Stage 2 • Sealed • Loaded • Seat Lift Required
Stage 2 Under-Seat Subwoofer Enclosure Loaded With (3) Wāvtech Thin Pro 12"s
This setup is built for Ford owners who want serious output and deep low-end bass while still keeping a clean under-seat install. Our Stage 2 sealed under-seat enclosure comes loaded with (3) Wāvtech Thin Pro 12" subs — already mounted, pre-wired, and ready to drop in.
The major difference with this setup is that it is designed around a 2.5" rear seat lift. That extra space allows us to fit three 12" subwoofers and gain the airspace needed for a much louder, lower-playing under-seat system.
Important: This enclosure requires a 2.5" rear seat lift kit. The seat lift can be purchased through CB Customs. This setup will not fit correctly without the 2.5" seat lift installed.Fitment
Built Specifically for Ford F-Series with 2.5" Rear Seat Lift
- Fits 2009–2026 F-150 and 2017–2026 Super Duty (F-250 / F-350) crew cab trucks.
- Requires a 2.5" rear seat lift kit for proper fitment.
- The 2.5" seat lift can be purchased through CB Customs.
- 3D-modeled around the factory floor, rear seat geometry, and added seat-lift clearance for a proper OEM-plus install.
- Designed for customers who want more output than a standard no-seat-lift enclosure can provide.
What’s Included
Everything That Comes With Your Stage 2 Triple 12 Loaded Setup
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Stage 2 Sealed Enclosure for (3) 12"s
Sealed under-seat enclosure built specifically for Ford crew cab trucks using a 2.5" seat lift
for added clearance and increased airspace.
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Loaded With (3) Wāvtech Thin Pro 12" Subs
Three Wāvtech Thin Pro 12s mounted and wired in-house for a loud, low-playing under-seat setup.
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Requires 2.5" Rear Seat Lift
This enclosure is designed specifically around a 2.5" rear seat lift, which can be purchased through CB Customs.
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More Airspace + More Low-End Output
The added seat-lift clearance gives the enclosure the space needed to be much louder with tons of low-end output.
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Front Integrated Acrylic Panels
Signature Stage 2 look: clean integrated acrylic on the front for a premium finish without full viewing windows.
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Optional Side Acrylic Add-On
Want more visual? Add the side acrylic option for a more finished, custom look under the seat.
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Addressable LED Lighting (Any Color)
Acrylic lighting is addressable — set it to any color and match your truck / theme.
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Black Vinyl Standard (Color Match Optional)
Stage 2 comes standard in clean black vinyl.
You can upgrade to color-matched vinyl to match your interior.
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Plug-and-Play Terminal Cup
Includes our custom 3D-printed CB Customs terminal cup so wiring is clean, reliable, and easy to connect.
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Pre-Wired, Loaded & Ready
Subs mounted, enclosure wired, and checked before it leaves our shop — built to drop in clean and work right.
Performance
Built for Serious Output and Deep Low-End Bass
This setup is built for customers who want substantially more output than a standard under-seat dual 12" setup. With (3) Wāvtech Thin Pro 12"s and the added clearance from the 2.5" rear seat lift, this enclosure has the airspace and cone area needed to get very loud while still playing deep and controlled.
The extra seat-lift height gives the enclosure more usable room, which helps create more low-end output and a bigger, stronger bass response inside the cab.
For best results we recommend a quality mono amplifier matched properly to the three Wāvtech Thin Pro 12s. If you want us to help match an amp, wiring kit, and signal integration, just message us and we’ll point you to the right setup.
Built by CB Customs
Craftsmanship, Lead Time & Warranty
- Hand-built in Weatherford, Texas — cut, assembled, upholstered, and inspected in-house.
- Designed around a 2.5" rear seat lift — built specifically for added clearance, more airspace, and higher output.
- Pre-wired & quality checked — loaded, wired, and verified before shipping/pickup.
- Built to order — lead time confirmed after purchase; tracking sent when it ships.
- Lifetime craftsmanship warranty on the enclosure itself.
- Real support — if you have questions before or after ordering, we’ve got you.
Compare CB Customs Stages
All stages are engineered for real performance. The higher the stage, the more show-level details
(acrylic, lighting, and visual flex) you get on top of the sound.
This product is a Stage 2 build.
| Feature |
Stage 1
OEM+ Clean
|
Stage 2
Acrylic Accent
|
Stage 3
Full Custom
|
Stage 5
Platinum Plus
|
|---|---|---|---|---|
| Overall look | Clean OEM-plus enclosure, no acrylic, no lighting. | OEM-plus with acrylic accent panels. Clean + premium. | Full custom acrylic face & design details. | Full show-truck treatment with acrylic window, RGB lighting & premium cosmetics. |
| Acrylic panels | None | Front acrylic accent + side accents (product-dependent). | Multiple acrylic design details. | Full acrylic window + internal acrylic bracing. |
| Acrylic viewing window | None | None (Stage 2 focuses on accent panels). | Standard viewing window (design-dependent). | Large viewing window showing subs & internals. |
| LED lighting | None | Optional add-on (when offered). | Standard internal / perimeter lighting. | Standard RGB lighting with under-seat glow. |
| Finish & upholstery | Premium carpet or vinyl in OEM-matched style. | Upgraded vinyl + acrylic accents for a premium OEM-plus look. | Multi-texture, stitched and layered show-style finish. | Highest level finish: layered vinyl, acrylic, and color-matched details. |
| Pre-wired & terminal cup | Pre-wired, subs mounted, CB Customs plug-and-play cup. | Pre-wired, subs mounted, CB Customs plug-and-play cup. | Pre-wired, subs mounted, CB Customs plug-and-play cup. | Pre-wired, subs mounted, CB Customs plug-and-play cup & final bench test. |
| Best for | Daily drivers who want clean, hidden bass. | Customers who want a premium look + serious output without going full “window & RGB”. | Show-ready daily drivers and high-end builds. | Full flex, SEMA-style builds and customers who want the absolute top tier. |
Overall look
Stage 1
Clean OEM-plus enclosure, no acrylic, no lighting.
Stage 2
Premium OEM-plus look with acrylic accent panels (this product).
Stage 3
Full custom acrylic face & design details.
Stage 5
Full show-truck treatment: window + RGB + premium cosmetics.
Acrylic & windows
Stage 1
No acrylic.
Stage 2
Acrylic accent panels (front + side accents for this listing).
Stage 3
Acrylic details + window (design-dependent).
Stage 5
Large viewing window + internal acrylic bracing.
Lighting
Stage 1
No lighting.
Stage 2
Optional add-on depending on build options.
Stage 3
Standard internal / perimeter lighting. Underglow optional.
Stage 5
Standard RGB lighting with under-seat glow.
Finish
Stage 1
Premium carpet or vinyl in OEM-matched style.
Stage 2
Upgraded vinyl + acrylic accents for a premium OEM-plus finish.
Stage 3
Multi-texture, stitched and layered show-style finish.
Stage 5
Highest level finish: layered vinyl, acrylic, and color-matched details.
Pre-wired & install
Stage 1
Pre-wired & plug-and-play cup.
Stage 2
Pre-wired, subs mounted, plug-and-play ready.
Stage 3
Pre-wired, subs mounted, quick drop-in.
Stage 5
Pre-wired, bench-tested & ready to flex.
Best for
Stage 1
Clean daily driver, hidden bass.
Stage 2
Premium look + serious output without going full “window & RGB”.
Stage 3
Show-ready daily build.
Stage 5
Full platinum, SEMA-level flex.
Quick rule of thumb: Stage 1 = clean. Stage 2 = clean + acrylic accents. Stage 3 = full custom show piece.
Stage 5 = platinum, no-compromise flex piece.
Questions?
Still not sure which stage or setup to go with?
Shoot us a text or call at (682) 516-3358, email sales@cbcustoms.net, or reach out below with your truck year and goals.