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WS -P48 User Manual

4 in-8 out speaker management system

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4 In - 8 Out Speaker Management System
WS-P48
G-ACOUSTIC
WS-P48
DC48AUDIODSP
4 In - 8 Out Speaker Management System

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Summary of Contents for WS WS-P48

  • Page 1 4 In - 8 Out Speaker Management System WS-P48 G-ACOUSTIC WS-P48 DC48AUDIODSP 4 In - 8 Out Speaker Management System...
  • Page 2 4 In - 8 Out Speaker Management System Introduction WS-P48 is the flagship of Marani’ s digital speaker management systems. Designed for maximum versatility, it provides all the processing and control necessary for both live and fixed installation use. It offers 4 analog inputs, 8 analog outputs and 2 digital S/PDIF inputs, managed by a powerful DSP Engine, in addition to high performance 24 Bit AD/DA converters.
  • Page 3 The WS-P48 will start with a completely “flat” condition of the all processes. After the initialization, the WS-P48 will show on the LCD that no Program/Preset has been created yet and that the program/preset loaded is an “empty” one, which means “flat” condition for the all available processes.
  • Page 4 The WS-P48 is equipped with 3 Relative Encoders + Push Button function, “NAV/PM1”, “PM2” and “PM3”, where the Push Button function is associated to the “ENTER”, “ESC” and “UTILITY” controls. These encoders allow you to navigate the user interface and edit sections of the processor. They allow the user to navigate within the screen for the selection of sub-menus, pages and parameters and to select the values to be assigned during the editing operations.
  • Page 5 MENU “UTILITY MENU” [Access by pushing the “UTILITY” button] NAV/PM1 Encoder PM2 or PM3 Encoder [to navigate between menus] [to chose option, then ENTER to load it; (*) indicates the selected option] 1 UTILITY MENU:..<< System Utilities >> ENTER SYSTEM UTILITY: Delay Units <<...
  • Page 6 MENU “Input A/B/C/D” Input Channels Editing [Access by pushing the “A/B/C/D” buttons] NAV/PM1 Encoder NAV/PM1 Enc. PM2 Enc. PM3 Enc. [to navigate between menus] [to chose values for the parameters, no need to confirm the chosen values, which are automatically loaded during the encoders use] 1.
  • Page 7 MENU “1/2/3/4/5/6/7/8 Output Channels Editing” [Access by pushing the “1/2/3/4/5/6/7/8” buttons] NAV/PM1 Encoder NAV/PM1 Enc. PM2 Enc. PM3 Enc. [to navigate between menus] [to chose values for the parameters, no need to confirm the chosen values, which are automatically loaded during the encoders use] [Name] 1.
  • Page 8 2.1 Output [Name] -> YF = 20.0 Hz ENTER 2.1a. If selected a filter from Buttw_1st up to Bessel_4th, then the filter's Cutting Frequency can be set as follow: Output [Name] [Thousands Editor] [Hundreds Editor] [Units Editor] -> Edit Freq = 250Hz [Freq.] 1000Hz [Freq.]...
  • Page 9 4. Output [Name] Vu-Meter Level Vu-Meter = ENTER Level -> Vu-Meter = PM1 N/A Level Same as PM2 Limiter Act. RMS Cmp Act. 5. Output [Name] Name [Name] Name = ENTER (For Editing the Device's Name, refer to the Details on the“Utility Menus Use” Section) ->...
  • Page 10: Utility Menu

    The following screen shows the selected delay measurement is Time (milliseconds) Delay Units Unit : Time (ms) − Software Version: this page allows you to confirm the Software Version running on the WS-P48: SYSTEM UTILITY Software Version The correct Software Version is “V1.03”...
  • Page 11 By using the “PM2” or “PM3” encoder it is possible to scroll through the stored presets. Once the desired preset appears on the screen select it by pressing the “ENTER” button and this will force the WS-P48 to begin to load this selected preset and the following transitory screen will appear: Loading New Program ..
  • Page 12: Program Utility

    [Enter] to Overwrite Stage 1 If you wish to proceed press “ENTER” again and the WS-P48 will go ahead with the “Set Program Name” page and the subsequent overwrite on completion of the previously described storing process.. Note: at any time it is possible to quit the storing action by pressing the “ESC” button.
  • Page 13 For example, if we want to delete the preset 10, “Stage 1 2x2”, the screen will be the following: [ENTER] to Delete. Stage 1 2x2 Confirming the deletion by pressing “ENTER” again, will force the WS-P48 to erase the selected preset and the following transitory screen will appear: Erasing Xover Memory..
  • Page 14 Remote ID Num = 01 Security Sub-menu – this sub-menu allows the User to set the parameters shown, lock the WS-P48 and set a Password therefore limiting the unit's functions and controls to those who have access to the appropriate Password. UTILITY MENU Security Utilities Press ENTER and then use the NAV/PM1 to scroll between options.
  • Page 15 “Password Enable/Disable, explained in the following paragraph Note: originally the WS-P48 is initialized with a default Password which value is “000000”, value that can be anytime reset with a “Factory Reset” (see “Factory Reset” procedure) −...
  • Page 16 “User Password” option. To regain access to the full operation of the WS-P48 ENTER to the “User Password” screen and press the UTILITY Button to access the following screen to enable the correct password to be entered:...
  • Page 17 Note1: once the desired options have been selected using the 3 encoders, they are automatically saved as current and stored in the WS-P48 system status once leaving the page. Note2: to exit this page, push the “ESC” button. Audio Signal Input (A/B/C/D) Noise Gate page –...
  • Page 18 The amount of canceled band is decided by the Q value More, the WS-P48 Is giving the possibility to “Bypass” any single filter of the 5 available in the Equalizer section; Once in the editing page of the single filter, a “Byp” field is available for making the single filter active or not...
  • Page 19 filter it is not set in Bypass mode. Depending from the selected filter, the related parameters will be available for editing Peaking_Eq Filter: Peaking filters are at constant Q, so with Q not depending from the selected Gain value If we selected a Peaking_Eq filter within EQ-1, then the Q has to be set at a desired value of say 1.00 using the PM3 encoder, the GAIN at say +3dB using the PM2 encoder and the center Frequency at say 1.00KHz with the NAV/PM1 encoder;...
  • Page 20 Once in the Lo-Shelv_Q Filter's edit screen, all the filter's parameters can be modified using the “NAV/PM1”, “PM2” and “PM3” encoders for editing the Filter's High Cut Frequency, Gain and Q: “ High Cut Frequency ”: the selectable frequencies range is from 20Hz to 20kHz in steps of 1Hz and can be adjusted by rotating the “NAV/PM1”...
  • Page 21 HPF sub-menu [Standard Filters] – from the sub-menu page, using the PM2 encoder, it is possible to set the HPF in Bypass or as one of the 8 Standard Filters: Buttw_1st, Buttw_2nd, LRiley_2nd, Bessel_2nd, Buttw_3rd, Buttw_4th, LRiley_4th, Bessel_4th. The following is an example of a HPF sub-menu screen with the filter set at 400Hz as 24dB Linkwitz/Riley on Output1...
  • Page 22 Frequency “fine tuning” being the Frequency increment/decrement done by 1Hz steps. For a quick Low Cut Frequency setting, need to press the ENTER Button for accessing the Low Cut Frequency Fast Setting Page. Out-1 High ->Edit Freq = 400Hz “ Low Cut Frequency ”: the selectable frequencies range is from 20Hz to 20kHz.
  • Page 23 Hz and the PM3 by steps of one Hz. Note1: once the desired options have been selected using the 2 encoders, they are automatically saved as current and stored in the WS-P48 system status once leaving the page. Note2: to exit this page, push the “ESC” button.
  • Page 24 Path” section [Peaking_Eq, Hi-Shelv_Q, Lo-Shelv_Q,] More, the WS-P48 Is giving the possibility to “Bypass” any single filter of the 5 available in the Equalizer section; Once in the editing page of the single filter, a “Byp” field is available for making the single filter active or not...
  • Page 25 Hz and the PM3 by steps of one Hz. Note1: once the desired options have been selected using the 3 encoders, they are automatically saved as current and stored in the WS-P48 system status once leaving the page. Note2: to exit this page, push the “ESC” button.
  • Page 26 Out-1 Name Vu-Meter -> Vu-Meter = RMS Cmp When the Peak Limiter's activity is selected, the LED meters will show, from top down, the activity of the Peak Limiter on the output Out-1 Name Vu-Meter -> Vu-Meter = Limiter Act Name page –...
  • Page 27 “PM3” encoder. Note: The RMS Compressor Threshold is defined in dBu, due to the fact that with both, Sinusoid and Squared wave testing signals, the WS-P48 compressed output dBu (RMS) Level is the same and matching the selected one.
  • Page 28 Note: The Peak limiter Threshold is defined in Vp, due to the fact that with both, Sinusoid and Squared wave testing signals, the WS-P48 Peak Limited output Vp (Peak-Peak) Level is the same and matching the selected one. Note1: once the desired options have been selected using the 3 encoders, they are automatically saved as current and stored in the WS-P48 system status once leaving the page.
  • Page 29 Input Channels and output Channels LINK Function The WS-P48 is able to perform a unique LINK MODE between Input Channels as well as a link between Output Channels to enable quick and immediate editing (you cannot link output to input channels).
  • Page 30 Then press the Edit button of Output Channels 2/4, turning on their related “Blue” LED’s. Now all parameters edited on Output Channel 1, will also be applied to channels 2 and 4. If we want to remove one of the linked channels from the Link, press the related Edit button. Exiting the editing of the Master channel during a Link session will automatically terminate that session.
  • Page 31 GND of the processor could create GND loops or generate GND noises. In this case, the switch on the position “Lift” will leave the cable GND not connected to the chassis of the WS-P48...
  • Page 32 USB Remote Control protocol for Presets Changing and Gain/Volume controls The following is the HEX Code for controlling the WS-P48 recall presets and master volume control: Preset Changing: CMD_RECALL_PRESET: CMD=1BH A. The User has to send the following Command, including the number of the preset to load on the unit:...
  • Page 33 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 modifying the Input Gain (Chn = 0, 1, 2, 3) or the Output Volume (Chn = 2, 3, 4, 5, 6, 7, 8, 9). Also the Output signal Phase can be modified: ID_M ID_N...
  • Page 34 Product Dimension WS-P48 Technical Specifications The WS-P48 Digital Speaker Processor is based on a powerful analog and digital Dual DSP platforms having the following specifications Analog Input Signal: ChA/ChB/ChC/ChD Bal. Female XLR Maximum Input Level: +20dBu Analog Output Signal: Ch1/Ch2/Ch3/Ch4/Ch5/Ch6/Ch7/Ch8 Bal.