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Adastra Paging Announcement & Background Music System - 16x White Ceiling Speakers

by Adastra
£809.00 (inc. VAT)

This 16 speaker audio system is perfect for any office or call centre with multiple floors/rooms, looking to convey announcements and background music throughout the building.

This pre-configured kit enables your receptionist/call desk to make an announcement into certain areas or throughout your whole building. 

Examples of this could be:

  • Shift changes in the warehouse
  • Staff meetings in the office
  • Order cancellations/updates in the picking area
  • Emergency evacuation throughout the whole building

The Adastra RM244V Mixer Amplifier has multiple line level inputs as well as Bluetooth connectivity for streaming music from smartphones, tablets, laptops, TV's and external media players etc. 

Background music will play through all zones/areas which will be muted upon an announcement. If you have a quiet area then music can be turned off and only announcements will sound. 

The Adastra CS4 is a desktop, push-to-talk paging microphone that is extremely easy to use. It has 5 selectable switches (Zones 1-4 & All) which allows you to page into certain areas of your building.

Located on the back of the microphone is an Aux input, mic volume and a chime. The AUX input is for connecting a smartphone or MP3 player to play music/pre-recorded messages. The signal will be passed down the CAT5 cable and outputted out of the amplifier. This provides you with a local music source.

Up to 2x CS4 paging microphones can be connected and used in different areas of your building. 

This paging announcement and music system has +24V Mute Contacts for the connection of a fire alarm. When the alarm sounds the music will be muted ensuring a safe evacuation. 

Take a look at what's included below... 

Adastra CS4 Call Station Microphone for RM244V Amplifier

The amplifier and paging microphone included in the kit allow for announcements to be broadcast over each zone either individually or all zones at the same time for building-wide information. Pressing the page button mutes all audio playback and plays one of 8 selectable chimes, opening the microphone to the selected zone(s). Pressing the reset button mutes the microphone and resumes background music playback to all zones. This system offers 4-zone paging without the additional cost of using a quad amplifier.

Adastra RM244V 4-Zone Paging 100V Line Mixer Amplifier with Bluetooth

This versatile unit with Bluetooth connectivity, integral USB/SD audio player and integral FM tuner provides a comprehensive control centre for commercial sound installations.

The amplifier consists of 4x 60W zones (240W total power output), and be run and has a number of input sources. These include:

  • Bluetooth
  • 3x Mic/Line in (XLR / 1/4" Jack Combo)
  • 1x Phono Aux in
  • FM Antenna port for aerial

Main Features

  • 5 input channels - 120W power RMS

  • Bluetooth Receiver: (max 5 meters)

  • Integral USB + SD card inputs

  • FM Radio Tuner

  • External D.C. power option

  • 2U 19" rack mountable

Adastra CC6V 6.5" 100V Line Ceiling Speaker 

Our Adastra 6.25" Background Ceiling Speaker is a perfect installation for pubs, bars, restaurants and similar environments. Featuring a rotary switch on the back, the speaker can be tapped to 2.5, 5, 10, 15 or 20W via 100V Line as well as an 8ohm option. This is perfect as it can be altered to almost any environment depending on how many speakers you have and the load of your amplifier.

Main Features

  • Unique patented fitting mechanism
  • Easy fast fit method
  • High-quality chassis speaker
  • Slimline flush fitting grille
  • Low mounting depth
  • 6 wattage tappings
  • Concealed fitting
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    Adastra Premium Double Insulated 100V Line Speaker Cable - 100m

    Our 100V line cable by Adastra is a highly flexible speaker cable designed to be used with our 100V line amplifiers to connect up to 12 ceiling of wall mounted speakers.

    For internal use only.

    Adastra Premium Speaker Cable 100 metres

    See SPECIFICATION tab for technical specs


    Adastra RM244V 4-Zone Bluetooth Paging Amplifier Specifications

    • Power supply: 110/230Vac, 50/60Hz (IEC)
    • Output power rms: 240W (shared across 4 zones @ 100V)
    • Inputs: 3 x mic/line (jack/XLR), 1 x aux (RCA)
    • Input sensitivity: mic: -47dBV
    • Input impedance: mic: 5k Ohms
    • Input sensitivity: line: -10dBV
    • Input impedance: line: 1k Ohms
    • Paging station inputs: 2 x RJ45 (for optional RM-4B paging stations)
    • Line output: RCA
    • Sends: returns Pre out, amp in (RCA)
    • Channel controls: Ch1, Ch2, Ch3, Media and Aux volume
    • Output controls: Master volume, 4 x zone volumes & mutes
    • Equaliser: bass: 100Hz ±10dB
    • Equaliser: treble: 10kHz ±10dB
    • Phantom power: +20V (switchable inputs 1-3)
    • Audio source: USB/SD player, FM tuner and Bluetooth receiver
    • Bluetooth version: 2.0
    • Fire alarm contacts: 24V screw terminals
    • THD +N: <2% @ 1kHz (rated power)

    Adastra CS4 Call Station Microphone Specifications

    • Power supply: 24Vdc, 500mA from RJ45 or optional adaptor
    • Max. connection length: 100m (CAT5 cable) or 1km with optional 24Vdc adaptor
    • Capsule: Back electret condenser
    • Polar pattern: Cardioid
    • Controls: Aux/Mic/Chime levels, chime DIP switches, zone/page buttons
    • Connectors: RJ45 to amplifier, 24Vdc power jack, 3.5mm aux in
    • Frequency response: -3dB: 150Hz - 22kHz
    • Input level: Mic: -46dBV, Aux: -10dBV
    • Input impedance: Mic: 600 Ohms, Aux: 50k Ohms
    • Output level: 10dBV
    • Output impedance: balanced: 600 Ohms
    • S/N ratio: -60dB (all channels selected)
    • Interface: RS-485 control
    • Zone assign: 4 zones or all selectable
    • Dimensions: 460 x 140 x 115mm
    • Weight: 670g

      Adastra CC6V Commercial 6.5" 100V Ceiling Speaker Specifications

      • Version: CC6V 6.5"
      • Woofer: 165mmØ (6.5")
      • Tweeter: 38mmØ (1.5")
      • Frequency response: 70Hz - 20kHz
      • Power max.: 8 Ohms100W
      • Power rms: 8 Ohms50W
      • Power rms: 100V line20W
      • Cutout: 193mmØ
      • Mounting depth: 90mm
      • SPL: @ 1W/1m87dB (±2dB)
      • Tappings: 2.5, 5, 10, 15, 20W & 8 Ohms
      • Dimensions: 100 x 227mmØ
      • Weight: 1.25kg

       Double Insulated Speaker Cable Specifications

      • CSA2: x 0.75mm²
      • Strands: 2 x (12 x 0.2mmØ Cu + 12 x 0.2mmØ CCA)
      • Dimensions: 7mmØ
      • Current: 6A max.
      • Sheath: Black PVC
      • Length: 100m



      Adastra RM244V 4-Zone Mixer Amp PDF Downloads

      Download the User Manual HERE

      Adastra CS4 Call Station PDF Downloads

      Download the User Manual HERE

      Adastra CC6V 6.5" Ceiling Speaker PDF Downloads

      Download the User Manual HERE




      View all Adastra 100v Line products by Audio Volt

      For over 60 years Adastra has serviced the needs of the background audio market as a fully established brand name, celebrated for quality and excellence, and they continue to develop their range in order to remain at the forefront of the industry.

      Founded in 1949, Adastra has earned a great reputation for delivering high-quality background audio systems.

      Their products have been created with you the user in mind, offering a flexible and modular approach to installation of music background systems.

      With a comprehensive range of associated products also available, including speaker brackets, rack cabinets and microphones.  You can see why Audio Volt and Adastra are a match made in heaven. 



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      Delivery Charges

      Orders over £50.00 will be delivered FREE of charge via our Standard UK Delivery Service (2-3 days, UK Mainland).

      All orders below £50.00 will be sent at a rate of £3.99 per order (2-3 days, UK Mainland). 
      If you need your item faster we also offer a Premium Delivery, Next Day Tracked service at a cost of £9.95.

      Do you require your item before 12 pm? We offer a Premium Delivery, Next Day Tracked, Pre 12 service at a cost of £24.95.

      All delivery options will be available at the delivery stage in the checkout. 

      (Please ensure you add a mobile number to your order for tracking)

      European Delivery Charges

      Standard EU Shipping service £16.99  (Shipping to France, Germany, Ireland, Guernsey & Jersey - 2-4 days)


      Delivery Notes

      On delivery you must inspect the goods carefully for damage as Audio Volt is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Audio Volt of such within three working days from the date of delivery.

      60 Day Returns Policy

      We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:

      1. Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product’s return.

      2. Contact our Customer Services Team on 02476 369890 (or e-mail We will then send you an RMA number and returns form which needs to be completed and sent back with the returned item(s).

      3. (If the order has been unpacked) re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.

      4. When returning an item please obtain a ‘proof of postage’ receipt from the Courier.

      Returned items must be mailed within 10 days of when the RMA Number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.

      Please note: Our returns policy is quite straightforward but there are a number of conditions that we ask our customers to comply with before applying:

      1. It is your responsibility to request a return. If you don’t tell us you want to make a return, we don’t know. Once you do tell us, we will do everything we can to action it.

      2. If you have not requested a return within 60 days of receiving an order, we will have assumed that you are intending to keep it and we will not authorise a return.

      3. We always refund the payment according to how the original purchase was made and aim to do so within 72hrs of the return being received by us.

      4. Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.

      5. Delivery charges will not be refunded unless the delivered goods are faulty.

      6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Audio Volt.

      7. Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369890 if you believe your item has developed a fault.

      Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Audio Volt to process the return quickly.

      If you have any questions about our Returns policy please telephone us on 02476 369890 or email us at