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Fohhn DI-2.4000 User Manual

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USER MANUAL
AMP CONTROLLER-SERIES
DI-SERIES
Please read this user manual through carefully before putting the system into operation and keep it for future reference.
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  • Page 1 USER MANUAL AMP CONTROLLER-SERIES DI-SERIES Please read this user manual through carefully before putting the system into operation and keep it for future reference.

  • Page 2: Table Of Contents

    3.2.3 Status Displays ........................19 3.3 Configuration ..........................20 3.3.1 System Requirements ......................20 3.3.2 Downloading and Installing FOHHN AUDIO SOFT ..............20 3.3.3 FOHHN-NET Cabling and ID Allocation ................. 21 3.3.4 Loading Loudspeaker Presets ....................23 3.3.5 Updating the Firmware ......................23 3.3.6 Connecting All Devices ......................
  • Page 3 4.2 Sequential Remote Switch-On / Switch-Off ................38 4.3 Examples ............................39 5. Technical Specifications ........................42 5.1 DI-2.2000 ............................. 42 5.2 DI-4.1000 ............................. 47 6. Troubleshooting ..........................52 7. Service and Repair ..........................53 7.1 Maintenance Measures ....................... 53 7.2 Cleaning Fan Filter Foam Without Tools ..................

  • Page 4: Introduction And General Instructions

    CONTROLLER-SERIES, DI-SERIES amplifiers are equipped with the latest CLASS D technology. These amplifiers have been developed to meet the highest demands for sound quality and reliability. All DSP functions on a DI-SERIES amplifier can be controlled using a single piece of software, FOHHN AUDIO SOFT.

  • Page 5: General Safety Instructions

    That said, the information presented here should be regarded as accompanying advice and it does not affect the ultimate responsibility of the user to ensure safe on-site operation of a FOHHN system. Warning: To avoid injury, the device must be stored, installed and operated well away from children.

  • Page 6: Acoustic Safety Information

    (Remove the plug from the mains socket in order to completely disconnect the device!) 1.1.4 Acoustic Safety Information FOHHN loudspeaker systems are capable of generating very high sound pressure levels, which can cause irreparable damage to hearing. Warning: To avoid potential hearing impairment, never stand in close proximity (1 metre or less) to a device while it is in operation.

  • Page 7: Connections And Cabling

    The wiring up of loudspeakers should only be done by suitably qualified personnel! Important: To enable communication between a Windows PC with FOHHN AUDIO SOFT installed and DI-Series amplifiers, a FOHHN network adapter (e.g. NA-11 FOHHN-NET USB ADAPTER or NA-3 FOHHN-NET ETHERNET ADAPTER) is required.

  • Page 8: Information On Abnormal Operation

    The temperature of the FOHHN system is displayed in FOHHN AUDIO SOFT. Shutdown can also occur if the product is exposed to direct sunlight or very high environmental temperatures. Reliable operation is only guaranteed in compliance with the permissible ambient temperature range.

  • Page 9: The Product

    Thanks to their integrated FOHHN AUDIO DSP, the amplifiers can be networked, remotely controlled and remotely monitored. A single piece of control software, FOHHN AUDIO SOFT, provides access to all DSP functions and presets. (The current version of this software can be downloaded free of charge at: www.fohhn.com.)

  • Page 10: Contents

    DI-2.4000 4000 W 2000 W 1000 W The DI-4.1000 and DI-2.2000 are currently available. Further amplifiers are in planning. 2.2. Contents Every product is examined in accordance with the highest quality and safety standards prior to despatch. Please check your product carefully for any signs of transport damage and, in the event of any damage having occurred, inform your dealer and the transportation company immediately.

  • Page 11: Setting Up

    3. Setting Up 3.1 Professional Rack Mounting For professional installation in mobile 19-inch racks or cabinets, the amplifier is equipped with the appropriate front and rear mounting brackets. The enclosure is torsion resistant. Please therefore take care that the amplifier is well ventilated and cooled from both the front and the back during use.

  • Page 12: Standard Connections

    (remote) switch on/off. Further information on this can be found in Chapter 4 of the user manual! (5) switch These terminal blocks serve as switching contacts for changing presets. They can be configured in FOHHN AUDIO SOFT (see Chapter 3.4.2 “Switching Contact“).
  • Page 13 50 V and 500 mA. (7) Fohhn-Net input This terminal block is used to connect the amplifier to the FOHHN-NET remote control network. Only use a FOHHN network adapter for this (NA-11 FOHHN-NET USB ADAPTER or NA-3 FOHHN-NET ETHERNET ADAPTER).
  • Page 14 (13) CH 3/4 link out Digital audio signals (AES/EBU) can be looped through using these terminals. The terminals are intended for both input channels CH 3 and CH 4. These outputs are also available on 2-channel amplifiers! (14) + (15) Speaker Output CH 1 / CH 2 Loudspeaker systems are connected to these terminals (up to 6 mm²...

  • Page 15: Optional Connection Interfaces

    Input option AES/EBU XLR Interface (1) Fohhn-Net input The amplifier is connected to the FOHHN-NET remote control network via this EtherCON socket. Only use a FOHHN network adapter for this (NA-11 FOHHN-NET USB ADAPTER or NA-3 FOHHN-NET ETHERNET ADAPTER). (2) Fohhn-Net link out FOHHN-NET control signals are looped through via this Link Out socket.
  • Page 16 These outputs are also available on 2-channel amplifiers! Input option Analog XLR Interface (1) Fohhn-Net input The amplifier is connected to the FOHHN-NET remote control network via this EtherCON socket. (2) Fohhn-Net link out FOHHN-NET control signals are looped through via this Link Out socket.
  • Page 17 (CH1 to CH4) respectively. Input option Dante™ Interface (1) Primary Digital audio signals (Dante™) and remote control signals (FOHHN-NET) can be fed in via this RJ-45 input (1000 Base-T Ethernet). (2) Secondary This RJ-45 input (1000 Base-T Ethernet) is exclusively used for redundant cabling.
  • Page 18 (2) Link 2 Digital audio signals (Optocore) and remote control signals (FOHHN-NET) can be fed in via this LWL input. The input can be used both for redundant cabling (Optocore Ring) and as a Link! Output option Speakon sockets (1) + (2) Speaker Output CH 1 / CH 2 Loudspeaker systems are connected to these Speakon connectors.

  • Page 19: Status Displays

    The output 3 and output 4 symbols are only available on 4-channel amplifiers! send This symbol lights up if FOHHN-NET control signals are transmitted from the DSP amplifier. receive This symbol lights up if the DSP amplifier receives FOHHN-NET control signals.

  • Page 20: Configuration

    3.3.2 Downloading and Installing FOHHN AUDIO SOFT FOHHN AUDIO SOFT is directly compatible with all FOHHN active DSP systems. Therefore, you do not need any special DI-SERIES version of the software. Regardless of the amplifier, you can always work with the same software and within the same user interface.

  • Page 21: Fohhn-Net Cabling And Id Allocation

    5. Click on Finish to complete the installation. The software is immediately ready for use following installation and can either be opened via the program symbol on the desktop, or via the Start > All Programs > Fohhn Audio AG > Fohhn Audio Soft path.
  • Page 22 Confirm this by clicking Ok: The FOHHN amplifier will now have a newly assigned ID. You can also change the ID of a FOHHN amplifier at any time while it is in use. To do this, the system must be in the FOHHN-NET. Proceed as follows: 1.

  • Page 23: Loading Loudspeaker Presets

    FOHHN AUDIO SOFT user manual. 3.3.5 Updating the Firmware The range of functions in your FOHHN system depends not only on FOHHN AUDIO SOFT, but also on the firmware in your devices and on the loudspeaker database. From time to time, updates are available for these sets of data, which can be downloaded into FOHHN AUDIO SOFT (internet connection required!).

  • Page 24: Gain Structure And Signal Chain

    Fig. 1: Overview of the signal chain on a DI-Series amplifier channel There are many gain options, both inside and outside the FOHHN DSP, that enable flexible handling of any application – even in complex situations where the matrix mixing functions are used.
  • Page 25 Example 1 Standard signal chain, input-, routing- and output- gain 0 dB -> no change of input signal level Example 2 Mix level too low; higher input gain also amplifies noise Example 3 Mix level too high leading to input signal clipping. Lower input gain does not prevent audible clipping! Example 4 Incorrect gain structure leads to loss of signal...

  • Page 26: Matrix Functions And Dsp Routing

    3.3.8 Matrix Functions and DSP Routing Fohhn DSP – Routing Matrix Functions Fig. 1: Four input channels are mixed to one output channel. The mix volume of each input can be adjusted by one routing gain. Fig. 2: Four input channels are mixed to two output channels.
  • Page 27 Fig. 3: Four input channels are mixed to four output channels. The mix volume of each input to a specific output can be adjusted via one routing gain.

  • Page 28: Integration Into A Dante™ Network

    3.3.9 Integration into a Dante™ Network For amplifiers with a Dante™ interface, connection to the FOHHN-NET is via an Ethernet switch, to which an appropriate Dante device must also be connected. For control via PC, Audinate’s Dante Controller software is required in addition to FOHHN AUDIO SOFT (see Chapter 3.3.3 “FOHHN-NET Cabling and ID Allocation”).
  • Page 29 Example: Control of DI-Series amplifiers via computer and Ethernet switch using redundant cabling. (Here, all devices must be in “Redundant Mode”.)
  • Page 30 You can download this free of charge from the following URL: https://www.audinate.com/products/firmware-update-manager Dante Firmware files have the extension .dnt and can be downloaded from here: https://www.fohhn.net/download/dante/ Example: DI4Amp_1.0.0.dnt for Dante devices in the DI-SERIES. Perform the update as follows: 1.
  • Page 31 6. After a full update, the Dante devices should be restarted by switching off then on. The Dante Firmware update only updates the firmware of the integrated Dante module. The FOHHN device firmware is unaffected and must, if necessary, be separately updated! Here you can find all of Audinate’s technical documentation relating to Dante: https://www.audinate.com/resources/technical-documentation...

  • Page 32: Integration Into An Optocore Network

    For amplifiers with an Optocore interface, connection to the FOHHN-NET is via a network converter (e.g. the Optocore X6R-FX), to which an appropriate Optocore device (e.g. a mixing desk) must also be connected. For control via PC, the Optocore Control Software is required in addition to FOHHN AUDIO SOFT.

  • Page 33: Integration Into The Airea-Net

    3.3.11 Integration into the AIREA-NET Amplifiers with an AES/EBU XLR Interface have the possibility of being integrated into a FOHHN AIREA system: The system has its own network for transmitting supply voltage, digital audio signals (AES/EBU) and FOHHN-NET control signals – the AIREA-NET. For connection to this, an AIREA BREAK OUT EXTENSION ABX-4 is required.
  • Page 34 Proceed as follows to set up Auto Power Save in FOHHN AUDIO SOFT: 1. Select one or more amplifiers in the Device List and, with a right mouse click, open the context menu. 2. Select the Options entry. This opens the Advanced device settings configuration dialog.

  • Page 35: Switching Contact

    “close” or “open” status of the switching contact. Before configuring the switching contacts, we recommend that you first save all user presets! Further information on saving user presets can be found in the FOHHN AUDIO SOFT user manual. You can download this from the Fohhn website:...

  • Page 36: Password Lock

    DI-SERIES amplifiers and their parameter settings can be password protected (or locked) to prevent any subsequent changes. This password protection can be set up in FOHHN AUDIO SOFT. Further information on password protection can be found in Chapter 6.6 “Password Lock” of the FOHHN AUDIO SOFT user manual.

  • Page 37: Remote Switch-On And Sequential Switch-On

    4. Remote Switch-On and Sequential Switch-On If multiple DI-SERIES amplifiers are being used, these can be linked to one another via the remote pwr in or out connector (see Chapter 3.2.1 “Standard Connections”) and thus be sequentially switched on. Remotely controlled switch-on / switch-off is also possible. Cabling Switch states for 12 V control voltage At the remote pwr input is a control voltage that shuts down the amplifier.

  • Page 38: Sequential Remote Switch-On / Switch-Off

    4.2 Sequential Remote Switch-On / Switch-Off The linked amplifiers can also be switched on and off via remote control. If more than eight amplifiers are used in this configuration, we recommend a control voltage which is greater than 12 V to ensure reliable control! If a control voltage is not present at the remote pwr in of amplifier 1, all amplifiers will switch on one after the other.

  • Page 39: Examples

    4.3 Examples In the following examples it is assumed that the power switches on the front panels of all the amplifiers are switched on, all devices are connected to a power supply and mains voltage is present! Example 1: Sequential switch-on within an amplifier stack after connection to the mains power supply cable.
  • Page 40 Example 3: Remote switch-on / switch-off of part of the stack while devices are connected with mains Example 4: Logical operation: Amplifiers 4 and 5 are switched on at the same time as amplifiers 1 to 3, but have a separate switch-off option.
  • Page 41 Example 5: Remote toggle switching of two stacks...

  • Page 42: Technical Specifications

    0.08 % (1 kHz, 8 Ohm, 3 dB below clipping) Dynamic range >120 dB Remote control Fohhn-Net over RS-485, Fohhn Audio Soft Remote monitoring Temperature, Protect, AES/EBU Signals, Power Supply, Fohhn-Net, Fohhn Audio Soft Fault contact 1 x Relais, 2 x UM, 3-pin Phoenix...
  • Page 43 Heat loss Maximal 200 W, 680 BTU/h, 172 kcal/h (Pink Noise, 6 dB crest, 1/4 Pmax) Temperature range 0 – 40°C Cooling temperature-controlled fan Weight 9.4 kg Dimensions (W x H x D) 2 HE / 19″, 485 x 89 x 425 mm Controllers Digital signal processors Independent limiters...
  • Page 44 AES/EBU link out from input Latency 0.0 ms Input Interface (AES/EBU XLR), optional Inputs 2 x XLR AES/EBU, 1 x etherCON Fohhn-Net Output 2 x XLR AES/EBU, 1 x etherCON Fohhn-Net Signal inputs AES/EBU 32 kHz – 96 kHz, 16/24 bit...
  • Page 45 > 110 dB/A Input impedance 10 kOhm Latency 1.0 ms Input Interface (Dante), optional Inputs 2 x RJ-45 1000BASE-T Ethernet, Dante and Fohhn-Net Outputs Latency Dante +0.6 ms Input Interface (Optocore), optional Inputs 2 x LWL, Optocore and Fohhn-Net Standard Output (terminal blocks)
  • Page 46 Output LED 2 x output signal LED, white = signal (> -50 dBFS), red = clip (> -3 dBFS)

  • Page 47: Di-4.1000

    0.08 % (1 kHz, 8 Ohm, 3 dB below clipping) Dynamic range >120 dB Remote control Fohhn-Net over RS-485, Fohhn Audio Soft Remote monitoring Temperature, Protect, AES/EBU Signals, Power Supply, Fohhn-Net, Fohhn Audio Soft Fault contact 1 x Relais, 2 x UM, 3-pin Phoenix...
  • Page 48 Temperature range 0 – 40°C Cooling temperature-controlled fan Weight 9.4 kg Dimensions (W x H x D) 2 HE / 19″, 485 x 89 x 425 mm Controllers Digital signal processors Independent limiters Selective 3-band limiting bass/mid/high Band-specific time constants Filter technology 80-bit double precision Input...
  • Page 49 AES/EBU link out from input Latency 0.0 ms Input Interface (AES/EBU XLR), optional Inputs 2 x XLR AES/EBU, 1 x etherCON Fohhn-Net Outputs 2 x XLR AES/EBU, 1 x etherCON Fohhn-Net Signal inputs AES/EBU 32 kHz – 96 kHz, 16/24 bit...
  • Page 50 > 110 dB/A Input impedance 10 kOhm Latency 1.0 ms Input Interface (Dante), optional Inputs 2 x RJ-45 1000BASE-T Ethernet, Dante and Fohhn-Net Outputs Latency Dante +0,6 ms Input Interface (Optocore), optional Inputs 2 x LWL, Optocore and Fohhn-Net Standard Output (terminal block)
  • Page 51 Output LED 4 x output signal LED, white = signal (> -50 dBFS), red = clip (> -3 dBFS)

  • Page 52: Troubleshooting

    Problem Probable Cause Possible Remedies No sound is audible. However, The In- and Output routing in the Check the DSP settings in FOHHN there is an audio signal. User DSP is not correct. AUDIO SOFT. The cable connection between Check the cable or connect the amplifier and loudspeaker is loudspeaker to the amplifier.

  • Page 53: Service And Repair

    Do not carry out any servicing or any repairs to the device beyond what is listed under “Maintenance Measures” (below) or advised in the “Cleaning Fan Filter Foam Without Tools” section. For details of a FOHHN® Service provider in your area, please contact us at the address on the previous page.
  • Page 54 2. The filter foam that is to be cleaned can be found in the front panel’s fan filter holder. Remove this filter foam and clean it, e.g. by blowing on it. 3. Put the cleaned filter foam back in the filter holder and re-attach the front panel to the front of the enclosure.

  • Page 55: Appendix

    CE marking. The relevant Declarations of Conformity are available on request from Fohhn Audio AG, 72622 Nürtingen 8.3 Trademarks All trademarks and brand names referred to in this manual, which may be protected by third parties, are subject to the provisions of trademark law and the title rights of their respective owners.

  • Page 56: Disclaimer And Copyright

    8.5 Disclaimer and Copyright Disclaimer The contents of this user manual have been created with great care. However, FOHHN AUDIO AG cannot guarantee that the information therein (images, text and other representations) is always complete, correct and current. FOHHN AUDIO AG therefore reserves the right to make changes or additions to the given information at any time.

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