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The Arylic Up2Stream Amp 2.1 is a high-performance, compact amplifier board designed for DIY audio enthusiasts, custom builders, and system integrators. It provides the core technology to transform any passive speaker setup into a modern, networked 2.1 streaming system.
This board delivers robust Class-D power to two main stereo channels and includes a dedicated Subwoofer output. This 2.1 configuration ensures deep, resonant bass and crisp highs, making it perfect for custom soundbars, powered subwoofers, and innovative sound projects where exceptional low-frequency response is crucial.
The Up2stream Amp 2.1 is a versatile
stereo amplifier that seamlessly bridges
the gap between classic audio and
modern streaming. lt not only powers youipassive speakers with a robust 2x100W
output but also features a dedicated 60Wsubwoofer channel for a full 2.1
soundstage.With built-in Wi-Fi and
Bluetooth, it offers access to high.
resolution streaming services, multi-roomaudio, and effortless wireless playback
from any device. lt's the all-in-one heart
of a modern hi-fi system.
| Feature | Up2Stream Amp V4 | Up2Stream Amp 2.1 | Up2Cast Amp |
|---|---|---|---|
| Output Power | 50 W × 2 @ 4 Ω | 50 W × 2 + 100 W Sub Out | 50 W × 2 @ 4 Ω |
| Amplifier Type | Class-D (TPA3116) | Class-D (TPA3116) + Sub Amp | Class-D (TPA3255) |
| Audio Resolution | 24-bit / 192 kHz | 24-bit / 192 kHz | 24-bit / 192 kHz |
| Supported Protocols | AirPlay 2, DLNA, Spotify Connect, TIDAL Connect, Qobuz | AirPlay, DLNA, Spotify Connect, TIDAL Connect | AirPlay 2, DLNA, Spotify Connect, TIDAL Connect |
| Bluetooth | Bluetooth 5.2 | Bluetooth 5.0 | Bluetooth 5.2 |
| Inputs | RCA Line-In, Optical In | RCA Line-In, Optical In | Optical In, RCA Line-In |
| Outputs | RCA Pre-Out, Sub Out, Speaker Out | RCA Pre-Out, Sub Out, Speaker Out | RCA Pre-Out, Sub Out, Speaker Out |
| Network Connectivity | Wi-Fi 2.4 / 5 GHz + Ethernet | Wi-Fi 2.4 GHz + Ethernet | Wi-Fi 2.4 / 5 GHz + Ethernet |
| Multiroom Support | ✅ (4STREAM App / Web UI) | ✅ (4STREAM App / Web UI) | ✅ (4STREAM App / Web UI) |
| DAC Chip | Upgraded Hi-Res DAC | Integrated DAC | ESS 9038 DAC |
| Control Methods | 4STREAM App, Web UI, IR Remote | 4STREAM App, Web UI | 4STREAM App, Web UI |
| Firmware Update | OTA via App or Web | OTA via App | OTA via App |
| Use Scenario | Hi-Res multiroom system | 2.1 home theater / subwoofer setup | Premium Hi-Fi wireless amp |
| Typical Price Range | ≈ $129 – 149 USD | ≈ $99 – 119 USD | ≈ $179 – 229 USD |
Spotify, Apple Music Amazon Music, Tidal Qobuz, TuneIn, Internet Radio, BBC Radio, Napster, iHeart Radio, Radio Paradise.
Play and control from your iPhone, iPad or Mac directly. Support streaming directly from iTunes.
Flexiable to play from any audio sources from Bluetooth, like YouTube, Netflex, Tiktok or more.
Fully control with music service, multiroom, source switch, volume control. Change WiFi, Bluetooth name.
listen to the radio and your favorite playlists easily via web browsers.
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.
Use GO CONTROL APP for 10 band advanced EQ control, and custom as you like. Apply on all your audio sources.
ACPWorkbench Tuning Tool is an advanced tuning tool that you can adjust specific EQ for each channel and switch pins configuration.
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, and Up2Stream IR extension board. You can find all the boards in Accessories.
Yes, that is available.
You may need to setup this configuration by our ACPWorkbench Tuning Tool.
Set different frequency for different channel.
You can use any software that supports Airplay, DLNA or UPnP protocols. Such as iTunes, Muiscbee, Foobar2000 etc.
Yes, this is available. There are 2 ways you can do this.
1. 4STREAM APP> Internet radio> Click on the menu icon on the top right corner.>You should see a "Custom URL" button, then you can put in your link there and listen to the radio that URL points to.
2. Entry web control>Radio>register your account>my station
Currently , Up2Stream Amp 2.1 only support connecting Google Home or Alexa via Bluetooth or line in.
