input Channel Gain Settings ............................................................................ 40

8.18. Input Channel Group Trim Gain Settings (Only when Group is set) ................ 40

8.19. Bus Assignment and Crosspoint Gain Settings

8.19.1. Bus assignment settings ...................................................................... 41

8.19.2. Crosspoint gain settings ....................................................................... 41

9. OUTPUT SETTINGS

9.1. Output Channel Gain Settings ......................................................................... 42

9.2. Output Channel Group Trim Gain Settings (Only when Group is set) ............. 42

9.3. Crossover Settings (Only when Crossover function is enabled)

9.3.1. Slope settings ........................................................................................ 43

9.3.2. Cutoff frequency settings ....................................................................... 44

9.3.3. Q settings ............................................................................................... 44

9.3.4. Q2 settings ............................................................................................. 44

9.3.5. Crossover gain settings ......................................................................... 44

9.3.6. Crossover filter polarity settings ............................................................. 44

9.4. Filter Settings ................................................................................................... 45

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 .................................................................................. 48

9.4.6. Horn equalizer ........................................................................................ 49

9.4.7. Notch filter .............................................................................................. 49

9.4.8. All-pass filter .......................................................................................... 49

9.5. Compressor Settings

9.5.1. Threshold level settings ......................................................................... 50

9.5.2. Ratio settings ......................................................................................... 50

9.5.3. Attack time settings ................................................................................ 51

9.5.4. Release time settings ............................................................................. 51

9.5.5. Makeup gain settings ............................................................................. 51

9.6. Delay Time Settings ......................................................................................... 51

10. MICROPHONE BUS SETTINGS

10.1. Feedback Suppression Settings

10.1.1. Dynamic mode settings ...................................................................... 52

10.1.2. Auto mode activation ......................................................................... 53

10.1.3. Filter number settings ........................................................................ 53

10.1.4. Dynamic mode filter initialization ........................................................ 53

10.1.5. Auto mode filter initialization .............................................................. 53

10.2. Feedback Suppression Filter Setting Confirmation

10.2.1. Mode confirmation ............................................................................. 54

10.2.2. Frequency confirmation ..................................................................... 54

10.2.3. Filter gain confirmation ....................................................................... 54

10.2.4. Q confirmation .................................................................................... 54

10.3. Effect (Echo) Settings

10.3.1. Echo gain settings .............................................................................. 55

10.3.2. Feedback ratio settings ...................................................................... 55

10.3.3. Feedback delay settings .................................................................... 55

10.3.4. Initial echo (pre-) delay settings ......................................................... 56

10.3.5. Low-pass filter frequency settings ...................................................... 56

10.3.6. Low-pass filter Q settings ................................................................... 56

10.4. Bus Assignment and Crosspoint Gain Settings (Microphone Bus →→Output Channel)

10.4.1. Bus assignment settings .................................................................... 56

10.4.2. Crosspoint gain settings ..................................................................... 56

11. PRESET MEMORY SETTINGS

11.1. Preset Memory Save ..................................................................................... 57

11.2. Preset Memory Recall .................................................................................... 58

11.3. Preset Memory Delete ................................................................................... 58

11.4. Preset Memory Crossfade Time Settings ...................................................... 59

11.5. Initial Preset Memory Selection ..................................................................... 60

11.6. Configuration Save ........................................................................................ 60

12. UTILITY SETTINGS

12.1. Stereo Link Settings ....................................................................................... 61

12.2. Group Settings ............................................................................................... 61

12.3. Crossover Configuration Settings .................................................................. 62

12.4. NOM Attenuation Settings ............................................................................. 64

12.5. Contact Input/Output Settings (Available only when D-981, D-983 or D-984VC is used)

12.5.1. Function assignment to the input contact .......................................... 65

12.5.2. Function assignment to the output contact ........................................ 67

12.6. Protect Settings .............................................................................................. 68

12.7. RS-232C Port Settings

12.7.1. Control mode selection ...................................................................... 70

12.7.2. RS-232C transmission rate settings .................................................. 70

12.8. All Input/Output Channel Gain Confirmation .................................................. 71

12.9. All Input/Output VCA Status Confirmation

(Only when the D-984VC is used) ................................................................. 71

12.10. Module Type Confirmation

12.10.1. Individual slots confirmation ............................................................. 72

12.10.2. All slots confirmation ........................................................................ 73

12.11. Cooling Fan Operating Status Confirmation .................................................. 73

12.12. Firmware Version Confirmation ..................................................................... 73

13. RESTORING FACTORY DEFAULT SETTINGS ..................................... 74

14. FIRMWARE UPDATE ...................................................................................... 74

15. RACK MOUNTING ........................................................................................... 76

16. CONNECTIONS

16.1. Connection Example 1 ................................................................................... 77

16.2. Connection Example 2 (Broadcasting to two separate zones) ...................... 77

16.3. Removable Terminal Plug Connection .......................................................... 79

16.4. Ferrite Cable Clamp Attachment (For D-972AE only) .................................... 79

16.5. Connections of the D-984VC

16.5.1. Connecting to the D-984VC ............................................................... 80

16.5.2. Input and output channel VCA controls ............................................. 80

16.5.3. Contact controls ................................................................................. 81

17. BLOCK DIAGRAM ........................................................................................... 82

18. LEVEL DIAGRAMS

18.1. Analog Input/Output ....................................................................................... 84

18.2. Digital Input/Output ........................................................................................ 84

19. PARAMETER SETTING ITEMS AND SETTING RANGES ................ 85

20. SPECIFICATIONS

20.1. D-901 Digital Mixer ........................................................................................ 89

20.2. D-921F Microphone/Line Input Module (Optional) ......................................... 90

20.3. D-921E Microphone/Line Input Module (Optional) ......................................... 90

20.4. D-922F Microphone/Line Input Module (Optional) ......................................... 90

20.5. D-922E Microphone/Line Input Module (Optional) ......................................... 91

20.6. D-936R Stereo Input Module (Optional) ........................................................ 91

20.7. D-923AE Digital Input Module (Optional) ....................................................... 91

20.8. D-937SP Digital Input Module (Optional) ....................................................... 91

20.9. D-971M Line Output Module (Optional) ......................................................... 92

20.10. D-971E Line Output Module (Optional) .......................................................... 92

20.11. D-971R Line Output Module (Optional) ......................................................... 92

20.12. D-972AE Digital Output Module (Optional) .................................................... 92

20.13. D-961SP Digital Output Module (Optional) .................................................... 93

20.14. D-981 Remote Control Module (Optional) ..................................................... 93

20.15. D-983 Remote Control Module (Optional) ..................................................... 94

20.16. D-984VC VCA Control Module (Optional) ...................................................... 94

When Installing the Unit

• Do not expose the unit to rain or an environment where it may be splashed by water or other liquids, as doing so may result in fire or electric shock.

• Use the unit only with the voltage specified on the unit. Using a voltage higher than that which is specified may result in fire or electric shock.

• Do not cut, kink, otherwise damage nor modify the power supply cord. In addition, avoid using the power cord in close proximity to heaters, and never place heavy objects -- including the unit itself -- on the power cord, as doing so may result in fire or electric shock.

When the Unit is in Use

• Should the following irregularity be found during use, immediately switch off the power, disconnect the power supply plug from the AC outlet and contact your nearest TOA dealer. Make no further attempt to operate the unit in this condition as this may cause fire or electric shock.

· If you detect smoke or a strange smell coming

from the unit.

· If water or any metallic object gets into the unit

· If the unit falls, or the unit case breaks

· If the power supply cord is damaged (exposure of

the core, disconnection, etc.)

· If it is malfunctioning (no tone sounds.)

• To prevent a fire or electric shock, never open nor remove the unit case as there are high voltage components inside the unit. Refer all servicing to your nearest TOA dealer.

• Do not place cups, bowls, or other containers of liquid or metallic objects on top of the unit. If they accidentally spill into the unit, this may cause a fire or electric shock.

When Installing the Unit

• Never plug in nor remove the power supply plug with wet hands, as doing so may cause electric shock.

• When unplugging the power supply cord, be sure to grasp the power supply plug; never pull on the cord itself. Operating the unit with a damaged power supply cord may cause a fire or electric shock.

• Do not block the fan exhaust vent on the unit's rear and the ventilation slots on the bottom. Doing so may cause heat to build up inside the unit and result in fire.

• Avoid installing the unit in humid or dusty locations, in locations exposed to the direct sunlight, near the heaters, or in locations generating sooty smoke or steam as doing otherwise may result in fire or electric shock.

• When installing the unit in an equipment rack, observe the following instructions. Failure to do so may result in fire or personal injury.

· Install the rack on a solid and stable surface.

Then, secure it with anchor bolts or make other appropriate arrangements to prevent it from falling down or moving.

· Use the screws supplied with the unit to mount on

TOA's rack.

· The AC outlet to which the unit's AC power cable

is connected must have allowable current capacity over the unit's current consumption.

When the Unit is in Use

• Switch off the power, and unplug the power supply plug from the AC outlet for safety purposes when cleaning or leaving the unit unused for 10 days or more. Doing otherwise may cause a fire or electric shock.

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.

Safety Symbol and Message Conventions

Safety symbols and messages described below are used in this manual to prevent bodily injury and property damage which could result from mishandling. Before operating your product, read this manual first and understand the safety symbols and messages so you are thoroughly aware of the potential safety hazards.

WARNING

Indicates a potentially hazardous situation which, if mishandled, could result in death or serious personal injury.

Indicates a potentially hazardous situation which, if mishandled, could result in moderate or minor personal injury, and/or property damage.

WARNING

CAUTION

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.

* Can also be set at a PC using the setting software, which can be downloaded from our website

"http://www.toa-products.com/international/".

3. FEATURES

• Acoustic feedback can be suppressed through simple operation.

• Auto-Mixing functions (Ducker*

and NOM Attenuation*2) automatically adjust the input signal volume.

• Signals are digitally processed, ensuring high-accuracy sound parameter settings.

• All settings can be performed at the unit using the LCD screen and setting keys and knobs located on the front panel. The settings can also be made at a PC using the dedicated software.

• Modular construction permits flexible configuration of inputs and outputs, from 2-IN/4-OUT to 12-IN/8-OUT systems.

• Up to 16 preset patterns can be stored in memory, which can be easily recalled from either the unit or connected external equipment.

• An RS-232C port permits remote control of the unit using an AMX or Crestron controller, or similar external equipment. The control protocol is available for download at our website http://www.toaproducts.com/international/.

• A protect function prevents accidental changes of front panel key settings.

• The use of an optional D-981 or D-983 Remote Control Module, or an optional D-984VC VCA Control Module permits easy remote operation of volume control and preset memory recall.

• The use of an optional D-984VC VCA Control Module permits the sound volume to be adjusted from remote locations using the faders or volume controls.

Automatically adjusts all channel gains in response to input signal level. (Refer to p. 38.)

*2Automatically adjusts the input gain of open microphones corresponding to the number of open

microphones in the system. (Refer to p. 39.)

Notes

• AMX is a trademark of AMX Corporation.

• Crestron is a trademark of Crestron Electronics, Inc.

4. HANDLING PRECAUTIONS

• Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense.

• Use the unit in locations where the temperature is between +5 to +40 °C (no condensation) and the humidity is less than 90%.

• The D-901 is a precision audio component. To prevent failure, avoid locations where the unit may be exposed to strong shocks or vibrations.

• To clean, be sure to first switch off the power, then wipe with a dry cloth. When extremely dirty, use a soft cloth dampened in neutral detergent. Never use benzene, thinner or chemically-treated towels, which may damage the unit's finish.

5. NOMENCLATURE AND FUNCTIONS

5.1. D-901 Digital Mixer

[Front]

1. Power switch [POWER,

ON/ OFF

]

The unit's power switches ON when this switch is pressed, and switches OFF when pressed again.

2. Power Indicator

Lights when the power is switched ON.

Parameter Input Section

3. Utility Indicator

Remains lit during selection of the utility function.

4. Utility Key [UTILITY]

Selects the utility function. Pressing this key displays the utility function setting screen on the LCD screen (5). (Refer to p. 61.)

5. LCD Screen

When the function key is pressed, its corresponding setting screen is displayed on this screen. If the unit's internal cooling fan malfunctions, the "ERROR indication appears on the screen even during setting operation. In this case, contact your TOA dealer.

6. System Lock Indicator [LOCK]

Lights when the protect function is enabled. (For more information on the protect function, refer to

p. 68.) Flashes when the D-901 is communicating with a PC.

7. Setting Knob [CHANGE PARAMETER, PUSHENTER]

This knob can be rotated to change parameters or select setting contents, and also operates as a push switch. Pressing the knob when the [OK?] indication is displayed on the LCD screen (5) enables the corresponding function.

8. Preset Indicator

Remains lit during preset memory selection.

9. Preset Key [PRESET]

Recalls the settings stored in preset memory or saves the current parameters. The preset memory setting screen appears on the LCD (5) when this key is pressed. (Refer to p. 59.)

10. Screen Shift Keys [ ]

Pressing these keys change the setting items on the LCD (5).

11. Function ON/OFF Indicator

Lights when the parameter shown on the LCD (5) is enabled (ON).

12. Function ON/OFF Key [ON]

Parameters displayed on the LCD (5) are enabled (ON) when this key is pressed, and disabled (OFF) when pressed again.

Parameter input section Input channel control section

(described below)

DIGITAL MIXER model D-901

UTILITY

PRESET

ENTRY SECTION

PRESET

LOCK

CHANGE

PARAMETER

PUSH-ENTER

Preset memory selection section Microphone bus control section

(Refer to p. 9.) (Refer to p. 10.)

612

SEL SIG 0N 0N SIG SEL

INPUT OUTPUT

(Refer to p. 9.)

SEL

FBS

EFFECT

MIC BUS

Output channel control section

(Refer to p. 10.)

PEAK

+12dB

+6dB

0dB

-6dB

-12dB

-20dB

-40dB

0N SIG SEL

1 2

POWER

OFF

3 4 5 6 7

UTILITY PARAMETER

LOCK

8 9 10

11 12

CHANGE

ONPRESET

PUSH-ENTER

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).

14. Preset Memory Indicators

The LED corresponding to the currently selected Preset Memory Selection key is illuminated.

Input Channel Control Section

Green: Signal level is between –40 dB and

+17 dB on the basis of the rated input signal level.

OFF: Signal level is lower than –40 dB

below the rated input signal level.

Notes

· The indicator lights red when the signal level is set too high. In such cases, decrease the output level of connected equipment so that the indicator lights green.

· Only when the D-923AE or the D-937SP Digital input module is used, the input channel indicator flashes red if a status error occurs.

• ON: Lights when the channel is selected and active.

17. Input Volume Control [INPUT]

Adjusts the gain of the input channel selected with the Input Channel Selector keys (15).

18. Input Channel ON/OFF Key [ON]

Enables or disables the channel selected with the Input Channel Selector keys (15).

19. Input Channel ON/OFF Indicator

Lights continuously to indicate that the input channel selected with the Input Channel Selector keys (15) is enabled (ON).

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.

16. Input Channel Indicators [SEL, SIG, ON]

• SEL: Lights when the input channel is selected.

• SIG

Indicates the input signal level in two colors (red and green). The status of indicator shows as follows depending on the input signal levels.

Red: Signal level is 17 dB or more above

the rated input signal level.

PRESET

612

SEL SIG 0N 0N SIG SEL

LED

Red

Green

Input signal level

+17 dB

–40 dB

Rated input signal level

INPUT

16 18 1917

OFF

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.

22. Feedback Suppression Indicator [FBS]

Remains lit while the feedback suppression function is enabled.

23. Effect Key [EFFECT]

The effect (echo) function is enabled when this key is pressed, and the effect (echo) parameters are displayed on the LCD screen, allowing settings to be changed. Pressing the key again disables the effect (echo) function. (Refer to p.

55.)

24. Effect Indicator

Remains lit while the effect (echo) function is enabled.

Output Channel Control Section

Note

The indicator lights red when the signal level is set too high. In such cases, attenuate the unit's output level so that the indicator lights green.

• SEL: Lights when the output channel is

selected.

27. Output Volume Control [OUTPUT]

Adjusts the gain of the output channel selected with the Output Channel Selector keys (28).

28. Output Channel Selector Keys [1 – 8]

Used to select the output channel for sound volume adjustment, parameter setting or Level meter indication (25). The Output Channel indicator [SEL] (26) lights when the key is pressed, permitting parameter setting, volume adjustment with the Output volume control (27) or Level meter (25) signal level indication.

29. Output Channel ON/OFF Key [ON]

Enables or disables the channel selected with the Output Channel Selector keys (28).

30. Output Channel ON/OFF Indicator

Lights continuously to indicate that the output channel selected with the Output Channel Selector keys (28) is enabled (ON).

25. Output Signal Level Meter

Indicates the signal level of the channel selected with the Output Channel Selector keys (28).

26. Output Channel Indicators [ON, SIG, SEL]

• ON: Lights when the channel is active.

• SIG

Indicates the output signal level in two colors (red and green). The status of indicator shows as follows depending on the output signal levels.

Red: Signal level is 17 dB or more above

the rated output signal level.

Green: Signal level is between –40 dB and

+17 dB on the basis of the rated output signal level.

OFF: Signal level is lower than –40 dB

below the rated output signal level.

20. Microphone Bus Selector Key [SEL]

Used to set the microphone bus parameters or adjust the volume. Pressing this key causes the

SEL

20 21

FBS

EFFECT

MIC BUS

PEAK

+12dB

+6dB

0dB

-6dB

-12dB

-20dB

-40dB

0N SIG SEL

LED

Red

Green

OFF

Output signal level

+17 dB

–40 dB

Rated output signal level

OUTPUT

29 30

[Rear]

31. Cooling Fan

32. RS-232C Communication Port

A communications connector for a personal computer (PC) or other control equipment.

33. Control Module Slot

The control module's dedicated slot.

34. Output Module Slot

Slot for output channels 5 – 8.

35. Output Module Slot

Slot for output channels 1 – 4.

36. Input/Output Module Slot

Slot for input channels 11 and 12. Inserting an output module here provides output signals for channels 5 – 8.

37.Input/Output Module Slot

Slot for input channels 9 and 10. Inserting an output module here provides output signals for channels 1 – 4.

38. Input Module Slot

Slot for input channels 7 and 8.

39. Input Module Slot

Slot for input channels 5 and 6.

40. Input Module Slot

Slot for input channels 3 and 4.

41. Input Module Slot

Slot for input channels 1 and 2.

42. AC Inlet

Connect this inlet to the wall AC outlet using the supplied power cord.

Note

Slots 5 – 8 accommodate only two D-971M and/or D- 971E Line Output Modules together or independently in total.

CAUTION

Do not block the fan exhaust vent. Doing so may cause heat to build up inside the unit and result in fire.

31 32 33 34 35 36 37 38 39 40

RS-232C

DIGITAL MIXER

SIGNAL

model D-901

TOA Corporation

MADE IN JAPAN

GND

Slot 9 Slot 8 Slot 7 Slot 6 Slot 5 Slot 4 Slot 3 Slot 2 Slot 1

Control module slot

Outputs 5 – 8

Output module slot

Outputs 1 – 4

Inputs 11 & 12 or Outputs 5 – 8

Inputs 9 & 10 or Outputs 1 – 4

Input & output module slot

Inputs 7 & 8

Input module slot

Inputs 5 & 6

Inputs 3 & 4

Inputs 1 & 2

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.

• Two silver slotted screws at the top and bottom of the front panel are handles used for module detachment.

Never rotate them because they do not function as screws.

5.2.1. D-921F Microphone/Line Input Module

43. 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. Input sensitivity (–50/– 36/–10/+4 dB) and phantom power (+15 V) ON/OFF can be set by way of the front panel setting screen.

44. Ground Lift Switch [GND LIFT/NORMAL]

Hum noise may be generated due to ground loops created when the unit is connected to other equipment. Setting the switch to the GND LIFT position cuts the ground loop.

5.2.2. D-921E Microphone/Line Input Module

45. Monaural Input Terminal [1, 2]

Electronically-balanced, removable terminal block. (H: Hot; C: Cold; E: Ground) Input sensitivity (–50/–36/–10/+4 dB) and phantom power (+15 V) ON/OFF can be set by way the front panel setting screen.

46. Ground Lift Switch [GND LIFT/NORMAL]

Hum noise may be generated due to ground loops created when the unit is connected to other equipment. Setting the switch to the GND LIFT position cuts the ground loop.

Note

Be sure to use the supplied removable terminal plugs (3P) for connection.

MIC/LINE INPUT MODULE

GND LIFT

Handle

MIC/LINE INPUT MODULE [–50 / –36 / –10 / +4 dB] model D-921F

GND LIFT

NORMAL

GND LIFT

NORMAL

1 2 3

ACCESSORY I.T.E 78CK

: E : H : C

MIC/LINE INPUT MODULE [–50 / –36 / –10 / +4 dB] model D-921E

GND LIFT

NORMAL

GND LIFT

NORMAL

ACCESSORY I.T.E 78CK

2: Hot

3: Cold

1: Ground

5.2.4. D-922E Microphone/Line Input Module

49. Monaural Input Terminal [1, 2]

Electronically-balanced, removable terminal block. (H: Hot; C: Cold; E: Ground)

Note

Be sure to use the supplied removable terminal plugs (3P) for connection.

50. Input Sensitivity Switch [PHANTOM, GND LIFT, MIC/LINE]

4-pole switch. Enables phantom power (+15V; ON/OFF, enabled only when set to the MIC position), ground lift and input sensitivity. Input sensitivity: –36 or –50 dB (MIC mode) / –10 or +4 dB (LINE mode)

5.2.5. D-936R Stereo Input Module

51. Stereo Input Terminal [1L/1R, 2L/2R, 3L/3R, 4L/4R]

Unbalanced, RCA pin jack stereo input terminals. Either a single stereo input can be selected from the 4 available stereo inputs or all 4 stereo channels can be mixed. Mode setting and stereo selection are performed at the front panel setting screen. They can also be remotely selected by way of connected external equipment through the use of the control module. Input signal level: –10 dB

5.2.3. D-922F Microphone/Line Input Module

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.

48. Input Sensitivity Switch [PHANTOM, GND LIFT, MIC/LINE]

4-pole switch. Enables phantom power (+15 V; ON/OFF, enabled only when set to the MIC position), ground lift and input sensitivity. Input sensitivity: –36 or –50 dB (MIC mode) / –10 or +4 dB (LINE mode)

MIC/LINE INPUT MODULE model D-922F

NORMAL

MIC

-10dB(LINE)

-50dB(MIC)

OFF : PHANTOM LIFT : GND LINE

+4dB(LINE)

-36dB(MIC)

OFF : PHANTOM

LIFT : GND

NORMAL

MIC

-10dB(LINE)

-50dB(MIC)

LINE

+4dB(LINE)

-36dB(MIC)

1 2 3

ACCESSORY I.T.E 78CK

: E : H : C

MIC/LINE INPUT MODULE model D-922E

NORMAL

MIC

-10dB(LINE)

-50dB(MIC)

NORMAL

MIC

-10dB(LINE)

-50dB(MIC)

ACCESSORY I.T.E 78CK

CH1

OFF : PHANTOM LIFT : GND LINE

+4dB(LINE)

-36dB(MIC)

OFF : PHANTOM LIFT : GND LINE

+4dB(LINE)

-36dB(MIC)

NORMAL

MIC

NORMAL

MIC

OFF : PHANTOM LIFT : GND LINE

-10dB(LINE)

-50dB(MIC)

OFF : PHANTOM LIFT : GND LINE

-10dB(LINE)

-50dB(MIC)

2: Hot

3: Cold

1: Ground

+4dB(LINE)

-36dB(MIC)

+4dB(LINE)

-36dB(MIC)

1R2R1L

3L3R

4L4R

model D-936RSTEREO SELECT INPUT MODULE [ –10 dB]

ACCESSORY I.T.E 78CK

5.2.9. D-971E Line Output Module

56. Monaural Output Terminal [1, 2, 3, 4]

Electronically-balanced, removable terminal block. (H: Hot; C: Cold; E: Ground.) Output signal level: +4 dB

Note

Be sure to use the supplied removable terminal plugs (3P) for connection.

5.2.7. D-937SP Digital Input Module

53. Optical Input Terminal [OPTICAL, 1,2]

Optical input terminal of S/PDIF format.

54. Coaxial Input Terminal [COAXIAL 3, 4]

Coaxial input terminal of S/PDIF format.

Notes

• Use a coaxial cable with characteristic impedance of 75 Ω for connection.

• One of four line inputs (stereo) is selected. Input selection is performed at the front panelmounted setting screen.

5.2.8. D-971M Line Output Module

55. Monaural Output Terminal [1, 2, 3, 4] (XLR-332 equivalent)

Electronically-balanced output terminal. (Pin 1: Ground; Pin 2: Hot; Pin 3: Cold)

Output signal level: +4dB Use XLR-3-11C or equivalent for connection.

5.2.6. D-923AE Digital Input Module

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)

Use the XLR-3-12C or its equivalent for connection.

Note

Use a digital audio cable with characteristic impedance of 110 Ω for connection.

DIGITAL IN

LINE OUTPUT MODULE

[+4 dB]

1/2

AES/EBU

model D-923AEDIGITAL INPUT MODULE

2: Signal

3: Signal

1: Ground

DIGITAL IN

OPTICAL

model D-971M

: E : H

: C

ACCESSORY I.T.E 78CK

2: Hot

3: Cold

1: Ground

LINE OUTPUT MODULE [+4 dB]

model D-971E

model D-937SPDIGITAL INPUT MODULE

COAXIAL

ACCESSORY I.T.E 78CK

5.2.10. D-971R Line Output Module

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. D-972AE Digital Output Module

58. AES/EBU Digital Output Terminal [AES/EBU, 1/2] (XLR-3-32 or its equivalent)

Digital output terminal of AES/EBU format. (Pin 1: Ground; Pin 2: Signal; Pin 3: Signal)

Use the XLR-3-11C or its equivalent for connection.

Note

Use the digital audio cable with characteristic impedance of 110 Ω for connection.

5.2.12. D-961SP Digital Output Module

59. Optical Output Terminal [OPTICAL 1, 2]

Optical output terminal of S/PDIF format.

60. Coaxial Output Terminal [COAXIAL 1, 2]

Coaxial input/output terminal of S/PDIF format.

Note

Use a coaxial cable with characteristic impedance of 75 Ω for connection. Each pair of the S/PDIF optical output and the coaxial RCA pin jack output delivers output in parallel.

5.2.13. D-981 Remote Control Module

61. Contact Input Terminal [INPUT, C, 1, 2, 3, 4, 5, 6, 7, 8, C]

Removable terminal block, 8-circuit contact input terminal. Individual contact functions are assigned on the front panel setting screen.

Note

Be sure to use the supplied removable terminal plugs (10P) for connection.

62. Contact Output Terminal [OUTPUT, C, 1, 2, 3, 4, 5, 6, 7, 8, C]

Removable terminal block, 8-circuit contact output terminal. Individual contact functions are assigned on the front panel setting screen.

DIGITAL OUT

OPTICAL

2(R) 1(L)

4(R) 3(L)

model D-971RLINE OUTPUT MODULE [–10 dB]

ACCESSORY I.T.E 78CK

DIGITAL OUT

COAXIAL

OPTICAL

COAXIAL

model D-961SPDIGITAL OUTPUT MODULE

1/2

AES/EBU

model D-972AEDIGITAL OUTPUT MODULE

3/4

AES/EBU

1: Ground

3: Signal

2: Signal

REMOTE CONTROL MODULE model D-981

INPUT

OUTPUT

ACCESSORY I.T.E 78CK

5.2.14. D-983 Remote Control Module

63. Contact Input Terminal [CTRL IN, 1-6, 7-12, 13-18, 19-24]

Six-circuit RJ45 contact input terminals. Assign functions to each contact on the front panel-mounted setting screen.

64. Contact Output Terminal [CTRL OUT,1-4, 5-8, 9-2, 13-16]

Four-circuit RJ45 contact output terminals. Assign functions to each contact on the front panel-mounted setting screen.

5.2.15. D-984VC VCA Control Module

65. Input channel VCA Terminal [IN CH, 1-6, 7-12]

RJ45 VCA terminals. These RJ45 VCA terminals correspond to 12 input channels.

66. Output Channel VCA Terminal [OUT CH, 1-4, 5-8]

RJ45 VCA terminals. These RJ45 VCA terminals correspond to 8 output channels.

67. Control Input Terminal [CTRL IN, 1-4, 5-8]

RJ45 Control Input terminals. These RJ45 Control Input terminals correspond to 8 control inputs.

68. Control Output Terminal [CTRL OUT, 1-4, 5-8]

RJ45 Control output terminals. These RJ45 Control output terminals correspond to 8 control outputs.

CTRL OUT CTRL IN

1-4

1-6

5-8

7-12

CONTROL UNITS FOR D-901 ONLY

Pin No.

1 2 3 4 5 6 7 8

1-6 IN 1 IN 2 IN 3 IN 6 IN 5 IN 4

C C

CTRL IN

7-12 IN 7 IN 8

IN 9 IN 12 IN 11 IN 10

C C

13-18 IN 13 IN 14 IN 15 IN 18 IN 17 IN 16

C C

19-24 IN 19 IN 20 IN 21 IN 24 IN 23 IN 22

C C

9-12

13-18

13-16

19-24

model D-983REMOTE CONTROL MODULE

VCA

CTRL IN IN CH

1-4

1-6

5-8

7-12

1-4

model D-984VCVCA CONTROL MODULE

5-8

CTRL OUT OUT CH

CONTROL UNITS FOR D-901 ONLY

Pin No.

1 2 3 4 5 6 7 8

Pin No.

1 2 3 4 5 6 7 8

Pin No.

1 2 3 4 5 6 7 8

1-4

OUT 1

C 1

OUT 2

C 3

OUT 3

C 2

OUT 4

C 4

IN CH 1 IN CH 2 IN CH 3 IN CH 6 IN CH 5 IN CH 4

OUT CH 1 OUT CH 2 OUT CH 3

OUT CH 4

OUT 5

OUT 6

OUT 7

OUT 8

1-6

V C

1-4

C V

V C

CTRL OUT

5-8

OUT 9

C 5

OUT 10

C 7

OUT 11

C 6

OUT 12

C 8

IN CH

OUT CH

9-12

C 9

C 11

C 10

C 12

7-12 IN CH 7 IN CH 8 IN CH 9

IN CH 12 IN CH 11 IN CH 10

5-8 OUT CH 5 OUT CH 6 OUT CH 7

OUT CH 8

13-16

OUT 13

C 13

OUT 14

C 15

OUT 15

C 14

OUT 16

C 16

V C

C V

V C

Pin No.

1 2 3 4 5 6 7 8

Pin No.

1 2 3 4 5 6 7 8

1-4

CTRL IN 1

CTRL IN 2

CTRL IN 3

CTRL IN 4

CTRL OUT

1-4

CTRL OUT 1

C 1

CTRL OUT 2

C 3

CTRL OUT 3

C 2

CTRL OUT 4

C 4

CTRL IN

5-8 CTRL IN 5

CTRL IN 6

CTRL IN 7

CTRL IN 8

5-8

CTRL OUT 5

C 5

CTRL OUT 6

C 7

CTRL OUT 7

C 6

CTRL OUT 8

C 8

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. Set which input channel signal is transmitted to which output channel.

Because the factory default setting is made so that each input (1 – 12) is assigned to all outputs (1 – 8) via the Microphone Bus*, when a microphone, or CD player or other music player is connected to an input, its signals are output from all output terminals by simply increasing the corresponding input channel gain. Make input-to-output re-assignment according to scenes of use. * Refer to p. 82, Block Diagram. (Refer to p. 41, Bus assignment settings.) This setting can be performed in either of two ways: On the setting screen display or by way of the front-mounted keys.

When the D-921E or D-921F is installed, perform this setting by displaying the setting screen. (Refer to p. 26, PAD Settings.) When the D-922E or D-922F is installed, perform this setting using its DIP switch. (Refer to p. 12 – 13.) Set the sensitivity so that the front-mounted Input channel indicator [SIG] does not light red.

(Refer to p. 25, Input/Output Gain Settings.) This setting can be performed in any of three ways: On the setting screen display (two methods) or by way of the front-mounted keys. Note: When using the D-984VC VCA Control Module, perform gain settings as well for the input

channel to be remotely controlled.

(Refer to p. 18, Setting Flowcharts.) Refer to the setting flowcharts for the appropriate setting method for the function to be used.

When using Stereo Link, Grouping and Crossover functions, first perform the required settings on the Utility setting screen.

Step 2. Set the input sensitivity.

Step 3. Set the input channel gain.

Step 4. Set the output channel gain.

Step 5. Set individual functions as required.

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. Setting Flowcharts

All the functions described hereinafter can also be set at a PC using the dedicated software. Please access our website "http://www.toa-products.com/international/" for its download.

In the following charts, the Screen shift keys [ ] are used to move vertically (next screen display) and the shift keys [ ] to move horizontally between the solid line setting screen boxes ( ) . For movements within the dotted line setting screen boxes ( ) and parameter settings for each setting screen, refer to the corresponding pages.

6.2.1. Input and output settings

(Only when using the D-921E or D-921F Microphone/Line Input Module)

Phantom power ON/OFF Settings (Only when the PAD is set to "MIC.")

PAD (Input Sensitivity) Settings

(Only when using the D-936R Stereo Input Module)

Line Input Mode Selection (p. 26)

Line (Stereo) Input Selection

Input 1 Gain Settings Input Trim Gain Settings

(p. 26)

(p. 28)

(Only when using the D-923AE Digital Input Module)

Input signal status verification

(Only when using the D-937SP Digital Input Module)

Input signal status verification

Line (Stereo) Input Selection

Channel Status Verification (p. 27)

Sampling frequency verification

Pre-emphasis verification

Channel Status Verification (p. 27)

Sampling frequency verification

Pre-emphasis verification

(p. 28)

Input trim settings (p. 28)

Input trim polarity settings

High-pass filter settings (p. 29)

Cutoff Frequency Settings

Equalizer settings (p. 30)

Gain Settings (low frequency)

Gain Settings (high frequency)

(To next page) (To next page)

1 2

Q settings

Center frequency settings

Q settings

Center frequency settings

Q settings

1 2

(From the previous page) (From the previous page)

Compressor/Auto-Leveler Mode Selection

(p. 31)

(Compressor mode)

Compressor settings (p. 31)

Threshold Level Settings

Ratio settings

Attack time settings

Release time settings

Makeup gain settings

Attack Time Settings

Threshold Level Settings

(Auto-leveler mode)

Auto-leveler settings (p. 33)

Target Level Settings

Maximum gain settings

Attack time settings

Release time settings

Level sense settings (p. 34)

Release time settings

Gate settings (p. 35)

Hysteresis settings

Depth settings

Hold time settings

Attack time settings

Release time settings

Auto-Mixing Group Settings

(p. 37)

Ducker settings (p. 38)

Priority Settings

NOM Attenuation ON/OFF Settings

(p. 39)

Input Channel Gain Settings

(p. 40)

Input Channel Group Trim Gain Settings

Bus Assignment Settings

(p. 40)

Bus assignment and crosspoint gain settings (p. 41)

Attenuation settings

Attack time settings

Release time settings

(Only when Group is set)

Crosspoint gain settings

(To next page)

* The number of filters to be displayed differs depending on crossover configuration settings. (Refer to p. 62.)

(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

Slope Settings (High Frequency)

Slope Settings (Low Frequency)

(p. 42)

Crossover settings (Only when Crossover function is enabled) (p. 43)

Filter settings (p. 45)

(Only when Group is set)

Cutoff frequency settings

Q settings

Q2 settings

Crossover gain settings

Crossover filter polarity settings

Same items as for high frequency

Filter 1 Settings (Type Selection)

Filter 6* Settings (Type Selection)

Compressor settings (p. 50)

Threshold Level Settings

Delay Time Settings

(p. 51)

Parametric equalizer

High-pass filter (6 dB/12 dB)

Low-pass filter (6 dB/12 dB)

High shelving filter

Low shelving filter

Horn equalizer

Notch filter

All-pass filter

Same items as for Filter 1

Ratio settings

Attack time settings

Release time settings

Makeup gain settings

Output 8 Gain Settings

Same items as for Output 1

6.2.2. Microphone bus settings

6.2.3. Preset memory settings

Microphone bus selector key

SEL

Feedback suppression settings (p. 52)

Effect key

EFFECT

Dynamic Mode Settings

Mode Confirmation (Filter 1 settings)

Mode Confirmation (Filter 12 settings)

Echo Gain Settings

Auto mode activation

Filter number settings

Dynamic mode filter initialization

Auto mode filter initialization

Feedback suppression filter setting confirmation (p. 54)

Frequency confirmation

Filter gain confirmation

Q confirmation

Same items as for Filter 1

Effect (echo) settings (p. 55)

Feedback ratio settings

Feedback delay settings

Initial echo (pre-) delay settings

Low-pass filter frequency settings

Low-pass filter Q settings

Bus Assignment Settings

Preset key

PRESET

Preset Memory Save

Preset Memory Recall

Preset Memory Delete

Preset Memory Crossfade Time Settings

Initial Preset Memory Selection

Bus assignment and crosspoint gain settings (p. 56)

Crosspoint gain settings

(p. 57)

(p. 58)

(p. 59)

(p. 60)

Configuration Save

(p. 60)

6.2.4. Utility settings

Utility key

UTILITY

Stereo Link Settings

Group Settings

Crossover Configuration Settings

NOM Attenuation Settings

Input Contact Number Selection

Output Contact Number Selection

(p. 61)

(p. 62)

(p. 64)

Contact input/output settings (p. 65) (Only when using the D-981 or D-983 Remote Control Module, or D-984VC VCA Control Module)

Preset memory recall

Volume UP

Volume DOWN

Channel ON/OFF

Line (stereo) input selection

Normal make/break

Preset memory recall tally

Channel ON/OFF tally

Contact input status tally

Line (stereo) input selection tally

Protect Settings

Control Mode Selection

All Input/Output Channel Gain Confirmation

All Input/Output VCA Status Confirmation

Individual Slots Confirmation

Cooling Fan Operating Status Confirmation

(p. 68)

RS-232C port settings (p. 70)

(p. 71)

(Only when using the D-984VC VCA Control Module)

(p. 71)

Module type confirmation (p. 72)

(p. 73)

Operation key protection ON/OFF

RS-232C transmission rate settings

Gain confirmation for all 12 input channels

Gain confirmation for all 8 output channels

VCA status confirmation for all 12 input channels

VCA status confirmation for all 8 output channels

All slots confirmation

Firmware Version Confirmation

(p. 73)

6.3. Setting Keys and Knob

Screen shift keys

Parameter input section

DIGITAL MIXER model D-901

Utility key

Preset key

UTILITY

PRESET

LOCK

ENTRY SECTION

PRESET

Preset memory selection section

Input channel

control section

612

SEL SIG 0N 0N SIG

SEL

Microphone bus

control section

SEL

FBS

CHANGE

PARAMETER

Setting knob

PUSH-ENTER

Function ON/OFF key

Preset memory selector keys

Output channel

control section

PEAK

+12dB

+6dB

0dB

-6dB

-12dB

-20dB

-40dB

0N SIG SEL

Input channel selector keys

Input volume control

Input channel ON/OFF key

INPUT OUTPUT

Microphone bus selector key

EFFECT

MIC BUS

Effect key

Output volume control

Output channel selector keys

Output channel ON/OFF key

6.4. Setting Screen Displays

[Input/Output Gain Setting Screen Example]

[Equalizer 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 gain of the input channel is displayed. In this example, the gain of Input channel 1 is displayed. Setting values can be changed using the Input volume control.

The channel selected with the Input channel selector key is displayed.

The channel selected with the Output channel selector key is displayed.

IN 1] [OUT1]

– INFdB 0.0dB

The gain of the output channel is displayed. In this example, the gain of Output channel 1 is displayed. Setting values can be changed using the Output volume control.

The channel number for which settings are to be changed is displayed.

[IN 1] PEQ-H

GAIN +0.0d

Setting items are displayed. In this example, the PEQ-H (high frequency equalizer) gain is being set. To change the frequency or Q of PEQ-H, press the shift key. The setting item display changes to FREQ and Q each time the shift key is pressed.

The object currently being set is displayed.

Displayed when the previous screen exists. In this case, the PEQ-L (low frequency equalizer) setting screen appears when the shift key is pressed.

Parameters and selection contents can be changed with the Setting knob. In this example, the equalizer gain can be changed.

Displayed when the next screen exists. In this case, the COMPMODE (compressor/auto-leveler) setting screen appears when the shift key is pressed.

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.

Step 2. Rotate the Input (or Output) volume control

to set the gain.

Input/output gain setting range: –INF (–∞) to +10 dB

7.2. Input/Output Gain Setting Screen Operation

Step 1. Press the desired Input (or Output) channel

selector key.

Step 2. Using the Screen shift key, display the input

(or output) gain setting screen.

Step 3. Rotate the Setting knob to set the gain.

7.3. Input/Output Channel Gain Setting Screen Operation

Perform the "Input Channel Gain Settings" (p. 40) and "Output Channel Gain Settings" (p. 42).

(Example: Input channel 1 gain setting)

IN 1] [OUT1]

– INFdB 0 .0d

612

SEL SIG 0N 0N SIG SEL

INPUT OUTPUT

SEL

FBS

EFFECT

MIC BUS

CHANGE

PARAMETER

PUSH-ENTER

PEAK

+12dB

+6dB

0dB

-6dB

-12dB

-20dB

-40dB

0N SIG SEL

Input channel 1 gain setting

IN12] [OUT1]

– INFdB 0 .0d

[IN 1] OUT1]

– INFdB 0.0d

[IN 1] OUT8]

– INFdB 0.0d

CHANGE

PARAMETER

Input channel 12

PUSH-ENTER

PARAMETER

PUSH-ENTER

PARAMETER

gain setting

CHANGE

Output channel 1 gain setting

CHANGE

Output channel 8

PUSH-ENTER

gain setting

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)

• Can be displayed and set only when MIC is selected on the PAD setting screen (explained in the next section).

• Enable or disable phantom power using the function ON/OFF key.

Note

Signals are muted for a specified period of time while changing settings.

• Pressing the Input channel selector key for the channel in which the D-921E or D-921F module is installed permits phantom power setting 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.

8.2. PAD (Input Sensitivity) Settings (Only with D-921E or D-921F module)

• Rotate the Setting knob to set the PAD (input sensitivity). Parameter setting range: MIC: –50 or –36 dB

LINE: –10 or +4dB

Note

Signals are muted for a specified period of time while changing settings.

• Pressing the Input channel selector key for the channel in which the D-921E or D-921F module is installed permits PAD selection 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.

8.3. Line Input Mode Selection (Only with D-936R module)

• Rotate the Setting knob to select the D-936R Stereo Input Module operation mode.

• Either a single stereo input can be selected from among the 4 available stereo inputs (SELECT mode) or all 4 stereo channels can be mixed (MIX ALL mode). Also, in MIX ALL mode, stereo sources can be selected with the input selection screen. (Refer to p. 28.)

Note

Signals are muted for a specified period of time while changing settings.

• The setting screen reverts to the Input/Output Gain Setting screen when the shift key is pressed.

(Only when the PAD is set to "MIC.")

[ IN 1 ] PHANTOM

OFF

[IN 1] PAD

LINE +4d

Input trim gain settings (p. 28)

CHANGE

PARAMETER

PUSH-ENTER

[IN 1] LINE IN

MIX AL

Line (stereo) input selection (p. 28)

CHANGE

PARAMETER

PUSH-ENTER

8.4. Channel Status Verification (Only with D-923AE or D-937SP module)

• Input signal status of each channel can be verified.

8.4.1. Input signal status verification

• Sampling frequencies can be verified. Display example: 32 kHz, 44.1 kHz, 48 kHz, 88.2 kHz, 96 kHz

• The indication of [– – –] is displayed when it is impossible to recognize.

• Sampling rate converter (SRC) is always ON.

8.4.2. Sampling frequency verification

• The setting screen reverts to the Input/Output Gain Setting screen when the shift key is pressed.

• The "DETECT" indication is displayed when pre-emphasis is detected, automatically turning on the de-emphasis.

8.4.3. Pre-emphasis verification

Display Input signal status LOCK Normal UNLOCK No cable connected or equipment power not

turned on Non AUDIO Not an audio signal Non PCM Not PCM data DTS CD DTS CD

Input signal status verification

[IN 1] STATUS

C K

Sampling frequency verification

[IN 1] STATUS

Fs 48kHz

Pre-emphasis verification

[IN 1] STATUS

EMPHA S I S NON

Using D-923AE: Input trim settings (next page) Using D-937SP: Line (stereo) input selection (next page)

[ I N 1 ] STATUS

LOC

[ I N 1 ] STATUS

Fs 48kH

[ I N 1 ] STATUS

EMPHA S I S NON

[ I N 1 ] STATUS

EMPHA S I S DET E C

8.5. Line (Stereo) Input Selection (Only with D-936R or D-937SP module)

• Rotate the Setting knob to select the line (stereo) number and press the function ON/OFF key to enable or disable the input. For example, when the [IN 1] indication is displayed, settings are performed for the stereo module inserted into the unit's rearmounted IN1 and 2 slot.

• The "–" indication is displayed when disabled.

• There are two operation modes for the module: MIX ALL and

SELECT modes. (MIX ALL mode is provided with the D-936R only.) MIX ALL mode: Mixes 4 (stereo) line inputs. Any individual stereo

input can also be disabled.

SELECT mode: Selects a single (stereo) line input. Trim settings

can be performed for individual line inputs.

• The setting screen reverts to the Input/Output Gain Setting screen when the shift key is pressed.

8.6. Input Trim Settings

• Rotate the Setting knob to set the input trim gain. Parameter setting range: –15 to +15 dB in 0.1 dB steps

• Pressing an Input channel selector key allows the trim to be adjusted 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.

8.6.1. Input trim gain settings

• Rotate the Setting knob to set the input trim polarity. Parameter setting range: NORMAL, INVERSE

• Pressing an Input channel selector key allows the trim to be adjusted for that channel. The [IN 1] indication changes to the selected channel number indication.

8.5.2. Input trim polarity settings

Using D-936R: Line input mode selection (p. 26) Using D-937SP: Channel status verification (previous page)

[IN 1] LINE SEL

[1] 1 2 3

CHANGE

PARAMETER

PUSH-ENTER

Using D-921F or D-921E: PAD (Input sensitivity) settings (p. 26) Using D-936R or D-937SP: Line (stereo) input selection (previous section) Using D-923AE: Channel status verification (previous page)

Gain Polarity

[IN 1] TRIM

+0.0d

[IN 1] TRIM

POL NORMAL

High-pass filter settings (next page)

CHANGE

[IN 1] TRIM

+0.0d

PARAMETER

PUSH-ENTER

CHANGE

[IN 1] TRIM

POL NORMA

PARAMETER

PUSH-ENTER

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).

8.7.1. Cutoff frequency settings

• Rotate the Setting knob to set the high-pass filter cutoff frequency. Parameter setting range: 20 Hz – 20 kHz in 1/24 octave steps Note: Slope is fixed at 12 dB/oct.

• Pressing an Input channel selector key permits the high-pass filter 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.

8.7.2. Q settings

• Rotate the Setting knob to set the high-pass filter Q. Parameter setting range: 0.500 – 2.563 (51 points)

• Pressing an Input channel selector key permits the high-pass filter to be set for that channel. The [IN 1] indication changes to the selected channel number indication.

[Screen display operations]

Input trim settings (previous page)

Cutoff frequency Q

[IN 1] HPF

FREQ 60H

Equalizer settings (next page)

[IN 1] HPF

Q 0.707

[IN 1] HPF

FREQ 60H

[IN 1] HPF

Q 0.70

CHANGE

PARAMETER

PUSH-ENTER

CHANGE

PARAMETER

PUSH-ENTER

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