Up2Stream Amp 2.1 - Multiroom Wireless 2.1 Amplifier Board

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  • RJ45 wired network and WiFi, Airplay, Spotify Connect, Bluetooth 5.0, DLNA, UPnP wireless connectivity support.
  • Maximum 50W x 2 +100W powerful output for your 2.1 projects and audio system.
  • Decoding up to 192khz/24bits, support FLAC / MP3 / AAC / AAC+ / ALAC / APE / WAV lossless audio format.
  • Support Spotify, Apple Music, Amazon Music, Tidal, Deezer, Qobuz, TuneIn, Internet Radio and more.
  • Sync audio or play different songs at the same time with multiroom streaming.
  • Convenient, full wireless control by FREE iOS & Android 4STREAM app.
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DIY 2.1 amplifier

Up2stream AMP 2.1

The Up2Stream AMP 2.1 is a versatile WiFi and Bluetooth 5.0 2.1 amplifier board designed to upgrade your existing audio system to a wireless-enabled setup.

It also serves as an all-in-one solution for DIY enthusiasts who want to create their own customized wireless audio system.

Once connected to your home network, the device can be controlled using our 4STREAM app, allowing you to stream music from various sources such as your home NAS, USB drive, or mobile phone memory.

You can also access popular online music streaming services like Spotify, Deezer, Tidal, Qobuz, and more. With its wireless multiroom audio feature, you can play the same music in sync across all rooms or choose to play different music in each room.

Overall, the Up2Stream AMP2.1 is an excellent solution for music enthusiasts who want to enjoy high-quality wireless audio at home.


Wireless Connectivity

Up2stream AMP 2.1 supports WiFi and Bluetooth 5.0, allowing for easy streaming of music from various sources such as smart phones, tablet, laptop, and computer within your local network.

Additionally, the device supports popular protocols such as Airplay, Spotify connect, DLNA, and UPnP, providing seamless wireless music streaming capabilities.

Wired Network

Up2Stream AMP 2.1 features an RJ45 Ethernet port for a more stable network connection.

This allows you to directly stream music from your smart devices without having to go through the WiFi setup process using the app. This feature makes it super easy to get started and enjoy your music quickly and effortlessly.

Powerful 2.1 Amplifier Board

With a peak power output of 50 watts per channel for two channels and an additional 100 watts, the Up2stream AMP 2.1 has the ability to provide a impressive 2.1 home theater experience with powerful deep bass.

Plug and Play

With the ready-to-use interfaces, streaming music is as simple as plugging in the power and connecting to a passive speaker and subwoofer.

Unlike other audio boards, there's no need for soldering of pins before you can get started. This makes it incredibly easy and user-friendly for anyone to use.

Lossless Audio

The Up2stream AMP 2.1 is designed to support a broad range of lossless audio formats, including FLAC, MP3, AAC, AAC+, ALAC, APE, and WAV.

Furthermore, the board can decoding up to 192kHz/24bits, and providing high-quality audio output with a resolution of 44.1kHz/16bits CD quality.

The Up2stream AMP also delivers impressive sound with the TPA3116D2*2 amplifier chip used in its design. This chip provides powerful amplification to bring out the best in your audio.

Music Services Support

Spotify, Apple Music, Amazon Music, Tidal, Deezer, Qobuz, TuneIn, Internet Radio, Napster, iHeart Radio, Radio Paradise, and more with future update.

Versatile Music Source

The Up2stream AMP 2.1 offers versatile streaming options, allowing you to easily stream music from various sources such as music services, NAS, USB, phone storage, SD card, and other 3rd-party apps that support Airplay, DLNA, and UPnP protocols.

This provides you with a wide range of choices when it comes to selecting your preferred music source.

Additionally, the device comes with Bluetooth 5.0, enabling you to stream audio from your smart devices seamlessly. This means you can enjoy your favorite music on the go, without the need for any additional cables or devices.

With its multiple streaming options, the Up2stream AMP 2.1 makes it easy to enjoy high-quality sound from a variety of sources.

Multiple Interfaces

The Up2stream AMP 2.1 comes with a range of ready-to-use interfaces, including a 3.5mm line in, micro USB audio input, speaker output and a plug for SPDIF in, Line in, LED indicator, IR extension, and ADC-key. Which enables you to create a flexible system according to your specific needs. With these features, you can easily connect your audio devices and enjoy high-quality sound without any complicated setup.

Multiroom/ Multizone

If you have multiple Arylic streaming devices installed in different rooms, you can easily group them together into different groups and stream music to a master device, which will sync the same music to all other devices in that group.

Alternatively, you can also choose to play different songs at the same time throughout your house, providing a personalized listening experience for each room. With this feature, you can easily control and customize your music streaming experience based on your preferences and needs.


The 4STREAM APP is a powerful and convenient tool and free iOS& Android app that allows you to fully control your Arylic devices wirelessly. With this app, you can do music services playback, NAS/local files playback, preset content, mode swtich, Multiroom/Multizone control, EQ control, alarm clock, WiFi connection. With its user-friendly interface and comprehensive control features, the 4STREAM APP makes it easy to enjoy your music, your way.

The Arylic streaming devices come with a unique feature that allows you to quickly access them by inputting the device's IP address into your browser. This means you don't need to install any app or software to access the device's settings.

Using this feature, you can easily set your preset content, EQ controls, playback options, and even update the device's firmware. With this feature, you can quickly access and control your Arylic streaming devices, making it easy to enjoy high-quality audio with minimal setup time.

Enhanced Up2stream

The Up2stream AMP 2.1 offers several optional expansion boards that can be used to enhance its functionality and performance. These expansion boards include the Up2stream SPDIF board, Up2stream button board, and Up2stream IR extension board. Each of these expansion boards provides unique features and capabilities that can be used to customize and improve the performance of your Up2stream AMP 2.1 device. You can find all the boards in Accessories.

USB Sound Card for PC

Once you connect the Up2stream AMP 2.1 to your PC, it will be detected as a USB sound card. This allows you to stream audio from your PC directly to other devices connected to the Up2stream AMP 2.1. This feature provides a convenient way to extend your audio playback capabilities beyond your PC. Support both Windows & Mac PC.

ACPWorkbench Tuning Tool

Our proprietary ACPWorkbench software provides a powerful tool to customize and optimize the DSP settings of each unit of the Arylic streaming devices. This software allows you to adjust a range of settings, including L/R balance, frequency of every channel, pregain, and more. By fine-tuning these settings, you can achieve optimal audio performance and tailor the sound to your preferences.

In addition to DSP settings customization, the ACPWorkbench software also supports local firmware updates, define pins and configure other settings.

Smart Home Assistant Integration

The Up2stream AMP 2.1 offers a range of communication options, including HTTP API, UART, and TCP commands, providing flexibility for users to integrate the device into their existing smart home systems or to develop custom applications. Get API files below in the download portion and check the cases in our forum.

Easy WiFi SSID & BT Name Change

With the 4STREAM app, you can rename your Arylic streamimg device's WiFi SSID and Bluetooth name. The changes will stay even after a factory reset, untill you change it again.

Functional Knob Control

The Up2stream AMP 2.1 features 3 rotary knobs that enable effortless adjustment of volume, treble, and bass. However, these knobs also facilitate adjustments to the crossover frequency and mode switching. In addition to controlling sound characteristics, the Up2stream AMP 2.1 provides versatile functionality for a customized listening experience.

Optional Remote Control

The optional remote control is a useful addition to the Up2stream AMP, providing an easy and convenient way to control your music playback from a distance. Like play/pause, deep bass, adjust volume, and quick switch preset content from a distance.

Whether you're listening to music in your living room or in another part of your home, the remote control makes it easy to adjust your settings and enjoy your music to the fullest.


*Up2stream AMP 2.1 need ACPWorkbench tuning tool to switch the spdif configuration from spdif in to spdif out.

Newest Firmware Version



IEEE802.11 b/g/n 2.4G

5.0 SBC/AAC, 15M, BT Receiver

Wired Network:
Ethernet Single 10/100M RJ45

Power Input

12V-24V/DC in

Audio Input

3.5mm Line Input (1 Vrms)
4 pin connector Line Input (1 Vrms)

Micro USB Input
*SPDIF In pin connector

Audio output

Speaker Out and Subwoofer Out

Other I/O Interface

LED pin connector
IR pin connector
Button pin connector
GPIO pin connector

Amplifier Chip


Speaker Power

2x50W@4Ω + 100W@2Ω BTL load at 24V
2x30W@8Ω + 75W@4Ω BTL load at 24V
2x22W@8Ω + 48W@4Ω BTL load at 19V
2x15W@8Ω + 30W@4Ω m BLT load at 15V

Speaker Impedance

4-8Ω (Stereo)/2-4Ω(Sub)

USB Host

For USB pen drive/stick, 1000 songs limited.


Which Audio Amplifier Board Are Made For You ?

①The optional remote control needs to be used with the IR sensor board.

②Up2stream Amp V4/Mono, Up2stream Amp2.1 need ACPWorkbench tuning tool to switch the spdif configuration from spdif in to spdif out.

③The IR Sensor board needs to be used with the button board.

Wireless Capability

WiFi, Airplay , Spotify Connect, Qplay, Bluetooth 5.0, UPnP, DLNA

WiFi, Airplay , Spotify Connect, Qplay, Bluetooth 5.0, UPnP, DLNA

WiFi, Airplay , Spotify Connect, Qplay, Bluetooth 5.0, UPnP, DLNA

Wired Network

Ethernet RJ45

Ethernet RJ45

Ethernet RJ45





Audio Channel




Music Service

Spotify, Amazon Music, Deezer, TuneIn, Tidal, Qobuz, Napster, Internet Radio, iHeartRadio, QQ Music, QQFM

Spotify, Amazon Music, Deezer, TuneIn, Tidal, Qobuz, Napster, Internet Radio, iHeartRadio, QQ Music, QQFM

Spotify, Amazon Music, Deezer, TuneIn, Tidal, Qobuz, Napster, Internet Radio, iHeartRadio, QQ Music, QQFM

Maximum Speaker Power(24V, 4ohm/Sub, 2ohm)

2 x 50W + 100W

2 x 50W + 100W

2 x 50W(Stereo)

Analog Audio Input

Aux In(3.5mm Jack & Pin)

Aux In(3.5mm Jack)

Aux In(3.5mm Jack & Pin)

Digital Audio Input

Spdif In(Pin)

Optical In

Spdif In(Pin)

Analog Audio Output

Speaker Out

Subwoofer Out
Speaker Out

Stereo-Aux Out(Pin)
Mono out(Pin)
Speaker Out

Digital Audio Output



I2S Out(Pin)

Build Your Wireless Projects

Wireless Boombox

Shared by Gene Giesbrecht

Power Your Subwoofer

Shared by Jaime Mota

DIY 2.1 Amplifier

Shared by Oscar Wenstedt

Build 2.1 Multiroom System

Shared by Justin Murphy

Compatible Accessories

Up2stream Acrylic caseAcrylic case
Sale priceFrom $7.90
ESS9023 DAC boardbutton board
Sale priceFrom $10.00
ACPWorkbenchDSP tool


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Customer Reviews

Based on 51 reviews
Norbert Wicklein
Up2Stream Board - first experience

The Arylic Up2Stream 2.1 amplifier board is an excellent value for the money, offering a wide range of features that make it a standout choice in its category. One of its standout features is the compatibility with the ACPWorkbench Tuning Tool, which takes the amplifier's capabilities to the next level.

With the ACPWorkbench Tuning Tool, users can unlock a host of outstanding features, including low- and high-pass filters, speaker frequency correction, room correction, and more. This tool adds a level of customization and fine-tuning that is typically not found in amplifiers at this price point.

One of the strengths of the Arylic Up2Stream 2.1 amplifier board is its comprehensive documentation. It provides users with clear and helpful guidance on installation and operation. However, while the documentation for the board itself is top-notch, the documentation for the ACPWorkbench software could benefit from some improvement. Specifically, the extensive features found in the 'Audio Module' tab could be explained in more detail for a more user-friendly experience.

In terms of user support, the Arylic team shines. When faced with an issue regarding software installation limitations, their responsive and effective support team quickly resolved the problem within a day. This level of customer service adds significant value to the overall package.

In summary, the Arylic Up2Stream 2.1 amplifier board is an exceptional choice for those looking to enhance their audio setup without breaking the bank. Its compatibility with the ACPWorkbench Tuning Tool, combined with its excellent documentation and stellar customer support, make it a solid investment for audio enthusiasts looking to fine-tune their sound system to perfection.

positively surprised

great product, fast delivery and good customer service

Mohammad Mashhadi Jafari

Ora posso farvi vedere l'amplificatore realizzato.

Frederik Wijshoff
surprisingly good for its small size!

DIY amp 2.1: on thingiverse there is a case you can print. use .1 and print on a mirror for perfect top result. used an old laptop power kit to power it( it is really not that critical). I build two DML (1.2 m x .58 m) speakers ( dirt cheap) and added a sub. they sound surprisingly good with the 2.1 Amp, even without tuning with acmp workbench tool.
the amp 2.1 can be controlled with a logitech harmony remote. ( just download and install another arylic product) it has the same remote and hence the same ir codes! I listen a lot to ‚slow House‘ I tested over bluetooth, spotify and network play , all works fine. with long press on bass or treble buttons you can change crossover frequency, note: the higher the frequency, the more bass goes to sub. ( a bit counterintuitive) There is imho one minor point: if they could find a way to disable the beep when changing volume? ( I try to set it once and stay off the buttons and remote)
If connected to network, the amp can also be controlled through http api calls. (I suppose you could make a customised control screen with an old ipad or so, but I did not go that far).
I bought two. The other goes into a boombox or something of the like.
Have fun with it!

Balcan Sandu

A very good quality product, it connects very quickly to the network, also the application is very well optimized

One of the greatest amps!!!!

Great sound, great bass and stereo. I won't go in much detail, check out my YouTube Video.

Judge.me YouTube video placeholder

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