Pro-Ject Stream Box E

Pro-Ject adds Stream Box E WiiM OS streamer at €179

Pro-Ject has added the Stream Box E as an entry-level multi-room streamer and preamplifier. The compact unit runs on WiiM OS, streams up to 24-bit/192 kHz and carries a €179 MSRP including VAT. It works with existing integrated amplifiers, separate power amplifiers or active speakers.

Georg S. Kuklick

Pro-Ject added the Stream Box E to its hi-fi ecosystem as an entry-level multi-room streamer and preamplifier. The WiiM OS unit streams up to 24-bit/192 kHz and carries a €179 MSRP including VAT. It was announced in April 2026.

The Stream Box E is designed to add network streaming and volume control to an existing system. It can be used with an integrated amplifier, a separate power amplifier or active speakers. Pro-Ject Home app control handles operation, and Pro-Ject True Wireless Sending and Receiving lets it share an analogue RCA input source across a compatible Pro-Ject multi-room network.

Connectivity covers dual-band Wi-Fi 802.11 a/b/g/n/ac on 2.4 GHz and 5 GHz networks, plus Bluetooth 5.0 with SBC and AAC codec support. The unit has stereo RCA analogue input and output sockets, and digital output is provided through optical S/PDIF Toslink. Pro-Ject specifies a nominal audio output level of 3 Vrms.

The published audio figures include 20 Hz to 20 kHz frequency response at -1.5 dB, channel separation greater than 106 dB at 10 kHz, line-output signal-to-noise ratio greater than 102 dB and line-output THD below 0.009%. The Stream Box E uses a metal chassis with an aluminium front panel. It is offered with silver or black front panels and uses an external 5 V/1000 mA DC power supply.

Key specifications

Product type

Entry-level multi-room streamer/preamp

Streaming technology

WiiM OS

Control app

Pro-Ject Home

Maximum streaming resolution

Up to 24-bit/192 kHz

Wi-Fi

Dual-band 802.11 a/b/g/n/ac, 2.4 GHz and 5 GHz

Bluetooth

Bluetooth 5.0 with SBC and AAC codecs

Analogue input

RCA stereo

Analogue output

RCA stereo

Digital output

Optical S/PDIF (Toslink)

Nominal audio output level

3 Vrms

Frequency response

20 Hz–20 kHz at -1.5 dB

Channel separation

>106 dB at 10 kHz

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© 2026 Neo Digital Magazines llc. All rights reserved.

Built by humans with AI in Berlin, New York, and Vienna.

© 2026 Neo Digital Magazines llc. All rights reserved.

Built by humans with AI in Berlin, New York, and Vienna.

© 2026 Neo Digital Magazines llc. All rights reserved.