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Adastra IW30B-WPS4 4" Outdoor Bluetooth Speaker System

Availability: Sold out

Product Code: IW30B-WPS4-01

Brand: Adastra

No. Of Speakers:

The Adastra IW30B is a stereo audio amplifier in a minimalist compact housing for concealing in a wall or ceiling cavity to power a ceiling speaker system.

You can stream your music via Bluetooth connection or connect an audio input such as a TV or WiFi stream via the stereo AUX input.

The Adastra IW30B also features a stereo AUX output for daisy-chaining several amplifiers in a larger installation.

Connecting to ceiling or wall speakers provides an expandable discreet sound installation for home. The Adastra IW30B is also at home in commercial applications such as receptions, waiting rooms, offices etc.

Overall the new IW30B amplifier is almost unbeatable value for money.


  • Stream music via Bluetooth

  • Connect an audio input

  • Daisychain multiple amplifiers for larger areas.

  • Easy to install

  • Works with any smart phone, tablet, computer with Bluetooth.

  • Complete ready to install kit with 4" on wall outdoor speakers.

What You Get

1 x Adastra IW30B 2 x 15W Bluetooth stereo amplifier
1 x 12V dc power adaptor (3 pin UK plug)
2 x 5m outdoor speaker cables
2 x Adastra WPS4 4" On wall outdoor speakers

Amplifier Specification

  • Power supply: 12Vdc, 2000mA (adaptor included)

  • Bluetooth version: 4.0

  • Output: rms @ 4 Ohms2 x 15W

  • Minimum impedance: 4 Ohms per output

  • Speaker outputs: L-/L+/R-/R+ screw terminals (Euroblock)

  • Auxiliary input: L/G/R screw terminals (Euroblock)

  • Auxillary output: L/G/R screw terminals (Euroblock)

  • Dimensions: 124 x 40 x 27mm

  • Weight: 60g (excluding power adaptor)

Speaker Specification

These stylish two-way, weather resistant speakers are suitable for indoor and outdoor applications.

These speakers will excel as a straightforward stereo pair, for multimedia or as part of a surround sound system.

Despite their compact size, these speakers can deliver a full sounding output. Supplied with wall-mount brackets.

Speaker Features

  • Weather resistant, IP35 rated

  • 2-way

  • Polypropylene housing with aluminium grille

  • Polypropylene woofer and fluid-cooled Polycarbonate tweeter

  • Gold-plated compression terminal posts

  • Sold in pairs


Woofer 100mm (4")
Frequency response 80Hz - 20kHz
Power rms 30W
Sensitivity 88dB @ 1W/1m
Dimensions 135 x 205 x 136mm
Weight 1.4kg