{"product_id":"infinity-reference-3004a-4-channel-amplifier","title":"Infinity Reference 3004A 4-Channel Amplifier","description":"\u003cdiv\u003e\n\u003cp\u003eThe Infinity Reference 3004A is a 4-channel amplifier delivering 75W RMS per channel at 4 ohms, built for upgrading factory radios with clean, controlled power. It can also run at 2 ohms for higher output and bridges the rear channels to drive a sub, all with Class H efficiency for real-world listening levels.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003ePower output (4 channels)\u003c\/b\u003e: 75W RMS x4 @ 4 ohms — ample drive for a four-speaker upgrade in most vehicles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower output (at 2 ohms)\u003c\/b\u003e: 100W RMS x4 @ 2 ohms — higher current capability for demanding speaker loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBridged power (4-ohms)\u003c\/b\u003e: 200W RMS x2 bridged @ 4 ohms — bridge the rear channels to push a sub while fronts handle the speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eClass H technology\u003c\/b\u003e: Maintains efficiency across a wide range of output levels, reducing heat and draw at typical listening levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFilters\u003c\/b\u003e: Separate high- and low-pass filters on front and rear channels (32–320 Hz, 12 dB\/oct) to tailor each path and run full-range fronts with a bridged sub without an extra crossover.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInputs and turn-on\u003c\/b\u003e: Speaker-level inputs and signal-sensing turn-on support factory radios without an aftermarket head unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePreamp outputs\u003c\/b\u003e: Preamp outputs allow passing the signal downstream to a dedicated mono sub amp later.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIncluded adapters\u003c\/b\u003e: Bare wire-to-RCA adapters included for both preamp and speaker-level inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePower wiring \u0026amp; fuses\u003c\/b\u003e: Recommended 8-gauge power\/ground wire; two 30A fuses (one installed, one spare).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions\u003c\/b\u003e: 12-5\/8\"W x 2-1\/4\"H x 7\"D.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWarranty\u003c\/b\u003e: 1-year warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat’s in the box\u003c\/b\u003e: Four-channel amplifier; four 30A fuses (two installed \/ two spares); four speaker wire-to-RCA adapters; mounting hardware; logo badge; owner's manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a real-world install, the 3004A powers a four-speaker front\/rear setup from a factory head unit, with the option to bridge the rears for sub bass while maintaining clean mid\/high performance from the front channels. The OEM-friendly inputs, adjustable crossovers, and downstream preamp outputs provide a scalable upgrade path without replacing the head unit, and the compact form with a sensible 8-gauge wiring recommendation fits a wide range of vehicles.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":49850258981092,"sku":null,"price":289.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/g108R3004A-o_other1.jpg?v=1789262092","url":"https:\/\/www.12voltoutlet.com\/products\/infinity-reference-3004a-4-channel-amplifier","provider":"12 Volt Outlet","version":"1.0","type":"link"}