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Table of Contents
What is in the Box? ................................................................................................................................... 4
KAB-2150 Visual Overview ............................................................................................................................ 5
Quick Start and Wiring Guide ....................................................................................................................... 6
Before You Start ........................................................................................................................................ 6
Power Supplies ...................................................................................................................................... 6
Input Modes Description ...................................................................................................................... 6
Outputs ................................................................................................................................................. 7
Quick Start Steps ....................................................................................................................................... 8
Tone Controls .............................................................................................................................................. 12
Treble and Bass Knobs Maximized (turned fully clockwise) ................................................................... 12
Treble and Bass Knobs Minimized (turned fully counterclockwise) ....................................................... 12
Example Projects for the KAB-2150 ............................................................................................................ 13
Powered Bluetooth Party Speaker .......................................................................................................... 13
Add Amplification to Passive Speakers ................................................................................................... 13
Customized Bluetooth Amplifier ............................................................................................................. 13
Add Bass Shakers to your Home Theater................................................................................................ 13
KAB-2150 Specifications ............................................................................................................................. 14
Electrical Specifications ........................................................................................................................... 14
Audio Specifications ................................................................................................................................ 14
Troubleshooting .......................................................................................................................................... 15
My amplifier will not power on........................................................................................................... 15
I have connected my speakers, but I’m not getting any sound
.......................................................... 15
I cannot connect to the device’s Bluetooth
........................................................................................ 15
The audio quality or power from my device is not what I expect ...................................................... 16
My Volume and Tone Controls do not work! ..................................................................................... 16
My Speakers are not getting as loud as I expected ............................................................................ 17
Version History ............................................................................................................................................ 17
Page 1: ...Model KAB 2150 UserManual 2X150WCLASSDBLUETOOTH5 0 AMPLIFIERBOARDWITHTONEAND VOLUMECONTROLS...
Page 2: ...tt class D amplifier board with Bluetooth 5 0 and convenient tone and volume controls This plug and play amplifier comes with all of the wire harnesses needed for quick integration such as a DC power...
Page 3: ...wered Bluetooth Party Speaker 13 Add Amplification to Passive Speakers 13 Customized Bluetooth Amplifier 13 Add Bass Shakers to your Home Theater 13 KAB 2150 Specifications 14 Electrical Specification...
Page 4: ...DC Input Barrel Jack 2 5mm 1 x Bluetooth Pairing Button 2 x Molex Speaker Connector 2x 3 5mm AUX jack for audio input and output 2x LED for Bluetooth and Power status indicator 3 x Potentiometers and...
Page 5: ...5 KAB 2150 Visual Overview...
Page 6: ...rrel jack wiring harness for easy power connection with off the shelf power supplies center positive 2 5mm To prevent a potential spark plug your power supply into the amplifier BEFORE plugging the po...
Page 7: ...50 has two speaker output and are stable down to 4ohm which means it can power most speakers This also means it can power impedances of speakers greater than 4ohm however the efficiency will go down a...
Page 8: ...the speakers will lack bass This can be easily checked by flipping the wires to your speaker and listening again especially for bass response Do not let wires touch while the amplifier is on Attach t...
Page 9: ...ion Once powered on the board s Bluetooth connection will be available on your phone tablet laptop etc and will show as DAKAB in your Bluetooth menu Once connected and music is playing on the source d...
Page 10: ...mes included in the functional cable pack which can be plugged into J102 or J103 to function as a line input for external audio sources See the input devices section above for details about which port...
Page 11: ...r Volume a Bass Filter and a Treble filter when plugged in In the next section you can find graphical results of these filters The bass knob is a peaking filter centered at 100Hz and the treble knob i...
Page 12: ...will not work in Bluetooth Bypass Mode The bass knob is a peaking filter centered at 100Hz which will adjust to roughly 5dB at its maximum and 5dB at its minimum The treble knob is a peaking filter ce...
Page 13: ...B 2150 could be built into an existing pair of speakers allowing them to be used without external amplification The high power of the KAB 2150 would be more than enough power for most Bookshelf speake...
Page 14: ...2150 Specifications Electrical Specifications Specifications typical 25 C powered by 36V DC unless otherwise noted Audio Specifications Specifications typical 25 C powered by 36V DC unless otherwise...
Page 15: ...problems 3 Check the wiring of your speakers Carefully follow the and signals labelled on the board and on your speakers and make sure they are making good connection 4 Check the volume level of your...
Page 16: ...aker is free of damage and that the connection to the speaker is good without any cold solder joints or anything that would cause the connection from the amp to the speaker to be intermittent 6 If you...
Page 17: ...mplifier provide full power 3 If using AUX input to reach the rated power of the amp you need to provide the amplifier a sufficiently high voltage audio input Aux outputs from laptops TVs mobile devic...
