User Manual
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1. Mom a m m it User Guide version 1 5 Page 19 of 29 LIGNA e Knob B Slope 6 to 12dB octave in 1dB steps e Knob C Gain 4 15dB in 0 2dB steps The frequency is specified as point where the filter deviates by 3dB from the gain value Parametric filters e Knob A Centre Frequency 10 0Hz to 25 6kHz in variable steps Knob B Width display selectable Q or BW Bandwidth BW adjustable from 0 05 to 5 octaves in variable steps Q adjustable from 14 2 to 0 2 in variable steps e Knob C Gain 15dB in 0 2dB steps Output Channels Gain and Polarity e Knob A Gain adjustable in 0 2dB steps from 80 dB to 20dB e Knob B Polarity selectable normal or reversed with reference to other outputs Te SS User Guide version 1 5 Page 20 of 29 LIGNA Delay e Knob A Adjustable in variable steps from 0 to 80ms As for input delay velocity sensitive Parameter Knobs provide finer adjustment at low levels and rapid selection of higher values High and Low Pass Filters e Knob A Frequency lt lt out 10 0Hz to 25 6kHz out gt gt e Knob B high pass filter type Filter type is selectable from Butterworth Bessel Linkwitz Riley and Hardman Filter slopes of up to 8th order or 48dB octave are provided Not all filter types are available in all slopes For example 18dB octave Linkwitz Riley filters do not exist The Ha2. EQ and Filter Response Graphs Butterworth N 8 Ke o G a 9 G 100 140 1 10 Frequency Hz 6dB Oct 12dB Oct 18dB Oct 24dB Oct 48dB Oct Linkwitz Rilev 6 0 a 76 Ko g 12 E 9 18 24 30 736 100 1 10 1107 Frequency Hz 12dB Oct 24dB Oct 48dB Oct User Guide version 1 5 Page 26 of 29 Bessel 6 0 a 76 E 12 5 718 G 24 730 ES 3 4 100 1 10 1 10 Frequency Hz 12dB Oct 24dB Oct Hardman 6 0 a 76 o 12 5 718 G 24 730 36 ATTN N 100 1 10 UR Freguencv Hz 4th Order 8th Order User Guide version 1 5 Page 27 of 29 LIiG WA Shelving EQ Magnitude dB 100 py Frequency Hz Low shelf varying Gain High shelf varying Slope Parametric EQ Magnitude dB 100 1 10 H Frequency Hz Varying Gain Varying Bandwidth Ham NON SE SSE User Guide version 1 5 Page 28 of 29 LIGNA Technical Specification General Input IMpedanCe s usaruenenruinenrneniu Maximum Input level sss Output I mpedance Maximum Output Level Sample Rate sssssssss Bit Depth ui ita l ia Tip Frequency RESPONSE cece ene ene Dynamic Range csse Serial COMMS Data sees Processing Gaia il Karti educ er ta Output Ch S
3. LIGNA Thanks and Unpacking Thank you for choosing a Ligwa M62DSP management system for your application Please spare a little time to study the contents of this manual so that you obtain the best possible performance from this unit All Ligwa products are carefully engineered for world class performance and reliability If you would like further information about this or any other Ligwa product please contact us We look forward to helping you in the near future Unpacking the Ligwa M62DSP processor After unpacking the unit please check carefully for damage If damage is found please notify the carrier concerned at once You the consignee must instigate any claim Please retain all packaging in case of future re shipment User Guide version 1 5 Page 6 of 29 LIGNA I ntroduction and Key Features Introduction The Ligwa M62DSP management systems represent the current state of the art Taking advantages of the latest advances in analogue to digital conversion and digital signal processing technologies the units achieve performance levels that have only recently been made possible Key Features e Ligwa minimal signal path design e Sonicallv superb ADC DAC combination a carefully matched pairing of the best devices from Burr Brown and Wolfson e Newly released family of Analogue Devices SHARC DSP e Extended bandwidth 96 kHz sampling frequency provides for a nominally flat response to 40 kHz e Parameter kn
4. 20dB Delay e Knob A Delay adjustable in variable steps from 0 to 400ms The delay parameter is adjustable in fine steps at low values the adjustment becomes progressively coarser as the value increases The velocity sensitive Parameter Knobs therefore provide accurate setting of driver offset delays typically below 10ms and rapid setting of longer system alignment delays User Guide version 1 5 Page 18 of 29 LIGNA High Pass Filter e Knob A Frequency out off 10 0Hz to 25 6kHz in variable steps e Knob B high pass filter type System high pass filtering is provided for the input signal This is the preferred location for high pass filtering as it affects all outputs and can therefore improve inter band phase relationships Filter type is selectable from Butterworth Bessel Linkwitz Riley and Hardman Filter slopes of up to 4th order or 24dB octave are provided Not all filter types are available in all slopes For example 18dB octave Linkwitz Riley filters do not exist The Hardman type filter is always described by its order as the filter becomes progressively steeper rather than following a linear slope so a dB octave description is not accurate Parametric Equalisation Eight sections of equalisation are provided two shelving filters and six fully variable parametric sections High and Low shelving filters e Knob A Frequency 10 0Hz to 25 6kHz in variable steps H Z
5. Guide version 1 5 Page 11 of 29 LIGNA being that the amplifiers the processor is driving should be responsible for the grounding of their input cable shields Communications Port Connector Ligwa M62 processor may be controlled entirely from another controller typically a Personal Computer running an application that is compliant with the ObCom standard Connection will normally be made to the controller via this serial port connector This port is also used for updating the firmware in the unit Note that the communications port is NOT disabled when the front panel is made secure using the secure button User Guide version 1 5 Page 12 of 29 LIGWE Operation Starting up The unit will energise as soon as power is applied to the IEC inlet there is no power switch During the start up process the firmware application model number and version numbers are displaved and the outputs are muted until the unit has completed its internal checks Once the start up routines are complete and the unit is readv to pass audio The DSP signal path will be restored to the current settings when it was last powered down and the audio signal is graduallv ramped up to its correct level Selecting a Factorv Preset The Ligwa M62 processors have a librarv of Factorv Presets designed to suit a range of applications Factorv Presets contain some parameters that are fixed and hidden from view the remainder of the DSP parameters are available
6. When activated this will disable all the front panel controls so they cannot affect the signal HC C ESSE User Guide version 1 5 Page 10 of 29 LIGNA path making the unit secure against tampering When in secure mode the indicators still operate normally Note that the communications port is still active in secure mode Rear Panel Power Inlet The Ligwa M62DSP unit should be connected to a suitable mains electricity supply using the cable supplied The processor has a switch mode power supply that is capable of operating with a nominal mains voltage of 85V to 240V 50 60Hz without re configuration Network Expansion Port Where a future network card can be fitted Audio Input Connectors All audio connections are fully balanced and wired pin 1 ground pin 2 hot amp pin 3 cold The two inputs have pin 1 connected directly to the chassis and feed the signal processing chains If an unbalanced source is used a connection should be made between the pin 3 cold signal and the ground connection of the unbalanced source Audio Output Connectors The processed outputs are impedance balanced and wired pin 1 ground pin 2 hot and pin 3 cold An unbalanced input may be driven by connecting pin 3 cold signal to the ground connection of the unbalanced destination input Note that output pin 1 s are ground lifted at audio frequencies but connected to ground at RF for good EMC performance The intention SS Se a SE User
7. for user manipulation The number and tvpe of hidden parameters is dependant on the Factorv Preset tvpicallv crossover frequencies output delav and some EQ s are hidden those settings that are a function of the loudspeaker cabinet design and should not require adjustment for different applications To recall a Factorv Preset for a particular cabinet or svstem press Recall and use the left hand parameter knob A to scroll through the available Factorv Preset locations as indicated bv a box svmbol after the preset number Once the appropriate preset has been selected press recall again at which point vou will be asked to confirm the action bv pressing recall for a third time This is to guard against accidental recall of presets Factorv Presets are locked so thev cannot be over written The user can however store an edited version of a Factorv Preset in anv free preset location Details of all the Factorv Presets including output designations can be found in Appendix A Creating a Crossover In addition to the Factory Presets the unit has two further Base Presets mono and stereo These Base Presets are stored in locations 1 and 2 respectivelv thev can be used to develop settings for anv loudspeaker combination and are recalled in the same wav as the Factorv 7 TSI A User Guide version 1 5 Page 13 of 29 LIGNA Presets described above These presets are also locked but the user can name and store their own edited
8. of 29 LIGNA I mportant Safety I nformation Please read carefully and keep the following instructions and safety information Heed all warnings and follow all instructions e Do not remove covers There are no user serviceable parts inside please refer servicing to qualified service personnel e This equipment must be earthed e Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus e Only use attachments accessories specified by the manufacturer e Servicing is required when the apparatus has been damaged in any way such as the power supply cord or plug is damaged liquid has been spilled or objects have fallen into he apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped Regulatory Compliance This product complies with both the EMC Directive 89 336 EEC and the Low Voltage Directive 73 23 EEC as issued by the Commission of the European Community Compliance with these directives implies conformity with the following European standards e EN60065 Product safety e EN55103 1 Electromagnetic Interference Emission e EN55103 2 Electromagnetic Susceptibility Immunity This product is intended for operation in the E2 commercial amp light industrial and E3 urban outdoors Electromagnetic Environments E e e Ht User Guide version 1 5 Page 5 of 29
9. A CHANNEL Pressing the edit navigation buttons gives access to the various pages of parameters available for each channel The currently selected page is shown in the bottom left hand corner of the display this is omitted on some pages where the function is obvious The screen shows up to three normally related parameters for a given part of the processing functions on a given channel The edit buttons allow you to scroll in either direction through the different processing pages for a given Channel When you go past the last page you will be returned to the default page The channel buttons allow you to scroll in either direction through the input and output channels whilst trying to maintain the currently viewed processing block If the channel you scroll to does not have the currently viewed processing block the next one will be shown instead NB When the unit powers up the settings will be the same as those when the unit was last switched off Presets The device contains a total of forty five user and Factory Presets The user cannot overwrite the basic mono basic stereo or Factory Preset programs Preset Recall To select an existing preset press the Recall Button so the indicator above it illuminates Turn parameter knob A until the required preset number is shown on the display Factory Presets are indicated by a box symbol appearing after the preset number Press the Recall Button again to activate the
10. EAK EEEE ENRERE 5 Regulatory Compliance PER EE TOO TE 5 Thanks ana Unpacking PM ar Ei 6 Introduction and Key Features oer i ainiai iakin Ea bnt e pii dica n E Kem E M xa CER EG 7 lavgere rusol TTC 7 THE Ws aci e 8 Front Panel T 9 Input Signal Moles io cT 9 Preset Store and Recall TC d w 9 Sua elis Fin M 9 Edit Select BUTTONS ah 10 joa coc M AE 10 Parameter ple c EN 10 Output Signal Limiter NGA iuis iiuiaes rescindi ra rho cSoaassnatadiaaversdgatuvetesseansdansassacaadessenes 10 Mute Buttons and Status LEDS 10 Secure Button on the rear iue ct Erba eeu reve dra Fade san rta eE aD eU RUN EUH lr i 10 Rear RR UU Tm LI uoa e S LI Network Expansion POM 2 occi i rre a Ku XE rw CRGO SCR IE BEC Ka s gu ag eR RD e EN RUPEE 11 Audio Input COD IB EDS scactcacsysesentasasevectsapreciebadusctwonesentel SD ibda kient sba dieka u biha iilddabibetbiiiia REEL LI Audio Output eg uio RT 11 Communications Port CODTIBCEOT 2o isis vei qpe pepe Vv bo ER HK a Er rte pEREN EE pupa VPE EY REV EE EVRE 12 Operat
11. J LIGWA LI GWA M42 M62DSP Management System Manual Draft User Guide Ligwa M42 M62DSP Management System Version 1 5 LIiG WV ZA Quick Reference Guide ovo m O canons wA Ox o OUO OS 6 E d aa Q QD O Get MA feds fae fees tea Displav The LCD displavs preset and parameter information The default screen is shown after start up and displavs the number and name of the current preset on the lower line of text When navigating around the adjustable parameters other information is shown Channel Select Buttons The currentiv selected input or output channel is shown in the top left corner of the displav Pressing the channel select buttons scrolls through the available inputs and outputs If operating stereo linked the channel pair is shown For example CH A B means both input A and B parameters Edit Select Buttons The name of the edit parameter page is displaved in the bottom left portion of the LCD Pressing the edit select buttons moves through the available parameter pages for the current input or output Parameter Knobs Up to three parameters are shown on the displav The parameter name is shown with its current value below Where appropriate parameters are grouped according to function For example the parametric equalisation page shows centre frequency width and gain Turning a parameter knob clockwise will increase the value of a parameter turning anti clockwise will decrease it Turning a knob ra
12. OUrCe semm mememememe mnn HP filter frequencv ss semm mmemememen LP filter frequencv ss sees LP HP filter type sse nen ewes Delay a iii iii i lg P a A remix wre aa EQ frequencv semm EQ galm ia A ae raa Connectors Audio inputs essem Audio outputs e sisse Serial comms 2 5 5 eco ciue amant Network COmMS semm mememe me mem MAIN Si ia l i b Mains POWET 0ssemememememememememzenni Consumption scs Dimensions Lq memmemzmememememzne na Mb l e o L Rx User Guide version 1 5 2 gt 10k Ohm Electronically balanced 20dBu four M42 or six M62 lt 100 Ohm ground balanced 20dBu into 6000hm load 96kHz 24 bit Eo 10Hz to 40kHz 4 3dB filters disabled 20Hz to 20kHz 4 0 5dB filters disabled 0 0195 10dBu 20Hz to 20kHz 30kHz bandwidth gt 112dB A weighted 22kHz bandwidth gt 109dB un weighted 22kHz bandwidth 38 4kbaud format 8 data 1 stop no parity 20dB to 80dB and mute 0 2dB steps Input A Input B and SUM Off 10Hz to 25 4kHz 1 36 octave steps 10Hz to 25 4kHz and off 1 36 octave steps 12 18 amp 24dB octave Bessel and Butterworth 12 24 and 48dB octave Linkwitz Riley 4 or 8 order Hardman Input 400ms output 80ms High performance limiter adjustable threshold in 0 2dB steps automatic time constants 10Hz to 25kHz 1 36 octave steps 15dB to 15dB 0 2dB steps 5 0 to 0 1 oc
13. Preset Pressing any other button will cancel the operation SS SSE EEE User Guide version 1 5 Page 15 of 29 LIGNA SELECT PRESET RECALL O TO RECALL RECALL O Users can develop their own Preset based on one of the Basic or Factory Presets stored within the device Once a basic or user Preset has been recalled a user has complete freedom to adjust any or all of the parameters Factory Presets can be used as the basis for user Presets but they have some parameters that are predefined as a function of the loudspeaker system These parameters are hidden from the user as they should be constant regardless of application Preset Store To store the current Preset in a user location press the Preset Store Button so the indicator above it illuminates Turn the first parameter knob until the required Preset location number is show on the display A Preset name of up to 12 characters in length can be entered using parameter knobs B and C Pressing the Store Button again completes the process and stores the Preset As with Preset Recall pressing any other button cancels the operation SELECT STORE STORE O LOCATION STORE O B The user can overwrite non protected Presets oniv if an attempt is made to save a Preset in a location alreadv occupied bv a basic or Factorv Preset a LOCKED PRESET message is displaved NAME PRESET User Guide version 1 5 Page 16 of 29 LIGNA DSP Processing layout Input DSP b
14. ion MR EET E TT 13 Starting D Met O 13 Selecting a Factory PreSet xii isir pi in l A 13 Creating peu cct MNT Mietet o TOL 13 Navigation and Viewing Parameters sssssseeeennnnnee emen nennen nn nnne nnne nn nnn nnn nnns 14 NaVigatlON t P 14 dico 15 Preset i e m P 15 Preset Store ia panel ems r a EAE N O TEE EEA ENA 16 Buigiguee c udo 17 Input DSP block di ROAD dad Er cbe ii 17 Output DSP block digra c o 0 0 1 05 00S 17 Stereo enel dig METEO QT 17 Dm e m a A L HJV amp Ao a a A sn User Guide version 1 5 Page 3 of 29 LIGWE DSP PrOCESSING M 18 input C Daniels ensed ues srestesetupesMtorediscen ati M UNDO Dao roe SEU iret inse Leben D aseo mi D jedd ima 18 MOUTON CC Mgt L K 20 Mrs 24 Factory Presets RR T EE ED E E 25 EQ and Filter Response Graphs TETTE COUTE 26 Technical Spe ificatibit eT 29 ila l TEM 29 POS SIN Ge cies a aa a a A A A 29 oalicTan cR 29 a User Guide version 1 5 Page 4
15. lock diagram 4 Order Low High HPF Shelf EQ Shelf EQ NB Channel B processing is identical to Channel A but for clarity it is not shown Output DSP block diagram 8 Order 8 Order HPF LPF Routing Stereo Mono Formats There is only one standard layout of the processing blocks but flexible routing and control High T Low Six Band Shelf EQ PEQ linking allows this layout to be adapted to a wide variety of applications There are two Formats Mono or Stereo With the Mono format all outputs have unique parameter settings and all outputs are identical in terms of processing functions and routing capability This is the most flexible Format Stereo format pairs the inputs and outputs for stereo operation the parameters of each member of the pair being identical The routing of inputs to outputs is fixed This format is intended for symmetrical stereo operation eliminating the need to make identical parameter adjustments for each channel The channel pairing is e Left and Right Inputs e Outputs 1 routed from L input and 3 routed from R input 1 and 4 for HK26 e Outputs 2 routed from L input and 4 routed from R input 2 and 5 for HK26 e Outputs 3 routed from L input and 6 routed from R input HK26 only SS Sa S SE User Guide version 1 5 Page 17 of 29 LIGNA DSP processing Input Channels Gain e Knob A Gain adjustable in 0 2dB steps from 80 dB to
16. ob and LCD provide a rapid user friendly control interface 3 L a SES User Guide version 1 5 Page 7 of 29 LIGNA The User Guide This user manual gives a progressively more detailed description of the functions of the Ligwa management systems A single page quick reference guide is provided for those users who are experienced with this type of equipment and just need to know how to drive the front panel A detailed explanation of the front and rear panel controls and indicators is contained in the next section The final section describes each individual function or feature with annotated images explaining its use Where appropriate the LCD is shown to further elaborate on the units operation To complete the manual a reference section is included describing the technical performance of the device complete with graphs of filter responses and details of the Factory Presets and their configuration User Guide version 1 5 Page 8 of 29 LIGNA Front Panel 000 Oi mart ar ji cuit cuit Fr Input Signal Indicators A set of three pairs of LEDs indicate signal present 4 4dBu and input clip for each channel The signal present LEDs operate at approximately 40 dBu giving a useful indication of even relatively low input signal levels The 44 dBu LEDs are intended to show nominal operating level and can also be useful for setting system gain structure Clip LEDs warn the user
17. of input overload and operate at 19 dBu Preset Store and Recall These controls provide access to the 45 presets stored within the device Pressing the store button allows the user to name a preset and choose which memory location it will be held in Pressing store button again completes the process The Recall function operates in a similar way pressing the recall button allows the user to select which preset they require pressing the button for a second time then confirming recalls the new DSP settings Note that presets cannot be stored or recalled when Secure mode is activated Channel Select Buttons The currently selected channel is displayed on the top left hand corner of the LCD Pressing the channel buttons scrolls through the available input and output channels and finally through the utility functions and back to the default screen If operating a stereo linked preset the channel name will indicate the channel pairing For example A B means both input A and B eC LA Ql User Guide version 1 5 Page 9 of 29 LIGWE parameters The name of the output will be shown brieflv at the top of the displav when stepping onto an output Edit Select Buttons The currentiv selected edit parameter page is displaved on the bottom left corner of the LCD Pressing the edit select buttons m
18. ormat Presets E e e User Guide version 1 5 Page 23 of 29 LIGNA Utilities Utility functions Three utility functions are provided to adjust screen contrast the display units used for parametric equalisation bandwidth and switch between stereo and mono mode The device automatically adjusts for the variations in display contrast as the temperature of the LCD changes The screen contrast utility control sets the base contrast of the screen and also allows optimization for a given viewing angle Parametric equalisation width parameters can be displayed in either Q or bandwidth expressed in octaves Care should be taken when swapping between mono and stereo mode as the parameter set for the left hand channels will be copied to the right hand side overwriting those settings This is not reversible and could represent quite a significant and potentially damaging change to the processing Sa ee User Guide version 1 5 Page 24 of 29 LIiG WW X Factory Presets Basic default programs 1 basic stereo 100 100 1K 1K gt lt 100 100 1K 1K gt 2 basic mono full range full range full range full range full range full range User Guide version 1 5 Page 25 of 29 LIGNA
19. oves through the available parameters for the current input or output Text Displav Preset channel parameter and status information is shown on the 2x 24 character text displav In most screens the currentiv selected channel is displaved on the upper line and the edit parameter on the lower line To simplifv the displav and enhance securitv some parameters or parameter pages are omitted when not relevant Parameter Knobs Three velocitv sensitive parameter knobs are used to adjust parameters shown on the displav Up to three parameters at a time are displaved on the screen The parameter name is shown above the parameter value in each of the three screen sections The parameter knobs have a fixed association with the screen sections the rightmost parameter knob adjusts the rightmost parameter and so on Output Signal Limiter Indication Two LEDs are provided for each output channel These show the signal level relative to the limiter threshold The yellow LED will light when the signal is 6dB below the threshold and the red warning LED will light when the limiter threshold is reached Mute Buttons and Status LEDs Each output has a mute button and associated mute status LED Pressing the button toggles the mute on and off Note that the mute buttons do not function when the Secure mode is activated Secure Button on the rear A momentary button is fitted behind the rear panel between the output XLRs and the RS232 port
20. pidly will cause the action to accelerate so the value changes more rapidly Mute Buttons The LEDs next to the mute buttons indicate their current status Pressing a mute button toggles between the mute on and off Store Button The unit has 45 preset locations To store a preset in a location press the store button and use the parameter knobs to select the preset location and name the preset Pressing the store button again completes the task Pressing any button other than store during the process cancels the procedure Recall Button To recall a preset press the recall button and use parameter knob A to select the required preset Pressing the recall button again will activate the preset You will then be asked to confirm by pressing recall once more As with the store function pressing any button other will cancel the process User Guide version 1 5 Page 2 of 29 LIGNA Q ick Reference QUITS 2 DISD A MPA 2 Channel Select Butt c EKEREN 2 Edit Select BHEEOPS i rorieiog rometsinereniatiibnzza b giucotatansantatesponarcsigpene sink tea uta cM nt AEE TEE i 2 Parameter DD i ea ra Anita AR Made i aa Set Er tai PU URSUS 2 Li 1 rds Pure p icr ie BA 2 Store b rej RR 2 Recall BuUttONees ei ERR ERR EE T TT 2 important Safety liNfORN AON Pc iin e iieiea ara NE aE EEEE EAEE EN
21. rdman type filter is always described by its order as the filter becomes progressively steeper rather than following a linear slope so a dB octave description is not accurate A 87 User Guide version 1 5 Page 21 of 29 LIGNA Parametric Equalisation Eight sections of equalisation are provided in a similar format to the input channel equalisation two shelving filters and six parametric e Knob A Frequency 10 0Hz to 25 6kHz in variable steps e Knob B Slope 6 to 12dB octave in 1dB steps e Knob C Gain 15dB in 0 2dB steps The frequency is specified as point where the filter deviates by 3dB from the gain value Knob A Centre Frequency 10 0Hz to 25 6kHz in variable steps Knob B Width display selectable Q or BW Bandwidth BW adjustable from 0 05 to 5 octaves in variable steps Q adjustable from 14 2 to 0 2 in variable steps Knob C Gain 15dB in 0 2dB steps 7 a J e User Guide version 1 5 Page 22 of 29 LIGNA Limiters e Knob A Threshold 40dBu to 20dBu in 0 2dB steps A high performance low distortion limiter is provided on each output Threshold is user adjustable all other parameters are carefully calculated dependant on configuration to provide clean and effective control of signal dynamics Routing e Knob A Output source selectable Input A Input B or Sum A B Configures the routing from input to output This function is only available in mono f
22. taves bandwidth 1 36 octave steps 3 pin female XLR 3 pin male XLR Future option Future option 3 pin IEC Universal switch mode PSU 85v to 250v AC 50 60Hz 25watts 44mm H 482mm W 254mm D 2 7 Kgs net Page 29 of 29
23. versions in any free preset location Navigation and Viewing Parameters Many of the processing elements in each input and output path have features that may be controlled by the user such as gain frequency or limiter threshold We call these adjustable features parameters A parameter may be adjusted when it is displayed by turning one of the three parameter knobs Each of the three parameter knobs is associated with a zone on the display Adjusting the leftmost parameter knob will change the value of the parameter showing in the leftmost zone of the display and so on Turn a knob clockwise to increase the value of a parameter or anti clockwise to decrease it The knobs are velocity sensitive so turning a knob rapidly will cause the action to accelerate so the value changes more rapidly Navigation The DSP parameters are organised by channel The currently selected channel is shown in the top left hand corner of the display You can navigate between the channels by pressing the channel buttons Pressing the channel buttons will scroll through the channels utilities and back to the default screen When using a Preset that is stereo linked the channel selection will reflect this For example 1 amp 4 indicates outputs 1 and 4 When navigating onto an output channel the usage of the output as define in the Factory Preset will be shown briefly at the top of the screen SS a e e User Guide version 1 5 Page 14 of 29 LIGN
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