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Adastra DM-8 Digital Automated Messaging Unit for scheduled audio playback

by Adastra
Sold out
£139.00 (inc. VAT)
SKU 953.053

Automated announcement unit for scheduling pre-recorded messages, shift changes & music to certain times of the day.

This automated announcement system from Adastra can play up to 99 recorded messages all of which can be set to play at certain times of the day (set by 24 hour time and day(s) of the week).

This is perfect for warehouses & factories that need to relay shift changes and general announcements as well as schools & colleges that need to notify staff/pupils of break times and general news. 

It also has a microphone input for live announcements, which will override the SD card playback. This means an important public address announcement can be made real time. 

This digital messaging system comes with a removable SD card which all of your recorded messages are stored on. All messages can be recorded directly onto the card via the mic/line input or on a PC/Mac computer.

The Adastra DM-8 is also 19" rack-mountable so it can be positioned in a server cupboard.

Key Features

  • Up to 99 audio tracks stored on SD card
  • Up to 99 schedules programmable for playback
  • Repeat function for looped playback
  • Mic/Line input for recording or live announcements
  • 19" rack-mountable 1U

    If you require any assistance with any of our products then call us on 02476 369890 and one of our specialists will be happy to help. Or you can use our Request a call back form.  

    See SPECIFICATION tab for technical specs

    Adastra DM-8 Specifications

    • Power supply: 100-240Vac, 50/60Hz or 24Vdc
    • Fuse: T1AL 250V
    • Battery: CR2016 button cell (internal clock)
    • Inputs: Paging mic/line (XLR or terminals), BGM (RCA)
    • Output: Mono balanced terminal or unbalanced RCA
    • Audio source: Internal SD card player
    • Time setting: 99 programmable schedules - 24 hour + day(s) setting
    • Mic/line channel controls: Mic/Line level, Phantom power on/off
    • Phantom power: +20V
    • Input impedance: 2.2k Ohms (mic/line)
    • Controls: Page/Rec, Mic, Clock Set, Schedule, Message 1-8, Output, Power on/off
    • Trigger: Message 1-8, Stop & Ground contacts
    • SD card requirements: 4-32GB FAT32 (full size or with adaptor)
    • Dimensions: 483 x 150 x 44mm
    • Weight: 1.65kg

          Adastra DM-8 PDF File Download


          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. 


          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