Complete stereo system

BGM-50 Bluetooth stereo background music system


25 + 25 watt Bluetooth stereo background music system with mic inputs




BGM-50 25 + 25 watt Bluetooth stereo background music system

Complete installation set comprising a KAD-2BT stereo amplifier with inbuilt media player and Bluetooth® receiver, one or two pairs of white or black cabinet or white ceiling speakers and 10m speaker cable. Provides a full background music system for discreet installation in the home or commercial premises such as doctor reception, staff room and MOT viewing areas


  • Bluetooth connectivity
  • 2 or 4 ceiling or cabinet speakers – see options
  • Inbuilt USB/SD media player with FM tuner
  • Power supply 230Vac, 50/60Hz
  • Output power : max. 2 x 55W, RMS 2 x 25W
  • Impedance: 4 Ohms per channel minimum
  • Ceiling Speakers: Cutout 165-170mmØ (each speaker), Mounting depth 38mm amplifier, 65mm speakers – see options
  • Cabinet Speakers: Woofer: 130mmØ (5.25″), Tweeter: 25mmØ (1″), Dimension: (each) 180 x 240 x 180mm, Weight: (each) 2kg – see options
  • THD: <10% @1kHz 1W
  • SNR: >81dB
  • Frequency response: 140Hz – 16kHz
  • Dimensions: 200 x 200 x 65mm (amplifier), 93 x 227mmØ (each ceiling speaker), 180 x 240 x 1820mm (each cabinet speaker)
  • Weight 1.6kg (amplifier), 1.1kg (each ceiling speaker), 2kg (each cabinet speaker

Cabinet Speakers

  • Black or white – see options
  • Woofer: 100mmØ (4″)
  • Tweeter: 25mmØ (1″) balanced dome tweeter
  • Frequency response: 110Hz – 20kHz
  • Power rms: 35W
  • Power max.: 70W
  • Sensitivity: 88dB
  • Dimensions (each): 150 x 200 x 150mm
  • Weight: 1.25kg
  • Weight per set: 2.5kg

Ceiling Speakers

  • White
  • Supplied singularly
  • 2-way easy fit ceiling speakers
  • Polypropylene woofer with rubber surround and Ferrofluid cooled silk dome tweeter
  • Adjustable directional tweeter
  • Spring-loaded terminal connections
  • Fitted with “dog-ear” mounts
  • Woofer: 165mm (6.5″)
  • Tweeter: 18mm (0.7″)
  • Frequency response: 60Hz – 20kHz
  • Impedance: 8 ohms
  • Power max: 100W
  • Power rms: 50W
  • Sensitivity @ 1W/1m: 85dB (±2dB)
  • Cutout: 193mmØ
  • Mounting depth: 79mm
  • Dimensions: 93 x 227mmØ
  • Weight: 1.1kg

Speaker cable assembly and installation of these systems require some DIY assembly skills – you should only require wire cutters and screwdrivers together with speaker and amplifier fixings etc.

System includes

  • 25w per channel stereo amplifier with media player and Bluetooth
  • 2 or 4 x white or black cabinet or white ceiling speakers
  • 30m speaker lead
  • User Manual

Constant development means that illustrations are only representative and items supplied may be newer or improved models

Not quite right for you?
Ask us to quote a custom PA sound system



Founded in 1949, Adastra has earned a reputation for delivering high quality public address systems.

Adastra strives to provide complete and versatile solutions for commercial installations, with specialist products provided for zoning, noise pollution control, portable public address and induction loop systems. A comprehensive range of associated products are also available, including speaker brackets, rack cabinets and microphones. These products have been created with the user in mind, offering a flexible and modular approach to installation sound systems. For over 60 years it has serviced the needs of the public address sector as a fully established brand name, celebrated for quality and excellence, and will continue to develop and diversify its range in order to remain at the forefront of the industry.


Launched in 2009, QTX is a professional lighting brand for both commercial organisations and the domestic market. Ideal for clubs, bars, schools and theatres, its comprehensive product portfolio covers everything the market demands - from domestic party lighting to cutting-edge effects for installation use. The QTX brand also includes a range of audio equipment ideal for entry-level and compact set-ups. The QTX range also extends into non-light effects such as mirror-balls, smoke, snow and bubble machines, as well as an excess of stands, brackets, lamps and DMX controllers.

Additional information


Two white cabinet speakers, Two black cabinet Speakers, Four white cabinet speakers, Four black cabinet speakers, Two white ceiling speakers, Four white ceiling speakers


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