Audison SR 4.300 4-channel amplifier with crossover and a large power enclosed in ultra compact dimensions (85W x 4 @ 4Ω) SR line, perfected by taking full advantage of the features that are equipped with the latest amplification devices. After extensive listening tests with professionals and enthusiasts, the Audison R&D team decided to adopt a new class D technology called ADT (Audison D-Class Technology) for this line of amplifiers, which has made it possible to reduce the size considerably while preserving the audio performance that characterizes every Audison project. With regard to the electronic design, every aesthetic and functional detail of the Audison SR 4.300 has been taken care of, obtaining a compact amplifier made of extruded aluminum with rounded corners that facilitates the installation of the product in confined spaces. Thanks to the generous heat sinks on the two short sides of the amplifiers, there is no need for internal cooling fans, which often cause noise and dust accumulation. As per tradition, SR amplifiers confirm their vocation for versatility by including on all models a complete filter section suitable for any type of audio system configuration. The controls, protected by a satin aluminum panel, are located on the top panel of the amplifier, making them easy to reach from above even after installation of the product. When the system includes an Audison bit processor, the filter section can be totally excluded.