4 x 50w RMS

Adastra A14 Dual Stereo Mixer-Amplifier with Bluetooth

SKU: 953.414

£145.32 + VAT    £174.38 incl. VAT

4 x 50w into 8Ω low impedance stereo 2-zone digital amplifier with Bluetooth & media player

In stock

Radio FM
USB Type A
Low Impedance 4 Ohms
Low Impedance 8 Ohms



Adastra A14 dual stereo mixer-amplifier with Bluetooth and media player

Comprehensive 1U PA amplifier with 2 independent stereo zones and a global microphone input. Each zone has an independent audio player module which can select between USB / microSD mp3 player, FM tuner, Bluetooth receiver, 2 stereo line inputs (rear panel RCA) and another line input on the front panel (3.5mm). Playback can be controlled from the front panel or by the supplied I.R. remote control handsets. In addition, each player has an Aux 4 setting allowing it to connect to the other player module, meaning either one of these players can be used for both zones if needed. Mic inputs 1 and 2 are live to both output zones at all times. 2 pairs of speaker connections on the rear panel are connected using removable Euroblock screw terminals, which can drive up to 2 x 8 Ohm speakers on each of the 4 channels. The housing is 1U 19″ rack-mountable and is supplied with front and rear brackets, which may be rotated for mounting flat against a wall or under a counter top. Overall, a complete solution for completely independent background music, audio visual and voice announcements in venues with 2 separate areas.

  • 2 completely independent or linkable USB / microSD mp3 audio media players
  • Inbuilt FM radio tuners
  • Dual Bluetooth wireless receivers
  • Microphone input for voice announcements to both zones
  • Dual 2 x 100W class-D power amplifiers
  • Power supply 230Vac, 50Hz (IEC)
  • Output power : 4 Ohms 2 x 2 x 100w RMS
  • Output power : 8 Ohms 2 x 2 x 50w RMS
  • Inputs : mic 6.3mm (front and rear panel in parallel)
  • Inputs : aux Aux 1-3 (L+R RCA rear panel) + Aux 3 also 3.5mm on front panel
  • Audio source Dual internal USB/microSD player / FM tuner / Bluetooth receiver
  • Antenna connection F-type (FM tuner)
  • Dimensions 482 x 285 x 44mm (1U)
  • Weight 2.933kg

See the ‘User Manuals’ tab on the left of this page – as manufacturers are making instruction sheets and user manuals available for download only and your purchase may not include a printed version.

Additional information

Output (RMS)



4Ω, 8Ω

Media Playback

Bluetooth, FM Radio, Micro SD Card Slot, USB (Type A) Slot


3.5mm Jack, 6.3mm Jack, RCA Phono, Screw Terminals, USB (Type A)







Adastra was founded in 1949 and has earned a reputation for high quality public address sound products. Meeting the needs of the commercial PA sector for over 60 years the Adastra name is known for quality and value. Adastra is the choice for 100v line PA sound, zone paging PA and induction loop equipment. The Adastra range includes mixer & slave amplifiers, ceiling, cabinet & horn loudspeakers, desk paging & handheld microphones, equipment racks, cables, stands and accessories. Our professional and commercial sound products, wireless microphones and induction loops are carefully chosen for sale on our website by Sound Services – not everything from every manufacturer is there. Based on feedback, customer reviews and our own observations we list items that are popular, reliable and good value for money. If there are products not shown on our website that you feel we may be able to quote for, please just ask!

User Manuals

What's in the Box?

  • A14 amplifier
  • 2 x I.R. remote control handsets
  • IEC mains power lead


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