{"id":9970385420528,"title":"RetroSound® SUB8100 Subwoofer and Quadraphonic Amplifier Bundle","handle":"retrosound-subwoofer-amplifier","description":"\u003cp\u003e\u003cb\u003eThe Ultimate Vintage Car Audio Upgrade\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eTake your classic car’s audio experience to the next level with this powerful, custom car audio upgrade bundle from RetroSound. Featuring the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eSUB-8100 8-inch Powered Subwoofer System\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eand the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eQuadraphonic 4-Channel Power Amplifier\u003c\/b\u003e, this package is designed specifically for vintage vehicles, offering the perfect balance of modern sound performance and retro style.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch3\u003eSUB-8100 8-inch Powered Subwoofer System:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompact yet powerful, with an 8-inch subwoofer and a built-in 100-watt amplifier, designed to deliver deep, high-quality bass while saving space. Perfect for custom car audio installations in vintage cars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable crossover and bass boost for precise sound control.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEasy-to-install design, perfect for under-seat or trunk mounting.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuadraphonic 4-Channel Power Amplifier:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e45 watts per channel, delivering high-definition sound with minimal distortion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFull-range Class D amplifier for clear and efficient power output, enhancing your music's detail and depth.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompact chassis for seamless installation in tight spaces, ideal for classic cars with limited room.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUpgrade your car’s audio system at a price that’s lower than you might expect.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cb\u003eThis exclusive RetroSound bundle offers high-quality performance with built-in savings, giving you premium sound for less\u003c\/b\u003e. Enjoy powerful bass and crisp, distortion-free sound with this subwoofer and amp combo, designed to provide the best audio upgrade for classic and retro cars.\u003c\/div\u003e","published_at":"2026-04-04T15:47:04-07:00","created_at":"2026-04-04T15:47:05-07:00","vendor":"RetroSound","type":"Amplifiers \u0026 Subwoofers","tags":["amplifier","amplifiers","amps\u0026subs","Subwoofer","subwoofers","universal products"],"price":39999,"price_min":39999,"price_max":39999,"available":true,"price_varies":false,"compare_at_price":43899,"compare_at_price_min":43899,"compare_at_price_max":43899,"compare_at_price_varies":false,"variants":[{"id":49501256810736,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"QUAD SUB KIT","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"RetroSound® SUB8100 Subwoofer and Quadraphonic Amplifier Bundle","public_title":null,"options":["Default Title"],"price":39999,"weight":6690,"compare_at_price":43899,"inventory_quantity":0,"inventory_management":null,"inventory_policy":"deny","barcode":null,"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hitechclassics.com\/cdn\/shop\/files\/QUADSUB-Kit-Hero.jpg?v=1775342827","\/\/www.hitechclassics.com\/cdn\/shop\/files\/Quadraphonic_1_bf2c5277-530c-4ab9-bc8e-6d93523b00b3.jpg?v=1775342827","\/\/www.hitechclassics.com\/cdn\/shop\/files\/SUB8100_b92b1206-826a-4244-9017-e4052ebccddf.jpg?v=1775342827"],"featured_image":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/QUADSUB-Kit-Hero.jpg?v=1775342827","options":["Title"],"media":[{"alt":null,"id":44161155825904,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1600,"width":1600,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/QUADSUB-Kit-Hero.jpg?v=1775342827"},"aspect_ratio":1.0,"height":1600,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/QUADSUB-Kit-Hero.jpg?v=1775342827","width":1600},{"alt":null,"id":44161155858672,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2500,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Quadraphonic_1_bf2c5277-530c-4ab9-bc8e-6d93523b00b3.jpg?v=1775342827"},"aspect_ratio":1.0,"height":2500,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/Quadraphonic_1_bf2c5277-530c-4ab9-bc8e-6d93523b00b3.jpg?v=1775342827","width":2500},{"alt":null,"id":44161155891440,"position":3,"preview_image":{"aspect_ratio":1.779,"height":1405,"width":2500,"src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/SUB8100_b92b1206-826a-4244-9017-e4052ebccddf.jpg?v=1775342827"},"aspect_ratio":1.779,"height":1405,"media_type":"image","src":"\/\/www.hitechclassics.com\/cdn\/shop\/files\/SUB8100_b92b1206-826a-4244-9017-e4052ebccddf.jpg?v=1775342827","width":2500}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cb\u003eThe Ultimate Vintage Car Audio Upgrade\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eTake your classic car’s audio experience to the next level with this powerful, custom car audio upgrade bundle from RetroSound. Featuring the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eSUB-8100 8-inch Powered Subwoofer System\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eand the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eQuadraphonic 4-Channel Power Amplifier\u003c\/b\u003e, this package is designed specifically for vintage vehicles, offering the perfect balance of modern sound performance and retro style.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eKey Features:\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch3\u003eSUB-8100 8-inch Powered Subwoofer System:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompact yet powerful, with an 8-inch subwoofer and a built-in 100-watt amplifier, designed to deliver deep, high-quality bass while saving space. Perfect for custom car audio installations in vintage cars.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eAdjustable crossover and bass boost for precise sound control.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eEasy-to-install design, perfect for under-seat or trunk mounting.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuadraphonic 4-Channel Power Amplifier:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e45 watts per channel, delivering high-definition sound with minimal distortion.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eFull-range Class D amplifier for clear and efficient power output, enhancing your music's detail and depth.\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompact chassis for seamless installation in tight spaces, ideal for classic cars with limited room.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eUpgrade your car’s audio system at a price that’s lower than you might expect.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cb\u003eThis exclusive RetroSound bundle offers high-quality performance with built-in savings, giving you premium sound for less\u003c\/b\u003e. Enjoy powerful bass and crisp, distortion-free sound with this subwoofer and amp combo, designed to provide the best audio upgrade for classic and retro cars.\u003c\/div\u003e"}