Performance Optimized Down Fire Sealed Dual 10" Enclosure | Audiomobile GT2

Proline X | Performance Optimized Down Fire Two Audiomobile GT2 2010s. Eight and a Half Inches Tall. Firing Into the Floor. A sealed dual 10 enclosure cut to the Audiomobile GT2 2010 and nothing else. The drivers face down, the cargo floor stays flat and usable, and the cabinet clears rear deck lines that a conventional dual 10 box cannot get near. 1.20 CU FT NET 8.5 IN TALL CABINET DOWN FIRE OR FORWARD FIRE FEET INCLUDED BUILT IN TULLAHOMA, TN Built for One Driver, Not for a Size Class Performance Optimized enclosures are engineered around a specific subwoofer. This one is cut to the Audiomobile GT2 2010, a 10 inch driver with 400 watts RMS of power handling, 11.9mm of one way Xmax, and only 4.25 inches of mounting depth. Those numbers are unusual together, and they are what make a cabinet this shallow possible in the first place. The GT2 2010 asks for a small chamber. Audiomobile's own minimum sealed figure is 0.50 cubic feet. This enclosure gives each driver 0.60 cubic feet of net airspace in a common chamber, which sits comfortably inside the driver's working range while keeping the cabinet down to 8.5 inches of external height. The cutouts are 9.2 inches, matched to the driver's gasket ID, and the mounting pattern comes from the actual driver rather than a spec sheet. Why Down Fire Turning the drivers toward the floor is not a styling decision. It changes what the enclosure does to the space around it and what the space around it can do to the enclosure. Boundary The Floor Is Right There The drivers radiate into a hard surface 1.75 inches away. In a trunk or cargo area that reinforcement, combined with cabin gain, is what makes a compact sealed box feel bigger than its airspace. Protection Nothing Lands on the Cone Groceries, tools, luggage, and dogs never touch a surround that is facing down. The most common cause of a damaged subwoofer in a daily driven vehicle is cargo, not power. Packaging A Flat Top You Can Use No baskets, no grilles, no protrusions. The top of the cabinet is a flat carpeted surface, which in most vehicles means you get the cargo floor back instead of building around a box. Flexibility Not Locked Into One Orientation The feet ship without predrilled holes on purpose. Mount them where your floor wants them, or leave them off entirely and run the cabinet forward firing if your install calls for it. Feet and Clearance What Ships With the Enclosure Four feet come standard with every Performance Optimized Down Fire enclosure. There is no upgrade tier and no separate accessory to buy. ABS and carbon fiber composite, machined in house on the same equipment as our terminal cups. 1.75 inches of lift, which sets the working air gap between the baffle and the floor. No predrilled mounting holes, so the enclosure is never locked into a single orientation. Set them where they suit your floor, or omit them and run forward firing. Overall height with feet installed: 10.25 inches. Cabinet alone is 8.5 inches. Keep the gap clear. The 1.75 inch space under the baffle is the air path, not empty room. A spare tire, a toolbox, or a folded moving blanket pressed against the opening will choke the output. Down fire systems that sound dead almost always have something jammed underneath them. Before You Buy: Read the Impedance The GT2 2010 runs a single 3 ohm nominal voice coil at 2.8 ohms DCR. This is not a standard car audio impedance and there is no dual 2 ohm or dual 4 ohm version of the driver. Two of them in this enclosure give you exactly two options. Parallel, 1.5 ohms nominal. Requires a 1 ohm stable monoblock. An amplifier in the 800 to 1000 watt RMS range is the clean match and the configuration we recommend. Series, 6 ohms nominal. Most amplifiers will drive 6 ohms, but output falls to roughly 40 to 50 percent of the 1 ohm rating. This is the path when your amplifier is not 1 ohm stable. Settle the amplifier question before the enclosure ships. It is the single decision that determines what this system is capable of. How It Is Built Cabinet Cut on our ShopSabre CNC from Langboard Elite MDF and assembled with V groove and dado joinery, with internal bracing and a double baffle at 1.5 inches. Every panel meets on a machined joint rather than a butt seam, so the cabinet stays rigid and puts its energy into the drivers instead of the panels. Internal height under the top panel is 6.25 inches against the driver's 4.25 inch mounting depth, so the motors clear with room to breathe. Mounting Pattern Drawn In House We have the GT2 2010 in the shop. We measured it, built the bolt circle in CAD, and the nutsert locations and the cutout are machined in the same operation from the same origin on the router. The holes cannot drift relative to each other, because the machine never re-references between them. Threaded inserts are installed and 8/32 machine screws are supplied, so the drivers can come out and go back in as many times as the build requires. Wiring and Damping The Proline X ABS and carbon fiber composite terminal cup is side mounted, which keeps the connection accessible with the enclosure sitting on its feet. Pre wired with 12 gauge OFC to both driver positions. Polyfill is installed before the enclosure leaves the shop. Finish Charcoal gray trunk liner standard, plush black available. The lasered acrylic badge mounts on the front face rather than the woofer face, so it stays visible in the down fire orientation. Fitment External dimensions are 29.5 inches wide by 8.5 inches tall by 16 inches deep, or 10.25 inches tall with the feet installed. The 8.5 inch cabinet height clears the rear deck line on most full size sedans and sits under most cargo covers. Measure the width first. At 29.5 inches this is a full width enclosure. Height is the spec that makes this design interesting, but width is the spec that decides whether it goes in your vehicle. There is no compact or behind seat version of this enclosure. Enclosure Performance Every Proline X enclosure is designed to a target alignment rather than a convenient box size. These are the sealed alignment figures for the Audiomobile GT2 2010 across the usable volume range, calculated from the published Thiele-Small parameters: Fs 27.5 Hz, Qts 0.61, Vas 1.17 cu ft. Volume Per Driver Qtc fc F3 0.50 cu ft (minimum) 1.115 50.3 Hz 37.9 Hz 0.60 cu ft (this enclosure) 1.048 47.2 Hz 36.4 Hz 0.75 cu ft (maximum practical) 0.976 44.0 Hz 35.0 Hz -3 dB 0 dB 20 30 50 100 200 Frequency (Hz) +4 -5 -10 -15 Anechoic half-space response, no cabin gain 0.60 cu ft, this enclosure 0.50 and 0.75 cu ft Read the curve honestly. The GT2 2010 has a Qts of 0.61, which means it cannot reach a textbook 0.707 Qtc in any enclosure that fits in a vehicle. You would need 3.41 cu ft per driver. At 0.60 cu ft this alignment lands at Qtc 1.048, which puts a roughly 1.5 dB lift around 47 Hz and an anechoic F3 of 36.4 Hz. That is an impact alignment, not a flat one. Loaded into a trunk or cargo floor and firing down, cabin gain fills in below the knee and the result is a punchy, high output system. If you want a flat sealed alignment above all else, this is not the driver or the enclosure for it. Run your own numbers with the Sealed Box Calculator. Full dimensions, cutout, mounting depth, and hardware details are listed under the Enclosures tab. Cut for the GT2 2010. Built in Tennessee. Order it as a bare enclosure or loaded with a matched pair of Audiomobile GT2 2010 subwoofers, wired and ready to connect. Every Performance Optimized Down Fire enclosure is built to order in Tullahoma, Tennessee. Questions on fitment or amplifier matching, call or text 707-999-3071.