Danley D Series User Manual

Dsp amplifiers
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Summary of Contents for Danley D Series

  • Page 2 Page 2 D Series D5K4/D8K4/D14K Operating Instructions...
  • Page 3: Table Of Contents

    Page 3 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions CONTENTS THANKS ............................7 INTRODUCTION ........................7 IMPORTANT SAFETY INSTRUCTIONS ................8 INSTRUCTIONS DE SECURITE IMPORTANTES ............9 Installing Your Amplifier: Electrical Considerations .......... 10 Installing Your Amplifier: Mechanical Considerations ........12 Installing Your Amplifier: RF Emissions ..............
  • Page 4 Page 4 D Series D5K4/D8K4/D14K Operating Instructions Operating Your Amplifier: Advanced Editing Features ........35 Overview ............................... 35 Selecting Available Sources (Analogue, AES, Network Audio) ..........35 Switching from Analogue to AES Sources ..................36 Choosing Sources for Input Processing and Failover Configuration ........37 Changing Network Output Source ......................
  • Page 5 Page 5 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Appendix I: Limiters and How to Set Them Correctly ........73 Program Limiter ............................73 Peak Limiter..............................74 Setting Accurate Limiter Thresholds – Program Limiter ............77 Amplifier Outputs’ Program Limiter Lookup Table ..............78 Auxiliary Outputs’...
  • Page 6 Page 6 D Series D5K4/D8K4/D14K Operating Instructions...
  • Page 7: Thanks

    DSP amplifiers handled wirelessly by the dedicated iPad app. With a range of power levels available in the D Series, the non-DSP (ND) amplifiers can be networked to a single DSP model, creating a powerful, efficient system that’s easy to expand and...
  • Page 8: Important Safety Instructions

    Page 8 D Series D5K4/D8K4/D14K Operating Instructions IMPORTANT SAFETY INSTRUCTIONS CAUTION: RISK OF ELECTRIC SHOCK. DO NOT OPEN The lightning flash with arrowhead symbol The exclamation mark within an within an equilateral triangle is intended equilateral triangle is intended to alert the...
  • Page 9: Instructions De Securite Importantes

    Page 9 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions INSTRUCTIONS DE SECURITE IMPORTANTES ATTENTION: RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR Le symbole repr sentant un éclair fl Le point d’exclamation dans un triangle é é é dans un triangle...
  • Page 10: Installing Your Amplifier: Electrical Considerations

    Page 10 D Series D5K4/D8K4/D14K Operating Instructions Installing Your Amplifier: Electrical Considerations The amplifier has been manufactured to comply with your local power supply requirements, but before connecting the unit to the supply, ensure that the voltage (printed on the rear panel) is correct.
  • Page 11 Page 11 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions...
  • Page 12: Installing Your Amplifier: Mechanical Considerations

    Please also see the notes regarding maintenance on page 69. Installing Your Amplifier: RF Emissions The high frequency resonant converters in the D Series amplifiers have been designed to have very low radio frequency (RF) emissions; however even these low level emissions can cause interference with other equipment.
  • Page 13: About Your Amplifier: Dynamic Amplifier Performance Measurements

    D Series D5K4, D8K4 and D14K4 DSP Operating Instructions About Your Amplifier: Dynamic Amplifier Performance Measurements The D Series DSP amplifiers are the very latest examples of a ‘dynamic amplifier’. This new ‘breed’ of power amplifiers provide very high peak power levels in a much smaller, and lighter, package than previously possible with conventional designs.
  • Page 14: Connecting To Your Amplifier: Line Inputs And Outputs

    Page 14 D Series D5K4/D8K4/D14K Operating Instructions Connecting To Your Amplifier: Line Inputs and Outputs The inputs are made via 3-pin XLR connectors, which are electronically balanced and should be connected via a high grade twin core screened cable, as follows:...
  • Page 15: Connecting To Your Amplifier: Speaker Outputs

    Page 15 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Connecting To Your Amplifier: Speaker Outputs The speaker outputs are via Neutrik Speakon connectors. 2 pole (NL2FC) or 4 pole (NL4FC) connectors can be used. Pin 1+: Hot Pin 1-: Cold Additionally, Channel 1 Speakon connector carries Channel B2output on Pins +2 &...
  • Page 16: Connecting To Your Amplifier: Bridged (Mono) Operation

    Page 16 D Series D5K4/D8K4/D14K Operating Instructions Connecting To Your Amplifier: Bridged (Mono) Operation Pairs of channels may be independently bridged – channel pair 1+2, and/or channel pair 3+4. The method is the same for both channel pairs: Select the required bridged mode through the front panel MENU system (see page 44 for more information).
  • Page 17: Operating Your Amplifier: Front Panel Controls And Indicators

    Page 17 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Operating Your Amplifier: Front Panel Controls and Indicators 1: USB Type “B”: Connect to a computer for remote control – a driver will be required. Please see the section on remote control starting on page 51.
  • Page 18 Page 18 D Series D5K4/D8K4/D14K Operating Instructions 8: REMOTE LED: This will flash when the unit is being addressed under remote control. 9: DIGITAL IN LED: This illuminates if either AES input is switched in (replacing the respective analogue input channel) and will flash if there is a loss of lock on either input. Note that this does not mean AES is actually routed to the amplifier’s DSP, only that a rear panel socket is set to...
  • Page 19: Operating Your Amplifier: Rear Panel Sockets And Switches

    Page 19 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Operating Your Amplifier: Rear Panel Sockets and Switches D8K4 and D14K4 rear panel RS485 G PIO PO RT CO NTRO L 1 - AUDIO NETWO RK - 2 AUX 4...
  • Page 20 Page 20 D Series D5K4/D8K4/D14K Operating Instructions structure. For more on this feature see the block diagram on page 22 and set-up information from page 42. 6: Ethernet control port: Your amplifier may be remotely controlled by connecting it to a computer via this standard Ethernet port connection.
  • Page 21: Operating Your Amplifier: Initial Set-Up And Switching On

    Page 21 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Operating Your Amplifier: Initial Set-up and Switching On Please read all documentation before operating your amplifier and retain all documentation for future reference. Do not spill water or other liquids into or on the unit and do not operate your amplifier while standing in liquid.
  • Page 22: Inside Your Amplifier: Dsp Layout, Configurations And Routing

    Page 22 D Series D5K4/D8K4/D14K Operating Instructions Inside Your Amplifier: DSP Layout, Configurations and Routing...
  • Page 23: Source Choices And Selection

    Page 23 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Source Choices and Selection Your amplifier can source audio from analogue, AES ANALOGUE IN C ALIBRATION digital, or network locations (if a network card is fitted). Analogue and AES digital audio are standard, and arranged so that AES digital audio can be chosen in pairs of channels to replace either analogue inputs A&B...
  • Page 24: Input Processing Channels

    Page 24 D Series D5K4/D8K4/D14K Operating Instructions Input Processing Channels Your amplifier has four input channels of processing that can be fed from a variety of sources. INPUT PROC ESSING C HANNELS A- D GAIN DELAY PEQ x 9 DYNAMIC EQ x 3...
  • Page 25: Power Amplifier And Auxiliary Output Processing Channels

    Page 25 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Power Amplifier and Auxiliary Output Processing Channels OUTPUT C HANNELS 1 - 4 (POWER AMPLIFIER C HANNELS) SPEAKER OUTPUTS PEQ x 9 GAIN POLARITY DELAY HPF - XOVER - LPF PROG.
  • Page 26: Independent Network Audio Outputs

    This feature is primarily intended for use with the D Series-ND models, which may also be fitted with a network audio interface, allowing them to utilise the additional processing channels in your DSP model via connection with a single Ethernet cable.
  • Page 27: Operating Your Amplifier: Directly Editing Audio Parameters

    Page 27 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Operating Your Amplifier: Directly Editing Audio Parameters Overview Editing all audio parameters is available from the front panel of your amplifier using a combination of the select BANK key, reassignable EDIT keys, and the BACK/NEXT/ENTER navigation controls.
  • Page 28: Input Gain

    Page 28 D Series D5K4/D8K4/D14K Operating Instructions Input Gain Variable between -40dB and +6dB in 0.1dB steps. Inp A Gain Input Gain= 6.0dB Input Delay Max delay time is 650.000mS in 10uS steps. Swap to 1mS steps by pressing ENTER.
  • Page 29: Input Parametric Eq Bands 1 Through 8

    Page 29 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Input Parametric EQ Bands 1 through 8 All parametric bands cover a frequency range of 19.7Hz to 32kHz when in standard PEQ mode. Some restrictions apply when other filter types are selected. Move between frequency, ‘Q’ and filter gain by pressing ENTER.
  • Page 30: Output Gain

    Page 30 D Series D5K4/D8K4/D14K Operating Instructions Output Gain Variable between -40dB and +15dB in 0.1dB steps. Out 1 Output 1 Gain Output Gain= +10.2dB Output Polarity Switch between normal [+] and inverted [-] polarity. Note that channel ganging is temporarily disabled for polarity adjustments.
  • Page 31: Output High Pass Filter

    Page 31 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Output High Pass Filter Set the high pass filter frequency – a setting of “<10Hz” bypasses the filter. To change the filter slope and type, press ENTER and then adjust with the encoder. Note that 48dB/Octave filters will only be available if PEQ 6 &...
  • Page 32: Output Parametric Eq Bands 1 Through 9

    Page 32 D Series D5K4/D8K4/D14K Operating Instructions Output Parametric EQ Bands 1 through 9 All parametric bands cover a frequency range of 19.7Hz to 32kHz when in standard PEQ mode. Some restrictions apply when other filter types are selected. Move between frequency, ‘Q’ and filter gain by pressing ENTER.
  • Page 33: Output Limiters: Program Limiter

    Page 33 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Output Limiters: Program Limiter Note that the output limiters are calibrated differently for the amplifier output channels and the auxiliary output channels. They cover the same range, but the scaling on the threshold is different as the auxiliary outputs are calibrated to the maximum line output level, whilst the amplifier outputs are calibrated to include the gain of the power amplifier.
  • Page 34: Output Matrix Gains

    Page 34 D Series D5K4/D8K4/D14K Operating Instructions Output Matrix Gains Note that this feature will only be displayed if the configuration for the amplifier or auxiliary outputs has been set to operate in “Full Matrix” mode , as opposed to “Free Assign” or a standard routing configuration (1 x 4 way, 2 x 2 way etc.)
  • Page 35: Operating Your Amplifier: Advanced Editing Features

    Page 35 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Operating Your Amplifier: Advanced Editing Features Overview In addition to being able to control all the EQ and limiter functions via the front panel, it is also possible to completely reconfigure the source selections and routing, turn on matrix mixing, and configure ganging options to speed up editing.
  • Page 36: Switching From Analogue To Aes Sources

    Page 36 D Series D5K4/D8K4/D14K Operating Instructions Switching from Analogue to AES Sources To select inputs, from the home screen, press MENU, choose the CONFIGURATION Sub-Menu and press ENTER. CONFIGURATION Sub-Menu Input AES Selection Use the encoder or BACK and NEXT keys to find the Input AES Selection option and press ENTER.
  • Page 37: Choosing Sources For Input Processing And Failover Configuration

    Page 37 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Choosing Sources for Input Processing and Failover Configuration What is Failover? From firmware version 1.30 onwards, your amplifier supports comprehensive source failover to secondary or even tertiary sources should the primary source fail. Using this system assumes you have more than one source format available (so, for example, an AES stream, plus an analogue backup, or a Dante stream plus analogue backup.)
  • Page 38 Page 38 D Series D5K4/D8K4/D14K Operating Instructions The screen will now show the current choice for the first input processing channel (A): Input Source Selection Primary A = Analogue A Use the encoder or BACK and NEXT keys to scroll through the eight choices for this input. These...
  • Page 39 Page 39 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions If a digital selection has been made for a primary source on any channel, then pressing NEXT after this selection will ask if Failover is to be used: Input Source Selection Failover>Secondary = Yes *...
  • Page 40: Changing Network Output Source

    Page 40 D Series D5K4/D8K4/D14K Operating Instructions Changing Network Output Source INPUT PROCESSING CHANNELS A-D OUTPUT CHANNELS 1 -4 (POWER AMPLIFIER CHANNELS) SPEAKER OUTPUTS GAIN DELAY PEQ x 9 DYNAMIC EQ x 3 MUTE GAIN POLARITY DELAY HPF - XOVER - LPF PEQ x 9 PROG.
  • Page 41 Page 41 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Changing Network Output Source cntd… INPUT PROCESSING CHANNELS A-D OUTPUT CHANNELS 1 -4 (POWER AMPLIFIER CHANNELS) SPEAKER OUTPUTS GAIN DELAY PEQ x 9 DYNAMIC EQ x 3 MUTE GAIN...
  • Page 42: Changing Crossover Configuration

    Page 42 D Series D5K4/D8K4/D14K Operating Instructions Changing Crossover Configuration As the amplifier output’s configuration setup is identical to the auxiliary output’s configuration, this section will just explain the former. The configuration of the amplifier outputs 1-4, and auxiliary outputs 1-4 have separate entries in the Configuration sub-menu, but operate identically.
  • Page 43: Using Free Assign Mode

    Page 43 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Using Free Assign Mode Free assign mode allows any combination of inputs to be routed to an output, with the send levels being intelligently adjusted to ensure that the output levels sum to 0dB.
  • Page 44: Bridged Mode For Output Pairs

    Output Routing AutoLimiter TimeCst:Yes* DANLEY advise setting the limiter time constants automatically. They are based on the frequency of this channel’s high pass crossover filter. Unless you have a particular reason to not use the auto setting, set this to YES and press ENTER.
  • Page 45 Page 45 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Depending on what bridged mode are active the appropriate LED will illuminate above the power switch: There are some changes operationally when a pair of channels are bridged. Channel MUTE keys will be automatically ganged;...
  • Page 46: Resetting Audio Parameters

    Page 46 D Series D5K4/D8K4/D14K Operating Instructions Resetting Audio Parameters Resetting parameters is available through the CONFIGURATION > Output Routing menu and CONFIGURATION > Auxiliary Routing menu as part of the set-up wizard. The final set-up query is about resetting the current parameters. If you have already edited the outputs’...
  • Page 47 Page 47 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Use the encoder or BACK and NEXT keys to find the Output Ganging option and press ENTER. Output Routing Ganging = 1+3 2+4 * Use the encoder or BACK and NEXT keys to choose the required ganging option and press ENTER.
  • Page 48: Operating Your Amplifier: Storing And Recalling Settings

    Page 48 D Series D5K4/D8K4/D14K Operating Instructions Operating Your Amplifier: Storing and Recalling Settings Memory Overview The memory in your amplifier is organised into three different types – input memories, output memories and source memories. Input and output memories are formatted in banks of four channels at a time –...
  • Page 49: Storing A Memory

    Page 49 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Storing a Memory… When a memory is to be stored, the type is first selected (Input, Output, Source or Everything) and then in the case of an Output memory, this must be further qualified to determine if the stored data is to originate from the amplifier outputs or the auxiliary outputs.
  • Page 50: Recalling A Memory

    Page 50 D Series D5K4/D8K4/D14K Operating Instructions Recalling a Memory… When a memory is recalled, after choosing the type (Input, Output, Source or Everything), recall of Output memories is further qualified by what bank of outputs the recalled data is to affect –...
  • Page 51: Operating Your Amplifier: System Adjustments

    Page 51 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Operating Your Amplifier: System Adjustments Overview Under the System Sub-Menu you’ll find all the non-audio features relating to your amplifier’s operation. As these are self-explanatory, they are summarised in the table below: System Sub Menu Option What it’s for…...
  • Page 52: Operating Your Amplifier: Remote & External Interfaces (Incl. Dante)

    USB connection to the front panel, and this can also be used as a converter to an RS485 network, where other Delta devices or DANLEY processing units may be connected. It may also be controlled via an Ethernet connection and again will relay data onto an RS485 network if required.
  • Page 53: Configuration Of The Remote Interface

    Page 53 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Configuration of the Remote Interface To configure the remote interface, from the home screen, press MENU, choose the INTERFACE Sub-Menu and press ENTER. INTERFACE Sub-Menu External Interface Use the encoder or BACK and NEXT keys to select External Interface and press ENTER.
  • Page 54 RS485 Mode: Choose Relay to relay all remote control data onto the RS485 network for connection to further devices (other DSP amplifiers or DANLEY processors) RS485 Speed: Only shown if RS485 Mode = Relay or Simple: set RS485 baud rate...
  • Page 55 Page 55 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Mode = USB Only: The USB socket on the front panel is active. Selecting this choice will then ask for the following further information to be confirmed: RS485 Mode: Choose Relay to relay all remote control data onto the RS485 network for connection to further devices.
  • Page 56 Page 56 D Series D5K4/D8K4/D14K Operating Instructions Mode = Ethernet Or USB: The Ethernet control port on the rear panel is active, so long as the amplifier is not connected via USB, whereupon it automatically takes priority. Selecting this choice will then ask for the following further information to be confirmed: RS485 Mode: Choose Relay to relay all remote control data onto the RS485 network for connection to further devices.
  • Page 57 Page 57 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Mode = RS485 Only: The RS485 port on the rear panel is active. Selecting this choice will then ask for the following further information to be confirmed: RS485 Speed: Set RS485 baud rate (recommended to use 115200 unless working with older DP224 and DP226 processors in which case use 38400) Remote ID Number: Set a device ID (still required even on Ethernet connections).
  • Page 58 Page 58 D Series D5K4/D8K4/D14K Operating Instructions...
  • Page 59: Gpio Operation

    Page 59 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions GPIO Operation The General Purpose Input and Output pins on your amplifier can be programmed in a variety of ways to adjust the operation of the amplifier. To configure the GPI interface, from the home screen, press MENU, choose the INTERFACE Sub- Menu and press ENTER.
  • Page 60: Vca Mode

    Page 60 D Series D5K4/D8K4/D14K Operating Instructions The following input control modes are available on the GPI pins in a variety of preset combinations. VCA Mode Input gains can be adjusted in channel pairs with absolute level control over the range of +6dB to -18dB in 0.5dB steps, via an analogue voltage applied to the GPI input.
  • Page 61: Standby Mode

    Page 61 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Standby Mode The amplifier can be put into or brought out of standby by applying a logic level to the selected GPI pin. Changing standby by another method (remote message or front panel) will override the GPI setting until the state of the GPI input is next changed (last takes priority).
  • Page 62: Memory Recall Mode

    Page 62 D Series D5K4/D8K4/D14K Operating Instructions Memory Recall Mode The amplifier can recall memory settings based on either a logic level (memory 1 or 2) or a voltage level (memories 1 to 8 are available). Select the required recall mode and press ENTER – either “Mem 1-8” or “Mem 1/2”.
  • Page 63: General Purpose Output Pins

    Page 63 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions General Purpose Output Pins The general purpose output pins have a preset configuration and there are no user adjustable options for them. GP output 1 (port pin 4) reflects the amplifier’s standby state and is active high, so a high logic level seen on this pin means the amplifier is in standby.
  • Page 64: Operating Mode Combinations

    Page 64 D Series D5K4/D8K4/D14K Operating Instructions Operating Mode Combinations The following combinations of operation are available for the GPI port pins: GPI1 Mode GPI2 Mode GPI1 Mode GPI2 Mode VCA:A+B Sys. Mute Sys. Mute Standby GPI1 Mode GPI2 Mode...
  • Page 65: Dante Interface Configuration

    Page 65 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Dante Interface Configuration Your Dante interface will work straight out of the box, but should you wish to adjust settings, from the home screen, press MENU, choose the INTERFACE Sub-Menu and press ENTER.
  • Page 66: Operating Your Amplifier: Using & Clearing Security; Defaulting Settings

    Page 66 D Series D5K4/D8K4/D14K Operating Instructions Operating Your Amplifier: Using & Clearing Security; Defaulting Settings If you need to quickly clear all current settings and memories, there are a variety of setup control codes that can do this for you.
  • Page 67: Unlocking

    D4B13D – clear all user memories and reset to defaults, keeping security and factory alignment settings A2341B – clear current settings to default (leaves memories, alignments and security) AA2121 – clear security via the DANLEY supplied crack code (see page 68 for more information)
  • Page 68: Clearing Security - Forgotten Unlock Code

    Page 68 D Series D5K4/D8K4/D14K Operating Instructions Clearing Security – Forgotten Unlock Code Note that if you see the message “Parameters Locked!” during editing, or parameters can be viewed but not adjusted, then this is due to preset data locking or hiding and is specific to the currently running preset –...
  • Page 69: Looking After Your Amplifier: Maintenance

    Page 69 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Looking After Your Amplifier: Maintenance These maintenance instructions are for use by qualified personnel only. Before any routine maintenance, please ensure that your amplifier is disconnected from the mains supply! The filter behind the air intake apertures on the front of your amplifier should be cleaned or replaced periodically, e.g.
  • Page 70: Performance Of Your Amplifier: Specifications

    Page 70 D Series D5K4/D8K4/D14K Operating Instructions Performance Of Your Amplifier: Specifications Main Specifications Parameter (Units) D5K4-DSP D8K4-DSP D14K4-DSP Output Power per channel [Crest Factor = 4.8] (Watts) 8 Ohms 1000 1400 4 Ohms 1000 2000 2700 2.7 Ohms 1400...
  • Page 71 Page 71 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Power Consumption and Thermal Emissions – D5K4-DSPDSP Mains Load Current Draw Thermal Emissions No Sig’l Light Average Heavy No Sig’l Light Average Heavy 11.7 14.5 Power Consumption and Thermal Emissions – D8K4-DSPDSP...
  • Page 72 Page 72 D Series D5K4/D8K4/D14K Operating Instructions Auxiliary Outputs and DSP Performance Parameter (Units) D5K4-DSP/80/100 DSP Source Impedance – Active Balanced (Ohms) < Minimum Load (Ohms) Maximum Output Level (dBu) ADC, DAC and DSP sample rate (kHz) AES accepted sample rates (kHz)
  • Page 73: Appendix I: Limiters And How To Set Them Correctly

    Page 73 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Appendix I: Limiters and How to Set Them Correctly Your amplifier has two levels of dynamic protection on its outputs – a traditional program limiter, and a peak limiter.
  • Page 74: Peak Limiter

    Page 74 D Series D5K4/D8K4/D14K Operating Instructions Peak Limiter The main limitation with traditional dynamics control is the inability of the processing to react truly instantaneously to the signal. One of the most significant advantages of digital signal processing over analogue is the ability to delay the audio signal precisely and without extensive complex hardware.
  • Page 75 Page 75 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Level For an analogue dynamics processor, the situation is much better. Controlling the gain Threshold for Onset of Gain Control electronically, and not relying on a human sidechain feedback mechanism, it can react much more quickly.
  • Page 76 Page 76 D Series D5K4/D8K4/D14K Operating Instructions The release time can also be automatically set if the RMS limiter has automatic time constants enabled and so are set by the high pass filter frequency for that channel.
  • Page 77: Setting Accurate Limiter Thresholds - Program Limiter

    Page 77 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Setting Accurate Limiter Thresholds – Program Limiter Introduction The limiters built into your amplifier are intended to be used for loudspeaker driver protection, as opposed to amplifier protection. The amplifier has additional limiters which can adapt automatically to both temperature and incoming mains conditions to stay operational and playing music for as long as possible.
  • Page 78: Amplifier Outputs' Program Limiter Lookup Table

    Page 78 D Series D5K4/D8K4/D14K Operating Instructions Amplifier Outputs’ Program Limiter Lookup Table Note that the setting of the auxiliary outputs’ limiters needs to be referenced to the external amplifier’s gain for correct operation. A separate lookup table and explanation is given overleaf.
  • Page 79: Auxiliary Outputs' Program Limiter Lookup Table

    Page 79 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Auxiliary Outputs’ Program Limiter Lookup Table Note that the setting of the amplifier outputs’ limiters does not need referenced to the amplifier’s gain as this is predetermined for the internal power amplifier sections. A separate lookup table and explanation is given on the previous page.
  • Page 80: Setting Accurate Limiter Thresholds - Peak Limiter

    Page 80 D Series D5K4/D8K4/D14K Operating Instructions Setting Accurate Limiter Thresholds – Peak Limiter Assuming the RMS limiter has been set correctly and, just as importantly, attack and release times have been chosen as appropriate to the driver to be protected, the peak limiter is typically set to limit overshoot to 3dB above the RMS limiter threshold.
  • Page 81 Page 81 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions...
  • Page 82: Appendix Ii: Upgrading Firmware And Loading Presets

    Download the Files Go to the Danley website to find the latest firmware or presets – these will be bundled with the “Flash Loader” application that is used to connect and update your amplifier.
  • Page 83: Connect To The Amplifier

    Page 83 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions Connect To The Amplifier Plug in the appropriate cable according to your chosen connection method. Remember – if you are connecting via an USB or RS485, you will need to make sure your amplifier is set to ID1 for the loader to find it.
  • Page 84: Start The Update

    Page 84 D Series D5K4/D8K4/D14K Operating Instructions Start The Update! Just before you press the “Load” button – please close any other applications running on the PC – interruptions in the process could render your amplifier inoperable. Do not disconnect the cable, turn off the power or attempt to close the loader app once loading has begun! Now that you have been warned (!) –...
  • Page 85 Page 85 D Series D5K4, D8K4 and D14K4 DSP Operating Instructions It is now safe to remove the top cover of your amplifier – there are four screws (Torx) along each side and eight on the top of the cover. Be careful not to drop any screws inside! Locate the “Rescue Recovery”...
  • Page 86: Appendix Iii: Speaker Backup Inputs (D5K4 Only)

    Failure could include loss of power, over-temperature protection or accidental remote enabling of standby. To use this feature, the backup amplifier must also be the non-DSP equivalent (DANLEY D5K4- ND). Do NOT attempt to use another manufacturer’s amplifier or any D-series amplifier that is not fitted with this feature.

This manual is also suitable for:

D5k4D8k4D14kD5k4-dspD8k4-dspD14k4-dsp

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