Proline X Performance Optimized Wedge Enclosure | Fits Dual Kicker Solo X 12" Subwoofers
Performance Optimized Wedge | Dual Kicker Solo X 12 Dual 12" Sealed Wedge Enclosure | Behind-Seat Wedge Design for Two Kicker Solo X L7X 12s 2.66 ft³ Gross1.13 ft³ Net / ChamberTightly Damped31.75" × 15.25" × 11.75/17.25"V-Groove / DadoBuilt in Tennessee Two Kicker Solo X 12s in a Purpose-Built Sealed Wedge A matched pair of Solo X L7X 12s is a statement system: two triple-stacked ferrite motors and two 3-inch coils of thermal capacity behind the seat. Each chamber was computed directly from Kicker's factory Thiele/Small parameters, not adapted from a generic dual 12" box. A 3/4" divider splits the box into two identical sealed chambers, 1.13 cu ft net each after driver displacement. That puts each dual 1-ohm Solo X 12 at a tightly damped Qtc of 0.61 and dual 2-ohm drivers at 0.64: firmly in the control-first zone below Butterworth, with no peaking anywhere in the passband. Behind-Seat Wedge Design Explained This is a front-firing wedge built for behind-seat and rear-wall installs. The rear panel is vertical and sits flat against the cab wall; both woofers mount on the baffle, raked back 20 degrees to follow the seat lean. Vertical Rear Panel Sits flush against the cab back wall or trunk bulkhead, so the full footprint of the box goes to airspace instead of wasted gaps. 20° Raked Baffle Matches the lean of most factory seat backs and fires both Solo X drivers forward into the cabin instead of into the seat. Chambered and Braced The 3/4" dado-locked center divider isolates each driver in its own sealed chamber and doubles as a full-height brace, killing panel resonance across the 31.75-inch span. Carpet-Wrap Ledge A recessed perimeter ledge terminates the carpet cleanly at the baffle edge for a finished, factory look. Engineered for the Kicker Solo X 12 Each chamber is built to 1.13 cubic feet net. Dual 1-ohm 49L7X121 drivers run a Qtc of 0.61 and dual 2-ohm 49L7X122 drivers run 0.64: alignments on the damped side of Butterworth, where the box and suspension keep the massive SoloX motors on a short leash. The payoff is bass with zero bloom, kick drums that hit and stop, and a gradual roll-off that in-vehicle cabin gain fills back in below the knee. Because the chambers are identical, both drivers stay perfectly matched. Alignment Numbers (Per Driver) Dual 1-Ohm: Qtc 0.61 · Fc 50 Hz · F3 59.8 Hz — Dual 2-Ohm: Qtc 0.64 · Fc 52 Hz · F3 58.8 Hz Mounting Geometry Each baffle opening is CNC-cut to 11-1/16" (Kicker spec). Mounting depth required is 10-1/8", cleared with margin at every point of the stroke, including breathing room for the vented motor. 8/32 threaded inserts pressed into the baffle backside. Sealed Alignment Response Predicted anechoic response of each Solo X 12 in its own 1.13 cu ft sealed chamber, computed from Kicker factory T/S parameters. This enclosure ships without drivers, so both coil variants are plotted; they do not load the same chamber identically. −3 dB 20305070100150200 +60−6−12−18−24 FREQUENCY · Hz LEVEL · dB D1 · Qtc 0.61, Fc 50 Hz, F3 59.8 Hz D2 · Qtc 0.64, Fc 52 Hz, F3 58.8 Hz The dashed line marks the half-power point. Roll-off below F3 is the gentle 12 dB/octave slope characteristic of sealed alignments, which cabin gain in a real vehicle substantially fills in. Run the numbers yourself with our sealed box calculator. Performance Series Construction, Driver-Specific Tuning Langboard Elite MDF Premium 3/4" MDF panels milled to documented spec. V-Groove and Dado Joinery CNC-cut V-grooves at every panel intersection. Dado joints lock the raked baffle, vertical rear panel, and center divider into the side walls. Double-Layer 1.5" Front Baffle Two bonded 3/4" MDF sheets plus a trim layer at the driver mounting face. Two Solo X 12s put serious mechanical load into the baffle at 4000 combined watts; it does not flex. Pre-Wired Terminal Cup Proline X ABS/carbon-fiber composite terminal cup, side-mounted, with 12 gauge OFC pre-wired. Finish and Trim Plush Black Carpet Every enclosure ships wrapped in plush black automotive carpet, the standard finish for the PO Wedge line. Black Acrylic Insert The signature Proline X acrylic insert comes in black. Box-Only This listing is box-only. Bring your own pair of Solo X 12s. Wiring Two Kicker Solo X 12s to Your Amplifier Kicker recommends 1000-2000 watts RMS per Solo X 12, so plan 2000-4000 watts RMS of clean system power across the pair at your wired impedance. Match both drivers to the same coil configuration so the pair loads and wires symmetrically; the tight damping keeps cone travel controlled through the passband. Built in Tennessee, Backed by Audio Intensity Manufactured in Tullahoma, Tennessee on our ShopSabre CNC equipment. 1-year limited warranty. Call or text 931-563-5151. Dual Kicker Solo X 12s: Tight, Controlled Power, Twice Over Two identical 1.13 cubic foot sealed chambers, solved from factory T/S for a tightly damped alignment. Double the cone area, zero bloom, in a wedge that disappears behind the seat.