Pro-Ject Wireless Box E – Compact Streaming Amplifier for Passive Speakers

The Pro-Ject Wireless Box E turns any pair of passive speakers into a fully wireless, app-controlled stereo system. With a built-in stereo amplifier, dual-band Wi-Fi, Bluetooth 5.0 and multiroom support, it removes the need for a separate amplifier or streamer—just connect speaker cables, open the app and play. Engineered to pair perfectly with Pro-Ject’s Speaker Box S2 and other compact bookshelf speakers, it delivers a tidy, modern hi-fi solution available at Soundium.

Key Features

• Built-in stereo amplifier: 2 × 25 W into 8 Ω / 2 × 50 W into 4 Ω drives most passive bookshelf speakers
• Pro-Ject True Wireless Receiving: Receives audio directly from compatible Pro-Ject streamers without intermediate hardware
• Dual-band Wi-Fi & Bluetooth 5.0: 802.11 a/b/g/n/ac on 2.4 & 5 GHz plus SBC and AAC Bluetooth codecs
• Multiroom ready: Group multiple devices together for synchronized whole-home audio
• App-based setup: Automatic device detection and easy configuration via the Pro-Ject Home app
• Compact, hi-fi build: Aluminum enclosure with banana-plug speaker terminals for clean, secure cabling

Customer Benefits

Wireless Box E is the easiest path from a passive bookshelf speaker pair to a modern, streaming-ready hi-fi system. You skip a stack of separates and still get audiophile-grade Pro-Ject sound, multiroom flexibility and seamless integration with your existing turntable and streaming services.

Quick Specs

• Output power: 2 × 25 W / 8 Ω; 2 × 50 W / 4 Ω (1% THD)
• Frequency response: 20 Hz – 20 kHz (<-1.5 dB at 4 Ω)
• SNR: 96 dB (100 dB A-weighted) at 4 Ω
• THD: <0.12% at 5 W / 4 Ω
• Wi-Fi: Dual-band 802.11 a/b/g/n/ac (2.4 & 5 GHz)
• Bluetooth: 5.0 (SBC, AAC)
• Speaker output: 4 mm banana plug terminals
• Power supply: 22 V / 1 A DC, 100–240 V, 50/60 Hz
• Standby power: <0.5 W

What’s in the Box

• Pro-Ject Wireless Box E
• External power supply
• Wi-Fi antenna
• User manual

Use Cases / Ideal For

Perfect for audiophiles upgrading passive bookshelf speakers to wireless, vinyl listeners building a tidy multiroom setup, or anyone wanting a single compact box that powers speakers and streams from a phone, app or Pro-Ject streamer.

Compatibility

Works with the Pro-Ject Home app on iOS and Android and integrates seamlessly with Pro-Ject streamers via True Wireless Receiving. Compatible with most passive bookshelf or compact tower speakers via banana-plug terminals.

Pros & Cons

✅ Pros:

• Streaming amplifier in one compact unit—no separate amp needed
• Robust dual-band Wi-Fi and modern Bluetooth 5.0 codecs
• Multiroom support and Pro-Ject ecosystem integration

⚠️ Cons:

• Power output is best matched to compact bookshelf speakers, not large floorstanders
• External PSU instead of integrated power supply

The Pro-Ject Wireless Box E is the simplest, smartest way to give passive speakers a wireless future—available now at Soundium.