Performance Optimized Down Fire Wide Sealed 12" Shallow Sub Enclosure ResoNix GUS-12 · Single 12" Sealed enclosure

Because some installs run out of height or depth before they run out of length. The standard ResoNix GUS-12 Down Fire cabinet is 30 by 15 by 6 inches; this one is 41 by 14 by 6.0625. Here the motor sets the height, so the wide box stands about the same, but it is 1 inch shallower front to back, about the minimum a 12 inch frame needs, and the extra length holds more air.

If you have 41 inches of run and height or depth is the limit, this is the shape. If length is the limit, the standard 30 x 15 is the better fit.

Same driver, same construction, different shape. The standard box is 30 by 15 by 6 inches and holds 0.76 cubic feet net; this one is 41 by 14 by 6.0625 inches and holds 1.008 cubic feet net.

The wide box holds more because the 4.539 inch motor sets its height, and on a longer footprint that height encloses more air. More air lowers Qtc, a softer, better damped corner. Choose the standard box when length is limited or you want the livelier alignment, this one when depth is the limit.

Acoustically it barely matters in this cabinet. The D4 lands at Qtc 0.637 with F3 at 37.1 Hz and the D2 at Qtc 0.597 with F3 at 37.7 Hz. Both share the 0.28 Qts and a near-identical 14.5 Hz resonance.

So choose on your amplifier. The D2 wired in parallel gives 1 ohm and in series gives 4; the D4 gives 2 ohms parallel and 8 series. Confirm your amplifier's minimum stable impedance before choosing.

Because ResoNix specifies a minimum clearance in front of the cone, and on a down fire enclosure the thing in front of the cone is the floor. Their requirement for the GUS-12 is 28mm between the surround and the obstruction, or 60mm measured from the baffle surface.

This cabinet ships with custom-fit standoffs machined to hold that clearance. Setting a down fire GUS enclosure flat on the floor would restrict the driver and compromise output and mechanical safety. The standoffs are a required part of the design, not an accessory.

No, and this is a deliberate feature of the GUS series. The cone uses a vented rear assembly attached to the voice coil former, which handles venting even when the pole vent is completely blocked. ResoNix states the pole vent can be fully obstructed with no negative side effects, which is why this cabinet needs no rear motor clearance allowance beyond the 0.75 inch we leave above every motor.

800 watts RMS, and not more. ResoNix states the GUS series is not deliberately underrated, and that burnt voice coils or damage from bottoming out are not covered under warranty.

ResoNix also pairs its 1.1 maximum volume with a 500 watt limit, and this cabinet sits toward that end of their range. Run a subsonic filter and treat 800 watts as a ceiling. Warning signs are mechanical noise, clacking, or a sudden loss of control.

V-groove and dado joinery, CNC cut on ShopSabre routers from Langboard Elite MDF, which keeps the cabinet airtight under sustained pressure cycling. Corners are square, the Down Fire series standard.

The front baffle is a double layer at 1.5 inches, outer layer machined as a flush recess so the driver bolts to the inner layer. A windowed U-brace ties the long panels together, polyfill is installed as a light wall lining, and custom-fit standoffs are included. Assembled and inspected in Tullahoma, Tennessee.

No. This listing is for the enclosure only, and includes the custom-fit standoffs. The ResoNix GUS-12 is purchased directly from ResoNix Sound Solutions. The cutout and mounting depth are direct fit for either the Dual 2-Ohm or Dual 4-Ohm version.