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1 x 100 Watt Class D Audio Amplifier Board with Bluetooth V5.0 & DSP - JAB2v2[764]

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JAB2v2 is audio amplifier board integrated with Bluetooth 5.0 (supporting aptX HD) and DSP, offering a real all-in-one audio solution for customers. JAB2v2 covers 2 x 50W, 2 x 30W, 1 x 60W and 1 x 100W four models. Thanks to the equipped DSP chip, JAB2v2 supports PC UI control after connection with WONDOM ICP5 or higher version(s), through which, you can adjust volume, gain, frequency and EQ setting to customize your own audio. In addition to speaker output, JAB2v2 offers an extra mixed signal output, which can be input to other audio amplifier board to build audio 2.1 / 4.0 system. Customers can configure it into a subwoofer signal by frequency adjustment in PC UI. Besides power supply, JAB2v2 supports battery power, which greatly improves the portability. Wireless audio input, battery power, light weight and high quality audio performance make JAB2v2 perfectly suitable for portable Bluetooth speakers, home audio, garden audio and DIY applications. A DC10.8V-24V power supply is required.

Download Miumax for JAB2v2: link

Video tutorial of realizing PC UI control of JAB2v2 with ICP5 User Guide: link


Integrated with Bluetooth 5.0 module

JAB2v2 employs Bluetooth 5.0 module for audio input, which supports various audio formats as aptX, aptX HD, aptX LL, SBC & AAC and high receive sensitivity with RF power up to 9dBm and -90dBm. There is a built-in antenna equipped on this board. So you can directly pair JAB2v2 with the device to play music. An external antenna port is also provided on the board to ensure the stable connection and high audio performance in such applications that JAB2v2 is installed into a speaker or a cabinet.

Supporting Line Input

In addition to Bluetooth input, JAB2v2 supports 3.5mm line input. Signals from the two input methods will be mixed before being transmitted to the amplification circuit. You can get the 3.5mm AUX-IN cable in the Functional cables kit (AA-JA11114 / AA-JA11116).

Integrated with DSP, Supporting PC UI

Taking customers’ reviews and feedbacks into account, we integrate DSP chip on JAB2v2. Programming port is provided on JAB2v2. After connection with WONDOM ICP3 or higher versions, you can get PC UI control function. Sure Electronics has developed a PC UI, with which, you can try with gain, high/low-pass filter, noise suppressor, bass, frequency shifter and many other effects.

Supporting Battery Power

Beside power supply, JAB2v2 supports battery power. What’s more, JAB2v2 is equipped with MPPT charging circuit. So you can use 3S Lithium battery board (AA-JA11113) to power JAB2v2. When you want to charge batteries, connect the battery board (AA-JA11113) with JAB2v2 and connect a power supply with JAB2v2 at the same time. It is suggested to use a power supply whose output voltage is within DC15-24V and current is higher than 1A to charge batteries.

Mixed Line Output Signal, Supporting configuration as subwoofer

JAB2V2 provides a mixed line output signal, which can be transmitted to other WONDOM audio amplifiers to build an audio 2.1 / 4.0 system. Please note that it’s audio signal, so an amplifier board is required for connecting with a speaker. It is suggested to connect JAB2V2 with JAB3 to build audio 2.1 / 4.0 system. In this condition, it is recommended to use DSP of JAB3 for system control.

Easy for Integration

Bluetooth pairing cancellation function is integrated on JAB2v2. You can disconnect with Bluetooth by one simple press, without worry about which Bluetooth is paired. Shutdown function is also available on JAB2v2. Once you shutdown JAB2v2, JAB2v2 will power off. Ports for External LED indicators are offered to show the status of Bluetooth, power and charging, so you can have an overview of the running condition of JAB2v2.

Optional Accessories

We provide optional accessories for customers’ simple operation. With 3.6’’ x 2.7’’ L-style bracket (AA-JA11115), you can immobilize JAB2v2 in connection and installation stage. You can connect JAB2v2 with the Interface extension board (AA-JA11112) to get a 3.5mm line input port, 2 USB discharging ports with 2.1A maximum current per port, a power switch and indicators for power and mute. Functional cables kit (AA-JA11114) offers all the cables you need for better use of JAB2v2.

Package Includes

1pc AA-JA31182v2

1pc Power supply cable

1pc Speaker 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 Mode/
  • inputBluetooth, Single ended Line-in,
  • Power Voltage12V-26V
  • 3.6 x 2.7 Inches PCB Size
  • Bluetooth V5.0 apt-X HD
  • High Receive Sensitivity with RF power up to 9dBm and -90dBm
  • Supporting Various Audio Decode Formats as APTX, APTX HD, APTX-LL, SBC & AAC
  • Lithium Battery Board Supported
  • Bluetooth Pairing Cancellation
  • Integrated with DSP
  • Supporting PC UI Control after Connection with ICP5
  • Mixed Mono Output Provided
  • Volume Control Port (Potentiometer)
Specifications typical @ +20℃, Powered by 24V DC, unless otherwise noted. Specifications subject to change without notice.
Parameter Conditions Min. Typ. Max. Units
Number of Channels - - 1 - -
Minimum Load Impedance - - 2 - Ω
Efficiency 1x 100W@2Ohm, 1kHz - 79 - %
Nominal Power Requirement @24V, 1kHz - 127 - W
Operating Voltage @1kHz, 2Ohm 12 24 26 V
Idle Power Signal detected - 2.16 - W
No Signal detected - 1.92 - W
Switching Frequency SD Floating@24V - 400 - kHz
Power Consumption 1/4 of max output power@2Ohm, 24V, 1kHz - 32 - W
1/8 of max output power@2Ohm, 24V, 1kHz - 17 - 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 - 240 - mW
Parameter Conditions Min. Typ. Max. Units
Amp Gain @2Ohm, 20Hz - 20kHz - 19.6 - dB
DSP Gain SE1 (Single Amp) @2Ohm, 1kHz -60 - 0 dB
SE2 (Line Output) @2Ohm, 1kHz -60 - 6.5 dB
Input Sensitivity 1x 100W@4Ohm, 1kHz, 23.5dB   775   mV
Filter Gain Butterworth, Q= 0.707 - 4 - dB
Cutoff Frequency HFP 0.25 - 2 kHz
LFP - 20 - kHz
SNR 1x 100W@2Ohm, THD+N=1%, 25.8dB, A-weighting       dB
THD+N 5W@2Ohm, 1kHz,25.8dB   0.19   %
10W@2Ohm, 1kHz, 25.8dB   0.21   %
Input Impedance -   10  
Supported Sampling Rates - - 48 - kHz
Output Noise Level A-weighting, Input Connected to GND, 25.8dB   110   uV
DC Offset -   10   mV
Crosstalk Separation 20Hz-20kHz, Gain=26dB - -60 - dB







15 Sep 2022

Does the "extra mixed signal output" go through the DSP? Can I program the a crossover for the mixed output?

Hi, Aaron. Thank you for your interest in our products. The mixed signal goes through DSP processing before outputting. You can adjust audio parameters (like cut-off frequency, EQ, gain and so on) of this signal output through PC UI for JAB2v2. Wish this could help you. Have a nice day~


13 Apr 2022

hello, the JAB2V2[764] 1x100 standard factory setting is full range frequency or set for subwoofer , I would use ad single channel full range amplifier ,is that possible without any modification ? is it compatible with - BCPB3[720] ? thanks Simone

Hello, Simone. Thank you for your interest in our products. 1x100W JAB2v2 is set as full range. You can use BCPB3 to power it. Wish this could help you. Have a nice day~


09 Apr 2022

I got one of these and hooked it up to a 8 ohm speaker. With music playing from my phone at full volume, with speaker getting 24V it only uses like 2W (nowhere close to the 36W it should be pulling) and is therefore over 10dB more quiet than it should be. Is there some internal low gain value set by default? I don't currently have access to an ICP5 to be able to change the settings, I didn't realize this model doesn't work with ICP3...

Hi, jus. Could you test the voltage of output stage of JAB2v2 when feeding in music from your phone at full volume? If possible, please send us some videos or pictures so that we can help you solve it. You can send an email to store@sure-electronics.com. We will reply to you as soon as we receive your email. Have a nice day~


18 Nov 2021

Hello, what's the difference between this cheaper but newer model and the more expensive but older JAB3+ - 1100[ 762]? Which has best audio quality?

Hello, Niklas. Thank you for your interest in our products. The AMP ICs used in JAB2v2 and JAB3+ are the same, but there is difference in integrated DSP. JAB3+ is equipped with ADAU1701 DSP, which supports SigmaStudio programming, APP and PC UI control. JAB2v2 is equipped with an ARM processor, which only supports PC UI control. Wish this could help you. Have a nice day~


17 Nov 2021

Hi! What is the Power for 4 Ohm and for 8 Ohm ?

Hi, Andrew. Thank you for your interest in our products. The output power is approximately 72W when driving a 4Ohm load at 24V and around 36W with an 8Ohm load at 24V. Wish this could help you. Have a nice day~


31 Oct 2021

Hello. May i use two JAB2V2 in the same time in bluetooth. One for the left side, one for the right side. I want to amplify a pair of speaker on bluetooth use, without a wire between the two speakers. And is this cheapset very good for audio quality, or may you advise me another (88 db/w/m for the speakers) ? Thanks for your feedback. Kind regards. Didier.

Hello, Didier.   Thank you for your interest in our products. Our Bluetooth product doesn't support TWS now. We are working hard on it. Wish this could help you. Have a nice day~


25 Mar 2021

Is this board the same as the 2x50 jab2 if not what's the difference?

Hello, Jose. The difference of JAB2v2 - 1100 and JAB2v2 - 250 is the output channel and output power. JAB2v2 - 1100 is mono 100W and JAB2v2 - 250 is stereo 50W. You can choose one model suitable to your requirements. Wish this could help you.

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