Name: Pro-Ject Speaker Box 3 Bookshelf Speakers Gloss Black - Open Box
Brand: Project
Price: 244.0 AUD
Availability: InStock

Pro-Ject Speaker Box 3 Bookshelf Speakers Gloss Black - Open Box

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A compact two-way bass-reflex speaker from Pro-Ject with a 0.75-inch silk dome tweeter and a 3-inch fibre glass bass/mid driver. It has a nominal impedance of 4 ohms and a stated frequency response of 89 Hz to 20 kHz.

THIS IS AN OPEN BOX PRODUCT AND MAY HAVE SOME COSMETIC BLEMISHES, PHOTOS COMING SOON, HOWEVER WE WILL SEND PHOTOS TO YOU BEFORE SHIPPING TO CONFIRM WITH YOU. normal warranty applies

Pro-Ject calls the Speaker Box 3E its ultra compact speaker, suited to desktop use and home cinema systems. This listing is the gloss black finish.

Design

2-way bass reflex

Drivers

0.75" tweeter, 3" bass/mid

Response

89 Hz - 20 kHz

Impedance

4 ohms

Sensitivity

85 dB (1 W / 1 m)

Size (H × W × D)

160 × 106 × 152 mm

Why you will love it

Compact stereo sound

Pro-Ject developed the Speaker Box 3E as a small speaker that delivers real stereo audio, unlike a mono Bluetooth speaker or a soundbar. It describes the sound as having low coloration and great transparency.

The cabinet is non-resonating MDF with a rear-firing bass reflex port.

Pro-Ject Speaker Box 3E in gloss black, front view

Rear of the Pro-Ject Speaker Box 3E showing the bass reflex port and terminals

Connections and grills

The rear has gold plated banana terminals. Magnetic speaker grills are included, Pro-Ject says.

Wall mount brackets are sold separately.

Choosing an amplifier

Pro-Ject recommends an amplifier of at least 10 watts per channel, and lists a recommended range of 10 to 80 watts. It names the Stereo Box S3 BT and MaiA S3 as perfect partners.

Is it right for you?

A great fit if you…

Want a small speaker for a desk or a compact room
Want speakers for a small home cinema system
Have an amplifier of 10 to 80 watts per channel

Worth knowing

This is an open box product; please read the condition note at the top of this page
Pro-Ject lists a frequency response starting at 89 Hz, so a subwoofer may suit some rooms
Wall mount brackets are sold separately
Pro-Ject recommends an amplifier of at least 10 watts per channel

Build your system

The Speaker Box 3E needs a stereo amplifier.

Amplifier: The Pro-Ject Stereo Box E is rated at 2 x 40 W into 4 ohms, inside Pro-Ject's recommended 10 to 80 watt range. Browse more stereo amplifiers.
Turntable: Add a Pro-Ject E1 BT turntable.
Placement: Browse speaker stands and bookshelf speakers.

Specifications

Speaker

Enclosure	Bass reflex via rear-firing port
Drivers	0.75" silk dome tweeter, 3" fibre glass bass/mid
Frequency response	89 Hz - 20 kHz
Nominal impedance	4 ohms
Sensitivity	85 dB (1 W / 1 m)
Recommended amplifier power	10 to 80 watts
Terminals	Gold plated banana terminals
Finish	High gloss black (this listing)
Dimensions (H × W × D)	160 × 106 × 152 mm
Weight	1.37 kg each

Specifications from Pro-Ject Audio Systems' Speaker Box 3E product page, checked November 2026.

Questions people ask

Is this unit new?

No. This is an open box product. Please read the condition note at the top of this page.

What amplifier do I need?

Pro-Ject recommends at least 10 watts per channel and lists 10 to 80 watts.

Can I wall mount them?

Pro-Ject says wall mount brackets are available separately.

Do they have grills?

Yes. Pro-Ject lists magnetic speaker grills as included.

What is the impedance?

Nominal impedance is 4 ohms.