{"product_id":"zeroflex-zf40k-mono-competition-amplifier-40000-w-rms","title":"Zeroflex ZF40K Mono Competition Amplifier, 40,000 W RMS","description":"\u003cp\u003eA factory head unit has limited power, so speakers run out of clean volume early. The ZF40K is an amplifier that gives your subwoofer the power it needs for a serious SPL build.\u003c\/p\u003e\u003cp\u003eIt is a single channel competition amplifier. The maker, Zeroflex, lists 40,000 W RMS at 1 ohm, 25,500 W RMS at 2 ohm and 16,700 W RMS at 4 ohm. It is intended for high output bass systems and needs a correctly planned electrical system and professional fitting.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSingle channel SPL amplifier\u003c\/li\u003e\n\u003cli\u003eProtection circuitry for over voltage, under voltage, thermal and short conditions (maker description)\u003c\/li\u003e\n\u003cli\u003eAlloy heatsink and cooling (maker description)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRMS at 1 ohm: 1 channel x 40,000 W\u003c\/li\u003e\n\u003cli\u003eRMS at 2 ohm: 1 channel x 25,500 W\u003c\/li\u003e\n\u003cli\u003eRMS at 4 ohm: 1 channel x 16,700 W\u003c\/li\u003e\n\u003cli\u003eTHD: less than 1%\u003c\/li\u003e\n\u003cli\u003eFrequency response: 10 Hz to 10 kHz\u003c\/li\u003e\n\u003cli\u003eHigh pass filter: 15 Hz to 80 Hz\u003c\/li\u003e\n\u003cli\u003eLow pass filter: 40 Hz to 10 kHz\u003c\/li\u003e\n\u003cli\u003eBass boost: 12 dB\u003c\/li\u003e\n\u003cli\u003eDimensions (L x W x H): 1055 x 208 x 64 mm\u003c\/li\u003e\n\u003cli\u003ePart number: ZF40K\u003c\/li\u003e\n\u003cli\u003eSpec source: official Zeroflex product page, zeroflex.co.nz, 11 Nov 2026\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 ZF40K put out?\u003c\/h3\u003e\u003cp\u003eThe maker lists 40,000 W RMS at 1 ohm (1 channel), 25,500 W RMS at 2 ohm, and 16,700 W RMS at 4 ohm.\u003c\/p\u003e\u003ch3\u003eDo I need a wiring kit for the ZF40K?\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. This is a very high current SPL amplifier, so the electrical system and cable size have to be planned properly. Ask us and we will match a kit.\u003c\/p\u003e\u003ch3\u003eCan you fit the ZF40K 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 ZF40K?\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\u003ch3\u003eWhat are the dimensions of the ZF40K?\u003c\/h3\u003e\u003cp\u003eThe maker lists 1055 x 208 x 64 mm (length x width x height).\u003c\/p\u003e","brand":"Zeroflex","offers":[{"title":"Default Title","offer_id":67970395439197,"sku":"ZF40K","price":3300.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/ZF40K_2629f9f8-0bbe-4794-94de-56035b582cdf.jpg?v=1794377607","url":"https:\/\/frankiesautoelectrics.com.au\/products\/zeroflex-zf40k-mono-competition-amplifier-40000-w-rms","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}