The Wireless Box E is a compact and versatile streaming amplifier designed to transform traditional passive speakers into modern wireless active audio systems. By connecting directly to speaker terminals of Pro-Ject loudspeakers, it eliminates the need for a separate amplifier while delivering powerful and efficient audio performance. For speakers from other brands, a Connect it LS Flex extension cable is available separately, expanding compatibility and making the system even more adaptable. This flexibility makes the Wireless Box E an ideal solution for users who want to upgrade their existing speaker setups with minimal effort, avoiding complex installations or bulky equipment. Overall, it combines modern wireless functionality with straightforward usability, offering a smart and efficient way to bring traditional audio systems into the digital age. Features Streaming technology powered by WiiM OS™ Attaches directly to speaker terminals Turns any passive speaker into an active speaker system Pro-Ject True Wireless Receiving: any turntable, CD player, FM/DAB radio, TV, etc. connected to Uni Box S3, Stream Box E or other next-generation Pro-Ject streamers* can be streamed to Wireless Box E Wireless vinyl streaming from T2 W Pro-Ject Home app with access to countless streaming services 1 x 25W / 50W at 8 / 4 ohms Dual-band Wi-Fi 802.11 a/b/g/n/ac 2.4 GHz & 5 GHz Multi-room capable Compatible with Uni Box S3, Stream Box E and next-generation Pro-Ject streamers Aluminium front panel and metal chassis Available with silver or black front panel Seamless Wireless Integration Setting up the WiFi connection is a breeze. Just open the app and it automatically detects your new Wireless Box E and walks you through the setup process. Featuring Pro-Ject True Wireless Receiving technology, the Wireless Box E can receive audio directly from the Uni Box S3 and Stream Box E. Once connected, audio signals from various source devices can be distributed wirelessly to multiple Wireless Box E units within the same network, enabling flexible multi-room playback. You can group multiple latest generation Pro-Ject & WiiM streamers, build flexible multi-room systems and listen to your favourite vinyl records anywhere. Versatile Streaming Amplifier The Wireless Box E is a versatile device that can be used in many different ways. A pair of Wireless Box E connected to a pair of passive speakers creates a standalone, clean, minimalist true hifi stereo system. Nothing else is required. No speaker cables to manage. Complete freedom for speaker placement. Designed for flexibility, your system can evolve at any time. Add a Uni Box S3 or Uni Box S3 Pre* to introduce analogue and digital inputs, transforming your setup into a powerful central hub. Every connected source can then be streamed wirelessly to your Wireless Box E speakers or to multiple systems throughout your home. Challenging room layouts, such as large doorways or open living spaces, become effortless to handle without traditional cabling limitations. The system expands seamlessly into Pro-Ject True Wireless Multi-Room Streaming. The Wireless Box E makes it easy to build elegant, cost-effective true hi-fi stereo systems in every room, each capable of receiving the sources connected to your central Uni Box hub. *Uni Box E, Uni Box E Pre, Uni Box S3 Pre available in late 2026 and across 2027. Option 1: Wireless Hifi Stereo Streaming Amplifier With a pair of Wireless Box E and a pair of passive speakers you can build wireless true hifi stereo systems. You’ll have the greatest freedom in speaker placement. You only need one power connection for each Wireless Box and speaker combination, removing the need to manage traditional speaker cables. This setup option gives you access to online streaming services and Bluetooth. The streaming services and volume are comfortably controlled on your phone or tablet in the Pro-Ject Home app. Option 2: Uni Box Hub Streaming System The Uni Box S3 or Uni Box S3 Pre* are integrated streaming amplifiers or preamplifiers respectively. For challenging large room layouts, where speaker cable placement is impractical, the Wireless Box E can be added. The Uni Box is then able to stream any analogue or digital input directly to the Wireless Box E attached to the back of the speakers. A beautiful solution for cable management while giving you access to analogue, digital and streaming in a modern hifi stereo system. Option 3: Pro-Ject True Wireless Multi-Room Streaming Whole-Home Hi-Fi. Seamlessly Connected. Your turntable in the living room, connected to the Uni Box S3, becomes the heart of your entire home audio experience. Stream your vinyl collection or any digital source to every room with effortless wireless connectivity. Living Room: True High Fidelity Stereo Performance The main system features the powerful Speaker Box 12 E Carbon for an immersive, high-fidelity stereo listening experience. In this particular case, large glass terrace doors make traditional speaker wiring impractical. The Wireless Box E eliminates the need for speaker cables entirely. Enjoy elegant, clutter-free installation while streaming true stereo sound wirelessly. Multi-room functionality allows you to use multiple streaming devices across different rooms and control them from the Pro-Ject Home app. You can play the same music throughout your home for a synchronised listening experience, or stream different audio in each room independently. This creates a flexible, whole-home audio system that adapts to your listening preferences. Bedroom: Music Without Compromise A refined setup with Speaker Box 3 E Carbon paired with Wireless Box E delivers rich, detailed sound in a compact format. Stream your turntable or favourite digital sources directly to the bedroom. Perfect for relaxed listening from bed. Kitchen: Vintage Meets Modern Bring new life to your favourite passive vintage loudspeaker. The Wireless Box E discreetly transforms it into a modern wireless active system, staying neatly hidden while letting your classic speaker design take centre stage. Timeless aesthetics meet contemporary streaming access. Streaming Services Pro-Ject Home gives you access to all the major and many smaller streaming services. The Wireless Box E delivers stable, high-quality audio streaming across a wide variety of platforms, giving you seamless access to your favourite music with exceptional clarity and reliability. You can group multiple latest generation Pro-Ject & WiiM streamers and build flexible multi-room systems. Performance and Connectivity The integrated amplifier delivers 1 x 25 watts at 8 ohms and 1 x 50 watts at 4 ohms, providing sufficient power for a wide range of speaker configurations. Dual-band Wi-Fi connectivity (802.11 a/b/g/n/ac) ensures reliable performance on both 2.4 GHz and 5 GHz networks, supporting stable streaming even in demanding network environments. Designed to integrate effortlessly within the Pro-Ject ecosystem, the Wireless Box E is fully compatible with products such as the Uni Box S3, Stream Box E, and other next-generation Pro-Ject streamers. WiiM streaming products are compatible too. This flexibility makes it a future-proof addition to any modern audio system, whether used as a standalone solution or as part of a larger multi-room setup. The Wireless Box E features a high-quality aluminium front panel combined with a robust metal chassis, ensuring durability and a premium look. The speaker connectors on the Wireless Box E allow it to be connected directly to the back of many speakers. It works with Pro-Ject speakers and many other brands. If it doesn’t, a Connect it LS Flex extension cable is available separately, expanding compatibility and making the system even more adaptable. Specifications Output Power: 1 x 25W / 50W at 8 / 4 ohms (1% THD) WiFi: Dual-band Wi-Fi supports 802.11 a/b/g/n/ac 2.4 GHz and 5 GHz networks BT Version/Profile: Bluetooth 5.0, SBC and AAC codec Streaming Technology: WiiM OS Frequency Response (20Hz–20kHz):
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