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2 x 50 Watt Class D Audio Amplifier Board w Bluetooth Ver4.0 - JAB2[640]

★★★★★(751 recommends)

SKUAA-JA32171

37.90

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Bluetooth Pairing Name Programming (store@sure-electronics.com)

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L-style Aluminum Bracket (JAB accessories)

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Cables Package for JAB (JAB accessories)

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2 x 50 Watt Class D Audio Amplifier Board with Audio DSP - JAB3-250 (for Gaming Kiosks)

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2 x 30 Watt Class D Audio Amplifier Board with Audio DSP - JAB3-230 (for Gaming Kiosks)

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Description

JAB2 - 250 is a stereo audio amplifier board integrated with Bluetooth V4.0, delivering 50W output power per channel into a 4Ohm load based on Texas Instruments TPA3116 chip. JAB2 - 250 offers a high efficiency wireless solution for customers, suitable for portable speakers, Bluetooth speakers, home audio, DIY audio, hotel, kiosk, industrial audio, etc. An optimized heatsink is mounted atop the amplifier board to maximum heat dissipation for higher efficiency. Compact size and light weight make JAB2 applicable to almost any audio projects.

Video for introduction of JAB2: video link

Video for introduction of Bluetooth control: video link

Video for connection with WONDOM JAB3: video link



Integrated with Bluetooth

JAB2 is integrated with high performance Bluetooth module, which means you can connect JAB2 with any portable devices or PC to easily access streaming audio via Bluetooth paring. In addition, the module supports changing Bluetooth name, so you can customize your name of JAB2.

JAB2 also supports 3.5mm AUX IN. The line input and Bluetooth input would be mixed to the amplification circuit.



High Quality Audio Performance

Thanks to dedicated PCB layout design and engineers’ attentive debugging, this JAB2 - 250 audio amplifier board features high audio performance, whose SNR is 92dB and THD+N performs well as 0.02% @ 4Ohm, 10W, 1kHz.



Low Power Consumption and Long Playback Time

This JAB2 - 250 audio module dissipates only 0.72W with no signal when in ON mode (around 0.07W when in stand-by mode) due to the employed power management system. The extremely low power consumption ensures long playback time especially when JAB2 - 250 is powered by battery boards, which is absolutely an advantage for portable Bluetooth speakers.



Multiple Power Path

A DC10V-24V power supply is required to power JAB2 - 250.

In addition to power supply, JAB2 also supports battery power, which greatly improve the portability and flexibility of audio systems. MPPT circuit is equipped in JAB2, so it can recharge the batteries with a power supply connected.



It is recommended to use WONDOM Battey charging and protection board (JAB - BE) designed for 3pcs 18650 Lithium-ion batteries in series as it’s equipped with full protection circuit for operation safety. A 15V-24V, 1A-5A power supply would be required for the purpose to fully charge the batteries.



If you use rechargeable lead acid batteries, a 15V-24V, 1A power supply is needed.

You could also use solar panels for their applications. Just remember to use solar batteries with float (open) voltage with 16.5V-21.5V, and use 20-100W panels for this application.

8 AA (Alkaline) Batteries in series will be 12V to power the amplifier. Please note that AA batteries couldn’t be connected with charging port unless MPPT module is removed.



Bluetooth Control

There is a Bluetooth control port on the JAB2. With a short press on the control button, you can cancel the Bluetooth pairing. With a long press, you can turn OFF / ON Bluetooth. Please note that the Bluetooth control button is not the basic cable in the package. If you want this cable, please buy the Functional cables kit for the connection between JAB2 with JAB3 (AA-JA11116).



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-JA32171, JAB2 - 250

1pc power supply cable

1pc stereo speaker cable

1pc Bluetooth antenna cable

  • StyleBoards
  • Number Of Channel(s)2
  • Output Power50
  • Size3.6 x 2.7 inches (91.44mm x 68.58mm)
  • ChipsetTPA31xx
  • Heat DissipationHeat Sink
  • Supported Parallel Bridge Tied Load ModeYES
  • inputBluetooth, Single ended Line-in,
  • Power Voltage10V-24V
  • 3.6 x 2.7 Inches PCB Size
  • Bluetooth V4.0 APT-X +EDR, A2DP
  • Bluetooth Control Port
  • Power Management Circuit
  • 3.5mm AUX Port
  • Volume Control Port (Potentiometer)
  • Power Switch Port
  • LED Status Indicators (Power, Battery Charging, Bluetooth)
  • Supporting Battery Power
  • Higher Output Power with Power Adapter
  • PBTL Configurable
  • Extension Board Supported
Specifications typical @ +20℃, Powered by 19V DC, unless otherwise noted. Specifications subject to change without notice.
Parameter Conditions Min. Typ.  Max. Units
Power Supply Range - 12 19 24 VDC
Idle Power/Current SD short to GND, BT Disconnected - 37 50 mA
BT Connected - 42 55 mA
Standby Power/Current SD short to GND, only when low power module available - 2.9 5 mA
Battery Undervoltage Protection* - - 10.4 10.5 V
Constant Charging Voltage - - 12.3 12.7 V
Charge Current - - 0.5 1 A
Specifications typical @ +20℃,Powered by 19V DC, unless otherwise noted. Specifications subject to change without notice.
Parameter Conditions Min. Typ. Max. Units
Gain -     18 26 36 dB
Output Power19V @ 4Ω 2 x 50    W
THD @ 4Ω,10W, 1kHz - 0.02 - %
Output Noise Level A-weighting,Input Connected to GND       - 185 - µV
SNR 10W @ 4Ω, THD+N=1% - 92 - dB

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QUESTIONS & ANSWERS

leonardo.kucarz

23 Sep 2020

boa noite ,eu comprei este amplificador faz alguns meses ,no começo ele estava funcionando perfeitamente mas a uns dois meses atrás ele vem dando alguns ruídos e estouros que só normalizam depois de algum tempo, não sei oque fazer!! pode me ajudar?

Hi, leonardo. Could you please send a video to us to show the problem so that we can solve it for you? The email address is store@sure-electronics.com. We will reply to you as soon as we receive your email.

jak.jano

13 Sep 2020

Can I connect an 8 Ohm and a 2 Ohm driver with this amplifier?

Hi, jak. Thank you for your interest in our products. The typical load for JAB2 – 250 is 4Ohm. Its output power would be lower if you use it to drive an 8Ohm speaker. Overcurrent could happen if you use it to drive a 2Ohm speaker. It is recommended to drive a 2Ohm speaker with JAB2 – 1100. Wish this could help you.

leonardo.kucarz

08 Apr 2020

hi I just received this amplifier and i would like to know if I can make this amplifier have mono output because i have only 1 speaker to connect

Hi, leonardo. We need to change resistors on JAB2 to configure it into PBTL mode and arrange plenty of tests to make sure its function and performance. Therefore, it is not recommended for customers to modify the boards by yourselves. We suggest that you buy one more speaker or buy 1 x 100W JAB2 directly (link is as follows). http://store.sure-electronics.com/product/AA-JA31182

Maximilian.Singler

02 Mar 2020

Hello, can the JAB2 also be supplied with up to 26V like the JAB3? Is there an overvoltage protection where the amplifier switches off?

Hi, Maximilian. The power supply range of JAB2 is 12-24VDC. It is not recommended to power it with 26V, which will affect the life span. The JAB2 is not equipped with overvoltage protection. It is equipped with undervoltage, overcurrent, and reverse polarity protection. Wish this could help you.

Maximilian.Singler

02 Mar 2020

Hello, can the JAB2 also be supplied with up to 26V like the JAB3? Is there an overvoltage protection where the amplifier switches off?

Hi, Maximilian. The power supply range of JAB2 is 12-24VDC. It is not recommended to power it with 26V, which will affect the life span. The JAB2 is not equipped with overvoltage protection. It is equipped with undervoltage, overcurrent, and reverse polarity protection. Wish this could help you.

Maximilian.Singler

02 Mar 2020

Hello, can the JAB2 also be supplied with up to 26V like the JAB3? Is there an overvoltage protection where the amplifier switches off?

Hi, Maximilian. The power supply range of JAB2 is 12-24VDC. It is not recommended to power it with 26V, which will affect the life span. The JAB2 is not equipped with overvoltage protection. It is equipped with undervoltage, overcurrent, and reverse polarity protection. Wish this could help you.

Lasse.Bak

21 Oct 2019

if i wish to add a sub and a tweeter, would i need a crossover? and which would you recommend?

Hi, Lasse. Thank you for your interest in our products. If you want to add a sub and a tweeter, a crossover is required. We recommend you the JAB3 - 250 (2 X 50 WATT CLASS D AUDIO AMPLIFIER BOARD WITH AUDIO DSP), which can be connected with JAB2 - 250 to build an audio 4.0 system integrated with Bluetooth and DSP. Wish this could help you.

Kirill.Kuptsov

11 Sep 2019

Hello. Could I use PS-BC12113 to power this board (AA-JA32171)? As i understand, this board needs voltage higher than 12 volts

Hi, thank you for your interest in our products. The power supply range of AA-JA32171 is DC12V-24V. The voltage of PS-BC121113 (5S 26650 Lithium Battery Charging, Balance and Protection Board-BCPB4) can reach DC21V when fully charged. So it can be used to power the JAB2-250. In addition, there are multiple discharging ports on PS-BC12113 so it can be used to power the audio 2.1 system built with WONDOM JAB2 and JAB3. Wish this could help you.

Gábor.Szabó

23 May 2019

Is it already the newer version with external antenna?

Hi, Gábor. Thank you for your interest in our products. Yes, the external antenna together with 1pc power cable and 1pc speaker cable is in the package of JAB2-250. Please feel free to contact us if there is any problem.

Surya.Naryanan

26 Mar 2019

If we want to use a third party potentiometer what resistance should it be

Hi, Surya. The resistance should be 1k-10k, which depends on the noise floor. We recommend 1k. Wish it could help you.

Marc.Colahan

28 Feb 2019

Does this come with volume pot and power cable? Can the Bluetooth name be programmed? Thanks Marc

Hi, Marc. The power cable is sent with the JAB2 package and the volume potentiometer is in the Functional Cables Package, which you can buy in the following link: http://store.sure-electronics.com/product/AA-JA11114 or http://store.sure-electronics.com/product/AA-JA11116. If you want to rename the Bluetooth, please contact us with store@sure-electronics.com. This new online shop is under construction now and it will be improved soon. Thank you for your support and sorry for the inconvenience brought to you.

Copyright 2020 @ Sure Electronics Co., Ltd.

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