WONDOM AA-JA32171 JAB 2-50 Bluetooth 4.0 Stereo Amplifier Class D 2.1 2x50W 4 Ohm

Version 2018: external antenna bluetooth

This is the 2018 version of JAB2 which now includes a external Bluetooth antenna with adhesive. This enhancement facilitates a clean integration in housing, without sacrificing on the quality of the transfer.

Thus, all Bluetooth applications are gaining flexibility and JAB2 can now be used to develop a high performance Bluetooth dock, active speakers apt-X compatible with wireless apt-X tablets or smartphones.

Many accessories available

This module comes with a 50cm power cable, a 50cm stereo speaker with cable Molex X4 / bare wire. And its external Bluetooth antenna (Version 2018).

Many options and accessories can enhance the JAB2. Awiring kit (Extension, USB charging, Jack Connector 3.5, Switch ON / OFF), a metal mount, battery cradle & power management, LED kit ... etc.

Specifications
Product type	Amplifier module
Amplification type	Class D
Channel	Stereo (2)
Amplification chip	TPA3116
Power	2x50W @ 4Ω, THD+N < 1%
Frequency response	20Hz - 20kHz
Bluetooth version	4.0
Bluetooth technology	aptX +EDR A2DP
Inputs	Stereo input on Molex connector Bluetooth
Status indicator	By LED (not included)
Protection	Overcurrent Overheat

Specifications

Product type

Amplifier module

Amplification type

Class D

Channel

Stereo (2)

Amplification chip

TPA3116

Power

2x50W @ 4Ω, THD+N < 1%

Frequency response

20Hz - 20kHz

Bluetooth version

4.0

Bluetooth technology

aptX
+EDR
A2DP

Inputs

Stereo input on Molex connector
Bluetooth

Status indicator

By LED (not included)

Protection

Overcurrent
Overheat

Measurements
Parameter	Conditions	Min.	Typ.	Max.
Power supply	-	12VDC	19VDC	24VDC
Battery under voltage protection	-	-	10.4VDC	10.5VDC
Constant charging voltage	-	-	12.3V	12.7V
Chargin current	-	-	0.5A	1A
Gain	-	18dB	26dB	36dB
Output power	19V @ 4Ω	2x50W	-
THD	@ 4Ω, 10W, 1kHz	-	0.02%	-
Output noise level	A-Weighting,input connected to GND	-	185µV	-
SNR	10W @ 4Ω, THD+N = 1%	-	92dB	-

Measurements

Parameter

Conditions

Min.

Typ.

Max.

Power supply

12VDC

19VDC

24VDC

Battery under voltage protection

10.4VDC

10.5VDC

Constant charging voltage

12.3V

12.7V

Chargin current

0.5A

Gain

18dB

26dB

36dB

Output power

19V @ 4Ω

2x50W

THD

@ 4Ω, 10W, 1kHz

0.02%

Output noise level

A-Weighting,input connected to GND

185µV

SNR

10W @ 4Ω, THD+N = 1%

92dB

General
Dimensions	91.5 x 68.5 x 23mm
Package	1x Wondom AA-JA32472 JAB 2-30 1x Power cable 1x Speaker cable

General

Dimensions

91.5 x 68.5 x 23mm

Package

1x Wondom AA-JA32472 JAB 2-30
1x Power cable
1x Speaker cable

Input	XH 2.54mm
Output	Molex
Channel	2 (Stereo)
Class	Class D / T
Amplifier chip	N/A
Power (W)	50.0

Sound quality isn't great, the board is noisy
It has high noise, bluetooth stopped working quite soon after the purchase (2018), loud crosstalk from line input while bluetooth and so on. Cannot use with all the attachments, like Jab3 and batter pack because they utilize same connector. It is feature packed product with great expectations, but a disappointment and would not recommend purchasing this product. While it works, it is cumbersome and just poor quality.

That said, purchased it 2018 and now 5 years later it still works apart from the bluetooth so in this sense it's fine. Just do not expect anything from such cheaply made product.

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