.po-desc { --po-dark: #0f172a; --po-deep: #0e7490; --po-accent: #06b6d4; --po-tint: #f0f9ff; --po-line: #cfe8f3; --po-text: #1a2233; --po-muted: #4a5568; max-width: 1200px; margin: 0 auto; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--po-text) !important; line-height: 1.6; } .po-desc * { box-sizing: border-box; } .po-hero { background: linear-gradient(135deg, var(--po-dark) 0%, #134e63 55%, var(--po-deep) 100%); color: #fff !important; padding: 56px 44px; border-radius: 14px; text-align: center; } .po-hero .po-eyebrow { display: inline-block; font-size: 13px; letter-spacing: 2.5px; text-transform: uppercase; color: #7dd3fc !important; font-weight: 700; margin-bottom: 16px; } .po-hero h2 { font-size: 34px; line-height: 1.2; margin: 0 0 14px; color: #fff !important; font-weight: 800; } .po-hero p { font-size: 18px; color: #d6f0fa !important; max-width: 760px; margin: 0 auto; } .po-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 22px; } .po-badge { background: rgba(255,255,255,0.12); border: 1px solid rgba(125,211,252,0.5); color: #d6f0fa !important; font-size: 12.5px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; padding: 7px 14px; border-radius: 999px; } .po-section { background: #ffffff; padding: 40px 44px; margin-top: 26px; border-radius: 14px; border: 1px solid var(--po-line); } .po-section.tint { background: var(--po-tint); } .po-section h3 { font-size: 25px; margin: 0 0 18px; color: var(--po-deep) !important; font-weight: 800; } .po-section p { font-size: 16.5px; color: var(--po-text) !important; margin: 0 0 16px; } .po-section p:last-child { margin-bottom: 0; } .po-highlight { border-left: 4px solid var(--po-accent); background: #ecfbff; padding: 20px 24px; border-radius: 0 10px 10px 0; margin: 22px 0 0; } .po-highlight p { margin: 0; font-size: 16px; } .po-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 24px; } @media (max-width: 720px) { .po-grid { grid-template-columns: 1fr; } } .po-card { background: #ffffff; border: 1px solid var(--po-line); border-radius: 12px; padding: 26px; } .po-card-label { display: inline-block; font-size: 11.5px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--po-accent) !important; font-weight: 700; margin-bottom: 10px; } .po-card h4 { font-size: 18.5px; margin: 0 0 12px; color: var(--po-deep) !important; font-weight: 700; } .po-card-divider { width: 42px; height: 3px; background: var(--po-accent); border-radius: 2px; margin: 0 0 14px; } .po-card p { font-size: 15.5px; color: var(--po-muted) !important; margin: 0; } .po-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 22px; } @media (max-width: 720px) { .po-stats { grid-template-columns: 1fr; } } .po-stat-cell { background: linear-gradient(160deg, #134e63, var(--po-deep)); color: #fff !important; border-radius: 12px; padding: 24px 20px; text-align: center; } .po-stat-cell .num { display: block; font-size: 30px; font-weight: 800; line-height: 1.1; color: #fff !important; } .po-stat-cell .unit { display: block; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: #a5e3f7 !important; margin-top: 8px; } .po-cta { background: linear-gradient(135deg, var(--po-deep) 0%, #134e63 50%, var(--po-dark) 100%); color: #fff !important; padding: 44px; border-radius: 14px; text-align: center; margin-top: 26px; } .po-cta h3 { color: #fff !important; font-size: 24px; margin: 0 0 12px; font-weight: 800; } .po-cta p { color: #d6f0fa !important; font-size: 16.5px; margin: 0 auto; max-width: 680px; } Proline X Performance Optimized Series Sealed 12" Enclosure | Image Dynamics IDQ12 V4 One driver, one airspace, zero compromise. This driver-specific sealed enclosure is CNC-cut around the Image Dynamics IDQ12 V4's published parameters, giving one of the most musical 12s in car audio exactly the box it was engineered for. Driver-Specific CNC-Cut in Tennessee Pre-Wired 1-Year Warranty Engineered Around the IDQ12 V4 The Image Dynamics IDQ12 V4 is a sealed-box subwoofer by design, with an EBP of 40 that tells you exactly where it belongs. This enclosure gives it 1.4 cubic feet of net internal volume, the extended portion of the IDQ12's sealed window. Compared to the tighter 1.0 cubic foot alignment, that buys deeper bass extension while preserving the transient accuracy and tonal neutrality that built the IDQ Series' sound quality reputation. The baffle is cut for the IDQ12 V4's 10.87 inch cutout, the 10.5 inch cabinet depth clears the driver's 5.91 inch mounting depth comfortably, and polyfill comes pre-installed so the enclosure performs as modeled the day it arrives. 1.4 ft³Net Internal Volume 24x15x10.5External Inches (WxHxD) 500WRMS (IDQ12 V4) Performance Optimized Construction Every Performance Optimized enclosure is CNC-cut from Langboard Elite MDF on our ShopSabre routers in Tullahoma, Tennessee, with precision V-groove and dado joinery for panel alignment and long-term sealed integrity. The baffle carries 8/32 threaded inserts matched to the IDQ12 V4's published mounting pattern, with stainless steel machine screws included, so the driver bolts down with real hardware instead of wood screws. Connections run through the Proline X ABS and carbon fiber composite terminal cup with stainless hardware and copper ring terminals, pre-wired with 12-gauge OFC to the driver position. Drop the sub in, land two wires at the cup, and the install is done. This is the same driver-specific approach as our Professional Series: airspace, cutout, and hardware locked to one driver, the Image Dynamics IDQ12 V4, rather than averaged across a class of 12s. Finish It Your Way The enclosure comes wrapped in Dark Gray Trunkliner as standard, with Plush Black carpet available as an upgrade. The front baffle accepts a colored acrylic insert in Black, Blue, Red, or White to match the build, or can be ordered without the insert for a clean, blacked-out face at a reduced price. Order the box on its own if you already have your driver, or bundle it with an IDQ12 V4 in Dual 2-ohm or Dual 4-ohm, and we ship everything together. A Dual 2-ohm driver wires to 1 ohm or 4 ohms; a Dual 4-ohm driver wires to 2 ohms or 8 ohms. Airspace 1.4 Cubic Feet, Driver-Matched The extended end of the IDQ12 V4's sealed window, set against Image Dynamics' published parameters for deeper extension. Joinery V-Groove + Dado Construction CNC-cut Langboard Elite MDF with precision joinery for rigid panels and an airtight sealed cabinet that stays that way. Hardware 8/32 Threaded Inserts Matched to the IDQ12 V4 mounting pattern with stainless machine screws included. Real fasteners, repeatable torque. Wiring Pre-Wired Terminal Cup Proline X ABS and carbon fiber composite cup with stainless hardware and copper ring terminals, pre-wired in 12-gauge OFC. Style Acrylic Insert Options Black, Blue, Red, or White front acrylic to match the build, or skip the insert for a blacked-out baffle. Bundles Box Only or Loaded Order the enclosure alone or bundled with an IDQ12 V4 driver in Dual 2-ohm or Dual 4-ohm. The Box the IDQ12 Deserves Precision airspace, real hardware, and pre-wired connections, built around one driver and cut on CNC in Tennessee. Give the IDQ12 V4 500 clean watts and the right 1.4 cubic feet, and let it do what it was engineered to do.
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