Features：

- 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.

Specifications：

Wireless network: IEEE802.11 b/g/n 2.4G

Ethernet: Single 10/100M RJ45

Bluetooth: 5.0,SBS/AAC

USB Host: Play USB music

THD+N: 0.03%，@1kHz 50W+50W 24V-4Ω

Speaker Impedance: 4-8Ω

Music Format: FLAC/MP3/AAC/AAC+/ALAC/APE/WAV

Decoding: Up to 24bit/192kHz

Protocols: AirPlay,DLNA,UPnP,Spotify Connect,Qplay

Dimensions: 110*80*22mm

Optional: IR Remote Controller

Packages Included：

1x Up2Stream AMP v4

1x 4Pin Analog Connector

1x Screw Driver

2x Antenna

1x Users Manual

DIY Bluetooth Amplifier Board for your Stereo System

Still running cables around your audio system? Want to play music from the internet? Up2Stream AMP v4 Wifi & Bluetooth Amplifier Board is perfect for you. You can use AMP v4 to easily build your own wireless stereo system. AMP v4 can provide you with 50Wx2 power to 4ohm speakers and you can stream online music from many famous online music services like Spotify, Deezer, TuneIn and more.

50W*2 Stereo Wifi & Bluetooth Amplifier Board

PC support and Tuning Tool
Supports connection to PC through micro USB to act as external DAC, also you can use our ACPWorkbench to customize the different frequency and equalizer settings for your favorite music.

More Extension

There are both Digital output (I2S) and Analog output (DAC) for you DIYers to be able to connect other amplifiers to extend the music power.

Easy Switch Mode

You can easily change AMP Mono output mode from Mono to Stereo or vice versa, just see what is best fit for you.

DIY Your Multiroom Audio

When you have speakers in multiple rooms, you can hook up multiple AMP v4 to form a multiroom audio system. You can play the same music to all the rooms at the same time in sync. This can let your guess enjoy the booming music all over your house when you host a house party.

Brilliant Immersive Stereo Sound

Capable of delivering brilliant stereo sound to produce an immersive audio experience that makes you feel like you are in the scene. Powerful room filled with immersive stereo sound will change your music experience.

All Musics You Like

Huge music resources supported like Spotify, Pandora, Amazon Music, Tidal, Deezer, Qobuz, Internet Radio, iheart Radio, Napster etc. Except online music, you also can play local music by NAS, USB storage where you have collected your favorite song for years.

Wireless Connectivity

Streaming your audio all the way by Wifi, Bluetooth 5.0, DLNA, UpPnP, Airplay, Spotify Connect.

Free iOS & Android App

Our App called “4stream” that is compatible to your iOS & Android system. All the features can be simply controlled by App. And you also can receive the notification for our regular online firmware update automatically in our App.

-What is the difference between Up2stream Amp Mono and Up2stream Amp V4?

Actually these two are the same DIY audio amplifier module, but we have pre-set the mode jumpers on the audio module for the consumer&x27;s convenience. For example, if you want to buy a stereo amplifier board, we have pre-set the stereo mode for you. If you want to buy a Mono amplifier board, you will get the Mono mode pre-set when you receive it. Of course, if you want to switch modes later, it&x27;s very easy, just follow the instructions in the manual to move the jumper.

Package Included

True Customer Feedback

Manjunatha from US

"I bought this for converting existing ceiling speakers in to wireless controlled speakers. I couldn&x27;t be more happier than the end result. I bought three of these units along with the cases. All my visitors ask me what these units are. When I demo what this can do, my family and friends are wow&x27;ed Let me just say our kitchen is a very lively place now especially during cooking dinner time - thanks to the combination of these amps + spotify."

WMcD from CA

"Powered with 1 of 4 purchased Up2Stream amplifiers, I built a custom suitcase speaker built from reclaimed wood and Sony Speakers saved from the garbage. I found the go to Amp for all my projects with this product. A must have for all DIY speaker builders. Great Sound and build quality."

O***r

" The sound quality is read and I am using then for my 5 inch full range speakers. "