Audison SR 4.500 900W 4-channel Class-D amplifier with bass boost

HIGH POWER IN A COMPACT SIZE

We are proud to present the revised SR 4.500 (130 W x 4 @ 4Ω) which was introduced in 1988 and is constantly updated with the best technologies.

The Audison design team, headquartered in Potenza Picena (Italy), planned and perfected the new SR line for a long time, making use of the functions with which today's amplifiers are equipped. After numerous listening tests in a double blind configuration with a large number of professionals and audio enthusiasts, the research and development team decided to introduce a new D-class technology called ADT (Audison D-Class Technology) for the entire product range , which made it possible to significantly reduce the size of the amplifiers while maintaining the audio performance that distinguishes every Audison project.

DESIGN WITHOUT CORNERS AND EDGES

When designing, the Audison Style Center paid attention to every aesthetic and functional detail and created a compact amplifier made of extruded aluminum with rounded corners, which makes it easier to install the product in tight spaces. Thanks to the generous heat sinks on the two short sides of the amplifier, no internal cooling fans are required, which often lead to noise and dust deposits.

Easily accessible controls

As is customary in tradition, the SR amplifiers confirm their vocation as versatile by including a complete filter section in all models, which is suitable for any type of car hi-fi configuration. The controls, which are protected by a satin aluminum plate, are located on the top plate of the amplifier and are easily accessible from above even after the product has been installed. If the system includes an Audison bit processor, the filter section can be completely excluded.

Thanks to the integration of Audison USS technology (Universal Speakers Simulator) in the high-level inputs, the SR amplifiers can also be connected to OEM sources with the "Speaker Load Detection" function, which monitors the presence of a low-impedance load and Activate audio outputs.

UNLIMITED CONNECTION

All models are equipped with high-level inputs for connection to the output of the OEM head unit speakers and with a low RCA level for the after-market speakers. When the high-level input is used, the ART function (Automatic Remote Turn-On / Off) can be activated to control the switching on of the amplifiers with the On button of the main unit. There is also a remote IN / OUT socket, via which the control of several amplifiers can be switched on if required.

The SR 1,500, SR 4,300 and 4,500 models restore the PRE-OUT signal by using the Speaker-IN input to connect it to OEM sources that are only equipped with amplified outputs, which enables system expansion .