{"product_id":"massive-audio-gtr64-6-400-watts-rms-dual-4-ohm-subwoofer","title":"Massive Audio GTR64 - 6.5\" 400 Watts RMS Dual 4 Ohm Subwoofer","description":"\u003cp\u003eMassive Audio GTR64 is a car subwoofer for an aftermarket vehicle audio installation. Match the specifications, connections and mounting requirements below to your system before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Massive Audio\u003c\/li\u003e\n\u003cli\u003eManufacturer part number: GTR64\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eKey specifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSize: 6.5\"\u003c\/li\u003e\n\u003cli\u003eRMS Range: 200w-400w (300w RMS Ideal)\u003c\/li\u003e\n\u003cli\u003ePeak Power: 600w\u003c\/li\u003e\n\u003cli\u003eCone: Textured Non-Pressed Pulp with Resin\u003c\/li\u003e\n\u003cli\u003eVoice Coil: 1.5\" Dual 4 Ohm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFeatures and installation details\u003c\/h2\u003e\u003cp\u003eSOLD AS EACH\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMassive Audio GTR Series Subwoofers – Built for Power, Designed for Precision\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe GTR Series subwoofers by Massive Audio are engineered to deliver extreme performance with audiophile-level sound quality. Each subwoofer features a Textured Non-Pressed Pulp cone, reinforced with dual red stitching for enhanced durability, and a Custom High Roll Foam surround emblazoned with the MASSIVE logo for optimized excursion and control. This precision cone assembly is securely bonded to a rugged, heavy-gauge steel basket finished in an industrial-grade textured paint.\u003c\/p\u003e\n\u003cp\u003eAt the core of the GTR Series lies a pair of stacked, high-flux Y30 65oz Strontium Ferrite magnets that generate powerful magnetic force for deep, clean bass. The 1.5\" high-temperature voice coil, proudly made in the USA, ensures consistent performance under extreme loads. A high-quality spider suspension system, combined with durable woven tinsel leads and flexible pure copper wiring, connects seamlessly to a custom terminal case, ensuring reliable signal transfer.\u003c\/p\u003e\n\u003cp\u003eFrom construction to sound output, the GTR Series embodies Massive Audio’s commitment to premium quality, performance, and unbeatable value.\u003c\/p\u003e\n\u003ch2\u003eManuals \u0026amp; Downloads\u003c\/h2\u003e\n\n\n\n\u003ch2\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy gauge Steel Basket with Industrial Texture Painting\u003c\/li\u003e\n\u003cli\u003eDual Stacked High Flux Y30 65oz Strontium Ferrite Magnets\u003c\/li\u003e\n\u003cli\u003eDual Impedance \/ 1.5\" Hi-Temp Voice Coil - Made in the USA\u003c\/li\u003e\n\u003cli\u003eCustom High Roll Foam with MASSIVE Logo\u003c\/li\u003e\n\u003cli\u003eTextured Non-Pressed Pulp with Resin\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003e\u003cstrong\u003eSPECIFICATIONS\u003cbr\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ctable\u003e\n\n  \n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e6.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRMS Range\u003c\/td\u003e\n\u003ctd\u003e200w-400w (300w RMS Ideal) \n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeak Power\u003c\/td\u003e\n\u003ctd\u003e600w\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCone\u003c\/td\u003e\n\u003ctd\u003eTextured Non-Pressed Pulp with Resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoice Coil\u003c\/td\u003e\n\u003ctd\u003e1.5\" Dual 4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurround\u003c\/td\u003e\n\u003ctd\u003eCustom High Roll Foam with MASSIVE Logo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMagnet\u003c\/td\u003e\n\u003ctd\u003e65oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTerminals\u003c\/td\u003e\n\u003ctd\u003eTerminal Case with Flexible Pure Copper Wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBasket\u003c\/td\u003e\n\u003ctd\u003eHeavy Gauge Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTinsel Leads\u003c\/td\u003e\n\u003ctd\u003eHigh-Grade Woven Round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eX-Max\u003c\/td\u003e\n\u003ctd\u003e10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSPL\u003c\/td\u003e\n\u003ctd\u003e79.5dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS\u003c\/td\u003e\n\u003ctd\u003e55.8Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePorted Box\u003c\/td\u003e\n\u003ctd\u003e7.9\"H x 15\"D x 8.7\"W \/ 1.5\" x 8\" Round Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSealed Box\u003c\/td\u003e\n\u003ctd\u003e.35 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Depth\u003c\/td\u003e\n\u003ctd\u003e5.433\" \/ 138mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Diameter \u003c\/td\u003e\n\u003ctd\u003e6.929\" \/ 176mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Cut Diameter\u003c\/td\u003e\n\u003ctd\u003e5.787\" \/ 147mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e11 Lbs. \n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eMore from Massive Audio\u003c\/h2\u003e\u003cp\u003eExplore these related options. Compare specifications and vehicle fitment when choosing an alternative or planning an installation.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCompare: \u003ca href=\"\/products\/massive-audio-summo64xl-150-watts-rms-dual-4-ohm-subwoofer\"\u003eMassive Audio SUMMO64XL - 6.5\" 200 Watts RMS DUAL 4 Ohm, 1.5\" V.C. Subwoofer\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/massive-audio-gtr62-6-5-400-watts-rms-dual-2-ohm-subwoofer-with-grill\"\u003eMassive Audio GTR62 - 6.5\" 400 Watts RMS Dual 2 Ohm Subwoofer With Grill\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/massive-audio-gtx64-dual-4-ohm-subwoofer\"\u003eMassive Audio GTX64 - 6\" 250 Watts RMS Dual 4 Ohm Subwoofer\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Massive Audio","offers":[{"title":"Default Title","offer_id":46301056630869,"sku":"GTR64","price":109.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0947\/5040\/files\/GTR64_BACK_2000x2000_06a2518a-9fdf-484a-8360-a6d2f5b6f426.jpg?v=1791471236","url":"https:\/\/speedzone-web.com\/products\/massive-audio-gtr64-6-400-watts-rms-dual-4-ohm-subwoofer","provider":"Speedzone Performance LLC","version":"1.0","type":"link"}