{"product_id":"audison-sr4-300-4-channel-compact-high-powered-amplifier-500w","title":"Audison SR4.300 - 4 Channel Compact High Powered Amplifier 500W","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12pt;\"\u003eAudison SR 4.300 500W Class D 4 Channel Car Speaker Amplifier\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eHIGH POWER IN A COMPACT SIZE\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eWe are proud to present the renovated SR 4.300 (85 W x 4 @ 4Ω) introduced back in 1988 and constantly updated with the best technologies available.\u003c\/p\u003e \u003cp\u003eThe Audison design team, headquartered in the Potenza Picena (Italy), spent a long time planning and perfecting the new SR line, taking full advantage of the features that the most recent amplification devices available today are equipped with. After numerous listening tests in a double-blind configuration on a significant sample of professionals and enthusiasts, the R\u0026amp;D team decided to adopt a new D-class technology called ADT (Audison D-Class Technology) for the whole range, which made it possible to reduce the size of the amplifiers considerably, totally preserving the audio performance that characterizes each Audison project.\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eEDGELESS DESIGN\u003c\/strong\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eAs for the electronics design, the Audison style center has taken care of every aesthetic and functional detail, obtaining a compact amplifier made of extruded aluminium with rounded corners that ease the installation of the product in narrow spaces. Thanks to the generous heat sinks on the two short sides of the amplifiers, internal cooling fans are not necessary, which often cause of noise and dust accumulation.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eCOMPLETE CONTROLS ON UPPER PANEL\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eAs per tradition, the 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-finish aluminium panel, are located on the amplifier upper panel, to 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.\u003c\/p\u003e \u003cp\u003eThanks to the integration of Audison USS technology (Universal Speakers Simulator) in the high-level inputs, the SR amplifiers can also be appropriately connected to OEM sources featuring the “speaker load detection” function that monitor the presence of a low-impedance load to enable audio outputs.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eLIMITLESS CONNECTIVITY\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003eAll models are equipped with high-level balanced inputs for connection to the OEM Head Unit speakers output and low RCA level for the after-market ones. When the high-level input is used, the ART function (Automatic Remote Turn-On \/ Off) can be enabled to control the switching on of the amplifiers with the head unit switch-on button.\u003c\/p\u003e \u003cp\u003eIn addition, there is a remote IN \/ OUT socket to allow the control of multiple cascaded amplifiers switches on when required.\u003c\/p\u003e \u003cp\u003eThe SR 1.500, SR 4.300 and 4.500 models recreate the PRE-OUT signal by using the Speaker-IN input to interface it with OEM sources only equipped with amplified outputs, allowing the system expansion.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003ePOWER SUPPLY\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePower supply voltage \/ fuse 11 ÷ 15 VDC \/ 1 x 30A\u003c\/li\u003e \u003cli\u003eOperating power supply voltage 6.5V ÷17 VDC\u003c\/li\u003e \u003cli\u003eIdling current 1.6 A\u003c\/li\u003e \u003cli\u003eIdling current when off 0.03 mA\u003c\/li\u003e \u003cli\u003eConsumption @ 14.4 VDC, 2Ω, Max Musical\u003c\/li\u003e \u003cli\u003ePower 25 A\u003c\/li\u003e \u003cli\u003eRemote IN 6.5 ÷ 15 VDC (1 mA)\u003c\/li\u003e \u003cli\u003eRemote OUT 6.5 ÷ 15 VDC (150 mA)\u003c\/li\u003e \u003cli\u003eART - Automatic Remote Turn on\/off from\u003c\/li\u003e \u003cli\u003eOUTPUT BTL speakers (Selectable) 1.5 ÷ 7 VDC\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eAMPLIFIER STAGE\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eDistortion - THD @ 1 kHz, 4Ω, 70% Rated Power 0.03%\u003c\/li\u003e \u003cli\u003eDamping factor @ 1 kHz, 4Ω, 2 VRMS 150\u003c\/li\u003e \u003cli\u003eBandwidth @ -1.5 dB 10Hz ÷ 35 kHz\u003c\/li\u003e \u003cli\u003eS\/N ratio (A weighted @ 1 V Input) 100 dBA\u003c\/li\u003e \u003cli\u003ePre-In sensitivity 0.2 ÷ 5 VRMS\u003c\/li\u003e \u003cli\u003eSpeaker-In sensitivity 0.8 ÷ 20 VRMS\u003c\/li\u003e \u003cli\u003eMinimum load impedance\u003c\/li\u003e \u003cli\u003e@4Ch: 2Ω\u003c\/li\u003e \u003cli\u003e@ 3Ch: 2Ω + 2Ω + 4Ω\u003c\/li\u003e \u003cli\u003e@ 2Ch: 4Ω\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eOUTPUT POWER (RMS) @14.4 VDC, 1% THD:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e4Ch 85 W x 4 (4Ω)\u003c\/li\u003e \u003cli\u003e4Ch 130 W x 4 (2Ω)\u003c\/li\u003e \u003cli\u003e3Ch 80 W x 2 (4Ω) + 250 W x 1 (4Ω)\u003c\/li\u003e \u003cli\u003e3Ch 130W x 2 (2Ω) + 260 W x 1 (4Ω)\u003c\/li\u003e \u003cli\u003e2Ch 250 W x 2 (4Ω)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eINPUTS \/ OUTPUTS\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eInputs Pre-In \/ Speaker-In\u003c\/li\u003e \u003cli\u003eOutputs PRE OUT full range (Input A)\u003c\/li\u003e \u003cli\u003eFront Ch Filters: \u003cul\u003e \u003cli\u003eFull\u003c\/li\u003e \u003cli\u003eHi-pass: 50 ÷ 3.2k Hz @ 12 dB\/Oct.\u003c\/li\u003e \u003cli\u003eLo-pass: 50 ÷ 3.2k Hz @ 12 dB\/Oct.\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eRear Ch Filters: \u003cul\u003e \u003cli\u003eFull\u003c\/li\u003e \u003cli\u003eHi-pass: 50 ÷ 3.2k Hz @ 12 dB\/Oct.\u003c\/li\u003e \u003cli\u003eLo-pass: 50 ÷ 3.2k Hz @ 12 dB\/Oct.\u003c\/li\u003e \u003c\/ul\u003e \u003c\/li\u003e \u003cli\u003eA\/B Ch MONO IN (on\/off) Yes\u003c\/li\u003e \u003cli\u003eBass Boost 50Hz (adjustable) B Ch (0 ÷12) dB\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eSIZE\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMax size W x H x D (mm\/inch) 190 x 155 x 47,5 \/ 7.48 x 6.10 x 1.87\u003c\/li\u003e \u003cli\u003eWeight (kg\/lbs) 1,56 \/ 3.44\u003c\/li\u003e \u003c\/ul\u003e","brand":"Audison","offers":[{"title":"Default Title","offer_id":52760962760970,"sku":"SR4.300","price":349.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0930\/4578\/4842\/files\/audison-sr-4300-2.jpg?v=1774288777","url":"https:\/\/audiovisualworld.co.uk\/products\/audison-sr4-300-4-channel-compact-high-powered-amplifier-500w","provider":"Audio Visual World","version":"1.0","type":"link"}