{"product_id":"professional-series-ported-8-enclosure-jl-audio-8w7ae-3","title":"Professional Series Ported 8\" Enclosure | JL Audio 8W7AE-3","description":"\u003cstyle\u003e.df-wrap{font-family:'Helvetica Neue',Arial,sans-serif;line-height:1.75;color:#d6d3d1;max-width:1100px;margin:0 auto;background:#0c0a09}.df-wrap *{box-sizing:border-box}.df-hero{background:linear-gradient(135deg,#0c0a09 0%,#001a91 100%);padding:54px 36px;text-align:center;color:#fff}.df-hero h2{font-size:2.3em;font-weight:800;text-transform:uppercase;letter-spacing:1.5px;margin:0 0 12px;color:#fff}.df-hero p{font-size:1.1em;font-weight:300;opacity:.93;margin:0 0 22px;color:#d6d3d1}.df-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px}.df-badge{background:rgba(91,120,255,.18);border:1px solid #5b78ff;color:#99abff;padding:7px 16px;border-radius:18px;font-size:.8em;font-weight:600}.df-stats{display:flex;flex-wrap:wrap;background:#1c1917}.df-stat{flex:1 1 200px;text-align:center;padding:26px 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class=\"df-hero\"\u003e\n  \u003ch2\u003eProline X Professional 8\" Ported\u003c\/h2\u003e\n  \u003cp\u003eOne 8W7AE-3 in a front-firing box, vented at 34.5 Hz on a three-layer flush-mount baffle\u003c\/p\u003e\n  \u003cdiv class=\"df-badges\"\u003e\n    \u003cspan class=\"df-badge\"\u003e1.25 cu ft net\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eTuned 34.5 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eF3 28.8 Hz\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003e2.25\" three-layer baffle\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eCut for the 8W7AE-3\u003c\/span\u003e\n    \u003cspan class=\"df-badge\"\u003eBuilt in Tennessee\u003c\/span\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-stats\"\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e1.25\u003c\/span\u003e\u003cspan class=\"l\"\u003ecu ft net\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e34.5\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz tuning\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e28.8\u003c\/span\u003e\u003cspan class=\"l\"\u003eHz F3 anechoic\u003c\/span\u003e\n\u003c\/div\u003e\n  \u003cdiv class=\"df-stat\"\u003e\n\u003cspan class=\"n\"\u003e21.9\u003c\/span\u003e\u003cspan class=\"l\"\u003esq in port area\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhy this driver is vented at 34.5 Hz\u003c\/h3\u003e\n  \u003cp\u003eThe 8W7AE-3 is the 8 inch of JL Audio's W7AE line: 35.2 Hz, a Qts of 0.612, 17.4 litres of Vas, a single 3 ohm coil rated 500 W RMS and 19 mm of one-way excursion from a 6.83 inch deep motor. This cabinet gives it 1.25 cubic feet net behind a 2.25 inch three-layer baffle, vented at 34.5 Hz through a 21.9 square inch slot beside the woofer, for an anechoic F3 of 28.8 Hz in a 30 by 14 by 12 inch front-firing box.\u003c\/p\u003e\n  \u003cp\u003eSealed, the 8W7AE wants room it rarely gets: JL's own 0.875 cubic foot box is a Qtc of 0.80 with half power at 41.3 Hz, and a maximally flat box would be 1.84 cubic feet. Vented, the same driver reaches 28.8 Hz. The slot is gated at 600 W, 1.2 times JL's rating: the channel runs 20.6 m\/s against a 21.9 gate, the mouth 12.1, and the cone peaks at 14.0 of its 19 mm with the subsonic filter in place.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eWhat makes it Professional\u003c\/h3\u003e\n  \u003cdiv class=\"df-grid\"\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eThree-layer baffle, flush mount\u003c\/h4\u003e\n\u003cp\u003eThree layers of 3\/4 inch Langboard Elite make a 2.25 inch\n    front. The outer layer is routed to the flange, so the woofer sits flush with the face; the two layers behind it\n    carry the mounting hardware and the load.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eJL Audio logo acrylic\u003c\/h4\u003e\n\u003cp\u003eA glossy black acrylic insert with the JL Audio mark sits in the outer\n    layer beside the woofer. It is standard on every Professional cabinet.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eMounting\u003c\/h4\u003e\n\u003cp\u003eThreaded inserts pressed into the baffle on the published 7.390 inch bolt circle, stainless machine screws included.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003ePort gated at 600 W\u003c\/h4\u003e\n\u003cp\u003eThe 21.9 square inch slot beside the woofer is sized so the\n    channel runs 20.6 metres per second and the mouth 12.1 metres per second at 1.2 times the driver's rating, under the\n    17 metres per second where a slot starts to chuff. The channel runs 6.50 inches along its wall and turns once along the back wall for another 19.68 inches, which is why a 34.5 Hz tuning fits a 12.00 inch deep box.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhy this is a Professional build\u003c\/h4\u003e\n\u003cp\u003eThe 8W7AE-3 also builds in the Performance Optimized ported down-fire, the smaller and cheaper box. The Professional cabinet is the step up for it: a 2.25 inch three-layer baffle with the woofer flush in the outer layer, and a slot port gated at 600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat the price covers\u003c\/h4\u003e\n\u003cp\u003eEvery Professional cabinet is priced the same way, by its size: this one is 2.92 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 49 lb parcel and checkout adds nothing.\u003c\/p\u003e\n\u003c\/div\u003e\n    \u003cdiv class=\"df-card\"\u003e\n\u003ch4\u003eWhat JL Audio recommend\u003c\/h4\u003e\n\u003cp\u003eJL Audio publish a vented box for the 8W7AE at 1.00 cubic feet net, tuned to 36.8 Hz. This cabinet holds 1.25 cubic feet net and tunes to 34.5 Hz. The extra air and the lower tuning move the low corner down, which costs a little output right at their tuning and gains it below.\u003c\/p\u003e\n\u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe cabinet\u003c\/h3\u003e\n  \u003cp\u003e30.00\" W x 14.00\" H x 12.00\" D external. Two windowed braces run front to back either side of the woofer, clearing the cutout by two and a half inches. The box ships dry: polyfill detunes a ported alignment. Inside the 30 inch Professional envelope for a single 8, 14 tall and 12 inches deep. 8.5 inch frame, flush in the outer baffle layer, 6.94 inch mounting hole, 6.83 inches of mounting depth. It ships as a parcel.\u003c\/p\u003e\n  \u003cp\u003eJL prints a full parameter table for the 8W7AE-3 and it holds together: Qes 0.654 and Qms 9.5 reproduce the published Qts of 0.612, and 100 grams of moving mass on a 204 micrometre per newton suspension reproduce the 35.2 Hz resonance and 17.4 litre Vas. Frame, mounting hole, mounting depth, bolt circle and displacement are all JL's own figures; nothing on this page is an estimate. At 6.83 inches the motor is deep for an 8, and it is the reason the Performance Optimized ported wedge cannot hold this driver at its 11.75 inch height: the port that fits runs too fast.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"df-section\"\u003e\n  \u003ch3\u003eThe numbers to respect\u003c\/h3\u003e\n  \n  \u003cp\u003eSet a 27 Hz subsonic filter, 24 dB per octave. Below tuning the vent stops loading the cone; with the filter in\n  place the cone reaches 14.0 mm of its 19.0 mm at 600 W.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Proline X","offers":[{"title":"Default Title","offer_id":47336617607257,"sku":"Pro 8-P W7AE","price":403.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0689\/1389\/files\/Pro_8-P_W7AE_Front.jpg?v=1790508454","url":"https:\/\/audiointensity.com\/products\/professional-series-ported-8-enclosure-jl-audio-8w7ae-3","provider":"Audio Intensity","version":"1.0","type":"link"}