DIGITAL SYSTEM OPTIMIZER
Contents
1. 27 27 Granden B Cc RR tsm 27 EVER YTAN __ _ _ __ 27 Entering Password to Complete Locking 28 SYSTEM SUD MENJU NC CN RR tB 29 eyes 29 Re ates nee iste peace 29 LED BOIG TO 29 Temperature Aan 29 29 iie ciim 29 E 29 Delay 29 INTERFACE SUB MENU aimsir irinn ers eer eens 30 30 AES EBU 31 M 31 ANNO NCS PN PERTH2. 2 CONTENTS 5 3 IMPORTANT SAFETY 6 THANK S 7 UNPACKING THE 09046 7 INTRODUCTION EAA 8 55 8 FRONT PANEL FAMILIARISATION basa ua aUa RU E Ex UCUS SICHER UU nnne 9 REAR PANEL CONNEG LIONS nmn ntm NP EN 10 OPERATING THE 0 026 11 UU 11 05026 CONFIGURATIONS riae rea oe lov oca lr or woe oi orc o ors 12 12 Way 12 2 EE OO X OOeA 12 ENOS T p 14 s 15 a 16 SCREEN LAYOUTS OVERVIEW 2 0 2 20 nana 17 AUDIO FUNCTION SCREENS
3. Menu LOO Contrast SYSTEM Peng Ee up Tine STIL PEE Meters gt Delay Timer Distance 05026 User Manual AUDIO FUNCTION SCREENS Gain Screen BACK NEXT MENU ENTER BYPASS QUIT DELAY DELAY FREQ Lo FREQ RELEASE THRESH Use the GAIN control Each input and output has an individual gain screen The inputs have a range of 6dB to 40dB adjustable 0 1dB steps and the outputs a range of 15dB to 40dB again adjustable in 0 1dB steps sl 24 For further details this topic see the section gi Operating Level on page 32 05026 User Manual Polarity Screen BACK WEXT MENU ENTER BYPASS QUIT DIGITAL SYSTEM OPTIMIZER To adjust the polarity d FREQ Lo FREQ SLOPE ATTACK RELEASE THRESH Use the GAIN control to switch between and Each output has an independent polarity screen This gives the flexibility to reverse flip by 180 the phase of individual outputs v Note When the outputs are ganged the polarity screens remain individual 05026 User Manual Delay Screen BACK NEXT MENU ENTER BYPASS QUIT DIGITAL SYSTEM OPTIMIZER To adjust delay settings DELAY FINE DELAY FREQ FREQ RELEASE THRESH Use the DELA
4. 31 6 ee ee een ee 31 OPERATING 5 8 32 Grup LEVEI eM 32 32 05026 User Manual deere 32 _ 33 34 setting Accurate Limiter 35 FACTORY PRESETS ater 37 CIS ror ae nee A ee ee 37 TELI 2 Ue M 39 Voltage ol TELE _________ 42 SPECIFICATIONS 43 luieecagbg 44 OPTIONS AND ACCESSORIES i isivxgkna uA EE FERE REY MERE EVER MEE RES M SEEN GRE UEM MEM 44 APPENDICES T 45 Appendix 1 Limiter threshold in dB to Vrms lookup 45 Appendix 2 Default X over settings and names for all 46 Appendix 3 Equalisation 47 05026 User
5. cr 7 DIGITAL DIGITAL sun ANALOGUE ANALOGUE x5 DELAY GAIN LIMIT MUTE GAIN MAIN DELAY mmn ail 2 ai gt INPUT lza e Ay E LO MID Tam LE DIGITAL ANALOGUE CHEM S DAAE RT 1 A e DIGITAL OUTPUT 4 DIGITAL 5 DELAY GAIN 9 DIGITAL L Ne AES EBU Digital input and output interfaces are available as an option factory fitted only Input and output balancing transformers are also available as an option factory fitted only 05026 User Manual 5 way 1 This format feeds input A to outputs 1 2 3 4 and 5 designated sub low lo mid hi mid and high respectively Output 6 is configured as an auxiliary with the source being either input B or the sum or inputs A and B ANALOGUE ANALOGUE GAIN MAIN DELAY LPF PEQx5 DELAY GAIN MUTE INPUT OUTPUT HA e JH HIE DIGITAL DIGITAL ANALOGUE ANALOGUE HPF LPF PEQx5 DELAY GAIN LIMIT MUTE gt GAIN MAIN DELAY L2 gt BAR SELECT IE LOW B 9 gt DIGITAL DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN gt EUL
6. Preset Name Preset Name Note Always check Proel website http www proelgroup com for updates EDGE presets There are two versions of EDGE presets A and B These differ in the high frequency shelving presets Version is suited for indoor applications or when EDGE 212P arrayed Version B is for outdoor applications or when EDGE 212P are arrayed resulting in a better dispersion pattern 10 EDGE121sP 212PA 2 Way crossover 11 6 2188 222 2x3way Crossover 05026 User Manual 12 121 218 212 4 way crossover plus 2 5 B2Sub Mid High Allowed Sub B2Sub gain trim and delay time normal High shelving eq ANALOGUE ANALOGUE b MAIN DELAY HPF LPF PEQx5 DELAY GAIN LIMIT MUTE LOW DIGITAL DIGITAL ANALOGUE ANALOGUE HPF LPF PEQx5 DELAY GAIN LIMIT MUTE GAIN B al e DIGITAL DIGITAL e ANALOGUE HPF LPF PEQx5 DELAY Le OUTPUT 3 MID HIGH DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN LIMIT A 5 gt Ui TUB DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN LIMIT B TO SUB DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN LIMIT 6 mm DIGITAL AES EBU Digital input and output interfaces are available as an option factory fitted only Input and output balancing transformers are also available as an option factory
7. ut2 Low ut 5 High Sub PRL 1400 Low PRL600 High PRL600 29 TFL118SP 12 BA Sub Low High Sub 1400 Low PRL950 High PRL600 30 1155 15 BA Sub Sub Low High Sub 1400 Low PRL1400 High PRL600 31 TFL115SP 152P BA Sub Sub Low High oub PRL1400 Low PRL1400 High PRL600 05026 User Manual 32 TFL215SP SAT Sub Sat Aux Sub PRL950 bridged 33 TFL215SP 12 BA Sub Sub Low High oub PRL950 bridged Low PRL950 High PRL600 34 TFL215SP 15 BA Sub Low High oub PRL950 bridged Low PRL 1400 High PRL600 35 TFL215SP 152P BA Sub Low High oub PRL950 bridged Low PRL 1400 High PRL600 36 TFL215SP 212P BA Sub Sub Low High oub PRL950 bridged Low PRL 1400 High PRL600 TFL218SP SAT Outi Out1 Sub Sat Aux oub PRL1400 bridged 38 TFL218SP 15 BA Sub Low High Sub PRL1400 bridged Low 1400 High PRL600 39 TFL218SP 152P BA Sub Sub Low High Sub PRL1400 bridged Low 1400 High PRL600 40 TFL218SP 212P BA Sub Sub Low High Sub PRL1400 bridged Low 1400 High PRL600 05026 User Manual Voltage gain of TFL amplifiers Amplifier Voltage gain dB PRL600 bridged PRL950 bridged PRL1400 bridged 05026 User Manual SPECIFICATIONS Inputs 2 electronically balanced Impedance gt 10k ohms CMRR gt 65dB 50Hz 10kHz Outputs 6 electronically balanced
8. PROEL SOUND REINFORCEMENT 05026 DIGITAL SYSTEM OPTIMIZER USER S MANUAL www proelgroup com MADE IN EUROPE 05026 User Manual DSO26 Quick Reference Accessing channels press channel s GAIN button First press accesses that channel s gain To scroll through a channels parameters use the BACK and NEXT keys Second press accesses last viewed parameter Third press will drop back to the default screen Accessing menus press the MENU key Use the BACK and NEXT keys to select the sub menu required and enter using the ENTER key This applies to all levels of menu ENTER always confirms selections The Menus and their Contents Input Setup Sub menu Used for ganging input gain and base delays X over Sub menu Used for storage and recall of crossovers including format output EQ output delay output gain and limiter settings Also used for design of new crossovers Security Sub menu Used for locking various features of the units using a four digit code System Sub menu Used to view the units status and select various global options such as parametric EQ Q or bandwidth units and output meter monitoring point pre or post mute Notes The crossover or output settings are stored and recalled independently using store recall a X Over from the input settings using store recall input memory The output meters show level in dB from the limiter threshold The input meters show level in dB fro
9. 4 1 1840 18 21 lt gt 18 misi isle eee 19 Delay M E m sauna DN m 20 High and Low Pass Filter Screens sioe reci oye re Eta sre E deben aeneo Deuce ep n 21 Parametric Equaliser eT 21 RR m 22 tmm 23 05026 User Manual MENU SELEG ION 24 INPUT SETUP 0 25 25 X OVER SUBMENU 26 26 Bre EN oic 26 26 Eraso OV Sie MOM MERE 26 SECURITY SUB MENU 0 02 2 27 RS E E 27 TOV 27 sere ___ _____ ____ 27 PROVO USP ee INO oes 27
10. 9 Source Imp 60ohms Min Load 600ohm Max Level 20dBm into 600 ohm Frequency Resp 29 20Hz 20kHz Dyn Range gt 110dB 20Hz 20k unwtd Distortion 02 1kHz 18dBm Maximum Delay 650 mS Min Step Size 2 6 15 Input Gain 6dB to 40dB in 0 1dB steps Output Gain 15dB to 40dB in 0 1dB steps and mute Parametric Equalisation 5 Sections per Output Filter Gain 15dB to 30dB in 0 1dB steps Freq Range 20Hz 20kHz 1 36 octave steps 368 positions Filter Q BW 0 4 to 128 2 5 to 0 008 Sections switched to shelving response Low frequency 20Hz 1kHz High frequency 1kHz 20kHz Shelf gains 15dB in 0 1dB steps Options Transformers available Optional Interfaces High and Lowpass Filters Filters 1 of each per output Freq Range HPF 10Hz 16kHz 1 36 octave steps Freq Range LPF 35Hz 22kHz 1 36 octave steps Responses Bessel Butterworth 12 18 24dB Oct Linkwitz Riley 24dB Oct Limiters Threshold 22dBu to 10dBu Attack time 0 3 to 90 milliseconds Release time 2 4 8 16 32 x Attack time Display 2x20 character backlit LCD Input meter 2 x 3 point Output meter 6 x 3 point Connectors Inputs 3 pin female XLR Outputs 3 pin male XLR External 9 pin DEE connector RS232 Power 3 pin IEC Power 60 to 250V 15 0 50 60Hz Consumption 20 watts Weight 3 5kg Net 4 8kg Shipping Size 1 7 5 1U x 19 x 11 8 44 x 482 x 300mm excluding connectors
11. AES EBU Digital Input Output Due to continuing product improvement the above specifications are subject to change 05026 User Manual Warranty This product is warranted against defects in components and workmanship only for a period of one year from the date of shipment to the end user During the warranty period Proel will at it s discretion either repair or replace products which prove to be defective provided that the product is returned shipping prepaid to an authorised Proel service facility Defects caused by unauthorised modifications misuse negligence act of God or accident or any use of this product that is not in accordance with the instructions provided by Proel are not covered by this warranty This warranty is exclusive and no other warranty is expressed or implied Proel is not liable for consequential damages Options and Accessories Part Description DSO26 Transformer balanced inputs factory fitted only DSO26 Transformer balanced outputs factory fitted only AES EBU Digital inputs outputs factory fitted only 9 pin D type to 9 pin D type cable 1m 05026 User Manual APPENDICES Appendix 1 Limiter threshold in dB to Vrms lookup table dB Vrms dB Vrms 22 975 5 1138 pe sse pa zm 0 98 0 87 0 77 Calculation Vrms 0 7746 x 10 dBu 20 05026 User Manual Appendix 2 Default X over settings and names for all formats Low High Low Hi
12. entitled Output Limiters on page 33 NS 1 4 Vuli OW 05026 User Manual MENU SELECTION The following menu selections are available Xover Sub menu Load a Xover loads a pre defined crossover Design a Xover starts the set up wizard for designing a new crossover Store a Xover stores all output settings as a defined crossover Erase a Xover Mem erase an individual crossover memory Input Set up Sub menu Gang Inputs Allows ganging of inputs for stereo operation Security Sub menu Locks the unit with a 4 digit code at one of many user definable levels DO NOT ENTER THIS MENU BEFORE HAVING THOROUGHLY UNDERSTOOD THE WAY THE LOCK OUT WORKS AS DESCRIBED ON PAGE 27 oystem Sub menu System Status displays unit info such as version amp internal temperature LCD Contrast adjusts the contrast of the LCD screen LED Brightness adjusts the brightness of all indicator LEDs Temperature Alarm sets a temperature warning threshold in C Wake up Time sets time take for unit to pass audio after power up Output Meters selects whether meters are monitoring pre or post mute Filter or BW selects display type for parametric filter screens Delay Time Distance select units to display delays in mS m ft Interface Sub menu Interface Setup enable disable interface and set baud rate AES EBU Sub menu Routing Options select various routing opt
13. no output parameters the crossover sections are completely locked All mutes remain active Xover Trim Mute As for Xover Trim but additionally output mutes are locked Input mutes remain active Changes Only All parameters may be viewed but none may be adjusted This applies to both inputs and outputs All mutes remain active Changes View No parameters are accessible in effect the GAIN keys do nothing All mutes remain active Changes Mutes All parameters may be viewed but none may be adjusted This applies to both inputs and outputs All mutes are also locked EVERYTHING No parameters are accessible in effect the GAIN and MUTE keys do nothing 05026 User Manual Entering the Password to Complete the Locking Operation After selection of the lock type from the list above a four digit security code will be asked for This can be entered by using the FREQ control to select a character and the BACK and NEXT keys to move to the next character Alternatively the GAIN keys can be used to enter a code by pressing any combination of the eight buttons Each GAIN key represents its channel labelling so any combination of B 1 2 3 4 5 and 6 can be used as a code as shown below CLIP OUTPUT IMPORTANT Please note your code If the security code number is forgotten contact your local sales office 0502
14. the delay times To convert from units of time i e milliseconds to units of distance use the following formula lms 343mm 1 1268 20 68 To calculate time delay for a known distance use L _ 20 06 4273 C where L Distance in meters C is the temperature in C To simplify this equation at 20 C L meters x 2 192 Note Centigrade Fahrenheit 32 x 0 5555 05026 User Manual Output Limiters High performance digital limiters are provided for each output with control over attack time release time and threshold level parameters see page 23 for details This level of control allows the user to balance the required subjective quality of the limiter against the driver protection requirements It does also mean that an incorrectly set limiter may sound awful In particular as with all limiters using too fast an attack or release time will result in excessive low frequency distortion In the Design a Xover sub menu there is an option for automatic limiter time constants In this mode the time constants will be automatically set from the Highpass filter frequency according to the table below The time constants are set by the high pass filter frequency for that channel High Pass Filter Auto Attack Time Release Time 63Hz 125Hz 16 128 5 125Hz 250Hz BEN 16 64 5 250Hz 500 2 EN IN x16 32mS 05026 User Manual Setting Accurate
15. the top line of the display Erase a Xover Mem Permits clearing erasing of individual crossover memories from the unit Note that once erased the memory name disappears from the list of recallable locations If the crossover memory is currently in use its name will remain on the default screen and the current settings will not be changed 05026 User Manual SECURITY SUB MENU After selecting the Security Sub Menu and pressing ENTER select one of the lock types after choosing the most appropriate one for your application As ever ENTER will confirm your selection User Specific Upon pressing ENTER to select this type of lock each parameter group is presented in turn Choose the type of lock as above using the FREQ encoder and press ENTER to confirm each parameter After the last parameter the unit requests a password The description of this operation is given at the end of this section This option allows the user to specify for each type of parameter whether it is to be completely accessible Lock viewable but not adjustable Control or effectively unavailable The ability to operate mutes store or recall memories or even access the menus may also be locked Xover Only All input parameters are available but only the gain trim is available on the outputs effectively locking all the crossover settings All mutes remain active Xover Trim All input parameters available but
16. way can have the outputs ganged for stereo operation This gangs outputs 1 amp 4 2 amp 5 and 3 amp 6 so that they track identically It can be selected or modified by entering the Design a function again ANALOGUE ANALOGUE i GAIN MAIN DELAY HPF LPF FEQ x 5 DELAY GAIN MUTE A LOW JH lr DIGITAL gt DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN MUTE MID Ir DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN MUTE HIL DIGITAL E ANALOGUE ANALOGUE ie GAIN MAIN DELAY HPF LPF PEQx5 DELAY GAIN LOW JH ft DIGITAL 2 DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN MUTE ee MID Ir gt DIGITAL ANALOGUE HPF LPF PEQx5 DELAY GAIN pe p DIGITAL AES EBU Digital input and output interfaces are available as an option factory fitted only Input and output balancing transformers are also available as an option factory fitted only 05026 User Manual 4 2 This format feeds input to outputs 1 2 and 4 designated low lo mid hi mid and high respectively Outputs 5 and 6 are configured as auxiliaries with their source being either input B or the sum or inputs A and B H DIGITAL UN 9 Q ANALOGUE 9 ANALOGUE WP T
17. 4Q Pwr2 Q0 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 Using this table it is a straightforward procedure to work out the required setting of the limiter thresholds for the system Follow the steps described overleaf First check the RMS power rating of the speaker system and its impedance Look up this value in the table above using the closest value below the rated power of the speaker system Note the corresponding dB value Check the gain of your amplifier which needs to be in dB DSO26 User Manual Subtract this gain figure from the dB value obtained from the table to find the required absolute setting for the limiter thresholds Note that for safety always set the limiter threshold 1 or 2 dB below the maximum allowable worked out using the above method ALWAYS REFER TO YOUR SPEAKER MANUFACTURER FOR LIMITER SETTINGS 05026 User Manual FACTORY PRESETS 05026 is factory preloaded with presets for the EDGE and TFL loudspeaker lines The presets were optimized by engineers at Proel to achieve the best performance As a general rule Sat and Aux outputs are not locked and can be programmed by users to fulfill their needs All Aux outputs are muted by default Sub out gain is trimable its limiter thresholds are generally left free and the delay time is unlocked The default time alignement was calculated in Proel s anechoic chamber taking into account the most common speaker placement positions
18. 6 User Manual SYSTEM SUB MENU System Status Displays unit information including software version and temperature Curr Temp current temperature in degrees Celsius Temp maximum temperature this session Max2 Temp maximum temperature ever reached LCD Contrast Adjusts the LCD contrast from 0 to 100 LED Brightness Adjusts the LED brightness from 1 to 15 Temperature Alarm Sets a temperature warning between 20 and 80 C The default screen will flash ALARM Temp when the specified temperature is reached N B the warning does not affect the units performance any respect Wake up Time Sets how the unit starts up with one of the following options 0 to 60 seconds Waits the specified time before unit wakes up Mute hold Turns on and holds all output mutes when turned on N B Wake up is a slow ramp in level for about 5 seconds Output Meters Selects whether the output meters are pre or post mute If the meters set to read pre mute they will still show the level even if the channel has been muted Filter Qor BW Selects whether Q or Bandwidth is displayed in the parametric screens Delay Time Distance oelects whether delay is displayed in milliseconds metres or feet 05026 User Manual INTERFACE SUB MENU Interface Setup If the interface is enabled the option will become available to select the baud rate This must be set to match tat on the PC to be used for
19. ATING NOTES Operating Level With any audio signal processing equipment it is necessary to ensure adequate signal level is used through the device to avoid sacrificing noise performance With equalisation in use it may be necessary to reduce the input level as gain within the unit may cause digital clipping indicated by the top red LED s lighting independently of the rest of the meter should be noted that the figure quoted for the maximum input level options is the clipping point for that option not a safe operating level Always ensure that this clipping point is no lower than that for the following equipment in the signal chain and allow extra margin if equalisation sections are boosted Grounding The Screen shield pins on all audio connectors are normally connected directly to the ground pin of the IEC mains inlet The chassis is also directly connected to this pin Never operate this unit without the mains safety ground connected Signal ground OV is in turn connected to the chassis ground To avoid ground loops cable shields should be connected to ground at one end only The normal convention is that the shield is only connected at the output XLR Crossover Filter Slopes Please consult the block diagrams on page 12 for details of the various configurations available All crossover modes feature adjustable crossover frequencies with a choice of slopes 5 bands of driver compensation E Q per output and delay time plus limit
20. CREEN LAYOUTS OVERVIEW Xover Sub Menu Input Setup Sub Menu gt ouer Sub Mernu 00 0 5 input Setup SubMerus INPUT SETUP Menu Input Options 2 load a Mover Input COprtionz Over Hen souer CS MENU ENTER CS OUTPUT CS MENU NEXTx4 GAIN Input Section Screens Output Section Screens Interface Sub Menu i e Lou 2 Input A MENL gt Don o lio INTERFACE Men InterFace Setup 4 Low Polurita Input Delas Delay ms S 5 Delay mis AES EBU Sub Menu CIF lee Log LnE RH 2408 Sub Menu gt Eouting Options HES CPi 4 Low LEF Y NEXT MES EBL gt HER 2 Low 1 lt gt 4 13584 lt gt B 24 AJE 1 4 Lou Limiter DtEOIms Ext Security Sub Menu gt Security eub enu SECURITY
21. ER LOW MID it DIGITAL ANALOGUE HPF LPF 5 DELAY GAIN E gt BAR ee MID DIGITAL ANALOGUE HPF LPF PEQ 5 DELAY GAIN LIMIT MUTE 2n gt BAR 2 td it DIGITAL ANALOGUE x 5 DELAY GAIN tyr Vs OUTPUT 6 m DIGITAL AES EBU Digital input and output interfaces are available as an option factory fitted only Input and output balancing transformers are also available as an option factory fitted only 05026 User Manual 6 way This format feeds input A to all outputs designated lo sub through high 1 to 6 respectively ANALOGUE 8 E GAIN MAIN DELAY HPF si 3 DIGITAL 5 DELAY BIE 5 DELAY HPF LPF ee se ANALOGUE i nad OUTPUT 1 LO SUB DIGITAL ANALOGUE di OUTPUT 2 SUB DIGITAL ANALOGUE smect OUTPUT 3 Low DIGITAL ANALOGUE ma OUTPUT 4 LO MID DIGITAL ANALOGUE suat OUTPUT 5 HI MID DIGITAL ANALOGUE enad OUTPUT 6 171 DIGITAL AES EBU Digital input and output interfaces are available as an option factory fitted only Input and output balancing transformers are also available as an option factory fitted only 05026 User Manual S
22. Hz Butterworth 1288 5kHz Bessel 12 dB 5kHz 28 58 188 2 08 5 1k 2k ok 10k 2 Frequency Hz Low Pass Filter Response Curves PROEL SOUND REINFORCEMENT PROEL S p A World Headquarters Factory Via alla Ruenia 37 43 64027 Sant Omero TE Italy Tel 39 0861 81241 Fax 39 0861 887862 E mail info proelgroup com www proelgroup com
23. Limiter Thresholds The limiters built into the DSO26 are intended to be used for for loudspeaker driver protection as opposed to amplifier protection All modern professional power amplifiers designed for live sound use have their own limiters which are tailored to protecting the amplifier from clipping The following section describes how to set up the 05026 5 limiters to provide exceptional protection against driver overheating and cone over excursion Most speaker systems are given a power rating in Watts RMS This is the maximum continuous power that the system will handle and often appears very conservative In reality music program is far from continuous in nature the peak power of the system is much higher up to ten times the continuous figure Any limiter which is to protect the driver from damage must be able to fulfil the following tasks Have an attack time which is calculated to allow transients through but keep the RMS level below the speaker manufacturers specification Have a release time which is sufficiently long to avoid the limiter itself modulating the program Be intelligent enough to adjust the envelope of the limiter according to the frequency content of the program material DSO265 limiters are capable of performing all these tasks The only parameter which the user must set manually is the threshold and it is crucial that this is done correctly Consider the table below dB Ratio Vrms Pwr8Q Pwr
24. Manual Radiated Emissions EU EN55013 1 1996 RF Immunity EU EN55103 2 1996 RF Immunity ESD Burst Transient Surge Dips amp Dwells Electrical Safety EU EN60065 1993 An example of this equipment has been tested and found to comply with the following European and international Standards for Electromagnetic Compatibility and Electrical Safety Important Safety Information Do not remove Covers No user serviceable parts inside refer servicing to qualified service personnel This equipment must be earthed CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN DO NOT EXPOSE TO RAIN OR MOISTURE should not be necessary to remove any protective earth or signal cable shield connections Do not defeat the purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wider blade and the third prong are provided for your safety When the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet Only use this equipment with an appropriate mains cord In the USA the cord should comply with the requirements contained in the Standard for Cord Sets and Power Supply Cords UL 817 be marked VW 1 and have an ampacity rating not less than the marked rating of the apparatus 05026 User Manual THANKS Thank you for choosing the DSO26 for your application Please s
25. Preliminary Set up The procedure below should be followed when first installing a DSO26 Design your crossover do this press MENU and use the BACK or NEXT key to select sub menu and then press ENTER Use the BACK or NEXT key to select Design a X over and then press ENTER Finally use the BACK or NEXT key to select the desired configuration and follow the set up wizard to finalise your design Note that when in a menu ENTER is always used to confirm selections The current selection is marked with an asterisk Use the GAIN keys on each output channel with the BACK and NEXT keys to select the high pass filters low pass filters parametrics etc Note that when designing a new crossover the high and low pass filters will be set to default values See appendix 2 for more information Use the GAIN keys on each input channel with the BACK and NEXT keys to select the gain and delay available on each input mode after about twenty 20 seconds Repeat the above directions to return to v Note that if no action is taken in menu mode the unit will return to normal default menu mode 05026 User Manual DSO26 CONFIGURATIONS Introduction To simplify the set up of the DSO26 5 crossover modes are selectable from the X over sub menu These all have parametric equalisers high and low pass filters gain controls delay and limiters The following set of diagrams detail how each of the five modes is
26. Y control for coarse control 1mS steps Use the FINE DELAY control for fine control 2 6uS steps Each input and output has an independent delay time control Inout delay base delay is adjustable 1mS steps Output delay is adjustable 2 6uS steps or in 1mS steps giving complete control over driver time alignment The combination of input base delay and output delay can be a maximum of 6505 So for example setting a base delay of 5005 on input A will only leave 150mS for any outputs that are sourced from input A The exception to this rule is for any aux outputs available in 4 and 5 way crossover modes Choosing the source as a mono sum Inputs B will allow 650mS of output delay regardless of the input delay settings Al 7 For further details on this topic see the section entitled Time Alignment Ws page 33 05026 User Manual High and Low Pass Filter Screens BACK NEXT a MENU ENTER BYPASS QUIT DIGITAL SYSTEM OPTIMIZER To adjust HPF LPF settings DELAY FINE DELAY GAIN FREQ FREQ zdz RELEASE THRESH Use the FREQ control for the frequency Use the SLOPE control for the slope Each output has an independent high pass filter and an independent low pass filter Both filters have a range of selectable slopes which are Bessel 12dB 18dB and 2448 Butterworth 12dB 18dB 24dB and Lin
27. ers for each output A powerful 8 band parametric equaliser is also provided on each input for room equalisation Phase reverse is provided for each output A choice of Bessel or Butterworth slopes at 12 18 24dB per octave and Linkwitz Riley at 24dB per octave are provided Since Low and High pass functions are separately adjusted asymmetric slopes are easily achieved if required It should also be noted that the turnover frequency displayed on the 05026 is the 3dB point for all slopes except 24dB Linkwitz Riley where the 6dB point is shown If the 6dB point is to be used for the Bessel or Butterworth filter take the required crossover frequency multiply this by the appropriate factor from the following table and then select the closest available frequency on the DSO26 s display Filter Type High pass factors Low pass factors Bessel 12dB Oct Butterworth 12dB Oct Please note that unlike conventional analogue crossovers crossover points and slopes are set with absolute accuracy since component tolerance problems do not occur 05026 User Manual Time Alignment A further advantage of the 05026 over conventional products 15 the provision of an independently adjustable delay section for each output This allows the true arrival time from multiple drivers to precisely aligned rather than relying on the compromise phase adjust approach Delay time is adjustable in 2 6uS steps 1mm Please see page 20 for details of how to adjust
28. fitted only 13 EDGE121SP 212PB 2 Crossover 14 EDGE218SP 212PB 2 3 Crossover 05026 User Manual 15 EDGE121 218 212B Low Mid Low Mid High Allowed Sub B2Sub gain trim and delay time increased High shelving eq 16 Sub EDGE15CXP BA Sub Sub Low High Allowed Sub gain trim limiter threshold and delay time EDGE121SP SAT Sub Sat Aux TFL presets TFL presets are intended to optimse the performance of the TFL loudspeaker line Due the non constant voltage gain of the Proel PRL line of amplifiers see table at the end of this section these presets are valid ONLY if used with the PRL amplifiers specified 18 AUX TFL10P BA Aux Aux Low High Low PRL600 High PRL600 19 AUX TFL12P BA Aux Aux Low High Low PRL950 High PRL600 20 AUX TFL15P BA Aux Low High Low PRL 1400 High PRL600 21 AUX TFL152P BA Aux Aux Low High Low PRL 1400 High PRL600 22 AUX TFL212P BA Aux Aux Low High Low PRL 1400 High PRL600 05026 User Manual 23 TFL115SP SAT Sub Sat Aux Sub PRL1400 24 1155 10 BA Sub Sub Low High Sub PRL1400 Low PRL600 High PRL600 25 TFL115SP 12 BA Sub Low High Sub PRL 1400 Low PRL950 High PRL600 26 1155 15 BA Sub Low High Sub 1400 Low PRL1400 High PRL600 TFL118SP SAT Sub Sat Aux Sub PRL 1400 TFL118SP 10P BA 28
29. gh Ms BM LN BM m 8Hz 2 1k82Hz 22kHz 1k82Hz 22kHz 120Hz 22kHz Low High 22 1Hz 120Hz 1k82Hz 22 1Hz 120Hz 1k82Hz 120Hz 1k82Hz 22kHz 120Hz 1k82Hz 22kHz LEN HMM e Hz LE 22kHz LN 1Hz 20 1Hz 149Hz 1k31Hz 8kHz 22kHz 22kHz 15Hz 80 3Hz 180Hz 1k31Hz LE 22kHz EIE 1Hz 80 3Hz 180Hz 1k31Hz 8kHz 22kHz Low HiMid Higa MEN 3Hz LAN La 4kHz 2 80 3Hz 149Hz 1kHz 10k1Hz 22kHz Note All filters set to 24dB Linkwitz Riley 05026 User Manual Appendix 3 Equalisation Curves 1508 LL AN a o 01 ___ eS 00 28 58 188 2 08 1k 2k Hz Parametric Filter Gain Curves 00 5 1 Frequency Hz Parametric Filter Q Curves 28 58 188 2 BB 1k 2k Hz Parametric Filter High and Low Shelving Responses 5k 1 2 Bk 05026 User Manual 28 5H 188 2 BB 5 1k 2k 5k 18k 2 Bk Frequency Hz Parametric Filter High Q Notch Filter Response Bessel 12dB 50 2 b Butterworth 1208 50 2 Bessel 2406 200Hz Butterworth 24dB 200Hz e Linkwitz Riley 2398 500Hz n m 2 00 568 1k 2k Hk 2 Bk Frequency Hz High Pass Filter Response Curves a Linkwitz Riley 2406 1kHz b Butterworth 24dB 2kHz Bessel 2406 2k
30. internally configured Note that the 2 x 3 way and 3 x 2 way modes also offer the option of ganged parameter adjustment for stereo systems 2 x 2 way with Mono Sum This format feeds input A to outputs 1 and 2 designated low and high respectively Input B feeds outputs 3 and 4 low and high respectively Outputs 5 and 6 are both fed from the sum of inputs A and B Output 6 is a full bandwidth output by default with output 5 being bandwidth limited as a sub output a ANALOGUE ANALOGUE ie GAIN MAIN DELAY HPF LPF FEQ 5 DELAY GAIN x H Ly LOW 1 E DIGITA gt DIGITAL ANALOGUE T gt GAIN MAIN DELAY B 1 l DIGITAL ANALOGUE LP Q DELAY GAIN MUTE Af BP fA LOW E DIGITAL ANALOGUE LP Q ELAY GAIN UMIT MUTE E HIGH it gt DIGITAL HPF LPF PEQ 5 DELAY GAIN OUTPUT 5 SELECT MONO SUB DIGITAL ANALOGUE BSE HPF LPF PEQxS DELAY GAIN LIMIT MUTE 25 AUXILIARY DIGITAL AES EBU Digital input and output interfaces are available as an option factory fitted only Input and output balancing transformers are also available as an option factory fitted only 05026 User Manual 2x 3 way This format feeds input A to outputs 1 2 and 3 designated low mid and high respectively Input B feeds outputs 4 5 and 6 as low mid and high respectively Note that this configuration as with the 2 x 2
31. ions AES Diagnostics shows complete status of AES signal Only available if the AES EBU option is fitted 05026 User Manual INPUT SETUP SUB MENU There is one option in this menu Gang Inputs Gangs A and B inputs so that precise adjustments can be made to both inputs simultaneously Both GAIN LEDs will light when the inputs are accessed and the LCD will show A B All adjustments are now absolute and any adjusted parameters on both channels will become identical If it is necessary to introduce an off set on any parameter un gang the inputs and adjust If re ganged channel B will jump to channel setting 05026 User Manual X OVER SUB MENU Load a Xover Loads a stored crossover from the selection available Enter accepts the selected name and loads immediately Design a Xover Opens a wizard to design a crossover Options include format type ganging of outputs routing and automatic limiter time constants The table below outlines which options are available dependant on what type of crossover is chosen for the design 2 x 2 Way 2 x 3 Way 4 Way 5 Way 6 Way Out 5 Source A A B Outputs Yes No Outputs Yes No Source A A B source A A B TC Yes No TC Yes No TC Yes No TC Yes No TC Yes No Store a Xover Stores a X over all output settings to one of 9 locations Crossovers can be named using the same method as memories with up to 16 characters which appear in the default screen on
32. kwitz Riley 24dB Highpass filters have a range of 10Hz through to 16kHz and Lowpass filters have a range of 22kHz through to 39Hz in 1 36 octave steps HPFs and LPFs can be set asymmetrically For further details on this topic see the section entitled Crossover Filter Slopes on page 32 DSO26 User Manual Parametric Equaliser Screen BACK NEXT MENU ENTER BYPASS QUIT DIGITAL SYSTEM OPTIMIZER ATTACK RELEASE THRESH Use the FREQ control for the frequency Use the Q control for the Q Use the GAIN control for the gain Each parametric section can be positioned at a frequency from 20Hz to 20kHz and features a wide range of Q s to produce response curves ranging from broad to notch The gain control ranges from 15dB to 30dB in 0 1dB steps Frequency steps are 1 36 octave resolution for precise control Since all filtering is achieved in DSP all settings are re settable with absolute accuracy and in ganged mode parameters track identically Very narrow band notch filters maximum Q of 128 can be achieved and unlike analogue filters these tight Q filters are entirely stable The maximum notch depth is 30dB Parametric filters are carefully implemented using Double Precision processing This method is costly in terms of processing power but yields substantial benefits in terms of the DSO26 s exceptional noise performance and greatly improved low frequency stability Note To show pa
33. m input clip The high and low pass filters are defined independently on each channel To access the limiter attack and release parameters select Auto Limiter TC No when designing a crossover To swap parametric filter units between bandwidth BW and Q enter the System sub menu select Filter or BW and select required readout units snu w 55914 125 55914 uornoas 152 alA 55914 5 01 295 i3 uayey 01 SS YdA g _ Snusu ANAW 5 pue 19 U9 0 199125 2 5592028 0 55914 snuaw 1 11 A 1 m I 7 AWTS FN ae 3 os Hos t L E Eg LJ 198 055013 papu qr 031 jauueyo pue sJajauieJed 2 dajs 1L X3N janaj MOUS 5 jndu 5 dl 12 sapun moys 5 jndjno 05026 User Manual CONTENTS 09026 nee eee ee eee eee 2 The Menus ire riz 2 je
34. nally fine minimum increment of 2 615 Three velocity sensitive encoders provide a familiar and intuitive control format with all filter information displayed simultaneously on a backlit LCD screen AES EBU Digital input and output interfaces are available as an option Input and output balancing transformers are also available an option 05026 User Manual FRONT PANEL FAMILIARISATION LCD Screen shows menu options channel information and various parameters as they are adjusted DIGITAL SYSTEM OPTIMIZER Next Key moves forwards through the list of available parameters Back Key moves back through the list of available parameters Menu Key activates the main menu second press selects the last menu edited Selection of different menus may be accomplished using the Back and Next keys or by turning the Freq encoder Enter Key enters the chosen menu and confirms choices Bypass Key bypasses the currently selected parametric EQ section Note that for safety reasons the high and low pass filters cannot be bypassed using this Key Quit Key exits the menu A Encoders three velocity sensitive controls allow the relative e e parameter displayed on the LCD screen to be adjusted FREQ SLOPE ATTACK RELEASE THRESH Gain Keys one for each input and output allowing instant access to the gain screen for the selected cha
35. nnel ae Input Meters display available headroom below clipping The yellow 6dB LED illuminates at 6dB below actual clipping point of the input INEO section The red Clip LED shows digital overflow and can therefore illuminate independently of the rest of the meter Output Meters display headroom below limiting The yellow LED illuminates 3dB below limiting for that channel The red LED indicates the onset of limiting Mute Keys mutes the appropriate channel and illuminates the associated LED 05026 User Manual REAR PANEL CONNECTIONS Power Switch turns the units mains supply off and on Mains Fuse located in a finger proof holder adjacent to the mains inlet A spare fuse is also located in this holder Mains Inlet connected via a standard IEC socket 06 v NISNIVIA Q lt N gt lt 2 09 External RS232 standard 9 D type connector for EXTERNAL connection to PC enabling the uploading of new software to Audio In Out 3 pin XLR sockets are provided for each channel All are fully balanced pin 2 hot 3 cold 1 screen CAUTION SHOCK HAZARD DO NOT RE Always replace the fuse with the correct type and rating as shown on the rear panel legend 05026 User Manual OPERATING THE DSO26 lf you want to use the Proel EDGE and TFL presets you can skip this section and jump directly to Load page 26
36. pend a little time reading through this manual so that you obtain the best possible performance from the unit All our products are carefully designed and engineered for cutting edge performance and world class reliability If you would like further information about this or any other product please contact us We look forward to hearing from you in the near future UNPACKING THE DSO26 After unpacking the unit please check it carefully for any damage If any 15 found immediately notify the carrier concerned you the consignee must instigate any claim Please retain all packaging in case of future re shipment 05026 User Manual INTRODUCTION The 05026 is a powerful DSP based audio processor ideally suited for live sound applications where it combines the functions of a multitude of conventional products in a compact 1U unit To achieve this the DSO26 has two inputs and six outputs which can be configured in five basic crossover modes 3 x 2 way 2 3 way 4 way 5 way and 6 way Each input has a gain control and variable base delay Each output has a gain control variable delay high and low pass filters five bands of fully parametric equalisation polarity switching and additionally a fully featured limiter Multi part security lock out is available for all controls The 05026 15 also available with optional AES EBU digital inputs and outputs has been designed for quick intuitive adjustment through the use of multi
37. ple controls to provide an easy to use interface Features Superb audio quality carefully optimised double precision signal processing coupled with a 40 bit internal data path ensures a dynamic range in excess of 110dB The high sampling rate means minimal filtering providing exceptional sonic purity A flexible 2 input 6 output multi mode format caters for any crossover configuration regardless of scale A total of 30 parametric equalisation bands are available each providing 15 to 30dB of gain at centre frequencies between 20Hz and 20kHz with a wide range of Q s available between 0 4 to 128 All parameters feature fine resolution with 1 36 octave frequency steps 0 188 gain increments and 100 Q settings Any parametric section can also be set to operate as a high or low shelving filter Each output features a high performance limiter provided with complete control over attack release and threshold parameters To aid set up the output meters show headroom to the limiter threshold and use time constants that track those of the limiter to display precise power usage Each output features variable high and low pass filters with a choice of 12 18 or 24dB Octave roll off and Butterworth Bessel or Linkwitz Riley responses Independent control of each high and low pass filter allows asymmetric crossover bands to be created Delay of up to 650 5 be independently set for each output with an exceptio
38. rametric filters in bandwidth BW rather than Q go into the System sub menu select filter or BW select BW To switch a filter from parametric mode to shelving mode set the gain of the filter to OdB and then turn the Q control anti clockwise until or LOSHF is displayed Now set the frequency and gain as required To set the filter back to a parametric section just ensure that the gain is at OdB otherwise the Q control will have no effect 05026 User Manual Limiter Screen BACK NEXT MENU ENTER BYPASS QUIT SYSTEM 2 ATTACK RELEASE THRESH Use the ATTACK control to adjust the attack time Use the RELEASE control for the release time Use the THRESH control for the limiter threshold Each output has an independent high performance limiter All limiters have an attack range of 0 3mS to 90mS release times 2 4 8 16 and 32 times the attack time and thresholds range from 22dB to 10dB in 188 steps If the automatic limiter time constant option is in use all limiter screens will say automatic and the time constants will be set from the high pass filter frequency A table of dB to Vrms in case the amplifier sensitivity is given in Volts rather than dB is in appendix 1 The output meters are linked to the time constants of the limiters so true output metering is achieved For further details on this topic see the section
39. the program update Typically the set up would be as below 1 1 9 pin Male Female 5939 Cable NOT Null Modem Cable Interface Sub menu 9 Tm 2 Ester Macken 5232 Baud 38400 Laptop Desktop Running Loader Port COM2 Speed 38400 05026 User Manual AES EBU SUB MENU Connection of AES EBU signals is via the existing rear panel XLR connectors With the AES EBU option fitted AES Receive and Diagnostic modes are provided Routing Options Selects the input source either analogue or digital and similarly the output source again either analogue or digital AES Diagnostics Reports validity flag clock speed and errors present in the incoming AES digital signal AES EBU Connections The AES EBU digital signal is a stereo data stream and so only one input XLR and three output XLRs are used for the digital interface The connections are as follows Input A Analogue Input at all times Input B owitchable between digital stereo input and analogue input Output 1 Switchable between digital out for channels 1 8 2 and analogue out 1 Output 2 Switchable between digital out for channels amp 4 and analogue out 2 Output 3 Switchable between digital out for channels 5 amp 6 and analogue out 3 Output 4 Analogue output 4 only Output 5 Analogue output 5 only Output 6 Analogue output 6 only 05026 User Manual OPER
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