{"product_id":"sundown-audio-single-nsv6-18-ported-enclosure","title":"Sundown Audio Single 18\" NSv6 Ported Enclosure - AABE-SA-NSv6-S18SUPB-HD","description":"\u003ch2\u003eSundown Audio Single 18\" NSv6 Ported Enclosure - AABE-SA-NSv6-S18SUPB-HD\u003c\/h2\u003e\n\u003cp\u003eCustom built enclosure specifically for the Sundown Audio NSv6 18\" subwoofer. Lead time is 2-3 weeks, no refunds once enclosures have been cut out! This is a custom made box specifically for the Sundown Audio NSv6 18\" subwoofer. At Basshead Supply the goal with the “branded series” enclosures is to offer subwoofer specific enclosures that are well built, well performing and good looking enclosures at an affordable price. Using premium 1” Baltic Birch all around we are able to achieve a very strong and light enclosure. Using our refined assembly process produces an enclosure with NO visible screw holes anywhere on the enclosure. The entire enclosure is glued together with Titebond III and coupled with our 1” baffle and an additional 24mm baffle brace (on the dual subwoofer models) the enclosure is strong enough to handle high power subwoofer setups. Finished off with our carbon gray stain and a polyurethane finish these enclosures have a unique look to set it apart from all the generic prefabs. Complete with a recessed Satin Nickel Brass binding posts and prewired with OFC 10g wire, you are ready to go the moment it arrives. These are also built with love, by hand right here in the UNITED STATES OF AMERICA.\u003c\/p\u003e\n\u003ch5\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e7.0 cubic feet net enclosure\u003c\/li\u003e\n\u003cli\u003e30 hz tuning\u003c\/li\u003e\n\u003cli\u003e95.64 sq inches of port\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-sheets-userformat='{\"2\":577,\"3\":{\"1\":0},\"9\":1,\"12\":0}' data-sheets-value='{\"1\":2,\"2\":\"13.5\" x 3.875\"\"}'\u003e18\" x 5.33\" port dimensions\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e17.01\" subwoofer cut out\u003c\/li\u003e\n\u003cli\u003eEntire enclosure 1\" birch ply\u003c\/li\u003e\n\u003cli\u003e17 ply birch veneer construction\u003c\/li\u003e\n\u003cli\u003eGray stained finish\u003c\/li\u003e\n\u003cli\u003ePre-wired metal binding post\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e20\" tall\u003c\/li\u003e\n\u003cli\u003e39.75\" wide\u003c\/li\u003e\n\u003cli\u003e24.625″ deep\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003eWhat Our Experts Think\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a2823d0-9318-83e8-bfe5-daf2e03cc894-4\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a2823d0-9318-83e8-bfe5-daf2e03cc894-4\" data-turn-id-container=\"request-6a2823d0-9318-83e8-bfe5-daf2e03cc894-4\" data-testid=\"conversation-turn-104\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"abe32f45-15ab-4ef0-9bcf-92265ee29099\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"28\" data-end=\"897\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"vediwj\" data-start=\"28\" data-end=\"172\"\u003e\n\u003cstrong data-start=\"30\" data-end=\"64\"\u003eDesigned for the NSv6 Platform\u003c\/strong\u003e – Engineered specifically to maximize the performance of a single \u003cstrong data-start=\"131\" data-end=\"161\" data-is-only-node=\"\"\u003e18-inch Sundown Audio NSv6\u003c\/strong\u003e subwoofer.\u003c\/li\u003e\n\u003cli data-section-id=\"q7lggl\" data-start=\"173\" data-end=\"301\"\u003e\n\u003cstrong data-start=\"175\" data-end=\"207\"\u003eExtreme Output Ported Design\u003c\/strong\u003e – Delivers massive low-frequency extension, exceptional efficiency, and powerful bass impact.\u003c\/li\u003e\n\u003cli data-section-id=\"1x0d76z\" data-start=\"302\" data-end=\"450\"\u003e\n\u003cstrong data-start=\"304\" data-end=\"347\"\u003ePrecision-Tuned for Maximum Performance\u003c\/strong\u003e – Optimized enclosure volume and port configuration help unlock the full potential of the NSv6 series.\u003c\/li\u003e\n\u003cli data-section-id=\"7r7p6z\" data-start=\"451\" data-end=\"580\"\u003e\n\u003cstrong data-start=\"453\" data-end=\"485\"\u003eBuilt for High-Power Systems\u003c\/strong\u003e – Designed to handle the extreme excursion and power demands of Sundown’s flagship subwoofers.\u003c\/li\u003e\n\u003cli data-section-id=\"1id50r9\" data-start=\"581\" data-end=\"718\"\u003e\n\u003cstrong data-start=\"583\" data-end=\"610\"\u003eHeavy-Duty Construction\u003c\/strong\u003e – Reinforced enclosure design minimizes flex and unwanted resonance for cleaner, tighter bass reproduction.\u003c\/li\u003e\n\u003cli data-section-id=\"8xn8ug\" data-start=\"719\" data-end=\"897\" data-is-last-node=\"\"\u003e\n\u003cstrong data-start=\"721\" data-end=\"765\"\u003eExpert Choice for Competition-Level Bass\u003c\/strong\u003e – Ideal for enthusiasts seeking maximum SPL potential, deep sub-bass response, and professionally engineered enclosure performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"f12c6778-2281-422f-82fb-31dbe1be47e7\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-(--header-height)\" dir=\"auto\" data-turn-id=\"f12c6778-2281-422f-82fb-31dbe1be47e7\" data-turn-id-container=\"f12c6778-2281-422f-82fb-31dbe1be47e7\" data-testid=\"conversation-turn-103\" data-scroll-anchor=\"false\" data-turn=\"user\"\u003e\u003c\/section\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a2823d6-8220-83e8-9904-5b4161f4ce0e-4\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a2823d6-8220-83e8-9904-5b4161f4ce0e-4\" data-turn-id-container=\"request-6a2823d6-8220-83e8-9904-5b4161f4ce0e-4\" data-testid=\"conversation-turn-104\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"124ccef7-5448-4231-97ad-253ad805d85f\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp data-start=\"0\" data-end=\"244\"\u003e\u003cstrong data-start=\"0\" data-end=\"79\"\u003eQ: What is the Sundown Audio Single 18\" NSv6 Ported Enclosure designed for?\u003c\/strong\u003e\u003cbr data-start=\"79\" data-end=\"82\"\u003eA: It is a heavy-duty ported enclosure engineered specifically for one 18-inch Sundown Audio NSv6 subwoofer to maximize bass output and low-frequency performance.\u003c\/p\u003e\n\u003cp data-start=\"246\" data-end=\"427\"\u003e\u003cstrong data-start=\"246\" data-end=\"292\"\u003eQ: Why choose an 18-inch ported enclosure?\u003c\/strong\u003e\u003cbr data-start=\"292\" data-end=\"295\"\u003eA: The large driver size combined with a tuned ported design delivers deeper bass, higher efficiency, and extreme output capability.\u003c\/p\u003e\n\u003cp data-start=\"429\" data-end=\"616\"\u003e\u003cstrong data-start=\"429\" data-end=\"499\"\u003eQ: Is this enclosure designed specifically for the NSv6 subwoofer?\u003c\/strong\u003e\u003cbr data-start=\"499\" data-end=\"502\"\u003eA: Yes, it is optimized to match the airspace and tuning requirements of the Sundown Audio NSv6 18-inch subwoofer.\u003c\/p\u003e\n\u003cp data-start=\"618\" data-end=\"790\"\u003e\u003cstrong data-start=\"618\" data-end=\"668\"\u003eQ: What type of bass performance can I expect?\u003c\/strong\u003e\u003cbr data-start=\"668\" data-end=\"671\"\u003eA: Expect massive low-frequency output, deep bass extension, and high SPL capability for serious car audio enthusiasts.\u003c\/p\u003e\n\u003cp data-start=\"792\" data-end=\"929\"\u003e\u003cstrong data-start=\"792\" data-end=\"847\"\u003eQ: Is the enclosure pre-built and ready to install?\u003c\/strong\u003e\u003cbr data-start=\"847\" data-end=\"850\"\u003eA: Yes, it comes professionally assembled and ready for subwoofer installation.\u003c\/p\u003e\n\u003cp data-start=\"931\" data-end=\"1112\"\u003e\u003cstrong data-start=\"931\" data-end=\"979\"\u003eQ: What materials are used in the enclosure?\u003c\/strong\u003e\u003cbr data-start=\"979\" data-end=\"982\"\u003eA: It is constructed from heavy-duty MDF with reinforced internal bracing for maximum strength, durability, and vibration control.\u003c\/p\u003e\n\u003cp data-start=\"1114\" data-end=\"1266\"\u003e\u003cstrong data-start=\"1114\" data-end=\"1170\"\u003eQ: Does the enclosure improve subwoofer performance?\u003c\/strong\u003e\u003cbr data-start=\"1170\" data-end=\"1173\"\u003eA: Yes, the tuned ported design helps maximize output, efficiency, and overall bass response.\u003c\/p\u003e\n\u003cp data-start=\"1268\" data-end=\"1457\"\u003e\u003cstrong data-start=\"1268\" data-end=\"1331\"\u003eQ: Is this enclosure suitable for high-power audio systems?\u003c\/strong\u003e\u003cbr data-start=\"1331\" data-end=\"1334\"\u003eA: Yes, it is built to support the extreme power handling and long-excursion capabilities of the Sundown Audio NSv6 series.\u003c\/p\u003e\n\u003cp data-start=\"1459\" data-end=\"1614\"\u003e\u003cstrong data-start=\"1459\" data-end=\"1504\"\u003eQ: Can it be used for SPL-focused builds?\u003c\/strong\u003e\u003cbr data-start=\"1504\" data-end=\"1507\"\u003eA: Yes, it is an excellent choice for competition-oriented SPL systems and high-output daily driver setups.\u003c\/p\u003e\n\u003cp data-start=\"1616\" data-end=\"1793\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\u003cstrong data-start=\"1616\" data-end=\"1664\"\u003eQ: Is professional installation recommended?\u003c\/strong\u003e\u003cbr data-start=\"1664\" data-end=\"1667\"\u003eA: Yes, professional installation is recommended to ensure proper mounting, wiring, and system tuning for optimal performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003ch5\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\" data-turn-id-container=\"request-6a2823de-bb48-83e8-bd21-1f08e49c2afd-4\" data-is-intersecting=\"true\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-6a2823de-bb48-83e8-bd21-1f08e49c2afd-4\" data-turn-id-container=\"request-6a2823de-bb48-83e8-bd21-1f08e49c2afd-4\" data-testid=\"conversation-turn-104\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv data-conversation-screenshot-content=\"\" class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"88de5b6b-1195-43a0-9cba-4fe3ce067b04\" dir=\"auto\" data-message-model-slug=\"gpt-5-5\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cul data-start=\"22\" data-end=\"784\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"l0ogfr\" data-start=\"22\" data-end=\"112\"\u003eInspect the enclosure regularly for loose screws, cracks, or signs of structural damage.\u003c\/li\u003e\n\u003cli data-section-id=\"1c5gfc2\" data-start=\"113\" data-end=\"220\"\u003eTighten all subwoofer mounting hardware periodically to prevent vibrations and maintain an airtight seal.\u003c\/li\u003e\n\u003cli data-section-id=\"1aed52m\" data-start=\"221\" data-end=\"306\"\u003eCheck speaker wire and terminal connections for wear, corrosion, or loose contacts.\u003c\/li\u003e\n\u003cli data-section-id=\"1nalioj\" data-start=\"307\" data-end=\"385\"\u003eKeep the enclosure clean, dry, and free from dust, dirt, and debris buildup.\u003c\/li\u003e\n\u003cli data-section-id=\"fk2k18\" data-start=\"386\" data-end=\"461\"\u003eAvoid prolonged exposure to direct sunlight, excessive heat, or moisture.\u003c\/li\u003e\n\u003cli data-section-id=\"z0vml5\" data-start=\"462\" data-end=\"553\"\u003eInspect the port opening regularly and remove any obstructions that may restrict airflow.\u003c\/li\u003e\n\u003cli data-section-id=\"1yf2xna\" data-start=\"554\" data-end=\"652\"\u003eOperate the subwoofer within recommended power ratings to ensure reliable long-term performance.\u003c\/li\u003e\n\u003cli data-section-id=\"1g08o4e\" data-start=\"653\" data-end=\"784\" data-is-last-node=\"\"\u003eListen for rattles, vibrations, or air leaks and address any issues promptly to maintain optimal bass response and sound quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sundown Audio","offers":[{"title":"Default Title","offer_id":45711246000319,"sku":"AABE-SA-NSv6-S18SUPB-HD","price":899.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/AABE-SA-SAv2-S18-RD-01_d11e248b-36ca-4bc3-8187-1d4ddc90d94d.png?v=1781265870","url":"https:\/\/www.mybackyardzone.com\/products\/sundown-audio-single-nsv6-18-ported-enclosure","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}