User Manual

Up2Stream AMP2.1 is a WiFi and Bluetooth 5.0 amplier with subwoofer output board that can be applied into your existing regular audio
system to make it wireless enabled, and it is also a all-in-one solution for DIYers to make their customized wireless audio system. After
connecting the device to your home network, with our 4STREAM app, you can play music from your home NAS, USB p en drive, cell phone
memory or from online streaming services like Spotify, Deezer, Tidal, Qobuz and so on. The wireless multiroom audio system can play the same
music to each room in sync or play different music to different rooms.
1. Introduction
Up2Stream AMP2.1 User Manual
2. What's in the box
3. Interface
4. Connection Diagram
UpStream AMP2.1
Acrylic Case
More accessories coming soon at www.arylic.com
6pin analog connector
External SPDIF Board
Screw Driver
External Button Board
WiFi Antenna
3x Knob Cover
User Manual
Further Notes
C27
0.1uF
R47 10K
MODE
PLAY/PAUSE
NEXT
PREV
VOL+
R60
1K
R61
2.2K
R62
3.6K
R63
5.6K
R64
100R
VOL-
R65
8.2K
MUTE
R66
12K
NUM1
R67
18K
NUM2
R68
27K
NUM3
R69
47K
NUM4
R70
100K
KEY
VDD3V3
DGND
DGND
B
Power Button:
Short press to power off and on; When in WiFi mode, long press (press and hold the button for more than 5 seconds) to
reset WiFi settings and enter the paring mode; When in Bluetooth mode, long press to terminate current connection.
* Hold Power button then plug in the power can force the device to enter WiFi mode. If you have
setup router connection before, the device will auto connect to that router.
L
Volume control knob:
Short press to switch input mode: Wi, BT, USB, Line in, USB
.
M
Tone control knob:
Short press to reset treble level to 0, long press 5sec to increase
crossover frequency by 10Hz. (Crossover frequency range from 80-200Hz)
N
Bass control knob:
Short press to reset bass level to 0, long press 5sec to decrease
crossover frequency by 10Hz. (Crossover frequency range from 80-200Hz)
C
PH2.0-4P: DGND, MICIN, AGND, MIC2IN:
This is reserved for future use.
E
PH2.0-4P: LINE-INR, AGND, LINE-INL, DGND:
For analog input to up2stream amp 2.1
board, it has the same signal as the 3.5mm Aux jack.
F
PH2.0-4P: GND, B1, B0, SPDIF:
This is reserved for external SPDIF input.
B1, B0 is for testing.
K
PH2.0-2P: GND, VIN:
This is for DC-IN.
O
PH2.0-2P: +5V, GND:
This is a 5V output.
Q
PH2.0-9P: D3.3V, GND, WPS, LINE-LED, USB-LED, BT-LED, WIFI-LED, ADC-KEY, IR:
You should connect 3.3V to a current limit resister and then to LED and then to the pin.
The LED pins are used to extend the LED and are common-anode connected.
WPS is for wi reset function.
ADC-KEY is used for external buttons, refer to the circuit on the right for key denitions.
IR is used for extend IR receiver.
U
PH2.0-4P: GPIO, STB, MUTE, GND:
Reserved for debug.