{"product_id":"massive-audio-gtr-series-12-subwoofer","title":"Massive Audio GTR Series 12\" Subwoofer","description":"\u003cdiv\u003e\n\u003cp\u003eMassive Audio GTR Series 12\" Subwoofer pairs a double-stacked 120 oz high-flux Y30 magnet with a 2.5\" dual 4-ohm voice coil for high-power, tightly controlled bass in a rugged 12-inch driver.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eSize\u003c\/b\u003e: 12\" — A standard 12-inch format designed to deliver deep bass with room for enclosure tuning in both sealed and ported configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRMS Range\u003c\/b\u003e: 300w-1000w (500w RMS ideal) — Indicates the continuous power range the driver handles; pairing within this window supports clean, linear output without overdriving the voice coil.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePeak Power\u003c\/b\u003e: 1600w — Represents transient power handling for dynamic bass bursts when the system demands rapid energy delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCone\u003c\/b\u003e: Textured Non-Pressed Pulp with Resin — Provides stiffness and damping to reduce cone flex and improve control under high excursion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eVoice Coil\u003c\/b\u003e: 2.5\" Dual 4 Ohm — Two 2.5-inch coils at 4 ohms each offer flexible wiring options for impedance matching and power distribution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSurround\u003c\/b\u003e: Custom High Roll Foam with MASSIVE Logo — Supports linear excursion and durable sealing against air blowout at high output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMagnet\u003c\/b\u003e: 120oz, double-stacked high-flux Y30 Strontium ferrite magnets — High magnetic flux and increased excursion potential aid low-end extension and control in demanding builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTerminals\u003c\/b\u003e: Terminal Case with Flexible Pure Copper Wire — Ensures low-resistance connections and reliable wiring for high-current signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBasket\u003c\/b\u003e: Heavy Gauge Steel — Robust frame that resists flex and maintains alignment under power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTinsel Leads\u003c\/b\u003e: High-Grade Woven Round — High-quality leads designed to withstand repeated motion during bass cycles without fatigue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eX-Max\u003c\/b\u003e: 15 mm — Specifies mechanical excursion capability, contributing to deeper bass response in suitable enclosures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSPL\u003c\/b\u003e: 84.5 dB — Sensitivity indicator of how efficiently the driver converts electrical power into sound pressure at a standard distance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFs\u003c\/b\u003e: 36 Hz — Low-frequency resonance point, indicating potential for strong output in the bass region down around 36 Hz.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnclosure Options\u003c\/b\u003e: Ported Box 13.8\"H x 20\"D x 13.8\"W; Sealed Box 1 ft3 — These enclosure specs define the two supported volumes\/ configs for integrating the sub into a car audio system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe GTR 12\" is built for car audio enthusiasts aiming for serious bass with solid build quality and flexible wiring options. Its combination of a heavy steel basket, large 120 oz magnet, and dual 4-ohm coils supports powerful, controlled output in either sealed or ported applications, with clear enclosure guidance to maximize performance in real-world installs.\u003c\/p\u003e \u003cbr\u003e \u003ctable width=\"450\" style=\"height: 285px;\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eRMS Range\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e300w-1000w (\u003cstrong\u003e500w RMS Ideal\u003c\/strong\u003e) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003ePeak Power\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e1600w\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eCone\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eTextured Non-Pressed Pulp with Resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eVoice Coil\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e2.5\" Dual 4 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSurround\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eCustom High Roll Foam with MASSIVE Logo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eMagnet\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e120oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eTerminals\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eTerminal Case with Flexible Pure Copper Wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eBasket\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eHeavy Gauge Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eTinsel Leads\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eHigh-Grade Woven Round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eX-Max\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSPL\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e84.5dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eFS\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e36Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003ePorted Box\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e13.8\"H x 20\"D x 13.8\"W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSealed Box\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e1 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e \u003cbr\u003e \u003ctable width=\"450\" style=\"height: 285px;\" data-mce-fragment=\"1\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSize\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e12\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eRMS Range\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e300w-1000w (\u003cstrong\u003e500w RMS Ideal\u003c\/strong\u003e) \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003ePeak Power\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e1600w\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eCone\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eTextured Non-Pressed Pulp with Resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eVoice Coil\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e2.5\" Dual 2 Ohm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSurround\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eCustom High Roll Foam with MASSIVE Logo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eMagnet\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e120oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eTerminals\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eTerminal Case with Flexible Pure Copper Wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eBasket\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eHeavy Gauge Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eTinsel Leads\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003eHigh-Grade Woven Round\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eX-Max\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e15mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSPL\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e84.5dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eFS\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e36Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003ePorted Box\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e13.8\"H x 20\"D x 13.8\"W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\" data-mce-fragment=\"1\"\u003e\n\u003ctd style=\"width: 105.188px; height: 19px;\" data-mce-fragment=\"1\"\u003eSealed Box\u003c\/td\u003e\n\u003ctd style=\"width: 426.812px; height: 19px;\" data-mce-fragment=\"1\"\u003e1 ft3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Massive Audio","offers":[{"title":"Dual 2 Ohm","offer_id":49850255802596,"sku":null,"price":233.99,"currency_code":"USD","in_stock":true},{"title":"Dual 4 Ohm","offer_id":49850255835364,"sku":null,"price":233.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0842\/2522\/9028\/files\/GTR12_FRONT_38eca950-a55a-461e-9ee0-e31fa57eecd4.webp?v=1789262013","url":"https:\/\/www.12voltoutlet.com\/products\/massive-audio-gtr-series-12-subwoofer","provider":"12 Volt Outlet","version":"1.0","type":"link"}