Need something that does not exist? This is the stuff we build.

Paisley Acrylic + LED Laser Project

Laser-cut acrylic with blue-purple LED backlighting and a paisley pattern was built by SMS to match the interior theme instead of dropping a generic light panel into the build.

Dual-Layer Multi-Color 8-Inch Speaker Grilles

A pair of dual-layer honeycomb speaker grilles was built for 8-inch speakers when the finished speaker treatment needed more than an off-the-shelf grille.

Custom Enclosure + OEM-Color Paint Match

The enclosure was going to stay visible in the truck, so it became part of the finish. SMS built it for two KICKER CompQ 10-inch subwoofers, then Kandyman Mike paint matched it to the truck's OEM exterior color.

Turn a 6×8 / 5×7 Factory Opening into a 6.5-Inch Speaker Mount

The factory opening and the speaker you want to use are not always the same shape. This SMS Precision adapter gives a 6.5-inch speaker a purpose-built mounting solution in a 6×8 / 5×7 application.

KICKER Trunk Build + Carbon-Fiber Engraved Plexi

Dual CompQ 10s, LX-Series amplifiers, carbon-fiber engraved plexi, hexagon details tied to the custom door-pod grilles, and a NO-LI 30Ah battery upgrade were built into one finished trunk layout.

Make the Port Part of the Design

The enclosure was built for a pair of 12-inch KICKER CompQ subwoofers, with the port shape inspired by the Cadillac logo instead of treating the port as an afterthought.

Eight 10s, Double-Layer Construction and a Finished Face

The Tahoe enclosure was built to house eight 10-inch subwoofers with double-layer construction, then finished with a custom color-matched liner and Camaster CNC engraving.

6×9 Speakers, 8-Inch Lids — Make the Two Work Together

Cicada RR3T 6×9-inch speakers were modified to fit the Harley's 8-inch lids and finished with custom acrylic covers.

Four Subs in a Tight Behind-Seat Space

The available space did not disappear just because the customer wanted four woofers. This enclosure was shaped for four MMATS Dreadnaut 6.5-inch subwoofers in a tight behind-seat installation.

Four Dreadnaut 8s + KICKER Warhorse

The enclosure was built to house four MMATS Dreadnaut 8-inch subwoofers powered by a KICKER Warhorse. An LMI seat lift is part of the fitment because the stock seat height does not provide the room this package needs.

Amp Racks, Battery Boxes, Stunt Wall & Bandpass

This was never one fabricated part. The amp racks and battery boxes were built with the stunt wall and bandpass enclosure as one larger Jeep project.

Three 15s Need Structure, Not Just More Wood

This in-house enclosure for three ZV6 15-inch subwoofers uses cross-sectional bracing, double-layer construction and a triple baffle, then leaves the construction visible with a stained finish.

The Subs Stayed. The Prefab Box Did Not.

The pair of KICKER L7S 15-inch subwoofers came out of a prefab enclosure and went into a custom SMS enclosure built around the drivers and vehicle.

Sealed Dual-10 + Liner + CNC Engraving

A sealed enclosure can still be finished like a custom part. This dual-10 SQL-style build was sprayed with liner and finished with CNC engraving.

Custom Enclosure for Four 10-Inch Subwoofers

Four 10-inch subwoofers were packaged into this Dodge Charger with a custom enclosure built and tuned at SMS Car Audio.

Give the Batteries a Real Place to Live

Limitless Lithium NO-LI 12Ah batteries were installed in custom battery mounts rather than left as loose electrical hardware in the build.

Start of the Custom Console

This photo documents the beginning of the Stack Fabrication console work for the Leprechaun Jeep—not a finished piece presented as complete.

Use the Angles to Get the Airspace Back

The client needed as much airspace as possible in a tight area, so the enclosure follows multiple angles instead of wasting the shape of the available space.

4th-Order with 3/4-Inch Plexi Windows

The fourth-order enclosure was designed and built in-house, then finished with laser-engraved 3/4-inch plexiglass windows so the construction stayed part of the presentation.

Sixth-Order Blow-Through Progress

This is fabrication progress on the Nissan Hardbody sixth-order blow-through—not a finished box photo. The enclosure itself becomes a major part of how the cab and bed work together.

Four 8s Under the Seat, Then Finish the Box Like It Belongs There

The Denali enclosure fits four 8-inch subwoofers under the seat and was finished with LED lighting, acrylic and inlay work, Denali vinyl and laser engraving.

Use the Dead Space Behind the Seat

The amplifier rack was built to live behind the seat of this 2006 Chevy Silverado Extended Cab so the equipment had a clean home without wasting usable cab space.

Build the Bass, Keep Room for the Chairs

The downfire enclosure was built for the Wrangler while leaving just enough cargo room for the chairs the customer still needed for the car show.

A Vehicle-Built Enclosure Instead of Another Generic Box

This Caprice came to SMS for a new subwoofer enclosure built for the vehicle and finished as part of the installation.

Land Cruiser Dual 18 Sixth-Order Enclosure

Dual KICKER L7X Bass Enclosure

3D-Printed Speaker Brackets

Custom Bass-Knob Plates

Engraved Acrylic Enclosure Panels