{"product_id":"rockford-fosgate-punch-p400x4-4-channel-amplifier","title":"Rockford Fosgate Punch P400X4 4-Channel Amplifier","description":"\u003cdiv\u003e\n\u003cp\u003eThe Rockford Fosgate Punch P400X4 is a four-channel amplifier built for 4‑way front‑stage\/rear‑fill or 3‑way front‑stage\/sub setups, delivering flexible power and onboard tone shaping for demanding car audio builds.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eNumber of channels\u003c\/b\u003e: 4‑channel configuration lets you run four speakers or bridge channels for higher output in a multi‑speaker system, enabling versatile front\/rear or front\/sub configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRated power (RMS)\u003c\/b\u003e: 50 Watts x 4 @ 4Ω, 100 Watts x 4 @ 2Ω, 200 Watts x 2 @ 4Ω. Real‑world: choose 4Ω or 2Ω loads to suit your front channels or bridge two channels for subs or high‑efficiency drivers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBridged Dynamic Power\u003c\/b\u003e: 82 Watts x 4 @ 4Ω, 137 Watts x 4 @ 2Ω, 266 Watts x 2 @ 4Ω. In bridge\/paired‑channel mode you get higher wattage where you need it, such as subs or demanding front channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e12 dB\/Octave Butterworth crossover\u003c\/b\u003e: Provides a steep but musical roll‑off to separate bass from mids and highs, helping every speaker sit in its proper band with less interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh level input with Auto Turn-On\u003c\/b\u003e: Enables integration with factory radios and allows the amp to turn on automatically without a dedicated remote sense wire.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePUNCH EQ on‑board\u003c\/b\u003e: +18 dB boost at 45 Hz for bass presence and flexibility to dial in punchy low end within your cabin space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eC.L.E.A.N. Setup\u003c\/b\u003e: Streamlined alignment of inputs and outputs for a clean signal path and reliable performance during setup.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eProtection and construction\u003c\/b\u003e: Short circuit protection and over‑current protection, plus a cast aluminum heatsink with convection cooling for durable operation in automotive environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eStealth top‑mounted control panel \u0026amp; CTA‑2006 compliant\u003c\/b\u003e: Keeps controls accessible yet discreet on installation, with compliance for standardized car audio testing guidelines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRemote indicators and signaling\u003c\/b\u003e: Power\/Protect\/Thermal LED indicators plus input\/output clip LEDs help you monitor performance at a glance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eInputs, outputs, and wiring\u003c\/b\u003e: 2 RCA input pair, captive C‑Clamp speaker and power connections (8 AWG–18 AWG input\/output), designed for flexible vehicle installs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eOperating range and efficiency\u003c\/b\u003e: Class A\/B topology with ~67% average efficiency at 4Ω and a 9–16 VDC operating range, suitable for typical automotive electrical systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDimensions and weight\u003c\/b\u003e: 2.38\" H x 7.76\" W x 11.03\" D (6.05 x 19.71 x 28.02 cm); shipping weight 10.8 lb (4.89 kg).\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRecommended fuse\u003c\/b\u003e: 60 A (not included).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIn a real car audio build, the P400X4 suits a four‑speaker front stage with rear fill or a three‑way front stage plus subwoofer setup, offering flexible power, targeted tone shaping, and robust protection to keep your system sounding tight and reliable under typical daily driving conditions.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Rockford Fosgate","offers":[{"title":"Default Title","offer_id":49850252263652,"sku":null,"price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/p400x4_1-575x0.webp?v=1789261940","url":"https:\/\/www.12voltoutlet.com\/products\/rockford-fosgate-punch-p400x4-4-channel-amplifier","provider":"12 Volt Outlet","version":"1.0","type":"link"}