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Compact Background Music System by Adastra - 4 Stylish Satellite Speakers & Digital Amplifier

by Adastra
£109.00 (inc. VAT)

Our compact background music system from Adastra is perfect for installs into cafes, shops and environments alike. Included in the kit is 4 x 2.5" stylish satellite speakers that output 6W of high-quality sound.

The compact design also means they don't stand out and blend in with your surroundings. The Adastra DM25 100v line mixer amp also includes a USB port, FM Radio and bluetooth for a wide range of playback options.

For easy installation we have included 50 meters of 100v line cable which can be increased if required. (speak to our sales team), The music system also allows easy connection of a CD or media player such as a iPod via the AUX input found at the rear of the unit

DM25 Mixer Amplifier

100V line mixer-amp with digital amplifier in a compact housing. Onboard audio player accepts USB media for digital audio or can be tuned to FM radio stations. 
  • Built-in USB/FM media player
  • Bluetooth connectivity
  • Suitable for 100V or 4-16 Ohm speakers

Adastra C25VW 2.5" 15W 100V Line Satellite Speakers

The LHM 0606/10 is a general purpose 6 W cost effective ceiling loudspeaker for clamp mounting into the ceiling and is suitable for both speech and music reproduction in shops, department stores, schools, offices, sports halls, hotels and restaurants. An optional fire dome is available. The speaker assembly consists of a single-piece, 6W dual cone loudspeaker and frame, with a 100 V, matching transformer mounted on the back. A circular metal grille is an integrated part of the front. The appearance and neutral white colour has been selected to be unobtrusive in virtually all interiors.

50 metres of Premium Speaker cable

100v Line 6A Cable included

50m drum of cable [804.380] Round profile 100v line cable. Flexible PVC sheath. BSI approved to BS6500, VDE approved.

System Configuration

4 x Speakers at 6W each (24watts)
For easy and quick installation the speaker has spring loaded terminals that simply click into place once your cable is inserted. A 160° dispersion angle enables you to strategically position your speaker in an area that provides equal sound throughout, instead of one area being louder than another. 
(Please be aware that if you have the speaker set to any of the 100V Line tappings, you MUST use the 100v Line cable included.  (you cannot use standard speaker cable!)
If you require any further assistance regarding our 100V Line range just contact us on 02476 369898 and one of our experts will be happy to help


See TECHNICAL SPECIFICATION tab for technical specs



DM25 Mixer Amp Specification

  • Power supply 230Vac, 50Hz (IEC)
  • Output power 25Wrms
  • Audio source USB player, FM tuner and Bluetooth receiver
  • Bluetooth version 2.1
  • Controls Treble, Bass, MP3, Aux, Mic
  • Microphone input 6.3mm jack (unbalanced)
  • Line input 2 x RCA (summed to mono)
  • Line output 2 x RCA
  • Speaker outputs COM, 100V and 4-16 Ohms (spring terminals)
  • Antenna connection Spring terminal
  • Dimensions 280 x 205 x 67mm
  • Weight 1.34kg

Adastra C25VW 2.5" 15W 100V Line Satellite Speakers

  • Driver: 65mmØ (2.5") reinforced paper cone
  • Frequency response: -10dB: 150Hz - 22kHz
  • Impedance: 8 Ohms
  • Power max: 8 Ohms: 30W
  • Power rms: 8 Ohms: 15W
  • Power rms: 100V line: 6W
  • Sensitivity @ 1W/1m: 88dB
  • Dimensions (each): 89 x 111 x 90mm
  • Weight (each): 465g

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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Our Delivery Charges

All orders over £50.00 will be delivered FREE via our standard delivery 2-3 days (UK Mainland)

If you need your item faster we also offer a Priority Tracked service at £3.99 (1-2 days) or Next Day Tracked £5.99

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

Saturday delivery is available when ordered before 2pm (Mon-Fri)

All orders below £50.00 will start as low as £1.99 depending upon weight and qty(s) (UK Mainland)

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

EU Delivery Times

Non UK Mainland Addresses please allow 1-3 Days 

Delivery To Belgium / France / Germany please allow 3-4 Days
French - Pour la Livraison s'il vous plaît permet en France 2-4 Jours
German - Für Lieferung Nach Deutschland erlaubt bitte 2-4 Tage

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