miniDSP Balanced kit
Contents
1. 2 2 miniDSP programming A good part of the success of the miniDSP concept lies in its simplicity of use Here are the typical steps required to program a miniDSP Connect the board to your PC Mac machine Launch the plug in by default in off line mode and allowing you to configure settings as required The next step is to Connect amp Synchronize your PC to the board i e flashing the configuration you just have in your plug in and going to the On line mode Once the board synchronized you will be in what the so called On line mode i e able to hear the effect on real time changes to the settings No further Synchronization to the board is required since all settings from now on are saved to both the DSP and the Flash component of the device for long term memory Once happy with your configuration simply un plug the board and the audio configuration will run as last modified in on line mode No need for a PC connection from now on since the board will boot up every time with that configuration Now that you have a basic understanding of how things work lets get down to the details os p 2 3 Board connectivity First step in configuring your board is getting familiar with its connectivity Balanced Input Connectors DC Input MiniUSB connection IN 1 2 Expansion connector 1 Sensitivity jumpers for inputs Nee S Jumper in ata a ae OE Expansion ari amla connector 2 o Slave posit2. 4 Typical plug in architecture Depending on your plug in the software is organized as below Main tab Gives you access to Audio or System settings sections Synchronize button Allows you to go online and gain control of your system Audio Mute Mute all inputs amp outputs Help link A quick link to get back to the main help page Control toolbar Click to access controls of each audio algorithm Main Tab Connect amp Master Mute Help link Synchronize MINI DSP STEREO CROSSOVER REVB AUDIO ON HEL OE Control toolbar 4 1 Audio settings 4 1 1 Inputs and RMS meters Available in all plug ins The first step in configuring your MiniDSP consists in making sure audio is being fed to the input correctly To do so click on the button labeled inputs The RMS meter will quickly indicate the average value of the input signal in dBFS i e relative to the full scale of the ADC or 24bit 12S signal Individual faders control the digital gain at the input and per channel mute status This meter displays dB full scale dBFS values and will saturate at OdBFS for about 0 9Vrms mode or 2Vrms mode Make sure to keep the signal below OdBFS red color and with enough headroom to prevent distortion Screenshot of Inout window for 2way Mixer plug ins INPUTS Volume and RMS meter INPUT CHANNEL 1 INPUT CHANNEL 2 dBFS input Per channel meter mute button Per channel Next Page Level control Screenshot
3. Cut off frequency 1000 Filter Type LR 48dB oct Bypass filter BYPASS HIGH PASS FILTER SETTINGS Cut off frequency 5d Filter Type LR 48dB oct X Bypass filter BYPASS CH1 BandPass filter OUT2 50 100 200 500 1000 2000 5000 10000 20000 N Bandpass filter 1 N Bandpass filter 2 The log scale graph gives you the equivalent response of the applied filter By pointing the mouse anywhere on the plotted curve the dB attenuation and respective frequency are displayed 4 1 3 Graphic equalizer Available in Mixer 2way 4way Xover Graphic EQ version Bypass Disables the equalization but doesn t reset the settings A handy tool to check the influence of equalization on your system without resetting to zero e Reset Sets all boost faders back to zero e Link channels If enabled any change on either graphic EQ channels is reflected on both graphic EQ A useful feature to apply changes to the stereo field GRAPHIC EQUALIZER CHANNEL 2 20 EQUALIZER SETTINGS Frequency 126 Hz Gain 7 dB BYPASS RESET Link channels 500 1000 2000 5000 10000 20000 50 200 25 31 40 50 63 80 100 125 160 200 250 315 400 500 630 800 ik ik2 ik6 2k 2k5 3ki 4k Sk 6k3 8k 10k 12k 16k 20k Note The log graph displays the combined effect of low pass filter equalization and high pass filtering 4 1 4 Parametric Equalizer Available in 2way PEQ 4way PEQ versions e EQ band selection Select one of the 6 x Parametric equalize
4. Infinity Infinity IN ERT IN ERT 4 1 7 Advanced Plug in features For those of you wishing to experiment with your custom filter programming miniDSP provides an easy interface for custom biquad programming A lot of readily available information can be found online and the reader shouldn t expect this user manual to provide the basics about biquad b 13 b 19 programming For more info google Biquad filters digital filters eq cookbook The advantage of the Advanced mode remains the flexibility miniDSP provides in allowing you to build any custom filter e g cascade filter Linkwitz transform high order filters etc with a simple programming user interface as shown below How to use the advanced mode First and foremost you will need understand that biquad coefficients can represent a wide range of filters e g LPF HPF PEQ high shelv etc Using the biquad calculator you can easily calculate these coefficients without the need of any external software Building a cascaded filter configuration is a child s play MINI DSP 4 WAY CROSSOVER ADV V2 Biquad Calculator biquadi bO 1 0049819589501057 b1i 1 9934044481004058 b2 0 9884396486667729 ai 1 9934116680586003 a2 0 9934143876586842 PEQ interface for basic vs Advanced mode Basic Advanced PARAMETRIC EQ BAND 1 Filter type Frequency 20 ee Basic Advanced PARAMETRIC EQ BAND 1 ao i b 1 Filter interfa
5. Potentiometer in place Note If the potentiometer is not in use make sure to disable this feature otherwise causing a very low volume mirn id s p 2 4 5 12S connectivity I2S also known as Inter IC Sound is an electrical serial bus used to interface digital audio devices together All MiniDSP products MiniDSP kit I O cards have full 12S connectivity to allow end users complete design freedom In a configuration with miniDSP miniDIGI and miniAMP all 12S configuration was engineered for a plug amp play configuration However in the case of using your own external devices 12S will need to be configured to insure correct configuration I2S is NOT a plug amp play protocol and comes in a wide range of clocking ratio settings miniDSP support structure ends at the support of our product In other words users wishing to connect external i2S devices to our MiniDSP kits should be fluent in electronic and knowledgeable enough to understand basic concepts of digital electronics For more information please read the I2S technical note available in the download section of our website 2 4 6 DSP bypass reset button A reset button is available on board and will bypass all processing by the DSP IC If pressed once miniDSP LED will stop flashing indicating that the processing stalled and that miniDSP is in reset mode To initialize again the DSP press the button again to get back to the default mode of DSP mode active LED flashing While
6. ee cccceeeeceeseeeeeeeeeeeeeeaeeeeeeeeeeeeseaueeesaeneeeeseeeees 10 PAO ISB COMMCCIVINY ccostcdccddecsceuedicacectsceusdnvssahtcconnceedciniveddscnecee iseesibbasexccuaincvosubdceusveaueredank 11 PGI COMMON AU OM sessirnir iaae ia a ASRAON EEES RENNER EE KASEN 12 Typical plug in architecture as iisicvenecnssesiesesdscexnsuancenicedacanaste deat dwuddvavesasaenedcbanceuwsuadaweieedinessaeaneaencaie 13 m Audio SCUUMNGS cuhsrensansantindceiincesctearaeicutaaoescnsyeuniesbonenenstouunbiahanensahsinoehstbasapsdgahecsataaescceuwariaate 13 4 1 1 Inputs and RMS meters Available in all plug inS ccccceeceeeseeeeeeeaeeeeesaeeeeeeneeeees 13 4 1 2 High and Low pass filters Available in Mixer 2way Xover 4way plugins 14 4 1 3 Graphic equalizer Available in Mixer 2way 4way Xover Graphic EQ version 15 4 1 4 Parametric Equalizer Available in 2way PEQ 4way PEQ versions cc s0scee 15 4 1 5 Matrix mixer controls Available in Mixer plug in ONLy cccccseeeeeeeeeeeeeaeeeeeeaeeeees 16 4 1 6 Output Controls for Gain output level delay and phase All plug ins 16 4 1 7 Advanced Plug in features ccccccccccsssececceeseeccseseeeceeuseecceaseeecseseeecseseesseeeesssageees 17 4 1 8 Room EQ Wizard REW integration Advanced software only ccccseeceeeseeeees 18 4 2 System settings Available for all PIUQ INS cccceecceeceeeeeeeeeeeeeseeeeeeeseeeeesaee
7. it is a handy feature to test certain configurations beware that in DSP bypass mode the audio IN1 amp 2 are routed directly straight through to output 3 amp 4 We therefore recommend not pressing the reset button unless you exactly know what you are about to do 2 4 7 Stacking miniDSP with I O cards Before stacking a miniDSP card to a miniDIGI or miniAMP please make sure to carefully read their user manuals since the following section will only cover setup of the miniDSP board Complete jumper charts are available online describing in very clear all jumper settings required for each board Located in the center of the board the MCLK jumper configures where the Master Clock comes from Two settings are available depending on the card stacked on top of a miniDSP Master MCLK mode Position the jumper here with miniDSP standalone OR miniDSP miniAMP Slave MCLK mode Position the jumper here with miniDSP miniDIGI configuration ma HHHH nnr mara E ap Eja se cih a CI Ea tt Jumper in MCLK Slave position mm Jumper in MCLK Master position default OO OO SERERIGEG SERESESI I 6 mjejujujujuj ujujujujujuj ujujujujujaj WOOO OO marn id s p Important Note This user manual only describes the configuration of a miniDSP kit For a stacked configuration please make sure to download the user manual of miniDIGI miniAMP Configuration with any external I O cards will require a specific jump
8. the current configuration on Restore your MiniDSP back to configuration to the MiniDSP board your PC Remember to save as a factory default Warning this step xml file format will clear all configuration settings ANALOG DIGITAL INPUT Toggle between the on chip ADC or 12S input signal Analog input Digital input 125 4 2 1 Load configuration Use this feature to load a previously saved configuration The file must be as xml format and previously saved from this plug in For complexity reasons inter plug in compatibility is not available 4 2 2 Save configuration Click on this button to save your audio settings configuration The following dialog box allows you to save the file anywhere on your PC as a xml format Save in B Backup MiniDSP e m c E My Recent Documents File name backup xml v Save eg A s My Network Cancel Places Warning Remember to save the file as xml file extension e g file saved as backup xml Otherwise the software will not recognize the file at restore 4 2 3 Restore Clicking on this button will restore the board back to factory default All settings will be lost during this process 4 2 4 Analog Digital input Using this toggle button one can select the audio source of the DSP plug in o Analog input ADC input of the miniDSP is selected as a plug in audio source o Digital input 12S input typically 12S DATA_IN7 amp 8 is selected as a plug i
9. Vrms 4V rms in input input mews p 2 4 4 Master Volume Control Master manual volume control of all output channels can be done with an external 10k linear potentiometer instead of through the software One or multiple miniDSP boards can be connected to a single potentiometer for master volume control of multiple channels Warning All connection between the board and the potentiometer shall be done with the board turned OFF to prevent any damage to the electronic See below diagram on how to connect the potentiometer directly to the connector If your volume control behavior is reversed clockwise decreasing volume simply swap Ground and 3 3V connection on the potentiometer Potentiometer Diagram iin aah Fi L nps rA k ro Ground aS Center tap ag oo CTC a one Gs As mentioned earlier on a single potentiometer can control the master volume of multiple miniDSP kits 2 and up Making it work simply requires connecting together the potentiometer to all boards as shown below miniDSP kit 1 miniDSP kit 2 The last step to enable the external volume control is to toggle the Potentiometer button in the system settings from its original default position Volume control disabled External Volume Control Enable only when potentiometer in place External Volume Control Enable only when potentiometer in place Volume Control Enabled Default position External Pot not in place External
10. ce for basic vs Advanced mode mews p 9 Basic Advanced Basic Advanced LOW PASS FILTER SETTINGS Cut off frequency a Filter Type Bypass filter HIGH PASS FILTER SETTINGS oe 100 Cut off frequency Filter Type Bypass filter Note In the filter mode the software interface expects the 8 biquads to be filled in such format biquad1 b0 0 00004232437545981 1486 b1 0 00008464875091962297 b2 0 00004232437545981 1486 a1 1 975933280159253 a2 0 9761025776610925 biquad2 b0 0 00004232437545981 1486 b1 0 00008464875091962297 b2 0 00004232437545981 1486 a1 1 975933280159253 a2 0 9761025776610925 biquad8 b0 0 00004232437545981 1486 b1 0 00008464875091962297 b2 0 00004232437545981 1486 a1 1 975933280159253 a2 0 9761025776610925 4 1 8 Room EQ Wizard REW integration Advanced software only Also available uniquely for the Advanced biquad product series is the integration with REW software By combining a measurement software with our miniDSP kits it basically allows custom biquad filters generated by the AutoEQ function of REW to be inputted inside the miniDSP software For more information please consult the REW software user manual and EQ device section marn id s p 4 2 System settings Available for all plug ins The system settings page contains the following controls SYSTEM SETTINGS LOAD CONFIGURATION SAVE CONFIGURATION DEFAULT CONFIGURATION Load a previously saved xml Save
11. eeesseaeeeesaees 19 4 2 1 Load OT TNC ANNAN peptide nce tea deen tne ee sae tinea elie ee narons sence acetate E OE 19 EZ Dave COnNNguU aU ees n E tcc aden ened s EE cee emanate 19 4 2 3 BRS OM ceo occ nt utd nse ects E cama yasden ia E A 19 ee AMOO IQ GAN WOO vias creepce ccc renee scvacend E E acer 20 mirn id s p 1 System setup Minimum System Requirements for software installation MiniDSP controller software runs in a PC environment with the following minimum requirements Software e Microsofts Windows Vista SP1 XP pro SP2 e Microsofts NET framework v3 5 e Adobe AIR environment latest version e Adobe Flash player latest version Hardware e PC with 1GHz or higher processor clock speed recommended Intel Pentium Celeron family or AMD K6 AMD Athlon AMD Duron family or compatible processor recommended e 256 megabytes MB of RAM or higher recommended e USB 2 0 port e Keyboard and mouse or compatible pointing device Package content Your miniDSP kit includes e 1x miniDSP balanced board pre assembled and packaged in an ESD bag e 1x miniUSB cable e Step by Step startup guide Not included in the kit but required for normal operation e 1x12VDC external DC supply with at least 150mA Disclaimer Warning An incorrect miniDSP configuration could easily damage your audio system MiniDSP can not be responsible for any damage that may result from the improper use of this kit As with any other prod
12. er configuration To simplify your task our team assembled some template configuration under the 2way or 3 4way jumper chart documents Please consult the download section of the miniDSP website for more info 2 4 8 USB connectivity For integrations requiring a panel mount USB connector the miniDSP kit includes a 5 pin 0 1 2 54mm pitch connector at the rear of the on board USB connector Such connectors are very typical in the computer industry and look as shown below Although a standard connector you should confirm the pin out with your manufacturer or you could easily cause damage to your computer or miniDSP kit Pin out should be Pin1 Vcc 5V Pin2 D Pin3 D Pin4 Gnd Pin5 Gnd In most cases the pin4 5 can be identified by a black wire but once again DO check with the spec of the connector to prevent any short circuits mands p 3 Plug in configuration 1 Before connecting the MiniDSP board to the PC you need to install the plug in software that was downloaded from the plug in section of our online store Please refer to the download instructions sent to you by email on the day of shipping of the board 2 Asper the system requirements the following frameworks need to be installed o Microsofte NET framework v3 5 PC only o Adobe AIR environment Mac Win o Latest version of Adobe Flash player Mac Win Connect the miniDSP to your external 12VDC supply Once the software installed connect
13. ion H ER t _ o Jumper in M Master position Master Slave EN x jumper H Reset Button OUTI OUT2 OUT3 OUT4 Volume control Header Output RCA connectors Expansign Connector 1 Expaiysion Connector 2 Pin Description Fin Description Pin Description I 4 Ground Analog out 4 2 Analog out 3 E 20 Reserved Pin 3 Analog out 2 Could cause damage 4 Analog out 1 if used improperly 5 Ground 22 24 Ground 6 Ground 7 Ground 25 27 External DC input 8 Ground 12 18VDC 7 MCLKIN 10 I2S_ DATA_IN1 amp 2 26 28 Reserved Pin T 11 I2S_DATA_IN3 amp 4 DONER 7 7 PIN2 PIN 2 Potentiometer input 13 I2S_DATA_IN788 10k 100kQ 14 I2S_IN_LRCLK 15 I2S_IN_BCLK 16 I2S_ DATA_OUT1 amp 2 17 I2S_DATA_OUT384 18 I2S_DATA_OUT5 amp 6 19 IS2_ DATA_OUT7 amp 8 20 2S OUT_LRCLK 21 2S OUT_BCLK 23 GND 22 3 3V 25 GND 24 3 3V 27 Analog In 1 eo GAD 28 Analog In 2 mews p 2 4 Typical connection diagram The following diagram is a typical connectivity diagram for a basic setup with analog inputs analog outputs To prevent any damage make sure the board is turned OFF before doing any connection modifications MiniDSP Balanced Kit Active loudspeakers A V receiver Multi channel amplifier To OUTPUTS Recording devices oar For more information about 2way or 3 4 way configurations please consult miniDSP Application section 2 4 1 minDSP Balanced Kit Power options Unlike miniDSP unbalanced kit that are USB self powered miniDSP Bala
14. n audio source In cases where miniDSP is stacked with a miniDIGI card SPDIF Toslink input digital input must be selected as the audio source ANALOG DIGITAL INPUT Toggle between the on chip ADC or 125 input signal Analog input Digital input 175 man id sp The following symptoms were found to be the most likely cause of issues Symptoms Troubleshooting recommendation If not solved go to tem No audio on outputs Make sure that audio signal is shown on the RMS input meters Double check that input amp output mute buttons are not greyed out mute ON Confirm that master mute is disabled 2 No audio on RMS Check your connectivity 10 input meters Double check the strength of your input signal Confirm that master mute is disabled 3 Audio on input RMS Make sure the matrix mixer is set to send 10 meters but no audio audio to the output channels on outputs Check the output mute status for each channel t oogst Confirm the file format of your file xml mae configuration Confirm the version of the file Cannot connect to If using external DC supply try connecting the the board board with USB power instead Make sure the blue LED is illuminated P scare Confirm that you installed the required ae software frameworks Adobe Air Microsoft net SP2 XP Problem unsolved by Have a look at our forums to see if someone above suggestions else already had this issue Send us an email info minid
15. nced kit requires an external DC supply to operate correctly Two modes of operations exist e n standalone mode miniDSP balanced requires a 12V DC 200mA connected to the Power supply connector of the miniDSP as shown below Ground ED _ 12VDC a as mara a ee BEEE e n a stacked board configuration miniDSP may receive power from boards above such as miniDIGI or miniAMP Note that in this case a voltage divider allows a wider range 12 18VDC 200mA if power is powered to the stack No additional supply is required for the miniDSP Warning To prevent overheating of the onboard LDO do not exceed 18VDC supply to power the whole stack 2 4 2 Audio Input Output connectivity miniDSP can accept both balanced and un balanced audio inputs outputs See the below instructions for audio connectivity on your miniDSP Balanced kit e Balanced connection In Out Follow connectivity as shown on underside of the board o S gt Cable Shield o gt Positive cable o gt Return cable e Un balanced inputs outputs Note how a jumper is required between S and 2 4 3 Sensitivity Jumpers One of the strong advantages of miniDSP Balanced is the ability to tune the input sensitivity of the board to fit your needs From a maximum input capability of 0 9Vrms to 2Vrms a simple jumper change is all that is required to modify your board See below diagrams for more info come RAA nooo ae High sensiti
16. of Input window for 4way plug ins INPUTS Volume and RMS meter CHANNEL SELECTION INPUT CHANNEL lad of Select which channel 10 Left or Right you want to filter 20 30 Input 1 Left 40 input 2 Right 50 60 70 Infinity MUTE Click the Next button to switch windows OR click one of the control toolbar buttons A darker color indicates the current active tab Parametric EQ Ouput 1 Parametric EQ Bam Delay Gain RMS Outputs 1 amp 2 Parametric EQ Ouput 2 Input Gain Parametric EQ Ouput 3 m Parametric EQ Crossover Delay Gain RMS Outputs 3 amp 4 Parametric EQ Ouput 4 4 1 2 High and Low pass filters Available in Mixer 2way Xover 4way plugins Controls for the Low and High pass filters are very much similar e Cut off frequency Select the 3dB frequency by either entering the value or using the up amp down arrows of the numeric box e Choose one of the three filter types o Linkwitz Riley LR Available in 12 24 48dB oct o Butterworth BW Available in 6 12 18 24 30 36 42 48dB oct o Bessel Available in 12dB oct Each filter has different phase and amplitude characteristics We recommend you to look online for more information about the specifics of each filter e Bypass button allows you to disable the filter Enabled by default Make sure to bypass the filter if you do not need a low pass filter 2 WAY CROSSOVER CH1 BandPass filter OUT1 LOW PASS FILTER SETTINGS
17. os p miniDSP Balanced Kit USER MANUAL V1 4 E a A V1 0 User manual Initial version 24 09 2010 V1 1 Sensitivity Jumper clarifications 24 09 2010 V1 2 Updated various sections 23 12 2010 V1 3 Input Output sensitivity tables 23 03 2011 V1 4 miniUSB 5 pin connector 25 08 2011 1 2 man id sp Table of content VSS UE ents po E E EEA AEE EA E IEE A E aoe sone E E 3 MNO SPB ASICS oaea a E A A ER E E E RN 4 Be Nats a MIMI Ol eraa AARE a EEA AASA AAAA ERARA AORA 4 Bee MINI SP programming ssas aeaiiai aaa AEEA AAAA ETARE AENA 4 BS Board CONNEC UVIY sssrin aa A EE a RAAE AERA AAEE RSE RRRA RAAE 5 ZA Typical connection diagram cccccesecesssececseececssececseeesoueeceouerenauarescuarenaueceeeeessuarensuarenauass 6 2 4 1 minDSP Balanced Kit Power Options cccccceeccceeececeeeeeeeeeeeseeeeeseeeesseeeesaeeeesaeeeees 6 2 4 2 Audio Input Output connectivity 0 0 0 ccc eecccceeeeeeeececeeececeeeeeseuceeseuceeseeeesseeeseeeesaes 7 DAS Sensitivity JUMPCNS srcrececentctcwusieg dranie en inian e aai eiaa aa EEan oa ES aiaia a 7 2 4 4 Master Volume Control vistiiicccacsies seaninteicssinndinalswaienan aiwentieg suausiulesiuaadestnedaieaadeeatentnaunbusndelendless 9 2 4 5 ZO MS IY terse Sc epee A eee pret E OE ecee mee avec nog ees O eee meee eles 10 2 4 6 DSP bypass reset button ccccccscccccesseeeceeseeecceececseueeessaeeecseaeeesseuseeessseeessageees 10 2 4 7 Stacking miniDSP with I O Cards 0 0
18. r plug in turned to On line mode Warning that it will overwrite whatever configuration was previously loaded on the board If you d like to load a different configuration click cancel and go to the settings tab to load one of your previously saved configurations Note If you previously installed a different firmware version on your kit this button will display Synchronize amp Upgrade Meaning the MiniDSP kit firmware will be upgraded to the current plug in firmware along with the current settings you have b Restore to Default With this option the software application resets all settings back to factory default and reload the firmware Warning that all current settings will be lost and there are no ways to be able to recover them c If in any doubt click the Help button to refresh your memory on these choices or click Cancel to be able to go back to the offline mode In either synchronization steps the following dialog box will pop up It s very important that you do not un plug the board in the middle of a firmware upgrades or you may corrupt the configuration Loading configuration to the board Please do not un plug the board or close the application 7 Once the board fully synchronized a Successful connection to the board message pops up From this point on all changes to the configuration will be real time and live therefore giving you the chance to hear the effect of your equalization filtering tuning
19. rs e Filter type Select between Peak Low Shelf High Shelf Bypass Disables the equalization but doesn t reset the settings A handy tool to check the influence of equalization on your system without resetting to zero Note that the bypass button is per band Bypass not overall mews p PARAMETRIC EQUALIZER INPUT CHANNEL 1 20 50 10000 20000 EQ BAND SELECTION EQi Freq 5002 PARAMETRIC EQ BAND 3 EQ2 Freq 808 Filter type EQ3 Freq 165 Frequency 166 A Gain 6 05 n Q 1 99 n EQ4 Freq 20 a A EQS Freq 20 EQ6 Freq 20 4 1 5 Matrix mixer controls Available in Mixer plug in only A matrix mixer object allows a set of inputs to be mixed to a set of outputs In the MiniDSP case there are 2 inputs rows and 4 outputs columns By default Input 1 goes to Output 1 amp 3 while input 2 goes to channel 2 amp 4 MATRIX MIXER OUT 1 OUT 2 OUT 3 OUT 4 o 60 o 60 If for example you would like to mix input 2 to output 4 increase the volume of this knob since it represents the crosspoint between Input Row 2 and Output column 4 4 1 6 Output Controls for Gain output level delay and phase All plug ins The output section will allow control of time alignment delay phase and gain See below typical screen shot of the interface OUTPUTS 1 and 2 OUTPUT CHANNEL 1 OUTPUT CHANNEL 2 Output delay in ms Output delay in ms 0 7 5ms 0 7 5ms B o B Distance 0 034 meters Z Distance 0 meters Polarity Polarity
20. sp com with a clear explanation of the symptoms and descriptions of the troubleshooting steps you already performed
21. the MiniDSP board to a USB 2 0 port of your PC using the provided mini USB cable The device will be recognized as a HID driver and does not require any driver installation Note A blue LED in the center of the board will flash at a rate of 1Sec on 1 sec off once the board is correctly powered 5 Open the software application to gain control of the board Please read carefully the following lines By default all plug ins start in offline mode meaning changes made on the user interface do not affect your configuration It is designed in such a way that you can visually confirm your configuration before loading it to the MiniDSP kit You should also know that plug ins can only synchronize from PC to board and are not able to retrieve a configuration from the kit It basically means that if you really like your configuration make sure you save it somewhere on your hard drive more to follow below to be able to reload them at a later time 6 Once the configuration checked you can go online by clicking the Connect amp Synchronize button as shown below AUD gon e Synchronize Y Providing your board is connected to the PC with a USB cable the following important dialog box pops up with 4 options A miniOSP kit with Serial 900026 was detected Please choose from one of the following options a Synchronize With this option the current plug in configuration will be loaded flashed to the MiniDSP kit and you
22. uct we do recommend that you carefully read the manual and other technical notes to insure you fully understand how to operate the board As a general guideline you should first configure your miniDSP board before connecting anything to the outputs of the MiniDSP kits loudspeakers other output sources Doing so will make sure that you have the software correctly configured and won t cause any damage to your system Once again miniDSP can not be responsible of any damages the board make cause to your system Finally MiniDSP is a very flexible board and 99 of typical questions we receive at the tech support department are already answered in this user manual So please take the time to carefully read this user manual Thanks for your understanding mews p 2 miniDSP Basics Before diving into the details of this board it is important for you to fully understand what a miniDSP does and how it can be useful to the setup of your audio system The following section will highlight basic concepts of a miniDSP kit 2 1 What is a miniDSP miniDSP is a Digital Audio Signal Processor capable of performing a wide range of applications from filtering equalization muting time alignment etc The control of the device is performed from a software application so called a plug in which provides control of the board settings over USB Only one plug in can run on a miniDSP board at a time and only one miniDSP board can be controlled at a time
23. vity Max 0 9Vrms Low Sensitivity High sensitivity Low Sensitivity Max 2Vrms Max 0 9Vrms Max 2Vrms With the miniDSP balanced used in a wide range of applications balanced unbalanced a clarification is in order on the expected levels depending on the jumper configuration and type of signal We will assume in the following section that you understand the nature of a balanced or unbalanced signal Please do a Google search for more information o Balanced input signal table o QUTPUTS Jumper Unbalanced Balanced aca position max output max output signal 0 9Vrms 2Vrms 2Vrms 2Vrms 2Vrms 2Vrms Note that the miniDSP Balanced kit is by default configured for this setting o Unbalanced input signal table When feeding an unbalanced signal to a balanced input you will only drive one leg of the operational amplifier Therefore the 0 9V 2Vrms jumper setting has a different meaning o 0 9Vrms position Board capable of a maximum unbalanced input signal of 1 8Vrms before reaching saturation OdBFs o 2Vrms position Board capable of a maximum unbalanced input signal of 4Vrms before reaching saturation OdBFS The below table summarizes the expected outputs based on an unbalanced signal I ourpUTS Jumper Unbalanced Balanced position max output max output 0 9Vrms 2Vrms 2Vrms Unbalanced Max with 2Vrms_ with 2Vrms Input signal 2Vrms in input input 2Vrms 2Vrms 2Vrms Max with 4Vrms_ with 4
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