Sure Electronics JAB4 Instruction Manual

BY SURE ELECTRONICS CO., LTD.

What is JAB4?
JAB4 is an audio amplifier integrated with both ADAU1701 DSP and Bluetooth 5.0, supporting
various audio format decode, such as aptX, aptX HD, aptX LL, SBC and AAC. JAB4 is a 4CH audio
amplifier based on TI’s TPA3118, delivering 30W into an 8Ohm load. Furthermore, JAB4 supports
PBTL configuration, meaning that each two channels can be configured as one channel with double
output power. Therefore, JAB4 can work as 2.1 mode (2 x 30W + 1 x 60W), and 2.0 mode (2 x 60W).
Thanks to the equipped cable identification circuit, the switching among the output modes is
automatically achieved by plug-in cables. JAB4 features high quality audio performance, high
efficiency, high flexibility and expandability, perfectly suitable for DIY applications, Home audio, Hotel
audio, Desktop audio, Garden audio and demanding industrial audio applications.
Portable
Bluetooth Speaker
Home
Audio
Car
Audio DIY
Applications
Digital
Crossover

What is JAB4?
Besides Bluetooth input, JAB4 supports 3.5mm line input. The signal from both input methods would
be mixed before being transmitted to audio processing. JAB4 provides an I2S signal output. You can
connect which to an I2S audio amplifier board. Thanks to the employed ADAU1701 DSP chip, JAB4
supports hardware control and software control. Four ports for external potentiometers are offered
on board as default. After connection with the potentiometers, you can adjust the gain, volume and
frequency. What’s more, JAB4 supports programming with SigmaStudio and remote control through
PC UI after connection with ICP5.
Key Features:
-Integrated with Bluetooth V5.0 & ADAU1701 DSP
-Supporting line input and I2S output
-Supporting programming with SigmaStudio or remote control
-One product, four modes suitable for audio 4.0 / 2.1 / 2.0 / 0.2 system

Block Diagram

Connection Diagram
Audio Input
3
4
Bluetooth 5.0 module
Analog Line Input
1
2
3
4
5
Bluetooth indicator
LED Indicator
5
6
7
POT1
POT2
POT3
POT4
8
9
Power Supply
1DC10V-26V power supply
2WONDOM BCPB series
Control
6Programming
Standby Control
Potentiometers
7
8
9Bluetooth Pairing Cancellation

Connection Diagram
Speaker Output
10
10
I2S
Output
11
Audio Output
Speaker output I2S Output
10 11
JAB4 supports PBTL mode, each 2 channels can be configured as
one channel with double power.
The switching of the output modes is based on equipped cables
identification circuit and the settings is as follows.
Stereo Mode Mono Mode

Power Supply
Suggested power supply should be DC24V, 3A.
You can also use any power supply whose output voltage is
within DC10-26V and current is higher than 3A. Please note
power supply out of the recommended range may cause
damage to the amplifier board.
We recommend MeanWell LRS-100-24 Single Output Switching
Power Supply. We also recommend Mean Well GST-90A 24V
version.
The terminal interface used for power supply is Molex
MicroFit-2Pos-3mm.
A power supply cable is the basic cable, which comes with
JAB4 in the package.
1, Power supply –J6
1
J6

Power Supply
JAB4 supports battery power, which greatly improves
the portability of the audio systems.
It is suggested to use WONDOM BCPB series to
power JAB4 since there is no charging circuit
equipped on JAB4.
The terminal interface used for battery power supply
is PH-4Pos-2mm.
1, Battery Board–J5
2
J5

Audio Input
JAB4 supports both Bluetooth input and analog line input, which makes it suitable for various audio
projects. The two input methods can be used at the same time. All the signal would be mixed.
4
3BT
AUX IN
+

Audio Input
3, Bluetooth input
3
JAB4 is integrated with Bluetooth 5.0
module, supporting various audio formats
as apt-X, aptX HD, apt-X LL, SBC & AAC .
Note: The device used with this
hardware needs to support the
following Bluetooth Audio Codec.
Devices that are not aptX HD compatible
will not have the option available on the
UI. All Apple devices are not compatible
with aptX HD.

Audio Input
An external Bluetooth antenna port is also
provided, which ensures the stability even if
JAB4 is installed in a cabinet.
You can find the IPX to SMA conversion cable and
external antenna in the Functional Cables Kit.
There is a built-in Bluetooth antenna on the
board for easy connection. So you can
directly use JAB4 for audio playback.
Built Bluetooth Antenna
External Bluetooth Antenna

Audio Input
4
4, Analog Line Input –J13
JAB4 supports analog input and J13 is used for
3.5mm AUX IN.
The terminal block used is PH-6pos-2mm.
You can find the 3.5mm AUX IN cable in the
Functional Cables Kit (AA-JA11117).
J13
Pin definition of
3.5mm AUX IN cable
NC
NC

LED Indicator
5, Bluetooth LED indicator –J1
When Bluetooth is paired, the LED will be ON;
When Bluetooth is searching, the LED will BLINK.
LED1, Bluetooth LED indicator
LED2, Signal detection LED indicator
Signal level sensor system is employed in JAB4 for lower
power consumption.
When there is signal detected, the LED will be ON;
When there is no signal detected, the LED will be OFF.
5
J1
LED1,
Bluetooth
Indicator
LED2,
Signal Detection
Indicator
On-board LED indicator

Control
6, Programming –J4
Based on integrated ADAU1701 DSP, you can connect JAB4
with ICP5 to get SigmaStudio Control or PC UI control.
You can also use JAB4 as 0.2 mode after frequency setting
under software control.
You can adjust parameters of the audio system to customize
your audio.
6
J4
*ICP5 will be released
soon.

Control
J10 port is provided for easy control of the audio
systems.
Short circuit J10, JAB4 will enter into standby mode.
Leave J10 open, JAB4 will work normally.
You can find the PH-2Pos cable in the Functional
cables kit (AA-JA11117).
7, Standby Control –J10
7J10

Control
8, External Potentiometers
POT1
POT2
POT3
POT4
8
Four ports for external potentiometers are provided on JAB4 for
hardware control of the whole system. You can find the cables
along with potentiometers in the Functional cables kit (AA-
JA11117).
POT4: Gain of power stage channel 1
POT3: High-pass filter / Bandpass filter of power stage channel 1
POT2: High-pass filter / Bandpass filter of power stage channel 2
POT1: Gain of power stage channel 2
•As for the details, please refer to the datasheet.
•If you want on-board potentiometers, please contact us. MOQ500pcs
would be required.

Control
Port Function 4.0 / 2.0 Mode 2.1 Mode (CH1 - Mono) 2.1 Mode (CH2 - Mono)
POT1 CH2 Gain Gain of CH2 Gain of CH2 Gain of CH2
POT2 CH2 HPF or BPF High-pass Filter of CH2 High-pass Filter of CH2 Band-pass Filter of CH2
POT3
CH1 HPF or BPF
High-pass Filter of CH1 Band-pass Filter of CH1 High-pass Filter of CH1
POT4 CH1 Gain Gain of CH1 Gain of CH1 Gain of CH1
Note:
1. The channel 1 speaker output (J11) of JAB4 is defined as CH1; channel 2 speaker output (J12) is defined as CH2.
2. POT1 and POT2 are used to adjust CH2 output, POT3 and POT4 are used to adjust CH1 output. When JAB4 works as 2.1 mode,
you can configure any channel as 0.1. The function of potentiometers will be changed accordingly. If you want to use JAB4 as 0.2
mode, you can set through the PC UI. Please note 0.2 mode is not supported when using hardware control (Potentiometers).
3. HPF refers to High-pass Filter; BPF refers to Band-pass Filter. When CH1 (CH2) is stereo output, the function of POT3 (POT2) is
HPF; when CH1 (CH2) is mono output, the function of POT3 (POT2) is BPF.
4. For the functions of potentiometers when used in other applications, please contact us at [e-mail].

Control
Hardware Control
Function Range of Frequency
High-pass Filter (4.0 / 2.0 Mode) 20Hz- 2kHz
High-pass Filter (2.0 Mode) 250Hz- 2kHz
Band-pass Filter 60HZ-120Hz (High-pass)
200Hz-400Hz (Low-pass)
Customer could customize frequency range through Sigma Studio,
We provide SigmaStudio source code for downloading.
(PC UI Control only works with default firmware.)

Control
9, Bluetooth Pairing Cancellation Port –J2
9
When Bluetooth is paired, short circuit J2 to cancel
pairing.
After cancellation, please release short circuit.
You can find the Bluetooth pairing cancellation cable
with a button in the Functional cables kit (AA-JA11117).
When Bluetooth is paired, press and hold the button
until the Bluetooth indicator is blinking for cancellation.
J2

Audio Output
10, Stereo speaker output –J11, J12
JAB4 works as 4 x 30W. It also supports configured as 2.0 / 0.2 mode (2 x
60W) or 2.1 mode (2 x 30W + 1 x 60W).
The switching is achieved by automatic cables identification.
Make sure the power is off when switching the output mode, otherwise
the amplifier will enter into protection mode.
Please note if you want to use JAB4 as 0.2 mode, you need to set
frequency with PC UI. 0.2 Mode is NOT supported when using hardware
control (potentiometers).
The terminal blocks used for speaker output is Molex-MicroFit-2x3Pos-
3mm. Two speaker cables comes with JAB4 as the basic cables.
J11
J12
10
10