擴大機 | 880 W 總功率 | 4 x 220 W @ 2Ω | D級
 
Audison SR 4.500 四聲道擴大機配備交叉頻段，將強大功率打包進超緊湊的設計中（130 W x 4 @ 4Ω）。在電子設計方面，Audison SR 4.500 的每個美學和功能細節都經過精心處理，採用圓角擠壓鋁材製成，方便在狹窄空間內安裝。由於擴大機兩側設有寬大的散熱片，因此不需要內部冷卻風扇，避免了風扇造成的噪音和灰塵積累。延續傳統，SR 擴大機憑藉其完整的過濾器區段，適用於各種音響系統配置，展現出其多功能特性。控制按鈕位於鋁質面板的頂部，安裝後仍能輕鬆操作。若系統中包含 Audison bit 處理器，過濾器區段可完全排除。
 
Amplifier | 880 W total power | 4 x 220 W @ 2ohm | D-class
 
The Audison SR 4.500 4-channel amplifier with crossover features great power packed into ultra-compact dimensions (130 W x 4 @ 4Ω).As far as the electronic design is concerned, every aesthetic and functional detail of the Audison SR 4.500 has been taken care of, resulting in a compact amplifier made of extruded aluminum with rounded corners, which facilitates the installation of the product in narrow 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. In keeping with tradition, the SR amplifiers confirm their vocation for versatility by including on all models a complete filter section, suitable for any kind of audio system configuration. The controls, protected by a satin-finished aluminium panel, are located on the top panel of the amplifier, so that they can be easily reached from above, even after the product has been installed. When the system includes an Audison bit processor, the filter section can be totally excluded.