{"product_id":"infinity-kappa-5004a-4-channel-powersports-amplifier","title":"Infinity Kappa 5004A 4-Channel Powersports Amplifier","description":"\u003cp\u003eThe Infinity Kappa 5004A is a compact four-channel Class D amplifier designed for powersports, marine, and other mobile-audio installations where space is limited. It provides dedicated amplification for up to four full-range speakers, helping an upgraded speaker system play with more headroom than a source unit alone can provide. Its compact form factor is intended for installations where a conventional amplifier may be difficult to mount.\u003c\/p\u003e\u003cp\u003eThis amplifier is suited to riders and vehicle owners building a multi-speaker system, replacing an underpowered factory setup, or adding amplified front and rear channels. It delivers 75 watts RMS to each of four channels at 4 ohms, with increased output available at 2 ohms. Two pairs of channels can also be bridged for systems that require higher power to fewer compatible speakers.\u003c\/p\u003e\u003cp\u003eThe KP5004 is built around Class D amplification, a practical choice for efficient output in electrically demanding mobile environments. Its full-range frequency response covers 20Hz to 20kHz, allowing it to support speaker-focused systems across the audible range. Adjustable input level controls help match the amplifier to the connected source.\u003c\/p\u003e\u003cp\u003eSelectable crossover controls make the amplifier adaptable to different system layouts. The front channels offer off or high-pass filtering, while the rear channels can be set to off, high-pass, or low-pass operation. Crossover points of 60Hz, 80Hz, and 120Hz help direct bass away from smaller speakers or configure the rear channels for a subwoofer application.\u003c\/p\u003e\u003cp\u003eAn aluminum chassis and conformal-coated circuit board support use in harsh outdoor-oriented installations. Both speaker-level and low-level inputs are provided, allowing integration with a range of factory and aftermarket audio sources. The amplifier can serve as the foundation for a four-speaker upgrade or as part of a mixed speaker-and-subwoofer system when wired and configured within its rated limits.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-Channel Class D Power:\u003c\/strong\u003e Supplies 75W RMS x 4 at 4 ohms for amplified multi-speaker systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-Ohm Capability:\u003c\/strong\u003e Delivers up to 125W RMS x 4 at 2 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBridgeable Channels:\u003c\/strong\u003e Configures as two 250W RMS bridged channels at 4 ohms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSelectable Crossovers:\u003c\/strong\u003e Helps tailor bass filtering for speakers or subwoofer channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh- And Low-Level Inputs:\u003c\/strong\u003e Supports connection to factory or aftermarket audio sources.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConformal-Coated PCB:\u003c\/strong\u003e Adds protection suited to demanding powersports environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDesign \u0026amp; Installation\u003c\/h3\u003e\u003cp\u003eThe Kappa 5004A uses an ultra-compact aluminum chassis with a curved body, angular end caps, and inset brushed-aluminum Infinity branding. Its circuit board is conformal-coated, and the package includes cover plates plus stainless steel mounting hardware for a clean, durable installation. Power and protect indicators assist with basic operating-status checks after installation.\u003c\/p\u003e\u003cp\u003eUse 10 AWG power and ground wiring as recommended, and install the battery-side fuse and fuse holder within 18 inches of the battery. The amplifier accepts high-level or line-level signal inputs and supports 12V or DC-offset turn-on modes. Set the gain conservatively, select the appropriate crossover mode for the speakers being powered, and confirm that all speaker loads and bridged wiring arrangements remain within the amplifier's rated configurations.\u003c\/p\u003e","brand":"Infinity","offers":[{"title":"Default Title","offer_id":45632014647366,"sku":"INFPWSKP5004AAM","price":399.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0048\/4163\/5910\/files\/61GCMB9-VRL.jpg?v=1784391936","url":"https:\/\/audiowatt.store\/products\/infinity-kappa-5004a-4-channel-powersports-amplifier","provider":"Audio Watt Store","version":"1.0","type":"link"}