{"product_id":"retrosound-d-412-4-in-x-10-in-replacement-dash-speaker-thin-fit","title":"RetroSound D-412 4 in x 10 in Replacement Dash Speaker - Thin Fit","description":"\u003cp\u003eIn this review the RetroSound D-412 replacement dash speaker is evaluated for classic vehicle owners who want a straightforward audio upgrade without major dash modification. The single most compelling reason to buy is its ability to deliver a usable stereo mix from a single, ultra-thin driver, making it ideal when space is limited or original speaker openings are shallow. The reviewer found it easy to install in tight locations and praised the clear highs from the Mylar tweeters while noting the treated foam surround helps keep voices and instruments sounding natural.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStereo mix from one speaker:\u003c\/strong\u003e Provides a fuller soundstage when only a single dash opening is available, avoiding the hollow mono feel common in older setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-thin design:\u003c\/strong\u003e Fits into shallow dash cavities and behind bezels where thicker replacements would not, reducing installation hassle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTreated foam surround:\u003c\/strong\u003e Smooths midrange response for more natural vocals and instruments without harshness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMylar tweeters:\u003c\/strong\u003e Deliver crisp, clear highs that bring detail to vocal sibilance and cymbals without becoming brittle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal bracket sold separately:\u003c\/strong\u003e The RS-UB1KT bracket option allows secure mounting in a variety of dash openings for a cleaner fit and finish.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe D-412 is best for classic car and truck owners who want improved audio without cutting new openings or modifying original dash trim; it suits those replacing small factory dash speakers or fitting a single speaker where stereo pairs are impractical. Installers who value a slim profile and clear highs will appreciate the Mylar tweeters and treated surround.\u003c\/p\u003e\n\u003cp\u003eThose who need heavy bass, multi-driver component setups, or factory-specific mounting hardware included should look elsewhere, since this product focuses on compact fit and balanced mid\/high performance and the universal bracket is a separate purchase.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGood overall \u003cstrong\u003esound quality\u003c\/strong\u003e for a single dash speaker, with a balanced midrange and clear highs.\u003c\/li\u003e\n\u003cli\u003eUltra-thin profile makes \u003cstrong\u003einstallation\u003c\/strong\u003e into tight dash cavities straightforward.\u003c\/li\u003e\n\u003cli\u003eTreated foam surround improves naturalness and reduces harshness in vocals and instruments.\u003c\/li\u003e\n\u003cli\u003eOffers solid \u003cstrong\u003evalue for money\u003c\/strong\u003e compared with replacing entire dash assemblies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMounting holes receive mixed feedback, so some users may need additional hardware or minor drilling to secure the speaker.\u003c\/li\u003e\n\u003cli\u003eNot intended to replace large door or subwoofer speakers for deep bass-focused systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eRetroSound D-412 dash speaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e4 in x 10 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003eUltra-thin coaxial with Mylar tweeter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurround\u003c\/td\u003e\n\u003ctd\u003eTreated foam surround for smooth sound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStereo capability\u003c\/td\u003e\n\u003ctd\u003eStereo mix from single speaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eUniversal bracket RS-UB1KT sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe RetroSound D-412 is a practical, cost-effective upgrade for classic vehicle owners who need a slim replacement dash speaker that improves clarity and preserves dash integrity. Its stereo mix capability and crisp Mylar tweeter make it a solid choice for better daily listening, while the thin design reduces installation compromise, making it a good value for the intended use.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this speaker fit shallow dash cavities?\u003c\/strong\u003e\u003cbr\u003eYes, the ultra-thin design is specifically intended to fit tight dash spaces where standard speakers are too deep.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it provide true stereo output?\u003c\/strong\u003e\u003cbr\u003eIt provides a stereo mix from a single speaker to create a fuller sound when only one dash opening is available, rather than separate left and right drivers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a mounting bracket included?\u003c\/strong\u003e\u003cbr\u003eNo, the universal speaker bracket (RS-UB1KT) is sold separately if you need an adapter for nonstandard mounting holes.\u003c\/p\u003e","brand":"Retro Manufacturing","offers":[{"title":"Default Title","offer_id":46754947432667,"sku":"B00VWH3LU6","price":74.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61zqqQjF1tL._AC_SL1500.jpg?v=1747804714","url":"https:\/\/gearmusthave.com\/products\/retrosound-d-412-4-in-x-10-in-replacement-dash-speaker-thin-fit","provider":"GearMustHave","version":"1.0","type":"link"}