Adastra WA-225 Wall-Mount 2 x 25W Amplifier with Bluetooth, USB/SD & FM Tuner

The Adastra WA-225 is a compact Wall-Mount 2 x 25W Digital Amplifier built into a single gang wall plate with Bluetooth, USB/MicroSD player, FM tuner, 2.8" colour TFT display, alarm clock, playback scheduler and IR remote control — a complete, self-contained background music solution for home and commercial wall or ceiling speaker installations.

The Adastra WA-225 is a remarkably compact yet fully featured wall-mount amplifier that puts a complete background music control system into a single gang wall plate — powered directly from a standard 100–250V mains supply and installed into a partition wall or standard 47mm back box.

With a built-in 2 x 25W digital amplifier, Bluetooth receiver, USB/MicroSD audio player, FM tuner and aux input all accessible from a wipe-clean touch control panel with a full colour 2.8" TFT display, the WA-225 provides everything needed for background music in a home, office, retail space, bar, restaurant or any other commercial environment where a discreet, minimal and fully functional audio solution is required. A 50mm back box and IR remote control handset are included in the box for a complete, ready-to-install package.

Multiple Audio Sources

The WA-225 supports four audio modes — Bluetooth receiver for wireless streaming from smartphones and tablets, USB/MicroSD player for MP3, WMA, WAV, AAC and APE file playback from media up to 32GB, FM tuner for radio reception and aux input via 3.5mm jack for connection of any additional audio device. Bluetooth has a programmable name and pairing code to avoid confusion in multi-room installations where multiple WA-225 units are deployed throughout a building.

Scheduler, Alarm Clock & Doorbell

Beyond basic audio playback, the WA-225 includes a date and time display with alarm clock functionality and a playback scheduler for automated background music — allowing music to start and stop automatically at preset times without manual intervention. A trigger contact provides a built-in doorbell function for additional practical utility in commercial premises.

Flexible Speaker & Installation Connectivity

Left and right speaker outputs support 2 or 4 speakers at 4 or 8 Ohm impedance, with all connections — including mains power, FM antenna, aux input and speaker outputs — provided on screw terminal Euroblock connectors at the rear for clean, professional installation wiring. The slim 37mm mounting depth (without back box) allows installation into most standard partition walls, and the wipe-clean touch panel surface is practical for high-traffic commercial environments.

Adastra WA-225 Key Features:

• 2 x 25W Digital Amplifier (4 Ohm): Compact wall-plate amplifier for 2 or 4 background music speakers.
• Single Gang Wall Plate Design: Installed into a standard partition wall or 47mm back box — supplied with 50mm ABS back box.
• Bluetooth Receiver: Wireless streaming with programmable name and pairing code for multi-room installations.
• USB/MicroSD Audio Player: MP3, WMA, WAV, AAC and APE playback from media up to 32GB.
• FM Tuner: Built-in FM radio reception.
• 3.5mm Aux Input: Connect any additional audio device.
• 2.8" Colour TFT Display (58 x 43mm): Clear, full-colour display for system status and menu navigation.
• Wipe-Clean Touch Control Panel: Practical for high-traffic commercial environments.
• IR Remote Control Included: Convenient operation without touching the wall panel.
• Playback Scheduler: Automated background music start and stop at preset times.
• Alarm Clock with Date & Time Display: Built-in clock functionality for additional utility.
• Doorbell Trigger Contact: Built-in doorbell function for commercial premises.
• Euroblock Screw Terminal Connections: Clean, professional installation wiring throughout.
• 100–250V Mains Powered: Direct mains connection — no external power supply required.
• 37mm Mounting Depth: Fits most standard partition walls without back box.
• 98dB SNR / 0.03% THD: Clean, high-quality audio performance.
• Ideal for Home & Commercial Background Music: Offices, retail, bars, restaurants and hospitality environments.

• Output Power (@ 4 Ohm): 2 x 25W
• Output Power (@ 8 Ohm): 2 x 15W
• Audio Modes: Bluetooth, USB/MicroSD player, FM tuner, Aux in
• Audio Formats: MP3, WMA, WAV, AAC, APE
• USB/SD Capacity: Up to 32GB (FAT32)
• Bluetooth Range: Up to 10m
• Inputs: MicroSD slot, USB-A port, 3.5mm aux jack
• Terminals: L+N power, doorbell, aux L+R in/out, speaker out L+R, GND, FM antenna
• Display: 2.8" colour TFT (58 x 43mm)
• THD: 0.03% (1W/1m)
• SNR: 98dB
• Frequency Response: 20Hz – 20kHz (±2dB)
• Power Supply: 100–250V AC, 50/60Hz (screw terminals)
• Mounting Depth: 37mm (without back box)
• Dimensions (including back box): 86 x 86 x 50mm
• Weight (including back box): 224g

What's in the Box

• 1 x WA-225 Wall Amplifier
• 1 x ABS Back Box (86 x 86 x 50mm)
• 1 x Metal Mounting Plate
• 1 x IR Remote Control Handset
• 1 x Mini Terminal Screwdriver

Digital Downloads (buying software)

All software marked as "serial download" or "digital download" will be delivered via email within normal office hours.

Simply add the software to the basket and at the delivery stage in the checkout please select "Digital Download - Software by email" as your delivery method

Delivery Charges (Main Products)

The cutoff for same-day dispatch is 3:30pm but can vary at busier times such as Christmas.

All orders over £99.00 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 £6.99

(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 £99.00 will start as low as £2.99 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
Music PC Systems - Please allow 5-7 Working Days build time (UK) 7-14 (Rest of the World)

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 Inta Audio is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Inta Audio of such within three working days from the date of delivery.

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 369898 (or e-mail cs@inta-audio.com). 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 28 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 Inta Audio.

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 369898 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 Inta Audio to process the return quickly.

If you have any questions about our Returns policy please telephone us on 02476 369898 or email us at cs@inta-audio.com.