Check the listing for details. Adastra IWA415B 4x15W In-Wall Stereo Amplifier with Bluetooth. Condition: New. Listed at 62.53 USD. eBay Store Design by Visualsoft Home About Us Our Feedback Shop Categories Studio Equipment Music Software Guitar FX Pedals & Accessories Musical Instruments PA & Live Sound 100V Amplifiers & Speakers Stage Lighting & Effects Stands, Brackets & Supports Home Audio Indoor Heating, Cooling & Air Home Furniture & DIY Vehicle Accessories Health Outdoor Garden & Patio Pet Care 100v Line Amps & Speakers B-Stock / Clearance Cables and Connectors Computer Music Electricals Recording Other Adastra IWA415B 4x15W In-Wall Stereo Amplifier with Bluetooth From £47.25 RRP £54.99 | You Save £7.74 Bluetooth connectivity Optical & aux input Class-D amplification Onboard volume control Powered directly from mains Ask a Question Description The new Adastra IWA-415B is a 4 x 15W in-wall stereo Bluetooth amplifier designed for a wide range of commercial and home audio applications. Featuring Bluetooth pairing, the IWA amplifiers offer seamless music streaming wirelessly from any smart device as well as an aux & optical digital input for directly connecting a TV, soundbar or external media source. Also situated on the IWA amps is an aux out which enables you to connect to an active subwoofer - bringing those tracks to life! Alternatively, this can be used to daisy-chain multiple amplifiers together for larger audio installations. The Bluetooth pairing can also be disabled meaning one amp will be the master, this is also great for commercial environments that want to stop members of the public from being able to connect to the system. In addition to this, the stereo amps have an onboard volume control that can be preset to the desired level. Thanks to Class-D amplification, the Adastra IWA amplifiers are extremely energy efficient and low in running costs. They also emit minimal heat dissipation which is ideal when mounted in a wall/ceiling cavity. Powered directly from the mains eliminating interference such as buzz/hum which is common with amps that are powered via a 12Vdc power supply. Home About Us Our Feedback Contact Us eBay Store Design by Visualsoft