The t.racks ACHAT DSP24, User Manual

Page 1: ...ENGLISH ACHAT DSP24 Digital Speaker Processor USER S MANUAL ...

Page 2: ...ranty will become void if you open the housing and you face the risk of electric shock Do not place objects containing fluids e g flower vases or beer bottles on or near the device Notice regarding power disconnection To disconnect the device from the power source the power plug must be removed from the power socket For this reason the device must be placed in a position where a constant unobstruc...

Page 3: ...essive dryness or humidity ideal conditions are between 35 and 80 This unit is designed to be fitted into a 19 rack Secure the device with screws to the rack When installing into a 19 rack please ensure that warm air can escape from the rack and that there is adequate distance between the individual devices The rear wall of the rack should be opened when operating the devices Cleaning and Maintena...

Page 4: ...4 allow the user to enter the editing menus of the processor s output channels Buttons A and B as well as the 1 2 3 and 4 buttons have double functions dependent on the push and hold time When buttons A and B are pushed and held for more than one second input channels A or B are either muted or un muted The red LED will illuminate when the channel is muted When the MUTE LED is off then the related...

Page 5: ...tilities NAV PM1 Encoder to navigate within the menus PM2 or PM3 Encoder to choose option then ENTER to load it indicates the selected option 3 1 INTERFACE UTILITY Interface Setup Interface Setup Source USB Source RS485 4 UTILITY MENU Security Utilities 4 1 SECURITY UTILITY User Password User Password 4 2 SECURITY UTILITY Enable Password Enable Password Password Enable Password Disable For the det...

Page 6: ... up to 5 filters available 6 12 HiSh 0 0dB Freq 20Hz 20kHz PM2 N A Amp 15 0dB 15 0dB MENU 1 2 3 4 output channel editing access by pushing 1 2 3 4 buttons NAV PM1 Encoder to navigate within the menus NAV PM1 Enc PM2 Enc PM3 Enc to choose values for the parameters no need to confirm the chosen values which are automatically loaded during the encoders use 1 Out X 20 0 Hz Name No cut off HPF 20 0 Hz ...

Page 7: ... VU Meter VU Meter Level PAR1 N A Level Limiter Act Same as PAR2 5 Out X Name Name Name Name Name For editing the device s name refer to the details in chapter Utility menus use 6 Out X Source Name InA Source Source InA PAR1 N A InA Channel A Same as PAR2 InB Channel B InA InB Channel A Channel B 7 Out X Gain Name 0 0 dB Gain Gain 0 0 dB PAR1 N A 12dB 6dB Same as PAR2 NAV PM1 Encoder to navigate w...

Page 8: ...al operations related to the DSP24 start up and general configuration From the System Utilities Sub menu pushing ENTER and then using the NAV PM1 encoder for scrolling will give access to the following pages Input Routing the DSP24 Processor is equipped with 2 analog inputs balanced female XLR and a stereo S PDIF digital input RCA connector This page allows you to select the desired Input type By ...

Page 9: ... time displayed in milliseconds Ramps on changes this page allows you to activate or de activate fading in and fading out ramps on the input output volumes when any parameter changes When connected to the DSP24 by the PC remote control software it is possible to request sudden parameter changes where the difference between the old parameter and the new one can cause unwanted click noises big diffe...

Page 10: ... this page allows you to store a new preset in the DSP24 s memory By pressing the ENTER button and rotating the PM2 or PM3 encoder it is possible to scroll through the previously saved presets and the available empty locations identified as Empty Memory If no user presets are stored the Save a Program screen will show empty memory locations for all 1 16 presets as shown in the example below for lo...

Page 11: ...page and then subsequently overwrite on completion of the previously described storing process Delete a Program this page allows you to delete a preset already stored in the DSP24 memory By pressing the ENTER button and rotating the PM2 or PM3 encoder it is possible to scroll through the previously saved presets and the available empty locations identified as Empty Memory If no user presets are st...

Page 12: ...ecurity sub menu this sub menu allows the user to set a password to limit the unit s functions and controls to those who know the correct password Press ENTER and then use the NAV PM1 to scroll between options User Password from the User Password sub menu Press ENTER to access the User Password page Use encoder PM2 or PM3 to select numbers characters or symbols Move the cursor position with encode...

Page 13: ...lled through by rotating the NAV PM1 encoder clockwise and counter clockwise For parameter editing it is necessary to press ENTER and then an arrow will appear on the left of the screen Then use the PM2 and PM3 encoders for selecting and setting the parameter values On those parameters that have three independent values you will also need to use the PAR1 encoder e g filter parameter settings Note ...

Page 14: ...filter from the above setting with the GAIN 0 0dB if the GAIN is not 0 0dB it is necessary to set it at 0 0dB using the PM3 encoder rotate the PM2 counter clockwise Once BW reaches the 0 05 value at the next step of the PM2 counter clockwise rotation the selection of the shelving filters will be entered Still rotating the PM2 counter clockwise the shelving filters and their order will be selectabl...

Page 15: ... the PM2 encoder and the gain the PM3 encoder Hi Cut Frequency the selectable frequency range is from 20Hz to 20kHz in steps of 1 24 of an octave and can be adjusted by rotating the NAV PM1 encoder Low Shelving Order the selectable low shelving filter range can be selected between the 1st Lo 1st and the 2nd Lo 2nd one Gain the selectable range of gain is from 15dB to 15dB in steps of 0 5 dB and ca...

Page 16: ...b menu pages can now be scrolled through by rotating clockwise and counter clockwise the NAV PM1 encoder For parameter editing it is necessary to press ENTER Then an arrow will appear on the left of the screen Then use the PM2 and PM3 encoders for selecting and setting the parameter values On some parameters that have three independent values you will also need to use the NAV PM1 encoder for examp...

Page 17: ...he selectable range of the limiters threshold is from 20dB limiter not active to 10 0dB in steps of 0 2 dB and can be adjusted by rotating the PM3 encoder Note 1 once the desired options have been selected using the 3 encoders they are automatically saved as current and stored in the DSP24 system status once leaving the page Note 2 to exit this page push the ESC button Polarity from this page it i...

Page 18: ... s high cut frequency and the filters type and order The high cut frequency of the low pass filter can be edited using the PM2 encoder and the filters type and order can be edited by using the PM3 encoder High cut frequency the selectable frequency range is from 20Hz to 20kHz in steps of 1 24 of an octave and can be adjusted by rotating the PM2 encoder Low pass type and order this page allows you ...

Page 19: ... 2nd order high shelving 12HiSh on the screen Once the desired shelving filter is selected the PM3 can then be used to select the desired GAIN and when the GAIN is set at a value different from 0 0dB then the filter type cannot be changed until this GAIN is returned to 0 0dB BELL filter As an example if you want to set a bell filter within EQ 1 then the BW has to be set at a desired value of say 1...

Page 20: ... the resulting signal attenuation Limiter Act Delay from this page it is possible to set the output channels delay time from 000 0000ms up to 848 9984ms by steps of 1ms or 20 8µs To set the delay time press ENTER An arrow will appear on the left of the screen Then use the PM2 encoder to set the delay time in steps of 1ms and the PM3 for setting the fine delay time in steps of 20 8 microseconds The...

Page 21: ... to begin editing an input channel or vice versa Factory reset In the event of the password being lost or any other reason the user may require the unit to be reset to the original factory settings a Factory Reset that will clear all settings of the DSP24 and return the device to the original factory setting is available to the user Note Continuing with this process will mean the DSP24 will re ini...

Page 22: ...s NOT YET INITIALIZED not yet created so not available the micro controller will notify that to the user sending back the following frame RX STX ID_M ID_N CMD D0 D1 D2 D3 D4 D5 D6 D7 ETX FOH C1H XX 1BH FFH 00H 00H 00H 00H 00H 00H 00H F7H Input gain and output volume control UPDATE GAINS PHASE CMD 01H A The user has to send the following command including the value to be assigned to Vol for modifyi...

Page 23: ...essing DSP SAM3716 24bits data x 96 bits coeff A D Converters AKM5392 24bits D A Converters AKM4396 24bits Sampling frequency 48kHz S PDIF Stereo Digital Input 32kHz 44 1kHz and 48kHz sources accepted S N 110dBA THD N 0 005 frequency Response Bypass 20Hz 20kHz 1 dB Power Supply Switching Power Supply Remote Control USB RS485 Our products are subject to a process of continual further development Th...

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