{"product_id":"infinity-ref3004a-4-channel-car-amplifier","title":"Infinity REF3004A Reference 4 Channel Car Amplifier","description":"\u003ch2 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eFour channels. One serious upgrade.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Infinity REF3004A is a full-featured 4 channel car amplifier built for Aussie drivers who want real, usable power without filling the boot with gear. Delivering 75W RMS per channel at 4 ohms or 200W RMS per channel in 2-channel bridged mode this amplifier is versatile enough to run front and rear speakers today and transition to subwoofer duty when you're ready to add a dedicated sub amp down the track.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDesigned to slot into virtually any system, the REF3004A features both preamp and speaker-level inputs, so it works just as well in a factory-stereo setup as it does with an aftermarket headunit. Independent high and low-pass filters on the front and rear channels let you dial in your sound properly no guesswork, no compromise.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eKey Specifications\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e75W RMS x 4 channels at 4 ohms\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e100W RMS x 4 channels at 2 ohms\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e200W RMS x 2 channels at 4 ohms (bridged mode)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e4-ohm stable in bridged configuration\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVariable high-pass and low-pass filters: 32–320Hz, 12dB\/octave\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFilters operate independently on front and rear channels\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003ePreamp and speaker-level inputs included\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003ePreamp outputs for daisy-chaining additional amplifiers\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFuse rating: 30A x 2 (two 30A fuses)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRecommended power and ground lead: 8-gauge\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWiring and hardware not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eFeatures \u0026amp; Benefits\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eFlexible power modes:\u003c\/strong\u003e Run four speakers at 75W RMS each for a full-system build, or bridge to 2-channel at 200W RMS to power a pair of subwoofers. One amp, multiple system configurations.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eSpeaker-level inputs:\u003c\/strong\u003e Connects directly to factory headunit speaker outputs, making this ideal for Aussie utes, SUVs, and 4WDs that still have the OEM head unit in place.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eIndependent variable filters:\u003c\/strong\u003e Separate high and low-pass filters on front and rear channels (32–320Hz, 12dB\/octave) mean you're not locked into a one-size-fits-all crossover point. Dial in your door speakers and dash separately.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePreamp outputs:\u003c\/strong\u003e Future-proof your system. Add a dedicated sub amp or processor later without rewiring the whole install.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eCompact form factor:\u003c\/strong\u003e At 320 x 180mm footprint, it tucks neatly under a seat or into a tight boot space a practical win on wagons, dual-cabs, and touring builds.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDual 30A fuse protection:\u003c\/strong\u003e Built-in protection helps safeguard your system on corrugated outback roads and long touring runs where electrical stability matters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eTechnical Specs\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eChannels: 4 (stereo) \/ 2 (bridged)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRMS Power (4Ω, 4ch): 75W x 4\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRMS Power (2Ω, 4ch): 100W x 4\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRMS Power (4Ω, bridged): 200W x 2\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBridged impedance stability: 4 ohms minimum\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eHigh-pass filter range: 32–320Hz, 12dB\/octave\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eLow-pass filter range: 32–320Hz, 12dB\/octave\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFilter assignment: Independent front and rear channels\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eInputs: Preamp (RCA) + Speaker-level\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eOutputs: Preamp (RCA)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFuse: 30A x 2\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRecommended power\/ground wire gauge: 8 AWG (8-gauge)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDimensions (W x H x D): 320mm x 55.5mm x 180mm\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWiring kit: Not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eCompatible With\u003c\/h4\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAny vehicle with factory or aftermarket headunit (speaker-level inputs allow OEM compatibility)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eSuitable for passenger cars, utes, SUVs, wagons, and 4WDs\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003ePairs well with Infinity Reference Series component or coaxial speakers\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWorks with 4-ohm or 2-ohm speaker loads (4-channel mode)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCompatible with 4-ohm subwoofers in bridged mode\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRecommended to pair with a dedicated 8-gauge amplifier wiring kit (sold separately)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCan be paired with a separate mono subwoofer amplifier using the preamp outputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eFrequently Asked Questions\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDoes the REF3004A work with a factory (OEM) headunit?\u003c\/strong\u003e Yes. The built-in speaker-level inputs allow you to connect this amplifier directly to the factory headunit's speaker outputs no RCA outputs required on the source unit.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCan I use this amp to power subwoofers?\u003c\/strong\u003e Yes. In bridged 2-channel mode, the REF3004A delivers 200W RMS per channel at 4 ohms, making it capable of driving a pair of 4-ohm subwoofers. Note: bridged mode requires a 4-ohm minimum load.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDo I need a separate wiring kit?\u003c\/strong\u003e Yes. Wiring and hardware are not included. Infinity recommends 8-gauge power and ground leads. A quality 8-gauge amplifier wiring kit is required for correct and safe installation.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhat is the physical size of the REF3004A?\u003c\/strong\u003e The amplifier measures 320mm wide x 55.5mm high x 180mm deep compact enough to fit under most seats or in a standard boot install alongside other gear.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eCan I add another amplifier using the preamp outputs?\u003c\/strong\u003e Yes. The REF3004A includes preamp (RCA) outputs, allowing you to pass signal to a second amplifier such as a dedicated mono sub amp without the need for an additional signal splitter.\u003c\/p\u003e","brand":"Rockford Fosgate","offers":[{"title":"Default Title","offer_id":44397454065757,"sku":"REF3004A","price":499.95,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/00ca12_105089f84a7c46e4b858d5715147715b_mv2.avif?v=1777334701","url":"https:\/\/frankiesautoelectrics.com.au\/products\/infinity-ref3004a-4-channel-car-amplifier","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}