MTX 5510-44 Box: Sealed 10" Wedge Enclosure
$ 289.99
In Stock
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Sealed and Ported, Cut Per Driver
MTX Audio Subwoofer Boxes and Enclosures
Wedge enclosures cut for MTX Audio subwoofers, CNC-machined in Tullahoma, Tennessee.
Sealed and Ported, Cut Per Driver
Sealed and ported MTX Audio wedge enclosures from 10 to 15 inch, each tuned for the driver it names. More being added.
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MTX 5510-22 Box: Sealed 10" Wedge Enclosure
$ 289.99
In Stock
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MTX 3510-04S Box: Sealed 10" Wedge Enclosure
$ 289.99
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MTX 3510-02 Box: Sealed 10" Wedge Enclosure
$ 289.99
In Stock
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Sealed or Ported for an MTX Driver
On most brands this is a genuine toss-up. On MTX it is not, and the reason is the driver rather than the cabinet: a total Q of 0.58 or above means a sealed box is already working against the alignment before you shrink it. Here is the same driver in both.
| Sealed wedge | Ported wedge | |
|---|---|---|
| Extension, same driver | F3 38.9 to 45.0 Hz | F3 29.9 to 35.8 Hz, 7 to 11 Hz lower |
| System Q we publish | Qtc 0.91 to 1.05, firm and punchy | Tuned 30 to 34 Hz instead |
| Output around tuning | Lower | Higher, often markedly |
| Roll-off below | Gentle, about 12 dB per octave | Steep, about 24 dB per octave |
| Cabinet size | Smaller, 0.70 to 1.25 cu ft net | Larger, 0.97 to 2.56 cu ft net |
| Polyfill | Ships lined, do not add more | None, and do not add any |
| Pick it when | The space is tight, or you want the firmer character | You have the room. On MTX this is the default |
Shared across both: Langboard Elite MDF cut on ShopSabre routers in Tullahoma, Tennessee. Plush black carpet. A gloss black acrylic baffle insert, or a plain baffle for twenty dollars less. One side-mounted Proline X ABS and carbon fibre terminal cup with stainless hardware, pre-wired in 12-gauge OFC. A threaded insert kit with stainless machine screws, not pre-installed, because MTX publishes no bolt hole circle for any model.
Every MTX Line We Cut For
MTX names its subwoofers by line and coil, and the coil is part of the model number. Each cabinet here is cut for one of them. If the model you own is not listed yet, the cabinet is still cuttable, because everything is machined to order.
35 Series, including the 04S shallow
The 3510-02, 3510-04, 3512-02 and 3512-04 all take a ported wedge, and the 3510-02 has a sealed one as well. The 3510-04S and 3512-04S are the shallow-mount versions with their own frame and mounting depth, so they get their own cabinets rather than sharing with the deep models. The 3510-04S has both alignments.
55 Series
The 5510-22, 5510-44, 5512-22 and 5512-44 are the dual-coil 10s and 12s. All four have a ported wedge, and the 5510-22, 5510-44 and 5512-22 have sealed too. The 55 Series 15s are the one gap here and it is deliberate: at the size a Proline X wedge can reach, their total Q of around 0.8 against a Vas near 6 cubic feet produces an alignment we are not willing to sell, so they are not listed.
75 Series
The 7512-22 and 7512-44 have both alignments. The 7515-22 and 7515-44 are the only 15s here, ported, and they are the deepest-reaching cabinets in the range at 2.56 cubic feet net tuned to 30 Hz.
S65 Series and Terminator
The S6510-44 and S6512-44 take ported wedges, with sealed for the S6510-44. The TN10-04, TN12-02 and TN12-04 are the Terminator line, all ported, with sealed for the TN10-04. The Terminators are the lowest-powered drivers here at 150 to 200 watts RMS, so the cabinet does proportionally more of the work.
Where These Sit in the Range
Every MTX cabinet is a wedge in the Performance Optimized series, which is the driver-matched build on a 1.5 inch double baffle. Browse by alignment in ported enclosures or sealed enclosures, or by size in 10 inch, 12 inch and 15 inch boxes. The full catalogue is on the subwoofer box hub and the enclosure finder.
We do not carry MTX drivers, but we do stock subwoofers in the same sizes if you are still choosing: 10 inch, 12 inch and 15 inch. A monoblock amplifier is the usual pairing for any of these cabinets.
Working From a Spec Sheet
If you want to check our arithmetic, or you are weighing a driver we have not built for yet, the subwoofer airspace calculator takes MTX's published figures directly. The EBP calculator and what EBP actually tells you cover the sealed against ported question from the driver's side, and what Qes means is worth reading before trusting any published Q figure.
One warning specific to this brand. The field MTX's website labels Volume Displacement is the swept air of the cone, not the displacement of the basket that a box calculation has to subtract. On the 5510-22 that is 0.02 cubic feet against a true 0.06, so a builder taking the webpage figure at face value undersizes the box. Take it from the Tech Data Sheet's displacement row instead, and where MTX publishes none, our product page says so.
If the MTX model you own is not listed, send us the model number, the alignment you want and the space you have. We cut to order, so it is usually a question of whether the alignment is worth building rather than whether we can build it.
Total Q Is Why This Range Leans Ported
MTX runs 0.58 to 0.825 across the current line, against a Proline X catalogue median of 0.487. System Q only climbs as a sealed box shrinks, so solved honestly to a 0.707 alignment the shallowest cabinet in the whole line would be about 25 inches deep and most would be far worse. The vented wedge answers the same driver inside a cabinet a car can actually take.
We Cut the Box, You Source the Driver
We do not stock MTX Audio subwoofers. These cabinets are built to MTX's own published figures for a driver you already own or buy elsewhere, and nothing about the fit depends on where it came from. Fitment is geometry and Thiele-Small parameters, which is separate from which brands we carry.
Ported wedge
A triangular side port cut straight through with no bend, tuned between 30 and 34 Hz for the driver the cabinet names. This is where MTX's published parameters point, and it is the larger half of what we cut for the brand.
Performance Optimized
Sealed wedge
Built to MTX's own recommended sealed volume and printing the system Q it actually reaches, between 0.91 and 1.05. Firmer and punchier than a reference alignment, and smaller than the ported cabinet for the same driver.
Performance Optimized
Shallow mount, the 04S frame
The 3510-04S and 3512-04S have their own frame and mounting depth, so they get their own cabinets rather than sharing with the deep models. The 3510-04S has both alignments; the 3512-04S is ported.
Performance Optimized
Every cabinet here is Performance Optimized on a 1.5 inch double baffle and carries a 1 year limited warranty. Each product page states the MTX model it was cut for and the alignment it reaches.
Keep Reading
Supporting guides to help you design, build, and tune your system.
DecisionSealed vs Ported Subwoofer: The Data
The measured case for each alignment. On a high-Q line like MTX it comes out one way, and this is the working.
Read the guide
DecisionWhat Is EBP? Sealed vs Ported
The single number that says whether a driver wants a vented alignment, worked from figures MTX publishes.
Read the guide
ApplicationSubwoofer Airspace Calculator
Run MTX's published parameters yourself and check the net volume against the figure printed on each cabinet.
Read the guide
ApplicationPort Area Calculator
Why the ports on these cabinets look large: area is sized for the excursion the driver is rated to, not for what fits.
Read the guide
ExplainerPolyfill in a Sealed Box
What the fill does, and why the sealed MTX cabinets arrive with it already in place while the ported ones take none.
Read the guide
ApplicationSubwoofer Impedance Configurations
Every wiring configuration laid out, which matters on the dual-coil 55 and 75 Series drivers.
Read the guideMTX Audio Subwoofer Box Questions
Which MTX Audio subwoofers do these boxes fit?
Each cabinet is cut to the published parameters of one specific MTX model, named in its title. Work from the model number on the motor rather than the nominal size: MTX gives each coil its own model number and its own parameters, so the 3510-02 and the 3510-04 are different drivers that take different enclosures. The current range covers the 35 and 55 Series, the 75 Series, the S65 and the Terminator, in 10, 12 and 15 inch.
Do you sell MTX Audio subwoofers?
No. We build the enclosure to the figures MTX publishes and you source the driver. If you already own the subwoofer, that is exactly what these cabinets are for.
Should I run sealed or ported for an MTX driver?
Ported, if the space allows it. On this brand it is not a close call. The ported cabinet for a given MTX driver reaches 7 to 11 Hz lower than the sealed one and plays louder around its tuning. The trade is a larger cabinet and a steeper roll-off below tuning. Choose the sealed wedge when the space is genuinely tight or you want the firmer, punchier character.
Why do the sealed cabinets print a Qtc above 1.0?
Because that is what MTX's own recommended sealed volume produces on these drivers, and we would rather print it than hide it. Every current MTX model has a total Q of 0.58 or above, and system Q only rises as a sealed box shrinks, so a 0.707 reference alignment is out of reach at any practical size. These land between 0.91 and 1.05, which reads full and punchy rather than extended. Where MTX's recommended volume would land much above 1.1 we did not build a sealed cabinet at all.
What is each ported cabinet tuned to?
Between 30 and 34 Hz, chosen for the driver that cabinet was cut for, giving an anechoic F3 of 29.9 to 35.8 Hz. The port is a straight triangular slot in the bottom-rear corner with no bend, sized so the air leaves the mouth between 8.9 and 13.7 metres per second against the 17 metre per second threshold where a slot port starts to chuff. Port length and area produce the tuning together, so it is fixed by the cabinet and not adjustable afterwards.
Is the driver included, and are the threaded inserts installed?
No driver, and the inserts are not pre-installed. You receive the cabinet finished in plush black carpet with the acrylic baffle insert, a side-mounted pre-wired terminal cup, and a threaded insert kit with stainless machine screws. MTX publishes no bolt hole circle for any model, so set the driver in its recess, mark its holes, drill and press the inserts. Sealed cabinets arrive with their polyfill lining already in place; ported cabinets take none.
What is the warranty on these enclosures?
One year limited. Every cabinet in this collection is Performance Optimized, and that series carries a 1 year limited warranty on craftsmanship and materials from the date of purchase. The driver you fit keeps whatever warranty its own seller provides, which is a separate thing.
Subwoofer Boxes by Brand
Every box is cut to one driver's published specs. Pick the brand your subwoofer comes from.
- Alpine Subwoofer Boxes
- American Bass Subwoofer Boxes
- Ampere Audio Subwoofer Boxes
- Arc Audio Subwoofer Boxes
- Audiofrog Subwoofer Boxes
- Audiomobile Subwoofer Boxes
- Dayton Audio Subwoofer Boxes
- Deaf Bonce Subwoofer Boxes
- Diamond Audio Subwoofer Boxes
- Digital Designs Subwoofer Boxes
- Fi Car Audio Subwoofer Boxes
- Focal Subwoofer Boxes
- Ground Zero Subwoofer Boxes
- Hertz Subwoofer Boxes
- Image Dynamics Subwoofer Boxes
- JBL Subwoofer Boxes
- JL Audio Subwoofer Boxes
- Kicker Subwoofer Boxes
- Memphis Audio Subwoofer Boxes
- Morel Subwoofer Boxes
- Musway Subwoofer Boxes
- NVX Subwoofer Boxes
- One Audio Subwoofer Boxes
- PowerBass Subwoofer Boxes
- Prodigy Audio Subwoofer Boxes
- ResoNix Subwoofer Boxes
- Rockford Fosgate Subwoofer Boxes
- Skar Audio Subwoofer Boxes
- Sony Subwoofer Boxes
- Stereo Integrity Subwoofer Boxes
- Sundown Audio Subwoofer Boxes
- Wavtech Subwoofer Boxes
Not MTX, but the same size
10 Inch Subwoofers We Do Stock
We do not stock MTX drivers. If you are still choosing, these are the ten inch subwoofers we sell, and we will cut a cabinet for any of them.
Prodigy Audio
Prodigy Audio 10 inch Subwoofer | NB2 Series
$ 138.99 $ 145.99
Image Dynamics
Image Dynamics ID10 V4 10-inch Subwoofer
$ 139.99
Sony
Sony XS-W104ES Mobile ES Series 10" 4-ohm component subwoofer
$ 198.00 $ 299.99
Ground Zero
Ground Zero GZIW 10SPL 10″ high quality SPL subwoofer
$ 199.99 $ 299.99
Not MTX, but the same size
12 Inch Subwoofers We Do Stock
We do not stock MTX drivers. If you are still choosing, these are the twelve inch subwoofers we sell, and we will cut a cabinet for any of them.
Amplifiers for the System
Power for Your Subwoofer System
Monoblock amplifiers matched to the power requirements of the drivers these enclosures are built for. Buy the enclosure, match the driver, pick the right amplifier.
Last updated November 8, 2026