Find the Right Subwoofer Enclosure
Behind-seat truck boxes, loaded systems with the driver already mounted, and enclosures cut for one specific subwoofer. Every Proline X box is CNC cut to order in our Tullahoma, Tennessee shop and matched to the driver it houses, so the box and the sub work as one system instead of two parts that happen to fit. Do not see a box for your woofer? Email us and we will spec one for it.
Email Us About Your SubwooferTruck and Vehicle Specific Enclosures
Behind-seat and underseat enclosures engineered for one cab and one model year range. These are the boxes we build most, and they fit without trimming, shimming, or losing your seat travel. Check the year range on the listing before ordering, because the platforms changed and the boxes are not interchangeable.
Ford F-150Behind seat and underseat, 2015 to 202616 enclosures
Ford F-250 and Super DutyBehind seat direct fit12 enclosures
All Ford EnclosuresEvery Ford application we build19 enclosures
Ford MaverickDirect fit2 enclosures
Ford BroncoDirect fit1 enclosure
ToyotaDirect fit3 enclosures
Building a truck we do not list yet? Email us the year, cab, and driver and we will quote a one off. Prefer to talk it through? Call 931-563-5151.
Email Us About Your VehicleShop by Your Subwoofer
The fastest route if you already own the driver. These enclosures are built around published Thiele Small parameters for each specific subwoofer, with net volume, port tuning where applicable, and mounting depth matched to that model rather than approximated from a generic size chart. We are also the only enclosure builder cutting boxes for the ResoNix GUS.
JL AudioW7AE, W3 and TW3 Series64 enclosures
KickerSolo-X, CompQ and Comp VX56 enclosures
Image DynamicsIDMAX, IDQ and ID Series41 enclosures
Wavtech thinPROShallow mount 10 and 12 inch16 enclosures
AudiomobileGT2, Evo and Encore6 enclosures
ResoNix GUSGUS-10, 12 and 15, single and dual17 enclosures
Sundown AudioSA Series27 enclosures
Prodigy AudioNB2, NB3 and NB523 enclosures
Arc AudioSW, A Series and X241 enclosures
Rockford FosgatePunch P3 and Power T1, standard and shallow44 enclosures
AlpineR2 Series and RS-W10 shallow mount18 enclosures
PowerBassXL, 2XL and 3XL Series48 enclosures
HertzMille Pro MP and MPS Series6 enclosures
MorelUltimo PowerSlim and Ultimo SCX12 enclosures
AudiofrogGB10 and GB12, single and dual7 enclosures
Diamond AudioDMD Slim Series3 enclosures
FocalFlax Evo shallow mount1 enclosure
Stereo Integrity12 inch SQL Series13 enclosures
Ground ZeroRadioactive, Iridium and Hydrogen10 enclosures
NVXVCW12v3 and VCW15v32 enclosures
One AudioRSq3, single and dual2 enclosures
Sony Mobile ESXS-W104ES2 enclosures
Digital DesignsPorted Professional Series24 enclosures
Skar AudioEVL 12
Do Not See an Enclosure for Your Woofer? Email Us.
We run the routers ourselves, so the catalog is not the limit. We can cut a variant that is not listed, including a different net volume or a different cutout diameter. Send your subwoofer brand and model, how many you are running, your vehicle, and the space you have to work with, and we will come back with an alignment and a price. Most replies go out within 24 hours, Monday through Friday.
Shop by Enclosure Type
Loaded means the subwoofer arrives already mounted and wired, so it is ready for an amplifier out of the box. Sealed gives you a shallower rolloff and tighter transient response in a smaller cabinet. Ported trades size for output near the tuning frequency. Unsure which your driver wants? Divide its resonant frequency by its electrical Q and run the result through our EBP calculator.
Loaded EnclosuresSubwoofer mounted and wired, ready to run25 enclosures
SealedAccurate, compact, SQ favorite286 enclosures
PortedHigher output, deeper extension252 enclosures
DownfireFires toward the floor, ABS feet included167 enclosures
WedgeAngled to sit flush against a wall or seat back273 enclosures
UniversalFits a range of drivers26 enclosures
Shop by Subwoofer Size
Useful when you know the size you have space for but have not settled on a driver yet. Remember that cone diameter alone does not determine box volume. Two 12 inch subwoofers can call for very different enclosures depending on their compliance and resonance.
10 Inch Enclosures222 enclosures
12 Inch Enclosures211 enclosures
15 Inch Enclosures48 enclosures
8 Inch Enclosures47 enclosures
6.5 Inch Enclosures4 enclosures
Know the size but not seeing a box that suits the woofer you own? Email us the model and we will tell you what it wants.
Email Us About Your SubwooferShop by Proline X Series
Four series, each a different construction approach. Performance is universal fit by size. Performance Optimized and Professional are cut for one specific driver. Micro is stack fabricated for shallow mount subwoofers. If you already know the line you want, start here.
Work Out the Numbers Yourself
Free tools we built for our own bench work. No signup, no email required.