Performance Optimized Down Fire Wide Sealed Dual 12" Shallow Sub Enclosure ResoNix GUS-12 · Dual 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 9.875 inches; this one is 41 by 14 by 8.125. Spreading the airspace along 11 more inches lets the cabinet stand 1.75 inches lower, and at 14 inches deep it is 1 inch shallower front to back, about the minimum a 12 inch frame needs.

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 9.875 inches and holds 0.75 cubic feet net per chamber; this one is 41 by 14 by 8.125 inches and holds 0.756 cubic feet net per chamber.

The airspace is matched, so the alignment is effectively the same. The choice is about the shape of your space: the standard box when length is limited, this one when height or depth is the limit and you have 41 inches of run.

The free-air resonance. The GUS-12 measures 14.5 Hz, which is exceptionally low for any 12 inch subwoofer and remarkable for one with a 4.539 inch mounting depth. A sealed enclosure always raises the system corner above the driver's Fs, so a low starting point is what makes deep extension possible in a small box.

Combined with a Qts of 0.28, the driver has the motor control to reach a well damped alignment in three quarters of a cubic foot per chamber: Qtc 0.718 with F3 at 36.7 Hz on the D4, Qtc 0.670 with F3 at 36.8 Hz on the D2.

One side-mounted Proline X terminal cup with a single pair of posts, pre-wired in 12 gauge OFC to both driver positions in parallel. You do not wire the two chambers separately at the amplifier.

Each GUS-12 is dual voice coil: the D2 gives 1 ohm in parallel or 4 in series, the D4 gives 2 ohms parallel or 8 series. Two drivers in parallel through the cup halve that again, so a pair of D4 drivers wired parallel presents a 1 ohm load. Use two of the same coil, wire them identically, and confirm the load against your amplifier's minimum stable impedance.

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 at both driver positions. Setting a down fire GUS enclosure flat on the floor would restrict the drivers and compromise output and mechanical safety. The standoffs are a required part of the design, not an accessory.

800 watts RMS per driver, 1600 watts combined, 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.

At 1600 watts plan on adequate alternator output, battery capacity, and correctly sized power and ground cable. ResoNix also notes these drivers stay composed right up to their limits, so it will not always be obvious when you are pushing too hard.

V-groove and dado joinery, CNC cut on ShopSabre routers from Langboard Elite MDF, which keeps both chambers airtight under sustained pressure cycling. The chamber divider is a full-height bonded 3/4 inch panel that also ties the walls together across the 41 inch span. Corners are square.

Front baffles are double layer at 1.5 inches at both positions, outer layer machined as a flush recess, with 8/32 threaded inserts and stainless machine screws. Polyfill is installed as a light wall lining in each chamber, 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. ResoNix GUS-12 subwoofers are purchased directly from ResoNix Sound Solutions. The cutouts and mounting depth are direct fit at both positions; use two of the same coil configuration.