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KBSound Outdoor Stereo Speaker System with Premium In-Wall Bluetooth Amplifier

by KBSound
£149.00 (inc. VAT)

Create summer vibes with the KBSound Outdoor Stereo Speaker System with Premium In-Wall Bluetooth Amplifier. Super easy to install and perfect for those sunny family barbeques!

This complete outdoor Bluetooth music system features a KBSound in-wall amplifier paired with Adastra outdoor wall speakers.

This all-in-one Bluetooth music system includes a KBSound amplifier that features a low-frequency response going down to 30HZ. This means that it provides higher audio quality and a fuller sound that surpasses a vast majority of other in-wall amplifiers on the market.

Adastra BH5V Wall Speaker Key Features

  • IP44 rated weatherproof

  • 100V or 16 Ohm operation

  • 2-way speaker system with crossover network

  • High-quality sound reproduction

  • Protective cover for tapping switch and spring terminals

  • Pan & tilt mounting brackets included

      KBSound In-Wall Amplifier Key Features

      Bluetooth Connectivity - Stream audio wirelessly from smart devices

      Superb sound quality - Delivers a real stereo sound

      Low-frequency response amplifier - Offers higher-quality, fuller sound

      Easy to install - Supplied with instructions / no clutter

      What music can I play?

      The Outdoor Stereo Speaker System with Premium In-Wall Bluetooth Amplifier enables you to stream music from virtually any device without any cables needed! 

      Wirelessly stream music from your smartphone or tablet using the built-in Bluetooth receiver. Simply sync your device and you are ready to play your favourite tracks from apps such as Spotify, Deezer, Youtube, and more! 

      What's Included?

      • KBSound in-wall amplifier
      • 2 x Adastra BH5V Wall Speaker
      • 5 metres of speaker cable
      • Power cable
      • User manual
      If you require any further assistance regarding the KBSound range, then please contact us on 02476 369890 and one of our experts will be happy to help. Or use our Request a Call Back page for a FREE no obligation system design & consultation service.

        KBSound In-Wall Amplifier


        • Version V4.1
        • 10m distance

          Power Output:

          • 2 x 10W into 8 Ohms, 2 x 15W into 4 Ohms

          Input Sensitivity:

          • > -81dBm @ 0.1% BER

          Frequency Response: 

          • 30HZ~18KHZ (ISM Band)

          Power Supply:

          • 100-240 VAC, 50/60HZ


          • 159.5 x 54 x 35.5mm (6.3" x 2.1" x 1.4")

          Adastra BH5V Wall Speaker

          • Dispersion angle: 120°
          • IP rating: IP44
          • Colour: White/Black
          • LF driver: 135mmØ (5.25")
          • HF driver: 13mmØ (0.5")
          • Power handling : max: 100W
          • Power handling : rms: 50W
          • Sensitivity: 89dB
          • Frequency response: 80Hz - 20kHz
          • Tappings: 30W, 20W, 10W, 5W + 16 Ohms
          • Dimensions: 255 x 163 x 160mm
          • Weight: 2.45kg


            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 £6.99.

            Do you require your item before 12 pm? We offer a Premium Delivery, Next Day Tracked, Pre 12 service at a cost of £9.99.

            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 £22.99  (2-5 days)

            Shipping to: France, Germany, Belgium, Denmark, Sweden, Italy, Austria, Czechia, Hungary, Latvia, Lithuania, Luxembourg, Netherlands, Spain, Finland, Norway, Portugal, Slovakia


            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