{"product_id":"levhorzn-marriola-r8-slim-under-seat-powered-subwoofer-with-built-in-amplifier-compact-bass-upgrade-for-car-audio-8-inch-easy-install-high-level-rca-inputs-complete-wiring-kit","title":"Levhorzn Marriola R8 Slim Under-Seat Powered Subwoofer with Built-in Amplifier – Compact Bass Upgrade for Car Audio, 8 Inch, Easy Install, High-Level \u0026 RCA Inputs, Complete Wiring Kit","description":"\u003cp\u003e\u003cb\u003eBrand:\u003c\/b\u003e Levhorzn\u003c\/p\u003e\u003cp\u003e\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e【Compact Under-Seat Bass Upgrade for Daily Driving】Engineered to enhance low-frequency bass with clarity and control, this powered under-seat subwoofer improves overall sound depth without overwhelming your existing speakers.\u003c\/li\u003e\n\u003cli\u003e【Built-In Amplifier with Clean Power Output】Featuring an integrated amplifier delivering up to 300W RMS (600W peak), this subwoofer provides efficient, reliable bass performance ideal for compact audio upgrades.\u003c\/li\u003e\n\u003cli\u003e【Ultra-Slim 8” Under-Seat Design Saves Space】Slim-profile enclosure fits under most front or rear seats, or behind truck seats—no trunk box required. Perfect for vehicles with limited space where practicality matters.\u003c\/li\u003e\n\u003cli\u003e【All-in-One Design with Smart Auto Turn-On】Integrated amplifier eliminates the need for an external amp. Supports both RCA low-level and high-level speaker inputs with automatic signal sensing for hands-free operation.\u003c\/li\u003e\n\u003cli\u003e【Fully Adjustable Bass—From Refined to Hard-Hitting】Fine-tune your sound with adjustable gain, low-pass crossover (20–200 Hz), bass boost, phase control, and subsonic filter. When tuned aggressively, it delivers deep, impactful bass; when dialed back, it maintains clarity and balance for everyday listening. Built with a heavy-duty cast aluminum enclosure for excellent heat dissipation and long-term reliability.\u003c\/li\u003e\n\u003cli\u003eNOTE: Please feel free to come to us for Bass Adjustment instruction.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eBinding:\u003c\/b\u003e Electronics\u003c\/p\u003e\u003cp\u003e\u003cb\u003emodel number:\u003c\/b\u003e R8\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePart Number:\u003c\/b\u003e R8\u003c\/p\u003e\u003cp\u003e\u003cb\u003ePackage Dimensions:\u003c\/b\u003e 12.2 x 11.7 x 6.1 inches\u003c\/p\u003e","brand":"Levhorzn","offers":[{"title":"Default Title","offer_id":53409475952978,"sku":"B0FJ839XMQ","price":304.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1042\/0771\/2594\/files\/61Xc2Q36PUL.jpg?v=1778583432","url":"https:\/\/krazysales.com\/products\/levhorzn-marriola-r8-slim-under-seat-powered-subwoofer-with-built-in-amplifier-compact-bass-upgrade-for-car-audio-8-inch-easy-install-high-level-rca-inputs-complete-wiring-kit","provider":"K 4 Krazy","version":"1.0","type":"link"}