Overview
A large part of the audio world does not want a finished loudspeaker. DIY builders have already chosen their drivers and designed their crossovers. System integrators need shells that match a room’s joinery. Restorers need a replacement cabinet for a vintage pair whose original box has been ruined by damp or a previous owner’s router. Brands in development need shells to test three enclosure variants before committing to tooling. All of them need the same thing: a custom empty wooden speaker cabinet box built accurately to their dimensions and supplied without drivers, crossovers or wiring.
Woodsat builds exactly that. You send dimensions, an alignment, driver cut-out sizes and a finish requirement, and we return a complete empty cabinet — machined, assembled, braced, sealed, damped if requested and finished to the standard you specify. Nothing is fitted that you did not ask for, and the internal volume is calculated after bracing so the figure you designed around is the figure you actually receive.
The empty-cabinet market is often served badly. Generic boxes are sold in a handful of stock sizes with cut-outs that nearly fit, panels of unverified thickness and internal volumes that are quoted gross rather than net. That is fine for a first experiment and useless for a serious build. Our position is that an empty cabinet should be held to the same standard as an OEM production cabinet: real tolerances, documented construction and a finish that would pass on a retail product. The only difference is that the driver bay is left for you to populate.
What You Receive
| Element | Included as standard | Optional |
|---|---|---|
| Cabinet shell | Assembled, glued, square and sealed | Flat-packed kit form |
| Driver cut-outs | Machined to your specified diameters | Flush-mount recesses stepped to flange thickness |
| Terminal provision | Cut-out for your chosen terminal cup | Terminal cup supplied and fitted |
| Bracing | Internal bracing per design | Custom matrix or shelf bracing |
| Port | Machined port or vent seat where specified | Flared plastic vent supplied |
| Damping | Bare interior | Bituminous pads, felt, wadding or long-fibre wool installed |
| Finish | Sanded raw for your own finishing | Veneer, lacquer, matte, vinyl or oil |
| Hardware | None fitted | Feet, spikes, grille pins, threaded inserts |
Manufacturing Capability
| Stage | Capability | Typical control |
|---|---|---|
| Design translation | Convert sketches, DXF or a reference cabinet into production drawings | Net volume confirmed with customer |
| CNC machining | Nested panel cutting, driver bores, recesses, port and terminal cut-outs | ±0.1 mm on cut-outs |
| Joinery | Rabbet, dado, mitre-fold and dowelled construction | Square within 0.5 mm across diagonals |
| Bracing | Window, shelf and cross-brace fitment before closure | Per drawing, inspected pre-closure |
| Sealing | Full glue-line coverage and gasket seats | Airtightness checked |
| Damping | Installed by documented weight and position | Weight recorded per cabinet |
| Finishing | Raw-sanded, veneered, lacquered, painted, oiled or wrapped | Colour matched to master where applicable |
| Packing | Individually protected, corner-guarded export cartons | Drop-test validated |
Production Process
The first step is always a volume check. Customers frequently send external dimensions and a target litre figure that do not reconcile once panel thickness, bracing and port displacement are subtracted. We calculate the net internal volume and confirm it with you before machining, because a cabinet that is three litres small is a cabinet that will never hit the modelled response no matter how well it is built.
With drawings confirmed, panels are nested and machined with joinery cut in place. Assembly is dry-fitted and checked for square before glue-up. Bracing goes in before closure and is inspected, since nothing can be corrected once the final panel is on. The cabinet is then either sanded raw for customer finishing or moved into our finishing department. Every unit is inspected for squareness, cut-out accuracy, sealing and finish quality, then packed with corner protection — empty cabinets are light and awkward and take more transit damage than loaded ones.
Material Options
| Material | Character | Best for |
|---|---|---|
| MDF 18 mm | Standard for accurate, well-damped empty cabinets | Most DIY bookshelf and floorstanding builds |
| MDF 25 mm | Extra mass for high-output builds | Subwoofer and high-excursion projects |
| Baltic birch plywood | Light, stiff, attractive exposed edge | Pro-audio, portable and visible-ply designs |
| HDF | Superb substrate under gloss | Builders finishing to a high-gloss standard |
| Solid hardwood | Premium build with visible grain throughout | Boutique and showpiece projects |
| Bamboo ply | Renewable with distinctive edge appearance | Design-led and eco-conscious builds |
We are happy to mix materials within one cabinet — a plywood shell with an MDF baffle for cleaner recess machining, or a hardwood front with painted sides. Empty-cabinet customers tend to have specific opinions about materials, and we would rather build what you asked for than substitute what is convenient.
Finishes & Veneers
Empty cabinets can be supplied at any point on the finishing scale. Many DIY customers want them raw-sanded to 180 or 220 grit so they can veneer or spray at home. Others want the hard part done professionally — a full high-gloss piano-lacquer build, flat-sanded and machine-polished, which is essentially impossible to achieve in a domestic workshop — and are happy to fit their own drivers into a finished shell.
Between those extremes we offer book-matched natural veneer, matte and satin PU, textured coatings, oiled and waxed natural finishes, and vinyl or carpet wraps for utility applications. Where you are matching an existing pair or a piece of furniture, send a physical sample and we will match against it rather than working from a photograph, which is never reliable for colour.
Applications
- DIY and hobbyist builds — accurate shells for builders who own their driver and crossover choices.
- System integration — cabinets sized and finished to fit a specific room or piece of joinery.
- Vintage restoration — replacement cabinets replicating original dimensions and cut-outs.
- Prototype and development shells — multiple enclosure variants for acoustic comparison.
- Kit and trade supply — empty cabinets sold on by retailers and specialist distributors.
- Education and research — enclosures for acoustics teaching and measurement work.
- Installation and commercial projects — colour-matched shells for architectural audio.
Quality & Acoustic Control
Because the customer supplies the drivers, the cabinet has to be right first time — there is no opportunity for us to compensate downstream. Cut-out diameters are verified against your specified figures, recess depths are machined to your flange dimension, and the finished internal volume is confirmed against the design target. Airtightness is checked on sealed designs, and where we install damping the material weight and placement are recorded so a matched pair really is matched.
We also check the things that cause the most complaints in the empty-cabinet market: squareness across diagonals, panel flatness on the baffle, edge coverage of the finish, and cut-out concentricity. A driver mounted in a slightly oval cut-out will never gasket properly, and the resulting leak is usually blamed on the driver rather than the box.
Ordering Single Cabinets, Pairs and Batches
We accept single cabinets, matched pairs and trade batches. Single units suit restoration and one-off projects. Pairs are built together from the same material batch and, where veneered, from sequenced flitch so the grain relates across the two cabinets. Trade batches for retailers and distributors are produced against a fixed specification with consistent packaging and labelling, so a customer buying the same model a year apart receives the same product.
Related Resources
- Best Wood for Speaker Boxes
- Speaker Box Calculator
- Speaker Box Veneering
- MDF vs Baltic Birch Plywood Speaker Cabinets
Related Woodsat Pages
- Wooden Speaker Box Manufacturer
- Speaker Cabinet CNC Machining Service
- Custom Wooden Speaker Cabinet Manufacturer
- Wooden Speaker Enclosure Manufacturer
Frequently Asked Questions
It is a complete wooden enclosure supplied without drivers, crossovers or wiring, machined with the cut-outs you specify so you can fit your own components.
Yes. We calculate net internal volume after panel thickness, bracing and port displacement and confirm the figure with you before machining begins.
Optionally. We can install bituminous pads, felt, polyester wadding or long-fibre wool by documented weight and position, or leave the interior bare for you.
Yes. We accept single cabinets for restoration and one-off projects, matched pairs built from the same material batch, and trade batches for resale.
Yes. Send dimensions, photographs or the original cabinet and we will produce drawings that replicate the geometry and cut-outs before building.
Yes. Cabinets can be supplied raw-sanded to an agreed grit for your own veneering or spraying, or fully finished in veneer, lacquer, paint or oil.
Request a Quote
Send your dimensions, driver cut-out sizes, alignment and finish preference and we will confirm the net volume and quote.