Pro-Ject Speaker Box 5 S2 Bookshelf Speakers

Pro-Ject Speaker Box 5 S2 Bookshelf Speakers

European-made 2-way bookshelf speakers with a 130mm fibreglass woofer, 25mm silk dome tweeter, and a wide choice of finishes for design-conscious stereo systems.

The Pro-Ject Speaker Box 5 S2 is a compact standmount speaker designed for customers who want proper hi-fi sound without ending up with a bulky cabinet dominating the room. Pro-Ject positions it as a European-made reference-quality bookshelf speaker, and the overall package leans nicely toward stylish two-channel systems where sound and finish both matter.

It uses a 25mm silk dome tweeter and a 130mm fibreglass cone woofer in a 2-way bass reflex cabinet, with Pro-Ject highlighting spacious, detailed sound along with full-bodied mids and tight bass. In real-world terms, that makes the Speaker Box 5 S2 a good fit for smaller lounges, studies, apartments, desktop-adjacent systems, or clean lifestyle hi-fi setups where you still want the system to sound like proper separates.

Compact Size, Proper Hi-Fi Intent

A small speaker that still looks and behaves like a serious stereo product

The Speaker Box 5 S2 is the sort of speaker that makes sense when the room does not suit a large floorstander but the customer still wants a genuine stereo setup. Its cabinet is compact, but Pro-Ject has clearly aimed it at proper hi-fi use rather than background-duty lifestyle audio.

That shows up in the way it is built. Pro-Ject lists an audiophile bass reflex design, sophisticated internal bracing, and an ultra-stiff non-resonating MDF cabinet. Those details matter because they help keep the cabinet better controlled, which is exactly what you want in a compact speaker that needs to sound clean and composed rather than boxy or blurred.

Designed to Sound Open and Lively

Detailed top end, full midrange, and punchy bass from a modest footprint

Pro-Ject describes the Speaker Box 5 S2 as spacious and detailed, with the silk dome tweeter handling clear highs and the fibreglass woofer giving the speaker its fuller mids and tighter low-end character. The quoted frequency response is 55Hz to 20kHz, which is sensible for a speaker of this size and points to a standmount that should sound balanced and engaging without pretending to be a big-room bass monster.

For the right buyer, that balance is the point. This is not a speaker that tries to win with sheer bulk. It is more about getting good stereo sound, a tidy footprint, and enough bass weight to feel satisfying in an everyday listening room.

A Strong Match for Stylish Stereo Systems

Good finish choice and clean presentation make them easy to live with

One of the more appealing parts of the Speaker Box 5 S2 is the finish range. The Australian product page lists Satin Black, Walnut, Satin Blue, Satin Green, Satin White, Satin Yellow, and Satin Wine Red, which gives it a lot more flexibility than the usual black-box bookshelf speaker.

That makes it easier to recommend into design-led rooms, compact apartment systems, or turntable-based setups where the system is meant to look considered rather than purely functional. Pro-Ject also includes an acoustically transparent magnetic front cover, which helps keep the look neat when the speakers are in more visible living spaces.

Easy to Match with Quality Electronics

Friendly size and sensible amplifier requirements for compact hi-fi setups

Published specs list 88dB sensitivity, 8-ohm nominal impedance, and recommended amplifier power from 10 to 150 watts. That puts the Speaker Box 5 S2 into the very usable category for a wide range of integrated amplifiers and compact hi-fi electronics.

For a store setup, that means it makes sense alongside quality smaller amplifiers, streaming amps, and tidy turntable-based systems where customers want a genuine stereo result without building a huge rack or filling the room with oversized speakers.

Specifications

Detailed Technical Specifications

For those who like to drag out all the useful bits

The Audio Experts Take

The Speaker Box 5 S2 makes a lot of sense for the customer who wants a proper stereo system without having to move straight into a large speaker. It has the sort of dimensions that work well in normal living spaces, but it is still clearly aimed at actual hi-fi use rather than background listening. The finish range is also a genuine selling point, because it gives you more flexibility when the system needs to look good in the room as well as sound good.

What we like here is that it feels like a sensible crossover product between lifestyle appeal and real stereo intent. Pair it with a good compact integrated amp or a quality streaming setup and you have the bones of a very enjoyable system that is easy to live with, easy to place, and much more visually interesting than the usual plain bookshelf speaker.

Brand new. Contact us for current availability, finish selection, and amplifier matching advice.