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1 x 100 Watt Class D Audio Amplifier Board w DSP - JAB3-1100[724]

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Functional Cables Kit For The Connection Between JAB2 With JAB3 (JAB accessories)



L-style Aluminum Bracket (JAB accessories)



3S 18650 Lithium Battery Charger and Balance Protection Board - BCPB2




JAB3 – 1100 is an All-in-one mono Class D audio amplifier board integrated with high performance DSP – ADAU1701, outputting 100W into a 2Ohm load based on Texas Instruments TPA3116 chip. With the integrated DSP chip, JAB3 can be applied to various DIY audio, commercial or industrial applications such as digital crossover, bass enhancement, loudspeakers, kiosk, etc. After connection with WONDOM programmer – ICP series, JAB3 supports programming with SigmaStudio, remote control through APP or PC UI.

Demo program of JAB3: video link

Open-sourced firmware of JAB3 for restore factory settings: video link

Video for how to achieve I2S input and output of JAB3: video link

Video for introduction of JAB3: video link

Video for connection with JAB2 and APP control: video link

Video for reprogram DSP with SigmaStudio: video link

Miumax Download link for Android Phone: video link

Miumax Download link for iOS Phone: Please go to APP Store and search “Miumax” directly.

PC UI Miumax for JAB3 download link: video link

Integrated with DSP

The on board fully programmable 28-/56-bit audio DSP ADAU1701 from Analog device is competent in various signal processing applications. This process can compensate for real-world limitations of speakers, amplifiers, and listening environments, providing dramatic improvements in perceived audio quality.

Four potentiometers are provided on JAB3 for real time hardware control of the whole audio system for volume, gain and high / band pass filter.

Supporting SigmaStudio Program and Remote Control

Different applications have unlike requirements on audio as the speakers, the environment and the preference are different. To give customers better control of audio systems, Sure Electronics has released In-circuit programmers (ICP series), with connection of which, you can program DSP with SigmaStudio or remote control the system with APP or PC UI.

We have developed an APP – Miumax for remote control, with which, you can adjust volume, gain, frequency and EQ setting. PC UI is also available for different applications as digital crossover, bass enhancement, subwoofer, and so on.

Sure Electronics has provided open-sourced files for customers to start the project quickly. You can download on the “Download” part.

High Quality Audio Performance

Thanks to dedicated PCB layout design and engineers’ attentive debugging, this JAB3 - 1100 audio amplifier board features high audio performance, whose SNR is 88dB and THD+N performs well as 0.03% @ 2Ohm, 1W, 200Hz.

Low Power Consumption and Long Playback Time

Power management system and Signal level sensor system are employed on JAB3 for low power consumption. We have preset a threshold on the input voltage of the signal. When there is no signal detected in 5min, JAB3 would enter into standby mode automatically.

This JAB3 - 1100 audio module dissipates only 150mW in standby mode. The extremely low power consumption ensures long playback time especially when JAB3 - 1100 is powered by battery boards, which is absolutely an advantage for portable Bluetooth speakers.

Supporting Battery Power

A DC10V-26V power supply is required to power JAB3 - 1100.

In addition to power supply, JAB3 also supports battery power, which greatly improve the portability and flexibility of audio systems.

Please kindly noted that MPPT circuit is not employed in JAB3. So JAB3 cannot be used to recharge batteries. If you only buy JAB3 and want portable battery power, it is recommended to use WONDOM Battery charging, protection and balance board – BCPB series. If you have a JAB1 / JAB2 at hand, you can use the WONDOM Battey charging and protection board (JAB – BE, AA-JA11113) for power.

Easy for Installation

Four screw holes provided make this Bluetooth amplifier board easy for installation and quick for integration in any cabinet. We provide a Functional cables kit (JAB - FC) for your convenient operations. Furthermore, a 3.6’’ x 2.7’’ L-style aluminum bracket (JAB - LAB) is available to fix the Bluetooth amp in wiring process and to install the board to cabinets.

Build Audio 2.1/4.0 system with Bluetooth and DSP

JAB2 can connect with mono JAB3 to build an audio 2.1 system or connect with stereo JAB3 to build an audio 4.0 system. This built system will be integrated with both Bluetooth and DSP, suitable for portable Bluetooth speakers and digital crossover applications. A Functional cables kit (AA-AJ11116) is released for your convenient connection. As for the connection, please kindly take the .

Package Include

1pc AA-JA31181, JAB3 - 1100

1pc power supply cable

1pc stereo speaker cable

1pc 3.5mm AUX IN cable

  • StyleBoards
  • Number Of Channel(s)1
  • Output Power100
  • Size3.6 x 2.7 inches (91.44mm x 68.58mm)
  • ChipsetTPA31xx
  • Heat DissipationHeat Sink
  • Supported Parallel Bridge Tied Load ModeNO
  • inputSingle ended Line-in,
  • Power Voltage12V-26V
  • 100W@2Ohm, THD+N= 1%, 200Hz
  • 36 x 2.7 Inches PCB Size
  • Battery Board Supported
  • DSP Integrated
  • Gain of Speaker Output Adjustable
  • Band-pass Filter of Speaker Output Adjustable
  • High-pass Filter of 3.5mm
  • Headphone Output Adjustable
  • Volume of Speaker & 3.5mm
  • Headphone Output Adjustable
  • Signal Level Sensor System
  • External 3.5mm AUX IN Port
  • Power Switch Port
  • Compatible with JAB2
  • 3.5mm Headphone Output
Specifications typical @ +25℃, powered by 24V DC. Specifications subject to change without notice.
Parameter Conditions Min. Typ. Max. Units
Number of Channels - - 1 - -
Minimum Load Impedance - 1.6 2 - Ω
Efficiency 100W@2Ohm   84   %
Nominal Power Requirement @24V, 200Hz - 150 - W
Operating Voltage @200Hz, 2Ohm 12 24 26 V
Idle Power Signal detected - 2 - W
No Signal detected - 80 - mW
Switching Frequency SD Floating@24V - 400 - kHz
Power Consumption 1/4 of max output power@2Ohm, 24V, 200Hz - 35 - W
1/8 of max output power@2Ohm, 24V, 200Hz - 20 - W
 Control Standby (Low = inputs enabled) High-level Input Voltage 3.3 - - V
Low-level Input Voltage - - 0.8 V
Mute (High = outputs enabled) High-level Output Voltage 3.3 - - V
Low-level Output Voltage - - 0.8 V
Standby Power SD short to GND, only when low power module available - 150 - mW
Under Voltage Protection - 10.0 10.4 10.8 V
Specifications typical @ +25℃, powered by 24V DC. Specifications subject to change without notice.
Parameter Conditions Min. Typ. Max. Units
Amp Gain @2Ohm, 200Hz - 26 - dB
DSP Gain SE1 (Single Amp) @2Ohm, 200Hz -60 - 10 dB
SE2 (Headphone) @2Ohm,200Hz -60 - 2 dB
Input Sensitivity 100W@2Ohm, 200Hz, 26dB - 770 - mV
Filter Gain Butterworth, Q= 0.707 - 4 - dB
Cutoff Frequency   HFP 60 - 120 Hz
LFP 200 - 400 Hz
SNR 100W@2Ohm, THD+N=1%, 26Db, A-weighting   88   dB
THD+N 1W@2Ohm, 200Hz, 26dB   0.03   %
10W@2Ohm, 200Hz, 26dB   0.05   %
Input Impedance -   10  
Supported Sampling Rates - - 48 - kHz
Output Noise Level A-weighting, Input Connected to GND, 26dB   240   uV
DC Offset -   20   mV
Max output Level J3, 3.5mm Headphone Output Connector   4.5   dBu







30 Jul 2022

Hello! I have issued with the standby in jab3 100w and external 2.0 amp. Is possibile to bypass the signal standby? Everything work fine but after 5 minutes of no sound, the speakers on external 2.0 amp bumps and the dsp reset the sound. I have to turn off everything, waiting and reboot for have the saved dsp config. Can I short RST with +5v for bypass the signal input standby? Thank you

Hi, Michele. JAB3 is equipped with signal level sensor system for lower power consumption. You can short circuit "RST" and "VIN" of J4 to turn off this function if you require. Wish this could help you. Have a nice day~


12 Apr 2022

What do the two orange LEDs on the board mean?

Hi, nadir. The two LEDs are power indicator and signal indicator. D6 is signal indicator and D19 is power indicator. Wish this could help you. Have a nice day~


04 Oct 2021

Hello, I can't connect jab3 mono to jab5 using the i2S protocol. I used video. I tried both with MCLK and without. JAB3 is only receiving terrible interference. Via line input works fine, but I want via I2S. Help me please.

Hello. It is not suggested to connect JAB3 with JAB5 as it is difficult to synchronize their clock signal. You can connect JAB5 with 2CH amplifier board - TAS5754 via I2S. Wish this could help you. Have a nice day~


29 Apr 2021

Can this board function as a full-range (20-20,000Hz, for example) amplifier or is it only meant to be a subwoofer amplifier (20-200Hz)? I did a basic connection test, but dit not hear any mid-high range frequencies. If I need to use the DSP to enable it, please let me know. Thank you.

Hello, John-Marc. JAB3M is designed as subwoofer, for connection with JAB2S to build 2.1 system. If you want it function as full range amplifier board, you can download the program in the following link. http://store.sure-electronics.com/images/documents/JAB3_MONO_FullRange_2021.04.30.zip Please note, after downloading the program, JAB3M would not support APP control function. Wish this could help you.


03 Apr 2021

Hello, I am having issues with the icp3 board, as soon as i plug it to the 2.1 system, the sound shuts down. Also the app doesn't recognise the jab 2.1 set up. I've checked my connections a few times, even changed the icp3 board but still have the same issues. could you help me please, i ran out of options and my client is waiting on his speakers.

Hello, luka. Please kindly check as follows: 1. Confirm whether JAB3 can work normally when it is used separately without ICP3. 2. Make sure that ICP3 is connected to JAB3 before JAB3 is powered up. 3. If you are using Miumax in Android version, please open the Bluetooth location permission, which is requested by the Bluetooth protocol. If there is still problem, could you please kindly send a video or pictures to store@sure-electronics.com so that we can help you solve it? Wish this could help you.

helge dorby.hansen

12 Feb 2021

Hallo. Can i connect the potentiometer from JAB2 to this, to control the volume?

Hi, helge dorby. Thank you for your interest in our products. You cannot connect he potentiometer with JAB3 to control the volume. POT4 is used for the overall volume adjustment of JAB3. Wish this could help you.


13 Nov 2020

Hello, when using this board with 2 X 50 WATT CLASS D AUDIO AMPLIFIER BOARD W BLUETOOTH VER4.0 - JAB2[640] Do they need there own battery banks?

Hello, Kenneth. Thank you for your interest in our products. The biggest difference between BCPB series and battery boards for JAB (AA-JA11113) is whether they are equipped with charging circuit. BCPB series is equipped with charging circuit and there is no charging circuit equipped on AA-JA11113. In addition, there are more choices of voltage and capacity with BCPB series. If you have JAB2, you can use AA-JA11113 since JAB2 is equipped with MPPT charging circuit. Meantime, BCPB series can used to power them too. In this condition, please use a power supply to charge BCPB directly without connection with JAB2. If you only have JAB3, it is suggested to use BCPB to power since JAB3 is not equipped with charging circuit. Wish this could help you.


24 Aug 2020

Can use 2 of these together 2 make a 2x100watt dsp bluetooth amp?

Hi, Alex. Yes. You can connect JAB3 - 1100 and JAB2 - 1100 to make a 2x100W system with DSP and Bluetooth. Please kindly be noted that you need to configure the output DAC with the SigmaStuido by yourself. You can download the demo program and configure based on that. Wish this could help you.


15 Jul 2020

hello , does the insertion of earphone's jack will mute the main speakers ? thanks Simone

Hi, Simone. The speaker output will not be mute if you plug in the headphone. Wish this could help you.

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