d&b audiotechnik 40D Reference Manual
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d&b audiotechnik 40D Reference Manual

d&b audiotechnik 40D Reference Manual

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40D
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1.3 en

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Summary of Contents for d&b audiotechnik 40D

  • Page 1 Reference manual 1.3 en...
  • Page 2 Refer to: Þ Chapter 8.1 "Power supply" on page 31. General information 40D Reference manual Version: 1.3 en, 02/2024, D2039.EN .01 Copyright © 2024 by d&b audiotechnik GmbH & Co. KG; all rights reserved. Keep this document with the product or in a safe place so that it is available for future reference.
  • Page 3 9. Unplug this apparatus during lightning storms or when unused for long periods of time. d&b 40D Reference manual 1.3 en...

  • Page 4: Table Of Contents

    9.1 Service..................35 9.2 Maintenance and care............35 9.2.1 Touchscreen cleaning............35 9.3 Possible error messages............36 10 Manufacturer's declarations......... 40 10.1 Declaration of Conformity............. 40 10.2 WEEE Declaration (Disposal)..........40 10.3 Licenses and Copyright............40 d&b 40D Reference manual 1.3 en...

  • Page 5: Intended Use

    Intended use Intended use The d&b 40D amplifier is designed for installation purposes and is intended to be used with applicable d&b loudspeakers. A "LINEAR" setup is available allowing the amplifier to be used as a linear installation power amplifier.

  • Page 6: Scope Of Supply

    3-pin South Africa 3-pin Argentina 3-pin Brazil 3-pin India GB 2099 SEV 1011 Afsnit 107-2-D1 SANS 164-1 IRAM 2073 NBR 14136 IS 1293 *Mains plug types and associated standards (Similar illustrations, not in scale) d&b 40D Reference manual 1.3 en...

  • Page 7: Technical Specifications

    NO - Normally Open | NC - Normally Closed 4 x 250 W/4 ohms < –83 dB/0.007 % 1 x 3-pin Phoenix Euroblock male Crosstalk (20 – 20 kHz) < –70 dBr 4 x 250 W into 8/4 Ω d&b 40D Reference manual 1.3 en...
  • Page 8 0.3 msec. - 10 sec. Frequency generator Pink noise or Sine wave 10 Hz – 20 kHz Controls and indicators RESET Recessed push-button (rear panel) TFT color touchscreen 4.3"/480 x 272 pixels 40D enclosure dimensions in mm [inch] d&b 40D Reference manual 1.3 en...
  • Page 9 Duration of max. output 4 ohms 1 x 2400 W 110 ms 8 ohms 1 x 2000 W 2000 ms 4 ohms 4 x 2400 W 5 ms 8 ohms 4 x 2000 W 4 ms d&b 40D Reference manual 1.3 en...

  • Page 10: Current/Power Draw And Thermal Dissipation

    1876 Noise CF 9 dB 13.1 0.98 2600 2000 2047 0.98 1850 1300 1876 Noise CF 6 dB 13.7 0.99 2750 2100 2218 0.98 2000 1400 2047 Sine wave max. 1 s 18.4 18.4 d&b 40D Reference manual 1.3 en...
  • Page 11 Noise CF 9 dB 21.2 0.98 2000 1450 1876 20.8 0.98 1950 1300 2218 Noise CF 6 dB 21.0 0.99 2000 1450 1876 21.1 0.99 2000 1350 2218 Sine wave max. 1 s 30.3 32.7 d&b 40D Reference manual 1.3 en...

  • Page 12: Overview

    Refer to Þ Chapter 5.2.6 "FAULT" on page 18. 4.2 Controls and indicators - User interface User interface / Status indicators RESET Refer to Þ Chapter 5.3.1 "RESET Refer to (System reset)" on page 19 d&b 40D Reference manual 1.3 en...

  • Page 13: Startup

    ▪ Do not combine the amplifiers with D6 or D12 amplifiers in one rack. ▪ Do not rack up the amplifiers together with other devices producing additional heat with opposing airflow. d&b 40D Reference manual 1.3 en...

  • Page 14: Connections

    100 to 240 V  A C, ~50/60 Hz, 1800 W. ® TRUE 1 TOP mains connector socket [1] is fitted A powerCON on the rear panel and an appropriate power cord [1.1] is supplied. d&b 40D Reference manual 1.3 en...

  • Page 15: Audio Input And Output Connectors

    Sampling frequency 44.1 | 48 | 96 | 192 kHz Word length 16 - 24 bit Digital LINK (D1/2, D3/4) 3-pin Phoenix Euroblock male electronically balanced analog signal buffering (refresh), power fail relay (Bypass) d&b 40D Reference manual 1.3 en...

  • Page 16: Speaker Outputs

    All pins of both output connectors are hardwired and permanently driven using the following pin assignment. SPEAKER OUTPUTS A (B, C, D) + = Amp A (B, C, D) pos. — = Amp A (B, C, D) neg. d&b 40D Reference manual 1.3 en...

  • Page 17: Ethernet (Dual Ethernet Port)

    Yellow ▪ Is off when the speed is 100 Mbit/s. ▪ Illuminates permanently when the speed is 1 Gbit/s. Star topology d&b 40D Reference manual 1.3 en...

  • Page 18: Gpi/Gpo (Hardware Description)

    ▪ During a firmware update, the fault contact switches to status FAULT b), as shown in the graphic opposite. Schematic circuit diagram and switching status: a) Device is On and operating Normally Open b) Device is Off or general device error Common Normally Closed d&b 40D Reference manual 1.3 en...

  • Page 19: Controls And Indicators

    2. Release the «RESET» button and briefly press the button again within 2 sec. ↳ Short confirmation beep. The network settings will become accessible for editing by tapping the «Network» navigation button as shown in the graphic opposite. d&b 40D Reference manual 1.3 en...

  • Page 20: Tft Color Touchscreen - User Interface

    The Home screen can be accessed from any subscreen at any level using the Home button ( ). Header The header section features the most vital device status information. This includes (from left to right): d&b 40D Reference manual 1.3 en...

  • Page 21: Input

    ↳ A corresponding error message will be issued in the header of the Home screen and in addition, the affected channel is indicated within the ISP indicators on the left of the data area. d&b 40D Reference manual 1.3 en...

  • Page 22: Output

    Remote ID Unique Remote identifier of the respective device in the format [nn].[nn] The first two digits represent the Subnet. Within the network up to 100 subnets can be defined (values 0 to 99). d&b 40D Reference manual 1.3 en...

  • Page 23: More

    For GPIs the logical status and for GPOs the status of the relay ( ). 2. The second LED indicates the status of the related Object (binary object) or AmpPreset ( ). 3. The third LED illuminates as soon as an error has occurred ( ). d&b 40D Reference manual 1.3 en...

  • Page 24: Event Log

    The event log stores a maximum of 10000 records. Once the maximum number of records is reached, the system starts deleting the first ones. 5.4.5.3 AmpPresets The number of the currently active AmpPresest is shown. d&b 40D Reference manual 1.3 en...

  • Page 25: Device Configuration

    ↳ In the right pane of the «Service» view the «Properties» tab becomes accessible 4. From the «Filter» drop-down list select «GPIOs» or «Initial device setup» ↳ The table will become accessible indicating the GPI/GPO states and providing the related parameter function and mode. d&b 40D Reference manual 1.3 en...
  • Page 26 Indicates an internal error of the device which causes an interruption of the audio signal. Explicitly excluded are "Load monitoring, System check and Overvoltage or Undervoltage" conditions/states. ▪ Channel mute (Mute Ch A ... Mute Ch D, Mute any, Mute all) d&b 40D Reference manual 1.3 en...

  • Page 27: Web Remote Interface

    4. Confirm the changes and close the network properties dialog. 5. To display the Web Remote interface page of the device, enter its IP address ( ) in the address bar of 192.168.1.40 your web browser. d&b 40D Reference manual 1.3 en...

  • Page 28: Web Remote Interface

    «Web Remote», «Event log», «Commands» and «Service» tabs. Web Remote tab The «Web Remote» tab shows the actual screen of the connected amplifier. All screens and screen items can be accessed by simply clicking the relevant item. d&b 40D Reference manual 1.3 en...
  • Page 29 ↳ Your web browser will display the corresponding dialog and the file will be saved as to the local Event.log download directory you have specified in the download settings of your browser. Commands tab This functionality is intended for service purposes only. d&b 40D Reference manual 1.3 en...
  • Page 30 Logout To exit the «Service» tab functions, click the «Logout» button at the top. Licenses and Copyright Selecting the d&b logo at the top left opens the «Licenses and Copyright» information page. d&b 40D Reference manual 1.3 en...

  • Page 31: Operation (Hardware References)

    100 - 127 V  A C Auxiliary Power Supply The Auxiliary Power Supply feeds the DSP section and the device control and operates within the range from 55 V  A C 400 V  A C d&b 40D Reference manual 1.3 en...

  • Page 32: Mains Inrush Current Limiter

    The Main Power Supply is started softly to limit inrush current. Up to two 40D may be powered up at the same time without triggering a line circuit breaker of 13 - 16 A (@ 230 V) or 20 A (@ 100 - 120 V) respectively.

  • Page 33: Generator Operation/Ups Requirements

    To operate the amplifier using a mains generator or uninterruptible power supply (UPS), observe the following: ▪ With the 40D amplifier the apparent power figure (VA value) is about the same as the effective power figure (W value). ▪ Use a generator or UPS that can deliver the maximum power required by the entire system.

  • Page 34: Cooling Fans

    The fan speed is consequently reduced during quieter passages preventing background noise interference. If the unit heats up a «Temp. Warning» is issued and the fans will give full cooling power permanently. d&b 40D Reference manual 1.3 en...

  • Page 35: Service/Maintenance And Care

    TFT screens. In this case, proceed as follows: 1. Spray on the soft cloth before wiping the screen. ↳ Never apply/spray directly on the screen as the liquid could penetrate the device. 2. Wipe the screen with moderate pressure. d&b 40D Reference manual 1.3 en...

  • Page 36: Possible Error Messages

    %3dV, err %04X) "Power supply" on page 31 Mains overvoltage Mains overvoltage Mains voltage too SMPS Refer to: Þ Chapter 8.1 (avg %3dV, peak high for current range %3dV, err %04X) "Power supply" on page 31 d&b 40D Reference manual 1.3 en...
  • Page 37 Amp. comm. error SMPA Communication communication error No keepalive for 1 disturbed or SMPA (error %04X) fault Temperature error %d Channel '%c' Critical amp. channel SMPA Insufficient cooling °C temperature error %d temperature °C (power %uW) d&b 40D Reference manual 1.3 en...
  • Page 38 OCA remote error OCA remote error OCA remote error Speaker imp. fault Load Monitoring Speaker or cable impedance error fault Input fallback Input fallback (A1= Input Fallback Input Fallback was %d, A2=%d, D1=%d, activated D2=%d) d&b 40D Reference manual 1.3 en...
  • Page 39 Input Monitoring Cabling AX (level %4.1ddBu, Fault threshold %4.1ddBu) 165-168 Input monitoring fault Input monitoring fault Input Monitoring Cabling, routing, DX (level Fault unlocked %4.1ddBFS, lock %d, DS data pri %d, DS data sec %d) d&b 40D Reference manual 1.3 en...

  • Page 40: Manufacturer's Declarations

    As required by the GPL and LGPL licenses, we will send you a copy of the used source code on request. If you would like to obtain a copy, please contact us by mail to: software.support@dbaudio.com d&b 40D Reference manual 1.3 en...
  • Page 42 www.dbaudio.com...
  • Page 44 www.dbaudio.com...

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