Pro-Ject Uni Box S3 Integrated Streaming Amplifier Specs Sheet

Pro-Ject Uni Box S3 Integrated Streaming Amplifier with Bluetooth and Built In Phono Stage Silver - Pro-Ject UNIBOXS3S

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PRODUCT INFORMATION

Uni Box S3

Universal integrated amplifier with modern streaming

MSRP 799 (incl. VAT)

· NEW Streaming by market leading technology WiiM OS TM · NEW App Pro-Ject Home · NEW Powerful Multi-Room capabilities · NEW Pro-Ject True Wireless Sending and Receiving:
Stream any input to your network · NEW Countless streaming services · NEW Tidal Connect, Spotify Connect, Qobuz, etc ... · NEW TV ARC input · Wireless vinyl streaming from T2 W · 2 x 40 watts @ 4 ohms · Dual mono design principle · 8 inputs (3x analog, 3x digital, 1x eARC, 1x WiFi/Bluetooth) · Cirrus Logic CS4344 24bit/192kHz Multi-bit Delta Sigma · S/PDIF inputs support up to 24bit and 192kHz · Phono MM input · Analogue volume control with motor driven potentiometer · 6,3mm jack headphone output · Variable output for subwoofer or second zone amp · Remote control included · Rigid aluminium casing protects against interference · Available in silver or black · Made in Europe

colour options:
Power output: 2x 23W / 40W at 8 / 4ohms (1% THD) Frequency response (20Hz - 20kHz): < 0,4 - 0,9dB @4ohms Channel separation: - 67dB at 10kHz Signal to noise ratio: 94dB (9dB-,A` weighted) @4ohm THD: < 0,05% at 10W / 4 ohms Headphone amplifier: 70mW at 32ohm (1%THD) Analogue inputs: 2x pair RCA, 1x phono MM (RCA) Digital inputs: RCA coax, 2 x Toslink, eARC, WiFi/BT Power amplifier: Texas Instruments TPA3221DDV DA-converter: Cirrus Logic CS4344 24bit/192kHz Variable output: 1x pair RCA Speaker connectors: 4mm Ø banana plugs, spades connectors or naked wire Wireless connectivity: Wi-Fi 5, 802.11 b/g/n/ac 2.4 G and 5G dual bands, Bluetooth 5.1, SBC and AAC Power supply: 20V/3A DC; 100 - 240V, 50/60Hz Standby Power consumption: < 0,5 watts Dimensions WxHxD: 206x55x153 (176mm with sockets) Weight: 1100 g without power supply

PRO-JECT AUDIO SYSTEMS www.project-audio.com

Technical data and price changes reserved. Page 1/6

Your HiFi streaming amplifier -
Analogue and streaming done right
The Uni Box S3 is a compact all in one integrated streaming amplifier solution. It combines the audiophile specialities of the MaiA S3 and adds high quality streaming capabilities. The Uni Box S3 dares to break away from the norm, redefining what a modern streaming amplifier can be. While many amplifiers are dominated by deeply integrated streaming tech - compromising their core design - the Uni Box S3 takes a different path.
The Uni Box S3 masterfully bridges the worlds of analogue and streaming. Your analogue sources - like turntables - are not digitized, preserving their rich and lifelike sonic character. With a fully analogue pre- & and power amp design, every nuance of your music is delivered with breathtaking punch and dynamic precision. At Pro-Ject Audio Systems, our mastery of analogue hardware design allows us to craft an astonishingly powerful amplifier within the sleek, compact aluminium case of the Uni Box S3. All this power remains usable entirely without a mobile app or the need to constantly update software.

PRODUCT INFORMATION
Headphone Output

The Uni Box S3 retains all the analogue design principles of the MaiA S3:
· Same powerful amplifier technology
· Fully analogue pre- & poweramp design
· High-quality MM phono input with exceptionally low noise yet high gain (46dB) - your turntable deserves a great phono stage!
· Analogue & digital inputs
· Headphone output
And new in the Uni Box S3:
· Carefully integrated streaming input
· Versatile multi-room options
· Stream any connected device - like your turntable, CD player or TV - to other network streamers in your home*
· TV ARC connection

Superior Design
Fully analogue pre- & poweramp design. Analogue inputs stay analogue and are not digitized. Careful integration of digital streaming technology -
with industry leading WiiM OS TM Clean separation of analogue and digital for longest product lifecycle.

Motor Potentiometer & Analogue Volume
Control

Fully Analogue Dual Mono
Amplifier Design

*Compatible with Uni Box S3. Compatible with Stream Box E, Stream Box S3 & Wireless Box E available later in 2025.

PRO-JECT AUDIO SYSTEMS www.project-audio.com

Technical data and price changes reserved. Page 2/6

Partnering with WiiM, the Uni Box S3 streaming technology is powered by the industry leading WiiM OSTM. The Cirrus Logic CS4344 DAC offers a high quality resolution of up to 24bit and 192kHz.
With the Pro-Ject Home app you control the streaming options on input 8 - the streaming input. Setting up the WiFi connection is a breeze. Just open the app and it automatically detects your new Uni Box S3 and walks you through the setup process. Comfortably reset the WiFi connection via long press of the Stream button on the front panel.
Pro-Ject Home gives you access to all the major and many smaller streaming services. You can group multiple latest generation Pro-Ject streamers* and build flexible multi-room systems.
The Uni Box S3 even allows you to stream any of your connectected devices - turntable, CD player or even TV - to other compatible streamers*.

PRODUCT INFORMATION
Cirrus Logic CS4344
24bit/192kHz Multi-bit Delta Sigma

Uni Box S3 streaming its input to a Stream Box E and a stereo pair of Wireless Box E in different rooms - listen to your turntable in every room.

With the supplied remote you operate the analogue volume control, switch inputs and mute/unmute the amplifier.

*Compatible with Uni Box S3. Compatible with Stream Box E, Stream Box S3 & Wireless Box E available later in 2025.

PRO-JECT AUDIO SYSTEMS www.project-audio.com

Technical data and price changes reserved. Page 3/6

PRODUCT INFORMATION

Multiroom Setup
Living Room

Bedroom

Speaker Box 5 S2

Debut EVO 2

Wireless

Connect it Phono S RCA

Uni Box S3

Wireless

Connect it LS S

Wireless

Wireless Box E & Speaker Box 3 E

Uni Box S3 streaming the Debut EVO 2 turntable wirelessly to your bedroom system consisting of a stereo pair of Wireless Box E* & Speaker Box 3 E. Enjoy your turntable on a clean and proper HiFi Stereo system in your bedroom - no cable management required.
*Wireless Box E available later in 2025.

PRO-JECT AUDIO SYSTEMS www.project-audio.com

Technical data and price changes reserved. Page 4/6

PRODUCT INFORMATION

Stream Everything
Spotify, Tidal, Amazon Music, Qobuz, Napster, Pandora, TuneIn,
Deezer, and many more.

Customize Your Sound
Stream music up to 24-bit & 192 kHz from streaming platforms or your own library. Personalize your sound experience with
the included EQ functions.

PRO-JECT AUDIO SYSTEMS www.project-audio.com

Technical data and price changes reserved. Page 5/6

PRODUCT INFORMATION
Versatile In- and Outputs
The Uni Box S3 offers a phono RCA MM input as well as two line RCA inputs for e.g. the CD Box S3. You can also connect digital sources like your TV or a CD transport via the coax or optical S/PDIF inputs and use the internal DAC with a quality up to 24bit and 192kHz.
It also provides versatile output options. Use your favourite headphones to privately enjoy your favourite tracks or connect your speakers with the 4 mm banana plugs and the low noise amplifier will do the rest and provides you musical sound with lifelike characteristics. The variable RCA output also allows you to include a subwoofer or another power amplifier in your setup.

Phono Input
MM compatible high quality phono input for your turntable

Variable Output Connect your subwoofer for some extra bass
Streaming WiFi streaming of Hi-Res audio up to 192 kHz/24 bit; BT 5.1

Speaker Output
The gold plated terminals output powerful 40W for your favourite speakers

Line Inputs Connect external source devices via the 2 line inputs (e.g. CD player)
Digital S/PDIF Inputs Use the high quality internal DAC and connect optical or coaxial source devices
PRO-JECT AUDIO SYSTEMS www.project-audio.com

ARC TV Input Connect your TV and enjoy highest audio quality
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