{"product_id":"infinity-reference-3004a-4-channel-amplifier-400w-rms-2-ohm-stable-high-level-input","title":"Infinity Reference 3004A 4-Channel Amplifier | 400W RMS | 2 Ohm Stable | High-Level Input","description":"\u003cp\u003eUpgrade your car audio system with the \u003cstrong\u003eReference Series 4-Channel Class H Car Amplifier\u003c\/strong\u003e, a versatile and efficient amplifier designed to deliver clean, controlled power to your vehicle's speakers. With a total power output of \u003cstrong\u003e400 watts\u003c\/strong\u003e, the amplifier delivers \u003cstrong\u003e75W × 4 channels at 4Ω\u003c\/strong\u003e, \u003cstrong\u003e100W × 4 channels at 2Ω\u003c\/strong\u003e, or up to \u003cstrong\u003e200W × 2 channels when bridged at 4Ω\u003c\/strong\u003e. Its 2-ohm stable design provides flexibility for a wide range of car audio configurations, while the variable high-pass and low-pass crossover controls allow precise system tuning. Speaker-level high-level inputs make integration with factory stereos convenient, while low-level RCA inputs support aftermarket head units. Built-in protection against short circuits, high temperature, and over\/under-voltage helps provide reliable operation during everyday use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Channel Class H Amplifier:\u003c\/strong\u003e Designed to provide powerful and efficient amplification for multi-speaker car audio systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75W × 4 @ 4Ω:\u003c\/strong\u003e Delivers clean RMS power for compatible speakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100W × 4 @ 2Ω:\u003c\/strong\u003e Provides additional power for compatible 2-ohm speaker configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200W × 2 Bridged @ 4Ω:\u003c\/strong\u003e Bridge channels for higher-power applications where compatible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e400W Total Power Output:\u003c\/strong\u003e Provides substantial amplification for a complete car audio upgrade.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Stable:\u003c\/strong\u003e Supports flexible speaker configurations when correctly matched to the amplifier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Level Speaker Inputs:\u003c\/strong\u003e Allows integration with compatible factory head units without dedicated RCA outputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Amplifier Outputs:\u003c\/strong\u003e One pair of pre-amp outputs enables further system expansion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable High-Pass \u0026amp; Low-Pass Filters:\u003c\/strong\u003e Adjustable from 32Hz to 320Hz for precise speaker and subwoofer system tuning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Level Control:\u003c\/strong\u003e Adjustable sensitivity helps match the amplifier to different head-unit signal levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Noise \u0026amp; Distortion:\u003c\/strong\u003e Designed to maintain clean audio performance at higher output levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOnboard Protection:\u003c\/strong\u003e Protection against short circuits, overheating, overvoltage, and undervoltage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED Power\/Protect Indicator:\u003c\/strong\u003e Provides quick visual indication of amplifier operating and protection status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Turn-On Mode:\u003c\/strong\u003e DC and REM turn-on options help accommodate high-level and low-level signal installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePower Output \u0026amp; Configuration\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:12px;border:1px solid #ddd;background:#f7f7f7;text-align:left;\"\u003eConfiguration\u003c\/th\u003e\n\u003cth style=\"padding:12px;border:1px solid #ddd;background:#f7f7f7;text-align:left;\"\u003eRMS Power\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e4Ω Stereo\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e75W × 4 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e2Ω Stereo\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e100W × 4 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e4Ω Bridged\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e200W × 2 Channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eTotal Power Output\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e400W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;border:1px solid #ddd;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"padding:12px;border:1px solid #ddd;background:#f7f7f7;text-align:left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding:12px;border:1px solid #ddd;background:#f7f7f7;text-align:left;\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eAmplifier Type\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eClass H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eChannels\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e4 Channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eMinimum Stable Load\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e2Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003ePower @ 4Ω\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e75W × 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003ePower @ 2Ω\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e100W × 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eBridged Power\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e200W × 2 @ 4Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eTotal Power Output\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e400W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eFrequency Response\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e10Hz – 40kHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eTHD\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eSignal-to-Noise Ratio\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e\u0026gt;80dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eHigh-Pass Filter\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e32Hz – 320Hz Variable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eLow-Pass Filter\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e32Hz – 320Hz Variable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eLow-Level Input Sensitivity\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e200mV – 2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eHigh-Level Input Sensitivity\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e2V – 20V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003ePre-Amplifier Outputs\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e1 Pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eFuse Rating\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e60A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eRecommended Wiring\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003e8 AWG Amplifier Wiring Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eProtection\u003c\/td\u003e\n\u003ctd style=\"padding:12px;border:1px solid #ddd;\"\u003eShort Circuit, Over-Temperature, Overvoltage \u0026amp; Undervoltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eInstallation \u0026amp; Compatibility\u003c\/h2\u003e\n\n\u003cp\u003eThe Reference Series 4-Channel Class H amplifier is suitable for upgrading factory or aftermarket car audio systems. Its high-level inputs allow integration with compatible OEM stereos, while low-level RCA inputs provide connectivity with aftermarket head units. The amplifier can power compatible component speakers, coaxial speakers, or other correctly matched loads. Channels can also be bridged for higher-power applications at 4Ω.\u003c\/p\u003e\n\n\u003cp\u003eAn \u003cstrong\u003e8 AWG amplifier wiring kit\u003c\/strong\u003e is recommended for installation. Professional installation is recommended to ensure correct power, grounding, speaker impedance, gain adjustment, crossover configuration, and protection settings.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Choose This 4-Channel Car Amplifier?\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eFlexible 4-channel amplification for complete speaker upgrades.\u003c\/li\u003e\n\u003cli\u003e2-ohm stable design supports a wide range of speaker configurations.\u003c\/li\u003e\n\u003cli\u003e75W RMS × 4 at 4Ω and 100W RMS × 4 at 2Ω.\u003c\/li\u003e\n\u003cli\u003eBridgeable 200W × 2 output at 4Ω for higher-power applications.\u003c\/li\u003e\n\u003cli\u003eVariable HPF and LPF controls for accurate audio tuning.\u003c\/li\u003e\n\u003cli\u003eHigh-level inputs make OEM stereo integration easier.\u003c\/li\u003e\n\u003cli\u003eBuilt-in protection circuitry helps safeguard the amplifier and connected equipment.\u003c\/li\u003e\n\u003cli\u003eSuitable for both factory and aftermarket car audio systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eIs this amplifier stable at 2 ohms?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. The amplifier is specified as 2-ohm stable and delivers 100W RMS × 4 channels at 2Ω.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eHow much power does it deliver at 4 ohms?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eIt delivers 75W RMS × 4 channels at 4Ω.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan the amplifier be bridged?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. It can deliver 200W × 2 channels when bridged at 4Ω, provided the connected speakers or subwoofers are compatible with the bridged configuration.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eCan I connect this amplifier to a factory car stereo?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. The amplifier includes high-level speaker inputs for integration with compatible factory head units, in addition to low-level RCA inputs.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eDoes it have adjustable crossovers?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eYes. Both high-pass and low-pass filters are variable from 32Hz to 320Hz, allowing you to tune the amplifier according to your speaker and system configuration.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003e\u003cstrong\u003eWhat wiring kit is recommended?\u003c\/strong\u003e\u003c\/summary\u003e\n\u003cp\u003eAn 8 AWG amplifier wiring kit is recommended for installation.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"INFINITY","offers":[{"title":"Default Title","offer_id":48701792125182,"sku":null,"price":19999.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/7974\/6558\/files\/photo-output_c37d24ff-1765-4078-b5a6-8b7156993bcd.jpg?v=1786276482","url":"https:\/\/www.sahibacar.in\/products\/infinity-reference-3004a-4-channel-amplifier-400w-rms-2-ohm-stable-high-level-input","provider":"Sahiba Car","version":"1.0","type":"link"}