{"product_id":"infinity-infprimus50011aam-mono-class-d-subwoofer-amplifier","title":"Infinity INFPRIMUS50011AAM Mono Class-D Subwoofer Amplifier","description":"\u003cp\u003eThe Infinity Primus 50011A is a mono Class-D amplifier made to power a dedicated car subwoofer system. It provides 500 watts RMS at 2 ohms or 300 watts RMS at 4 ohms, giving installers two documented power-match options for compatible subwoofer loads. Its compact dimensions help make a bass upgrade possible when installation space is limited.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to listeners building a subwoofer-focused system, whether they are retaining a factory radio or using an aftermarket head unit. It accepts low-level RCA-style signal input as well as high-level speaker input, allowing it to work with a broad range of source units. OEM load-detect compatibility is also intended to support integration with factory audio systems that monitor speaker-load resistance.\u003c\/p\u003e\u003cp\u003eThe Primus 50011A focuses its output range on bass frequencies, with a 10 Hz to 320 Hz frequency response. Its variable low-pass filter lets the subwoofer hand off cleanly to the vehicle's main speakers within a selectable 32 Hz to 320 Hz range. A variable phase control from 0° to 180° helps align the subwoofer's output with the rest of the system.\u003c\/p\u003e\u003cp\u003eFor system tuning, the amplifier includes adjustable bass EQ level, frequency, and width controls. Bass EQ can be set from 0 dB to 12 dB, with a selectable center-frequency range of 30 Hz to 100 Hz and a narrow-to-wide width adjustment. A supplied remote bass control gives the driver a convenient way to adjust bass level from the front seat.\u003c\/p\u003e\u003cp\u003eBuilt-in protection circuitry addresses DC, overvoltage, undervoltage, overcurrent, and overtemperature conditions. The amplifier operates on 9V to 16V vehicle electrical systems and is designed for start\/stop-equipped vehicles. It is a practical foundation for a single-subwoofer upgrade when paired with a properly impedance-matched subwoofer, appropriate power wiring, and a correctly fused installation.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMono Class-D Output:\u003c\/strong\u003e Delivers dedicated power for a compatible car subwoofer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500W RMS at 2 Ohms:\u003c\/strong\u003e Supports substantial output with a 2-ohm final load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Low-Pass Filter:\u003c\/strong\u003e Sets the subwoofer crossover point from 32 Hz to 320 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Bass EQ:\u003c\/strong\u003e Tailors bass boost level, frequency, and width.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- and Low-Level Inputs:\u003c\/strong\u003e Supports factory or aftermarket source-unit integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Bass Control:\u003c\/strong\u003e Allows accessible bass adjustment from the driver's seat.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Primus 50011A uses a compact black amplifier enclosure with Infinity's curved body styling, angular end-cap design, and prominent Infinity logo treatment. Its 9-23\/32-inch width, 1-15\/16-inch height, and 5-7\/32-inch depth are intended to help with placement in tighter vehicle locations. The manufacturer specifies a maximum operating temperature of 70°C.\u003c\/p\u003e\u003cp\u003eInstall the amplifier with suitable 4-gauge power wiring, a properly fused power connection, secure mounting hardware, and adequate ventilation. Match the connected subwoofer system to one of the documented 2-ohm or 4-ohm power ratings, then set input sensitivity, low-pass crossover, phase, and bass EQ carefully. The package includes a high-level input cable, remote bass control and cable, mounting screws with washers, spare fuses, and Allen keys.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45632011534406,"sku":"INFPRIMUS50011AAM","price":214.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/71bjO6WNxjL.jpg?v=1784391850","url":"https:\/\/audiowatt.store\/products\/infinity-infprimus50011aam-mono-class-d-subwoofer-amplifier","provider":"Audio Watt Store","version":"1.0","type":"link"}