Up2Stream AMP v4 User Manual
1. Introduction
Up2Stream AMP v4 is a WiFi and Bluetooth 5.0 stereo/mono amplifier board that can be applied into your existing regular audio system
to make it wireless enabled, it is also a all-in-one solution for DIYers to make their customized wireless audio system. Up2Sream AMP v4
can switch between stereo and mono mode, stereo can provide max. 50W L&R channels, and mono mode will mixed L&R channel and
provide a single max. 100W channel. Once connected to your home network, using our 4Stream app, you can play music from your
mobile, NAS, USB pen drive or from online streaming services like Spotify, Deezer, Tidal, Qobuz and more. With multiple devices, the
wireless multiroom audio system can play the same music to each room in sync or play different music to different rooms.
10. Power Button:
Short press to power off and on; When in WiFi mode, long press (press and hold for 5 secs) to reset WiFi settings
and enter pairing mode; When in Bluetooth mode, long press to terminate current connection.
*Hold Power button first then plug in the power cable can force the device to enter WiFI mode. If you have setup router connection
before, the device will automatically connect to that router.
20. Switching Stereo/Mono mode:
The four jumpers’ position will decide which mode Up2Stream AMP v4 is:
2. What’s in the box
3. Interface
Screw Driver
Antenna x2
User’s Manual
4Pin Analog Connector
Up2Stream AMP v4
External Button Board
DC-IN
Speaker OUT
(Stereo: R+,R-,L+,L-) (Mono: +,+,-,-)
GND, MIC2, MIC1, GND
Line IN (R_IN, GND, GND, L_IN)
Line IN
Mirco USB
GND, B0, B1, GPIO
USB
Ethernet RJ45
Power Button
GND, SPDIF
GPIO2, GPIO1, GND, VCC3V3
SPDIF, MCLK, IIS_DATA, BCLK, LRCK, GND, VCC_3V3
Bluetooth Antenna
WiFi Module
WiFi Antenna
IR
IIC, IR, ADC_KEY, LED, RESET, TX, RX, GND, VCC3V3
XOUT, DGND, LOUT, AGND, ROUT
(Stereo: LOUT, ROUT) (Mono: XOUT)
Stereo/Mono Jumpers
+5V, GND
LED
V+,GND (12-24V DC in)
External Knob Board
External SPDIF Board
Acrylic Casing
*More accessories are available at www.arylic.com
Stereo Mode
Jumpers are on the top and middle row
NOTE: Operate with no Power Connected.
Mono Mode
Jumpers are on the middle and bottom row
0.1uF
10K
MODE
PLAY/PAUSE
NEXT
PREV
VOL+
VOL-
MUTE
NUM1
NUM2
NUM3
NUM4
1K
2.2K
3.6K
5.6K
100R
8.2K
12K
18K
27K
47K
100K
KEY
VDD3V3
AMP V4
DGND
Further Notes
3. PH2.0-4P:
GND, MIC2, MIC1, GND: This is reserved for future use.
4. PH2.0-4P:
R_IN, GND, GND, L_IN: Analog input to Up2Stream AMP v4 board, it has
the same signal as the 3.5mm Line IN jack.
6. Micro USB:
For connection with PC to support USB soundcard, and the
ACPWorkbench tool.
11. PH2.0-2P:
GND, SPDIF: This is for external SPDIF output/input.
12. PH2.0-4P:
GPIO2, GPIO1, GND, VCC3V3: GPIO2 and GPIO1 is used to connect a
coding key, should be used for volume control.
13. PH2.0-7P: SPDIF, MCLK, IIS_DATA, BCLK, LRCK, GND, VCC_3V3:
This is for digital
output extension:
SPDIF is for external SPDIF output/input (same as #11)
For IIS, BCLK is 2.8MHz, LRCK is 44.1KHz, MCLK is 11.288MHz, DOUT following the
standard IIS data format and have 16 bits depth. The system is running in master
mode, you should make sure the IIS port of connected device is running in slave
mode.
18. PH2.0-13P: IIC_SDA, IIC_SCL, IR, ADC_KEY, LED_RED, LED_BLUE, LED_WHITE,
LED_GREEN, RESET, TX, RX, GND, VCC3V3
IIC_SDA, IIC_SCL: This is reserved for display panel.
IR is used for extend IR receiver.
ADC_KEY is used for external buttons, please refer to the circuit on the right for key
definitions.
The LED pins are used to extend the LED and are common-anode connected. You
should connect 3.3V to a current limit resister and then to LED then to the pin.
RESET is used to extend the WiFi reset button (Power Button).
TX/RX are UART interface to send events and receive controls.
19. PH2.0-5P: XOUT, DGND, LOUT, AGND, ROUT:
Analog output, use XOUT when in Mono mode and ROUT, LOUT when in Stereo
mode, these has the same signal as the speaker out.
21. PH2.0-2P: 5V+, GND:
5V power output for other device.
23. PH2.0-2P: V+, GND:
12-24V power input (same as the DC IN port)
