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C.

 

Combining a DSPB Amplifier with a KAB Amplifier 

–

 Quick Start 

This section assumes you have already read the Quick Start guide for the DSPB-250/100 which is directly 
previous to this section. 

1)

 

How to Power the Amplifiers 

a)

 

The easiest method is to parallel the power connectors that come with all DSPB and KAB 
amplifiers (physically tie the red wire for each connector together, and the same with the 
black wire), and wire them to a single DC power jack (while observing the proper polarity 
that your power supply requires).  
i)

 

Alternatively, the end connector of a 12-24V power supply can be cut off and the red 

and black wires of the wiring harness’ can be connected directly to the power supplies 

positive and negative wires. You might find this method to be useful during testing, if 
you want to quickly get them powered and are without a bench power supply, but likely 
not for a finished product. 

b)

 

For battery power, it is recommended to use the KAB-BE battery board, connected to the 
KAB and DSPB in the way the diagram shows below. Note that J9, J10, and J11 all serve the 
same function on the KAB-BE, so you can connect your KAB or DSPB to any of these ports. 
i)

 

NOTE: Only the KAB amplifier can charge the KAB-BE (through J3 on the KAB). The DSPB 
will not be able to charge the KAB-BE.  

 

2)

 

Sharing Audio Between the Boards 

1.

 

Connect J5 on the DSPB amplifier to J11 on KAB amplifier with a 6 pin cable (this connection 
shares the audio back and forth between the boards).  (See the image below) 

2.

 

This connection allows for the following 

a.

 

Bluetooth can be used as an input for the DSPB amplifier 

b.

 

The KAB amplifier’s powered outputs can receive processed signals from the DSPB, even 

when using Bluetooth as a source. 

c.

 

The end result of this connection is up to 4 channels of individually processed audio. For 
an example of how to do this processing, see example 2.E or 2.F in the Sigma Studio 
Examples section for how to utilize the 4 channels of DSP, or simply use the built-on 
potentiometers to make basic adjustments without SigmaStudio. 

Содержание DSPB Series

Страница 1: ...iers 8 2 Sharing Audio Between the Boards 8 3 Switch Control 9 D DSPB K DSPB KE Quick Start 10 E Potentiometer Controls 12 F DSPB ICP1 Sigma Studio Connection Quick Start 13 DAC Assignment Table 15 3 Project examples using SigmaStudio 16 A Creating a basic SigmaStudio project for any product from the DSPB series 16 DAC Assignment Table 17 B Writing to E2Prom Burning custom SigmaStudio programs to ...

Страница 2: ...AB 100M 29 H Example DSPB K DSPB KE 2 1 System 32 I Example DSPB K DSPB KE 3 Way Crossover 34 4 Wiring Diagrams 37 DSPB 100 37 DSPB 250 39 DSPB K 41 DSPB KE 42 DSPB ICP1 43 5 Tips and Troubleshooting 44 A DSPB Tips and Troubleshooting 44 B ICP1 Sigma Studio Troubleshooting 44 C Sigma Studio Tips 45 Revision Log 47 ...

Страница 3: ...eamp and the computer It will also require a Windows PC so you can use SigmaStudio See the examples sections for more specifics about how these devices need to be programmed to achieve this Configuration DSPB KAB DSP Bluetooth Examples 0 1 DSPB 100 Powered Subwoofer with custom DSP 1 0 DSPB 100 Mono Speaker with custom DSP 1 0 KAB 100M Mono Bluetooth Speaker 2 0 DSPB 250 Mono 2 Way Speaker w activ...

Страница 4: ...source device is capable of streaming to multiple Bluetooth devices at the same time Otherwise you would need to split your analog input source A more detailed guide can be found in the examples section B DSPB K KE preamp with DSP Buying Guide Examples The combination of the DSPB K with the DSP KE adds the connections necessary to create a 2 in 3 out DSP preamp system This means that there are man...

Страница 5: ...an on connecting to the DSPB are working properly 4 If planning to use SigmaStudio to use the full potential of the DSP make sure you have purchased at least one DSPB ICP1 a micro USB cable capable of data transfer some cables included with devices that use a micro USB port for power are power only and do not connect the pins necessary for data transfer and make sure you have a Windows PC availabl...

Страница 6: ...cluded 3 5mm jack is connected to the correct pins of J6 ii Check the position of the on board potentiometers that affect gain and high pass filters iii Check that your audio source is functioning correctly iv Check the speaker connections match the corresponding diagram There is a different diagram for the 250 stereo vs the 100 mono v If you attached an ICP1 detach it and do a power cycle 5 Adjus...

Страница 7: ...ction of a DSPB 250 or DSPB 100 with a Dayton Audio KAB board to utilize all 4 DSP outputs of the Analog Devices ADAU1701 processor An example of this configuration is detailed in the Active 2 way guide below ...

Страница 8: ...er it is recommended to use the KAB BE battery board connected to the KAB and DSPB in the way the diagram shows below Note that J9 J10 and J11 all serve the same function on the KAB BE so you can connect your KAB or DSPB to any of these ports i NOTE Only the KAB amplifier can charge the KAB BE through J3 on the KAB The DSPB will not be able to charge the KAB BE 2 Sharing Audio Between the Boards 1...

Страница 9: ...ch Control The following 3 pin connection is critical to make when using these boards together because otherwise there will be a pop sound out of your speakers every few minutes This connection prevents that ...

Страница 10: ...hrough the J2 header and each pin has a clear label on the board under this header 3 Set the switch on the DSPB K to 1 for playback mode 4 If all of the correct connections are made and power is connected the device should be functioning If not a Press the reset button on the DSPB K b Check the position of the potentiometers c Check that your output device is functioning correctly d Check the conn...

Страница 11: ... Studio connection with the ICP1 for nearly infinite custom DSP possibilities i There are sample project files available on the product pages for the devices See the SigmaStudio examples section of this document for further explanation c Connection of a DSPB 250 or DSPB 100 with a Dayton Audio KAB board to utilize all 4 DSP outputs of the Analog Devices ADAU1701 processor An example of this config...

Страница 12: ...d Pass Filter Control POT1 Gain Control J3 J5 Gain Control J3 J5 Sub Gain POT2 High Pass Filter Control J3 J5 Band Pass Control J3 J5 Sub Low Pass Adjustment POT3 High Pass Filter Control for Speaker Output J10 Band Pass Filter Control for Speaker Output J10 Stereo High Pass Adjustment POT4 Master Gain Control J10 J5 J3 Master Gain Control J3 J5 J10 Stereo Gain All filters are second order butterw...

Страница 13: ...ardware configuration menu in SigmaStudio If using an example project skip to step 6 after opening it in Sigma Studio with File Open 4 Find the USBi block in the Communication Channels section of the tree toolbox and drag it in to the white space like shown below 5 Find the ADAU1701 and E2Prom blocks in the Processors ICs DSPs section of the tree toolbox and drag them into the white space like sho...

Страница 14: ...ICP1 it does not indicate that SigmaStudio recognises your DSPB 9 If not already make sure your DSPB is connected to its own power source If the ICP1 is plugged into the DSPB but your DSPB does not have its own power it will light up LEDs on the DSPB making it look like it is powered but it will fail to program and function 10 Once the USB block is green plug the 6 pin connector on the ICP1 to the...

Страница 15: ...elled with the red box in the image below as the image shows Without this step the potentiometers will not work The DAC assignment table below is also elsewhere in this document but will be useful if you intend to create your own SigmaStudio project or modify a sample project DAC Assignment Table DSPB 250 DSPB 100 DSPB KE DAC0 J10 J10 OUTR DAC1 J10 OUTL DAC2 J3 or J5 J3 or J5 N A DAC3 J3 or J5 J3 ...

Страница 16: ...o start from scratch building a SigmaStudio project If you would like to start out with a premade project see the following sections for examples of premade projects The simplest project you could create in Sigma Studio is a project that directly routs the inputs to the outputs but in this brief tutorial we will also add a master gain control Please follow the ICP1 SigmaStudio connection guide and...

Страница 17: ... tutorial we will use a control that can be controlled with one of the onboard potentiometers From the tree toolbox find Single slew ext vol under Volume Controls Adjustable Gain Ext Control Clickless SW Slew Drag this item into the schematic whitespace 4 Right click the SW vol 1 control and grow the algorithm by 1 like shown below This will allow us to pass both input 0 and input 1 through the sa...

Страница 18: ...ave not followed the exact steps of the ICP1 SigmaStudio connection guide your potentiometers might not work as they require additional configuration b Note We are using AUX_ADC_0 for this which corresponds to POT1 but any POT could be used using the drop down menu for the ADC block 6 It is now time to test the program Press the Link Compile Download button shown below ...

Страница 19: ...age can occur by connecting the USB cable and 6 pin programming connector to the DSPB in the wrong order If refollowing that guide does not fix the error see the troubleshooting section at the end of the document 9 Once you have a design that you like by pressing link compile download that design is only saved to your DSP until the next power cycle To permanently save your program follow the next ...

Страница 20: ...pproj that will restore the original firmware if you need It 1 If choosing to do this step it is highly recommended to tie one of the potentiometers of the board to a master gain control demonstrated in Creating a basic SigmaStudio project for the DSPB above Without this it will not be possible to control gain without reconnecting to SigmaStudio 2 By this step you should have successfully created ...

Страница 21: ...5 The program should now be written to E2PROM after it finishes programming This means you can remove your ICP1 from the DSPB and your program should remain after power cycling the DSPB ...

Страница 22: ...OT1 on the DSPB a It is recommended to make gain controllable with hardware but this could be changed to a slider type of control if desired b If you want to use a different potentiometer for master gain simply change AUX_ADC_0 to any of the other options in the dropdown menu C EQ Section SigmaStudio has many possibilities for this section available by navigating through the Tree Toolbox and payin...

Страница 23: ... the KAB board F Super Bass Block This is one of the many advanced algorithms from Analog Devices that can be used on your DSPB This block uses psychoacoustics to increase the perception of bass by adding harmonic content to an existing bass signal Simply delete it and reroute the wires if it is not wanted For further descriptions of this or any other block explore Analog Devices SigmaStudio docum...

Страница 24: ...make gain controllable with hardware but this could be changed to a slider type of control if desired b If you want to use a different potentiometer for master gain simply change AUX_ADC_0 to any of the other options in the dropdown menu C Mixer This section mixes the left and right channels to make a mono signal D EQ Section SigmaStudio has many possibilities for this section available by navigat...

Страница 25: ...dio KAB 250v3 other models could be used for this 3 1 x Dayton Audio Dayton Audio ICP1 4 1 x DSPB EC Expansion Cables 5 A power supply a This could be a single battery board a single 24V power supply or 2 identical power supplies 15 24V 6 1 x Windows Computer Running SigmaStudio 7 PC Board M3 Standoff Kit optional this allows the board to be connected together physically Steps 1 Follow all steps o...

Страница 26: ... block to adjust the PEQ a Note You might need to reflash your board by hitting the Link Compile Download button to hear the results of adding a new filter in the PEQ mode b Results with this PEQ can be dramatic Take caution to avoid overloading speakers c Warning Read the warning at the beginning of section 3 about this block D Crossover Section This section is preconfigured for a test bench set ...

Страница 27: ...udio streaming Required Items 1 1 x Dayton Audio DSPB 100 or DSPB 250 2 1 x Dayton Audio KAB 250v3 or KAB 100M 3 1 x Dayton Audio Dayton Audio ICP1 4 1 x DSPB EC Expansion Cables 5 A power supply a This could be a single battery board a single 24V power supply or 2 identical power supplies 15 24V 6 1 x Windows Computer Running SigmaStudio 7 PC Board M3 Standoff Kit optional this allows the board t...

Страница 28: ...oad button to hear the results of adding a new filter in the PEQ mode b Results with this PEQ can be dramatic Take caution to avoid overloading speakers c Warning Read the warning at the beginning of section 3 about this block D Crossover Section This section is preconfigured for our test speakers but it is fully customizable by clicking the blue icon in the block This will bring up the appropriat...

Страница 29: ... note that you will not be able to utilize the Bluetooth input of the KAB board unless your source device is capable of streaming audio to multiple devices The image above demonstrates the setup for a 3 way speaker By following the quick start guides listed above you should be ready to start programming your DSPB to create the proper crossovers and other tuning you might like to do within SigmaStu...

Страница 30: ... program persists after a power cycle The screen capture below is the mono version of the 3 way project preset and has descriptions of each section below The left or right channel versions of this project type are very similar and are just without the mixer block A Input Inputs 0 and 1 will correspond to the left and right channel of any audio input This could be could through an aux jack on the D...

Страница 31: ...c Warning Read the warning at the beginning of section 3 about this block D Crossover Section This section is preconfigured for our test speakers but it is fully customizable by clicking the blue icon in the block This will bring up the appropriate menu that can be seen below E Output Section This section is configured with the assumption that you are using a DSPB 100 as your woofer and your KAB b...

Страница 32: ...s 1 1 x Dayton Audio DSPB K 2 1 x Dayton Audio DSPB KE 3 1 x Dayton Audio Dayton Audio ICP1 4 1 x Micro USB Cable and a power supply Because of the USB connection this could be a laptop TV dedicated power brick or anything else If you experience issues it s recommended to use a dedicated USB power brick 5 1 x Stereo Amplifier with RCA or 3 5mm inputs 6 1 x Amplifier connect to a subwoofer with RCA...

Страница 33: ...ion The parametric EQ found in Filters Second Order Multichannel allows for visual adjustment of filters and is what we use here but there are many other ways to achieve EQ Click the blue icon in the block to adjust EQ a Warning Read the warning at the beginning of section 3 about this block D Crossover Section This section is preconfigured for a test bench set of speakers but it is fully customiz...

Страница 34: ...using the connections below and a sample project that is also described below Instead of using the DSPB KE for left right and subwoofer signals you instead use them for tweeter mid woofer and woofer signals Eliminating the need for assembling complicated crossover circuits a 3 way crossover can be achieved in a small form factor and changed in real time with SigmaStudio Required Items Item Needed ...

Страница 35: ...above and then follow Writing to E2Prom to make sure your custom program persists after a power cycle The screen capture below is the mono version of the 3 way project preset and has descriptions of each section below The left or right channel versions of this project type are very similar and are just without the mixer block A Input Input 0 will refer to the left input on your DSPB KE whereas Inp...

Страница 36: ...on This section is preconfigured for a test bench set of speakers but it is fully customizable by clicking the blue icon in the block E Dynamic Bass Block This is one of the many advanced algorithms from Analog Devices that can be used on your DSPB Simply delete it and reroute the wires if it is not wanted For further descriptions of this or any other block explore Analog Devices SigmaStudio docum...

Страница 37: ...4 Wiring Diagrams DSPB 100 ...

Страница 38: ......

Страница 39: ...DSPB 250 ...

Страница 40: ......

Страница 41: ...DSPB K ...

Страница 42: ...DSPB KE ...

Страница 43: ...DSPB ICP1 ...

Страница 44: ... the potentiometers corresponding to the high pass filters on the board b If using a stereo board make sure to carefully follow the wiring diagram to ensure your speakers are in phase with each other Wiring speakers out of phase will make them sound incorrect 5 Follow the guides above closely B ICP1 Sigma Studio Troubleshooting 1 Many problems especially connection problems can be solved with a re...

Страница 45: ... additional control for the block a Example a volume controller can be grown to allow for multiple inputs and outputs to pass through a single volume controller This is done in step 4 of the Creating a basic SigmaStudio project for the DSPB guide b Right clicking any slider allows exact values to be entered 4 Hovering over elements in SigmaStudio project files can often reveal useful context about...

Страница 46: ......

Страница 47: ...vision of previous project files Addition of the following guide sections What types of projects can be achieved with the DSPB series What do I need to get started Combining a DSPB amplifier with a KAB amplifier 3 Way Crossover Examples for DSPB 250 100 and DSPB K Addition of pinout descriptions for each wiring diagram Addition of information about default potentiometer controls V1 21 Added a warn...

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