Adastra A8 Quad Stereo Amplifier 8 x 200W

Adastra  |  SKU: 953.408UK
£359.99 £399.00


This multi-zone amplifier has two mic inputs and a switchable stereo input for each zone.

Its media player section offers MP3 audio playback from USB drives and/or SD cards, plus a Bluetooth receiver and FM radio tuner.

Each output zone has a rotary switch which selects the stereo playback between two rear stereo inputs, a front 3.5mm stereo input, or the built-in media player.

The mic inputs 1 and 2 are constantly active to all output zones.

Connecting to speakers via Euroblock terminals delivers up to 200W per output at 4 Ohms, making this unit ideal for installations requiring superior stereo sound in multiple spaces.


  • MULTIPLE INPUTS: The A8's two microphone inputs and four selectable stereo sources per output channel provide powerful, versatile sound options, including an internal media player. Additionally, the amplifier offers access to FM radio via an external aerial connection and Bluetooth connectivity.

  • EASILY CONTROL: A smartphone, tablet, or MP3 player can be connected to the 3.5mm Aux jack on the front panel (4). Volume of this stereo input is adjusted by the AUX volume control. The volume of the Aux jack can be adjusted precisely so you always get the optimal sound performance.

  • ADJUST TO SUIT YOUR NEEDS: 8 x 200W output power @ 4 Ohms, Media player with USB/SD playback, Available with 3 or 4 independent stereo outputs This allows for a powerful and reliable sound system with optimal audio performance for any venue. With adjustable knobs for bass, treble, and volume, you'll be able to customize your sound to perfection.

Key Features

  • Zones
    Multi Zone
  • Placement
  • Music Sources
    Bluetooth, FM Radio
  • Inputs
    3.5mm AUX, RCA, Microphone, USB
  • Outputs
    RCA Line Out
  • Warranty
    1 Year


    • Power Supply - 230Vac, 50Hz (IEC)
    • Fuse - F5A, 250V
    • Amplifier : construction - Class D
    • Frequency Response - 20Hz - 20kHz ±0.5dB
    • Microphone Inputs - 2 x 6.3mm jack (mono)
    • Line Inputs - Line 1: L+R (6.3mm jack/RCA), Line 2: L+R (RCA)
    • Input Sensitivity : line - 0.775Vrms
    • Auxiliary Input - 3.5mm stereo jack
    • Input Sensitivity : aux - 0.480Vrms
    • Input Impedance - 20k Ohms (balanced), 10k Ohms (unbalanced)
    • Audio Source: USB/SD mp3 playback, FM tuner, B/T receiver
    • B/T Wireless Version: 2.3
    • Input Controls: Aux, Media, Line1, Line2, Mic1, Mic2, Talkover
    • Antenna Connection: F type (FM tuner)
    • Dynamic Range: THD +N
    • Protection: Thermal, over-current, over-voltage, short-circuit
    • Dimensions: 482 x 300 x 88mm

What You Get

    • M-series multi-stereo amplifier
    • I.R. remote control (media player)
    • IEC power lead(s)


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Authorised Dealer

K&B Audio are authorised dealers for Adastra. All sales come with a 1 Year manufacturers warranty and full technical support.

Adastra A8 Quad Stereo Amplifier 8 x 200W - K&B Audio

Adastra A8 Quad Stereo Amplifier 8 x 200W

£359.99 £399.00









Drive Type




Noise Cancelling



Multi Zone

Music Sources

Bluetooth, FM Radio


3.5mm AUX, RCA, Microphone, USB


RCA Line Out

TV Connection


Smart Features


Cut-Out Diameter


Mounting Depth


Power Handling




Driver Size







1 Year
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