{"product_id":"seventour-12-subwoofer-dual-4ω-shallow-mount-800w-rms-deep-bass-7-09-install-depth","title":"Seventour 12\" Subwoofer Dual 4Ω Shallow-Mount — 800W RMS Deep Bass, 7.09\" Install Depth","description":"\u003cp\u003e\u003cstrong\u003eThe Seventour 12\" dual 4-ohm shallow-mount subwoofer delivers deep low-frequency output with 800W RMS (1400W peak) and a compact 7.09\" install depth for tighter vehicle installations.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for drivers who want strong bass without a large enclosure, this Seventour 12-inch subwoofer balances power, size and build features. It uses dual 40-ounce magnets and a dual voice coil configuration to give flexible wiring options and reliable cone control. The speaker’s foam surround and a frequency range that reaches down to 25 Hz help it reproduce low notes clearly while fitting in many trunks, under-seats, or shallow boxes.\u003c\/p\u003e\n\n\u003ch3\u003eHow powerful is this subwoofer and what does that mean for listening?\u003c\/h3\u003e\n\u003cp\u003eThe Seventour 12\" is rated at 800W RMS and 1400W peak, indicating it can handle sustained power typical of aftermarket car amplifiers and tolerate brief power spikes. Sensitivity is 84.7 dB, so it needs a proper amplifier to reach loud listening levels. Frequency response spans 25–300 Hz, which covers the bass frequencies most music and movies require.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRMS power: 800W for continuous operation\u003c\/li\u003e\n  \u003cli\u003ePeak power: 1400W for short bursts\u003c\/li\u003e\n  \u003cli\u003eSensitivity: 84.7 dB — use a matched amp for best results\u003c\/li\u003e\n  \u003cli\u003eFrequency response: 25–300 Hz for deep bass and punch\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation constraints should I expect with this shallow-mount design?\u003c\/h3\u003e\n\u003cp\u003eThis subwoofer is a shallow-mount model with a recommended installation depth of 7.09\", making it suitable for compact enclosures and limited space installations. The mounting dimensions are optimized for many vehicle trunks and custom boxes, but measuring your installation area is still important. The dual 4-ohm voice coils provide wiring flexibility for series\/parallel connections to fit amplifier impedance requirements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended depth: 7.09\" — good for tight spaces\u003c\/li\u003e\n  \u003cli\u003eShallow basket design fits many compact enclosures\u003c\/li\u003e\n  \u003cli\u003eDual 4Ω voice coils for flexible wiring options\u003c\/li\u003e\n  \u003cli\u003eMeasure mounting hole and depth before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich build features improve performance and reliability?\u003c\/h3\u003e\n\u003cp\u003eSeventour equipped this woofer with two 40 oz high-strength magnets and a robust cone\/surround system to control excursion and maintain sound quality at higher output. The foam surround offers a balance of compliance and durability for typical automotive conditions. These components work together to reduce distortion while allowing the subwoofer to move air for impactful bass.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDual 40 oz magnets for consistent magnetic flux\u003c\/li\u003e\n  \u003cli\u003eDual voice coils for amplifier matching and wiring options\u003c\/li\u003e\n  \u003cli\u003eFoam surround for controlled cone movement\u003c\/li\u003e\n  \u003cli\u003eSturdy basket and spider for reliable operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I match this subwoofer with an amplifier and enclosure?\u003c\/h3\u003e\n\u003cp\u003eTo get the best results, pair the sub with an amplifier that can reliably supply near its RMS rating at the intended impedance. For enclosure, sealed boxes emphasize tight, accurate bass while ported enclosures increase low-frequency output; the shallow mount opens more enclosure placement options. Always follow impedance and power-handling guidelines to protect both subwoofer and amp.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMatch amplifier RMS output to 800W at chosen wiring impedance\u003c\/li\u003e\n  \u003cli\u003eChoose sealed for accuracy, ported for louder low end\u003c\/li\u003e\n  \u003cli\u003eUse proper wiring: series or parallel to reach amp impedance\u003c\/li\u003e\n  \u003cli\u003eSecure mounting and adequate ventilation for reliability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Seventour 12\" dual 4-ohm shallow subwoofer is aimed at car audio enthusiasts who want substantial bass without sacrificing trunk space. It's a good pick for custom installs, compact enclosures, and systems where flexibility in amplifier wiring is important. If you need deep, punchy low frequencies from a sub that fits tighter spaces, this model is built to meet those needs while offering professional-style power handling and component design.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this subwoofer fit in shallow enclosures?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the recommended installation depth is 7.09\", designed for shallow and compact enclosures.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What amplifier power is recommended?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Match an amplifier close to 800W RMS at your chosen wiring impedance for reliable performance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Seventour","offers":[{"title":"Default Title","offer_id":48449170276509,"sku":"B0FS1M24G7","price":115.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/seventour-12in-front-view.jpg?v=1781628753","url":"https:\/\/nexoltic.com\/products\/seventour-12-subwoofer-dual-4%cf%89-shallow-mount-800w-rms-deep-bass-7-09-install-depth","provider":"Nexoltic","version":"1.0","type":"link"}