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Adastra Bluetooth Bathroom Music System + 5" Water-Resistant Ceiling Speakers (Pair)

by Adastra
£69.99 (inc. VAT)


This Adastra Bluetooth Music System comes complete with 2x 5" water-resistant in-ceiling speakers and is a cost-effective audio solution that brings high-quality music to your bathroom, kitchen or wet-room, etc. 

Playing music in your bathroom or kitchen has never been easier; simply pair your smartphone or table to the Bluetooth amplifier and away you go! You can even pair your Amazon Alexa or Google Home and control the system with your voice 'Alexa play the radio'. Alternatively, you can plug a device straight into the Aux/TV input. 

Our Adastra Bluetooth Bathroom Music System is quick and easy to install and has you streaming all of your favourite music in no time. The supplied Bluetooth amplifier is extremely compact and can sit in a cupboard, in the wall or even above the ceiling. The water-resistant speakers are extremely low-profile and sit flush-mount to the ceiling. 

Supplied with 20 metres of 2-core 2x24 speaker cable. 

Key Features

  • Ideal for bathroom & kitchen music
  • 2x 5" Water-resistant in-ceiling speakers
  • Bluetooth connectivity & TV/Aux input
  • Works with Alexa & Google Home
  • Supplied with speaker cable

What's Included?

  • 1x Bluetooth Stereo Amplifier (IW30B)
  • 2x 5" Water-Resistant In-Ceiling Speakers (OD5-W8)
  • 1x 20m 2-core 2x24 speaker cable (807047-20m)

See SPECIFICATION tab for technical specs



  • Bluetooth version: 4.0
  • 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


  • Tweeter: 50mm (2")
  • Humidity max: 95%
  • IP rating: IP35
  • Dispersion angle: 140°
  • Temperature range: -20 - 85°C
  • Impedance: 4 ohms
  • Speaker size: 130mm (5")
  • Frequency response: 100Hz - 20kHz
  • Power max.: 80W
  • Power rms: 35W
  • Magnet weight: 184g (6.5 oz)
  • Cutout: 112mmØ
  • Mounting depth: 56mm
  • SPL @ 1W/1m: 86dB
  • Dimensions: 72.5 x 148mmØ
  • Weight: 565g

Adastra IW30B PDF File Download

Download the User Manual HERE