Professional Series Ported Dual 12" Enclosure | Sony XS-W124ES

Both drivers share one chamber and one port rather than sitting in separate boxes, so the pair works against the whole volume and the port is sized for the pair rather than doubled. The port carries 32.6 square inches of area at 35.0 Hz, and the design power for the velocity and excursion checks is 1200 W for the pair. Passband ripple holds at 2.98 dB across the tuning, with F3 at 36.9 Hz. Tuning is chosen for in-car response rather than an anechoic curve: a vehicle adds roughly 12 dB per octave below about 45 Hz, and this tuning is where that sum comes out flattest across 25 to 60 Hz.

Every driver is run through the Performance Optimized wedge and down-fire before this chassis; the Professional box is where a driver lands when that smaller envelope, 30 inches wide and 18 inches deep with a triangular side port, cannot give it what it needs at its rated power. The XS-W124ES does not fit that envelope at all: builds. This box is the chassis with the width, depth and port to carry it. An under-ported box does not fail quietly. Air speed at the mouth rises with power; past the chuff line the flow turns turbulent and the port is audible on every note. The turbulence also chokes the port, so the box behaves as if it were tuned higher than it is, loses output near tuning, and lets the cone travel further below tuning than the design allows. This chassis is a full-size front-firing box on a 2.25 inch baffle built from three 3/4 inch layers with the woofer flush-mounted in the outer layer, a Sony logo acrylic, and a port and excursion budget checked at 1200 W. It carries a 2 year warranty against 1.

Threaded inserts pressed into the baffle on the published 12.126 inch bolt circle, stainless machine screws included. The inserts are in the baffle when it arrives; the machine screws are in the terminal cup bag.

Yes, at 28 Hz, 24 dB per octave. Below tuning a vented box stops loading the cone and excursion runs away toward DC. With the filter in place this cabinet puts the Sony XS-W124ES at 88 percent of its usable travel at 1200 W.

The two alignments converge at the bottom of the band on this driver rather than crossing cleanly, so there is no meaningful subsonic advantage either way. Above 25 Hz the vent is the louder of the two for the same power. The Performance Graphs tab plots this cabinet, 2.39 cubic feet vented at 35.0 Hz, against Sony's recommended sealed box, 0.84 cu ft per driver, 1.68 cu ft for the pair, so you can judge it yourself.

It is a vertical slot beside the woofer, the full height of the cavity, 2.25 inches wide and 32.6 square inches. It runs 6.50 inches to the back wall and turns once along it for 9.46 inches; the fold costs about 1.5 Hz and the port is cut for it. The channel runs at 20.8 metres per second at 1200 W, 49 percent of its turbulence limit, and the mouth edges carry a 1/2 inch roundover so the air leaves the face at 13.5 metres per second against the 17 metres per second threshold where a slot starts to chuff.

57 lb, 40.00" W x 16.00" H x 12.50" D external. It ships as a UPS parcel; the price includes shipping in the 48 states. This cabinet is 4.63 cubic feet outside. Delivery to the 48 states is inside the price; it ships as a 57 lb parcel and checkout adds nothing. The Performance Optimized 12 inch ported wedge is $399.99. The $80 difference is the larger box and the port this driver needs to run at its rating. Do not add polyfill; it ships dry on purpose.

No. This is an enclosure only, cut for the Sony XS-W124ES specifically: the 11.125 inch cutout, the 5.882 inch mounting depth allowance and the 2.39 cubic foot alignment all come from Sony's published parameters. It fits both coil versions; the alignment published here is the SVC. Bring your own driver.