{"product_id":"zapco-st-4x-sq-iii-4-ch-sound-q-class-ab-amplifier","title":"Zapco ST-4X-SQ-III 4 Channel Sound Quality Class AB Amplifier","description":"\u003cp\u003eA factory head unit has limited power, so speakers run out of clean volume early. The ST-4X-SQ-III is an amplifier that gives your speakers or subwoofer the power they need.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e4 Channel, Full Range, Class A\/B\u003c\/li\u003e\n\u003cli\u003eTiffany style Panel Mount RCA's\u003c\/li\u003e\n\u003cli\u003eRCA and Speaker Level Inputs\u003c\/li\u003e\n\u003cli\u003eVariable input gain control\u003c\/li\u003e\n\u003cli\u003eVariable electronic crossover\u003c\/li\u003e\n\u003cli\u003eAuto on with Speaker level inputs\u003c\/li\u003e\n\u003cli\u003eNew aluminium chassis\u003c\/li\u003e\n\u003cli\u003eTHD @ Rated Power \u0026lt; 0.1% THD\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSQ Upgrades: Op amps, Caps, Etc.\u003c\/li\u003e\n\u003cli\u003ePower @ 4 ohm: 4 x 70 watts\u003c\/li\u003e\n\u003cli\u003ePower @ 2 ohm: 4 x 95 watts\u003c\/li\u003e\n\u003cli\u003ePower Bridged @ 4 ohm: 2 x 190W RMS\u003c\/li\u003e\n\u003cli\u003eSignal to Noise Ratio \u0026gt; 95dB\u003c\/li\u003e\n\u003cli\u003eChannel Separation \u0026gt;60dB\u003c\/li\u003e\n\u003cli\u003eFrequency Response 15Hz to 30KHz ±1dB\u003c\/li\u003e\n\u003cli\u003eInput Sensitivity .25v to 5v\u003c\/li\u003e\n\u003cli\u003eDimensions in mm: 160(W) x 58(H) x 300(L) Overall: 160(W) x 58(H) x 325(L)\u003c\/li\u003e\n\u003cli\u003eCarton size (supplier figure): 40cm x 18cm x 7cm\u003c\/li\u003e\n\u003cli\u003ePart number: ST-4X-SQ-III\u003c\/li\u003e\n\u003cli\u003eShipping weight: 4 kg (supplier figure)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation\u003c\/h2\u003e\u003cp\u003eWe recommend fitting by a qualified car audio installer, with correctly rated power wiring and fusing. Our workshops at Albion Park Rail (02) 4257 2636 and South Nowra (02) 4423 5254 can quote on fitting.\u003c\/p\u003e\u003ch2\u003eWarranty\u003c\/h2\u003e\u003cp\u003eIt comes with the manufacturer's warranty through the Australian distributor, plus your rights under the Australian Consumer Law.\u003c\/p\u003e\u003ch2\u003eQuestions and answers\u003c\/h2\u003e\u003ch3\u003eHow much power does the ST-4X-SQ-III put out?\u003c\/h3\u003e\u003cp\u003eThe supplier lists Power @ 4 ohm: 4 x 70 watts.\u003c\/p\u003e\u003ch3\u003eHow efficient is the ST-4X-SQ-III?\u003c\/h3\u003e\u003cp\u003eThe supplier lists Input Sensitivity .25v to 5v. Higher sensitivity means more volume from the same power.\u003c\/p\u003e\u003ch3\u003eDo I need a wiring kit for the ST-4X-SQ-III?\u003c\/h3\u003e\u003cp\u003eYes. An amplifier needs power, earth, remote and signal wiring sized to its current draw, with a fuse near the battery. Ask us and we will match a kit.\u003c\/p\u003e\u003ch3\u003eCan you fit the ST-4X-SQ-III for me?\u003c\/h3\u003e\u003cp\u003eYes. Our Albion Park Rail and South Nowra workshops can quote on supply and fitting. Call (02) 4257 2636 or (02) 4423 5254.\u003c\/p\u003e\u003ch3\u003eWhat warranty comes with the ST-4X-SQ-III?\u003c\/h3\u003e\u003cp\u003eIt comes with the manufacturer's warranty through the Australian distributor, plus your rights under the Australian Consumer Law.\u003c\/p\u003e","brand":"Zapco","offers":[{"title":"Default Title","offer_id":43062581690461,"sku":"ST4XSQIII","price":599.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/ST-4X-SQ-III.webp?v=1786501485","url":"https:\/\/frankiesautoelectrics.com.au\/products\/zapco-st-4x-sq-iii-4-ch-sound-q-class-ab-amplifier","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}