Toa DP-K1 Operating Instructions Manual
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Toa DP-K1 Operating Instructions Manual

Toa DP-K1 Operating Instructions Manual

Digital audio processor
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DIGITAL AUDIO PROCESSOR
The various signal processing functions that the DP-K1 can implement are set using the supplied
setting software.
The manual operation at the DP-K1 is only to recall the programmed setting state (preset memory)
and to lock/unlock the knob to prevent accidental wrong operation.
For detailed descriptions of each function and its setting procedure, read the software setting
instruction manual included in the supplied CD.
[Instruction manual configuration]

Operating Instructions

(this book)
Software Setup Manual
(included in the supplied CD)
Note: This book supports the following software versions.
Firmware:
DP-K1 setting software: Version 2.00 or later
Thank you for purchasing TOA's Digital Audio Processor.
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
Describes how to operate, install, and connect the DP-K1.
Describes the details of signal processing functions and
how to set the functions using the setting software, and
update the firmware.
Version 2.00 or later
OPERATING INSTRUCTIONS
DP-K1

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Summary of Contents for Toa DP-K1

  • Page 1: Operating Instructions

    The various signal processing functions that the DP-K1 can implement are set using the supplied setting software. The manual operation at the DP-K1 is only to recall the programmed setting state (preset memory) and to lock/unlock the knob to prevent accidental wrong operation.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. SAFETY PRECAUTIONS 2. GENERAL DESCRIPTION 3. FEATURES 4. HANDLING PRECAUTIONS 5. NOMENCLATURE AND FUNCTIONS 5.1. DP-K1 Digital Audio Processor [Front] ... 6 [Rear] ... 7 5.2. Optional Modules 5.2.1. D-921F 5.2.2. D-921E 5.2.3. D-922F 5.2.4. D-922E 5.2.5.
  • Page 3 13. LEVEL DIAGRAMS 13.1. Analog Input/Output ... 22 13.2. Digital Input/Output ... 22 14. SPECIFICATIONS 14.1. DP-K1 Digital Audio Processor ... 23 14.2. D-921F Microphone/Line Input Module (Optional) ... 24 14.3. D-921E Microphone/Line Input Module (Optional) ... 24 14.4. D-922F Microphone/Line Input Module (Optional) ...

  • Page 4: Safety Precautions

    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.

  • Page 5: General Description

    • Use the unit in locations where the temperature is between +5°C to +40°C (no condensation) and the humidity is less than 90%. • The DP-K1 is a precision audio component. To prevent failure, avoid locations where the unit may be exposed to strong shocks or vibrations.

  • Page 6: Nomenclature And Functions

    The numbers and dots marked around the knob are LED indicators. They indicate the currently recalled memory number or communication state between the DP-K1 and the PC. For details, refer to p. 13 and 14. 3. Input channel indicators Each indicator lights green when an input signal level is –40 dB or higher on the basis of the rated...

  • Page 7: [Rear]

    [Rear] Remote control module slot 6. 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. 7. RS-232C Communication Port The port is solely for the maintenance use. 8.

  • Page 8: Optional Modules

    Input sensitivity (–50/–36/–10/+4 dB) and phantom power (+15 V) ON/OFF can be set by a PC using the setting software supplied with the DP-K1. 2. Ground Lift Switch [GND LIFT/NORMAL] Hum noise may be generated due to ground loops created when the unit is connected to other equipment.

  • Page 9: D-922F Microphone/Line Input Module

    Mode setting and stereo selection are performed by a PC using the setting software supplied with the DP-K1. They can also be remotely selected by way of connected external equipment through the use of the control module.

  • Page 10: D-923Ae Digital Input Module

    • Use a coaxial cable with characteristic impedance of 75 Ω for connection. • One of four line inputs (stereo) is selected. Input selection is performed by a PC using the setting software supplied with the DP-K1. 13. Monaural Output Terminal [1, 2, 3, 4] (XLR-3-32 equivalent) Electronically-balanced output terminal.

  • Page 11: D-971E Line Output Module

    5.2.9. D-971E Line Output Module ACCESSORY I.T.E 78CK 5.2.10. D-971R Line Output Module 2(R) 1(L) 4(R) 3(L) ACCESSORY I.T.E 78CK 5.2.11. D-972AE Digital Output Module DIGITAL OUT AES/EBU AES/EBU 14. Monaural Output Terminal [1, 2, 3, 4] Electronically-balanced, removable terminal block. (H: Hot; C: Cold; E: Ground.) Output signal level: +4 dB Note...

  • Page 12: D-961Sp Digital Output Module

    19. 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 by a PC using the setting software supplied with the DP-K1. Note Be sure to use the supplied removable terminal plugs (10P) for connection.

  • Page 13: Signal Processing Functions

    • The preset knob cannot be used during setting change while the PC is in communication with the DP-K1. 7.2. Locking and Unlocking the Preset Knob You can lock the preset knob to prevent accidental wrong operation.

  • Page 14: Pc Connections

    Connection from the front-mounted terminal Connection from the rear-mounted terminal Network connection terminal* You may connect the DP-K1 to the PC directly by using a cross cable. Depending on the PC settings, however, this direct connection may not be allowed. In such cases, make connections via a switching hub as shown above.

  • Page 15: Repositioning The Network Connection Terminal

    Never do this work with the power cord connected to the outlet, as doing so may cause electric shock. Pocket cover [Inside of the pocket cover] Network connection terminal Main PC board CN701 Network connection terminal Case DP-K1 Screws Ethernet PC board...
  • Page 16 Step 8. Cut the cable tie on the center of the rear-mounted network connection terminal panel. DP-K1 rear Network connection terminal panel Step 9. Remove 2 screws to detach the network connection terminal panel. Note The removed screws are used in Step 13.

  • Page 17: Restoring Factory Default Setting

    Note The supplied rack mounting screws are special screws for the TOA equipment rack. They cannot be used for other racks. Cautions • Install the unit as far as possible away from amplifiers or other equipment that generate heat.

  • Page 18: Connections

    11. CONNECTIONS 11.1. Connection Example DP-K1 Remote controller BGM player (Cassette deck, CD player, MD player, etc.) INPUT OUTPUT Power amplifier Mixer GND LIFT GND LIFT GND LIFT NORMAL NORMAL NORMAL GND LIFT GND LIFT GND LIFT NORMAL NORMAL NORMAL...

  • Page 19: Removable Terminal Plug Connection

    11.2. 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 Connector connections...

  • Page 20: Block Diagram

    12. BLOCK DIAGRAM Microphone/Line Input Module (D-921F or D-921E) +15 V +15 V Microphone/Line Input Module (D-922F or D-922E) +15 V DIP SW +15 V DIP SW Stereo Input Module (D-936R) Digital Input Module (D-923AE) DE-EMP DE-EMP Automatic Digital Input Module (D-937SP) OPTICAL DE-EMP...
  • Page 21 1 2 3 4 5 6 7 8 Gain Filter COMP Gain Filter COMP Gain Filter COMP Gain Filter COMP Gain Filter COMP Gain Filter COMP Gain Filter COMP Gain Filter COMP EtherNet Line Output Module (D-971M or D-971E) SIG LED Delay SIG LED Delay...

  • Page 22: Level Diagrams

    13. LEVEL DIAGRAMS 13.1. Analog Input/Output Microphone/Line Input Module D-921F/921E/922F/922E Stereo Input Module D-936R Max. Input (+24) LINE (+4) LINE (-10) (-36) (-50) 13.2. Digital Input/Output Digital Input Module D-923AE/937SP dBFS Max. Input (0 dBFS) Digital (+24 dB) (+4 dB) SIG LED Turns ON (-36 dB) (0 dB)

  • Page 23: Specifications

    14. SPECIFICATIONS 14.1. DP-K1 Digital Audio Processor Power Source CE version: 230 V AC, 50/60 Hz, CU version: 100 – 120 V AC, 50/60 Hz Power Consumption CE version: 40 W (450 mA), CU version: 40 W (750 mA) Frequency Response 20 –...

  • Page 24: D-921F Microphone/Line Input Module (Optional)

    14.2. D-921F Microphone/Line Input Module (Optional) Input A/D Converter Sampling Frequency Frequency Response Dynamic Range Total Harmonic Distortion Finish Dimensions Weight 14.3. D-921E Microphone/Line Input Module (Optional) Input A/D Converter Sampling Frequency Frequency Response Dynamic Range Total Harmonic Distortion Finish Dimensions Weight •...

  • Page 25: D-922E Microphone/Line Input Module (Optional)

    14.5. D-922E Microphone/Line Input Module (Optional) Input 2 channels, –50/–36/–10/+4 dB* (Selectable with the DIP switch), 4.7 kΩ, electronically-balanced, 3-pin removable terminal block Phantom power supply (+15 V, can be set with the DIP switch) Ground lift switch (can be set with the DIP switch) A/D Converter 20 bits Sampling Frequency...

  • Page 26: D-971M Line Output Module (Optional)

    14.9. D-971M Line Output Module (Optional) Output D/A Converter Sampling Frequency Frequency Response Dynamic Range Total Harmonic Distortion Finish Dimensions Weight 14.10. D-971E Line Output Module (Optional) Output D/A Converter Sampling Frequency Frequency Response Dynamic Range Total Harmonic Distortion Finish Dimensions Weight •...

  • Page 27: D-961Sp Digital Output Module (Optional)

    14.13. D-961SP Digital Output Module (Optional) Output Stereo 2 channels (with splitter, each pair of optical output and coaxial output in parallel), 0.5 V (p-p), 75 Ω, Coaxial RCA jack x 2 Square optical connector x 2 Applicable Format S/PDIF (2 channel multiplexed) Sampling Frequency 48 kHz Finish...

  • Page 28: D-983 Remote Control Module (Optional)

    1 step continuous operation for every 70 ms for no-voltage make of over 100 ms. Can be reset when at break. no-voltage make single pulse of over 100 ms contact capacity: 24 V DC, 100 mA, RJ45 connector x 4 URL: http://www.toa.jp/ 133-22-011-7C...

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