Performance Optimized · Datasheet

Performance Optimized Down Fire Sealed 10" Enclosure | Wavtech thinPRO10 Single 10" Sealed enclosure

Net volume
0.40 Cubic Feet
Max mounting depth
2.875 Inches / 72.7mm (Wavtech Spec)
Cutout
9.0625 Inches / 230mm (Wavtech Spec)
External dimensions
30 Inches W × 4.25 Inches H × 15 Inches D
Front baffle
Double-Layer 1.5" MDF | Outer Layer Flush Recess, Driver Mounts To Inner Layer
Buy at Audio Intensity
  • Alignment: 0.40 cu ft net. Qtc 0.869 / F3 41.5 Hz (-2), Qtc 0.821 / F3 44.5 Hz (-4)
  • Driver: Wavtech thinPRO10-2 (2Ω) or thinPRO10-4 (4Ω) SVC, 750W RMS / 2250W peak, 20mm Xmax, 2.875" mounting depth
  • Clearance: No rear clearance required behind the motor, 9.0625" cutout, 3/8" milled magnet relief
  • Build: Proline X V-groove and dado joinery, double-layer 1.5" front baffle with flush outer recess, 12g OFC side-mounted terminal cup
  • Cabinet: 30"W x 15"D x 4.25"H in down fire position, square corners, shortest enclosure in the Down Fire line

Technical specifications

SeriesProline X Performance Optimized Down Fire
Compatible DriverWavtech thinPRO10-2 (2Ω SVC) or thinPRO10-4 (4Ω SVC)
Enclosure TypeSealed | Down Fire Geometry | Floor-Coupled
Firing DirectionDown Firing, Driver Fires Toward Floor
External Width30 Inches
External Depth15 Inches
External Height4.25 Inches, Shortest In The Down Fire Line
Dimension ReferenceAll External Dimensions Measured In Down Fire Position
Internal Volume (Gross)0.43 Cubic Feet
Internal Volume (Net)0.40 Cubic Feet
Wavtech Preferred Sealed Volume0.35 Cubic Feet (This Cabinet Is Within 0.05)
Target System Qtc (thinPRO10-2)0.869 (Wavtech Publishes 0.86 At Their Preferred Volume)
Target System Qtc (thinPRO10-4)0.821 (Wavtech Publishes 0.81 At Their Preferred Volume)
Predicted F3 (thinPRO10-2)41.5 Hz
Predicted F3 (thinPRO10-4)44.5 Hz
Driver Fs31 Hz (-2) / 32 Hz (-4)
Driver Qts0.55 (-2) / 0.52 (-4)
Driver Qes / Qms0.62 / 4.86 (-2) | 0.59 / 4.46 (-4)
Driver Vas17 Liters / 0.60 Cubic Feet
Driver Re1.95 Ohm (-2) / 3.35 Ohm (-4)
Driver Xmax (One-Way Linear)20mm / 0.79 in
Driver Xmech (Peak-to-Peak)54mm / 2.13 in
Driver Sd341.76 cm² / 52.97 sq in
Driver Displacement0.028 Cubic Feet / 0.8 L (Published by Wavtech)
Driver Sensitivity81 dB (-2) / 82 dB (-4)
Driver Power Handling750 Watts RMS / 2250 Watts Peak
Recommended Power Range250 to 750 Watts RMS (Wavtech Spec)
Driver Voice Coil4.5 in / 114mm | 4-Layer High-Temp | Vented Polyimide Composite Former
Driver ConeHoneycomb Nomex + Glass Fiber Composite
Driver SurroundHigh-Excursion Double-Roll NBR
Driver Spider SystemDual Internal Mirrored NBR Spiders
Driver MotorFEA-Optimized Dual-Gap, Double-Stacked Strontium Magnets
Driver FrameVented Cast Aluminum
Mounting Depth Required2.875 Inches / 72.7mm (Wavtech Spec)
Rear Clearance RequiredNone / Negligible (Wavtech Spec)
Cutout Diameter9.0625 Inches / 230mm (Wavtech Spec)
Driver Overall Diameter With Gasket10.8125 Inches / 274.5mm (Wavtech Spec)
MaterialLangboard Elite 3/4" MDF
ConstructionShopSabre CNC / Perimeter Cross-Brace
Panel Thickness3/4 Inch
Front Baffle ConstructionDouble-Layer 1.5" MDF | Outer Layer Flush Recess, Driver Mounts To Inner Layer
Magnet Relief3/8" Deep Milled Relief In Opposite Panel
JoineryV-Groove and Dado (CNC-Cut)
Corner ProfileSquare (Down Fire Series Standard)
Voice Coil ConfigurationSingle Voice Coil, Impedance Set By Driver Model
Driver Mounting8/32 Threaded Inserts | Stainless Steel Machine Screws Included
Terminal CupProline X ABS/Carbon Fiber Composite | Side Mounted | 12g OFC Pre-Wired
DampingPolyfill Pre-Installed
Carpet FinishPlush Black
Weight24 lb
Bundle OptionsEnclosure Only (Bring Your Own thinPRO10-2 or thinPRO10-4)
Warranty1-Year Limited (Enclosure)
Built InTullahoma, Tennessee, USA

Performance in this enclosure

Net airspace
0.40
cu ft per chamber
System Qtc
0.82–0.87
sealed
Half power
41.5–44.5
Hz · F3
Xmax at
1312
W RMS · no filter
With 25 Hz subsonic
1446
W RMS · +10%
Amplifier
250–750
W RMS recommended
This enclosure holds 0.40 cu ft net per chamber. In it the Wavtech thinPRO10 runs a system Qtc of 0.82–0.87 with half power at 41.5–44.5 Hz, and the cone reaches its 20.0 mm travel limit at 1312 W, above the driver’s 750 W thermal rating, so heat stops you before travel does. Run a subsonic filter at 25 Hz and that becomes 1446 W — +133 W, or 10 percent more power for the same 20.0 mm of travel.

01Is it a sealed driver?

Efficiency bandwidth product places the motor before anything else is decided.

EBP = Fs ÷ Qes = 50.0–54.2
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 4 54.2 2 50.0
4 · EBP 54.22 · EBP 50.0
At 50.0–54.2 the thinPRO10 sits in the transition band, not the sealed band. That is not a mismatch: a transition motor works in either alignment, and sealed buys a smaller box and a gentler roll-off at the cost of some low-end output. Stage 02 shows what this airspace actually does with it.

02What the box does to it

0.40 cu ft against a 17.0 L Vas.

α = Vas ÷ Vb = 1.50  ·  Fc = Fs√(α+1) = 49–51 Hz  ·  Qtc = 0.82–0.87
20 30 50 70 100 150 200 +6 +0 -6 -12 -18 -24 FREQUENCY · Hz LEVEL · dB −3 dB
4 · Qtc 0.82, Fc 51 Hz, F3 44.5 Hz2 · Qtc 0.87, Fc 49 Hz, F3 41.5 Hz
The box lifts resonance from 32.0 Hz free-air to 49–51 Hz and half power lands at 41.5–44.5 Hz, anechoic, before any cabin gain. This enclosure ships without a driver, so both coil variants the maker offers are plotted. They do not load the same box the same way.

03The watts that reach Xmax (in this enclosure)

Travel scales with the square root of power, so there is one wattage that puts the cone exactly on 20.0 mm — and a bigger one once a subsonic filter stops it wasting travel below the passband.

PXmax = 1312–1358 W unfiltered  →  1446–1523 W with a 25 Hz subsonic
20 30 50 70 100 150 200 0 8 16 24 FREQUENCY · Hz CONE TRAVEL · mm PAST LINEAR TRAVEL · Xmax 20.0 mm 1312 W reaches Xmax here
4 · 1358 W, no filter2 · 1312 W, no filter4 · 1523 W with subsonic at 25 Hz, 24 dB/oct2 · 1446 W with subsonic at 25 Hz, 24 dB/octXmax 20.0 mm one-way
Every trace touches the limit and no further, because each is drawn at the exact power that puts that coil on 20.0 mm. Unfiltered that is 1312 W, reached first at 29 Hz. It sits above the 750 W the driver can take thermally, so the voice coil gives up before the suspension does. The dashed traces are the same driver behind a subsonic filter at 25 Hz, 24 dB/oct: stopping the cone wasting travel below the passband lets it take 1446 W before hitting the same 20.0 mm. That is 10 percent more amplifier for the price of one filter setting.
ParamValueUnitNote
Fs32.00Hzfree-air resonance
Qts0.520 / 0.5504 / 2
Vas17.00 / 17.00Lequivalent compliance
Sd341.8cm²effective piston area
Xmax20mmone-way linear travel
Pe750Wcontinuous RMS
SPL81.6dB1 W / 1 m, derived from T/S

Driver parameters as published by Wavtech thinPRO10 owner's manual rev2. Curves computed against this enclosure’s actual net airspace.

Installer's take

4.25 inches. That is the shortest cabinet we build, and it holds 750 watts RMS with 20mm of excursion behind it.

Two things make that height possible, and only one of them is the 2.875 inch mounting depth. The other is that Wavtech specifies no rear clearance requirement on this driver. The magnet structure sits essentially flush with the frame rather than protruding into the airspace like a conventional vented-pole motor. Most deep drivers need half an inch of breathing room behind the motor, which we build in. The thinPRO10 does not, and that is worth three quarters of an inch of cabinet height.

Look at how the driver gets there. A 4.5 inch voice coil on a shallow 10, four layers, vented polyimide former. Dual internal mirrored NBR spiders rather than a single spider, with a reinforced axial force transfer assembly holding the cone on axis through full travel. FEA-optimized dual-gap motor with double-stacked strontium magnets. Honeycomb Nomex and glass fiber cone. This is a driver that was designed rather than assembled.

At 0.40 net this lands at Qtc 0.869 on the -2 and 0.821 on the -4. Wavtech's preferred volume is 0.35 where they publish 0.86 and 0.81, so we are within a hundredth of their intended alignment while giving the cabinet a small amount of extra breathing room. That is the right place to build.

Coil choice is simple since both are single voice coil. The -2 is 2 ohms, the -4 is 4 ohms, set by which model you buy rather than by wiring. The -2 has slightly lower Fs at 31 Hz and reaches about 3 Hz deeper; the -4 is marginally better damped.

Sensitivity is 81 to 82 dB, which is low. That is the cost of the excursion and the depth. Wavtech recommends 250 to 750 watts and I would run the top half of that.

Questions

How is this cabinet only 4.25 inches tall?

Two reasons, and the second one is the less obvious of the pair. First, the thinPRO10 mounts in only 2.875 inches. Second, and just as important, Wāvtech specifies no rear clearance requirement behind the motor. The magnet structure sits essentially flush with the frame rather than protruding into the airspace the way a conventional vented-pole motor does.

Most drivers in this program need half an inch of breathing room behind the magnet, which we build into the cabinet height. The thinPRO10 does not, and combined with our flush-recess outer baffle layer and the milled relief in the opposite panel, that lets the whole enclosure come in at 4.25 inches. It is the shortest cabinet in the Proline X Down Fire line.

How does the thinPRO10 handle 750 watts at under 3 inches deep?

The voice coil and the suspension. Wāvtech uses a 4.5 inch four-layer high-temp coil on a vented polyimide composite former, which is an unusually large coil for a shallow 10 and gives substantial surface area for heat dissipation. Heat is the limiting factor on continuous power handling.

The 20mm of one-way excursion comes from dual internal mirrored NBR spiders paired with a reinforced axial force transfer assembly, which keeps the cone traveling straight rather than rocking at long throw in a short frame. The motor is an FEA-optimized dual-gap structure with double-stacked strontium magnets. Together those give 750 watts RMS and 2250 watts peak in a 2.875 inch mounting depth.

Should I choose the thinPRO10-2 or the thinPRO10-4?

Both are single voice coil, so the impedance is fixed by which model you buy: 2 ohms for the -2, 4 ohms for the -4. There is no wiring decision at the driver. Start by checking what load your amplifier is stable and efficient into.

Acoustically they are close. The -2 has a slightly lower free-air resonance at 31 Hz against 32, and lands at Qtc 0.812 with F3 at 40.6 Hz in this cabinet. The -4 lands at Qtc 0.768 with F3 at 43.8 Hz, marginally better damped but about 3 Hz shallower. Both carry the same 750 watt RMS rating and the same 20mm of excursion.

How much power should I run to this subwoofer?

Wāvtech rates the thinPRO10 at 750 watts RMS with 2250 watts peak, and recommends 250 to 750 watts of amplifier power. Aim for the upper half of that range.

Sensitivity is 81 dB on the -2 and 82 dB on the -4, which is low. That is the tradeoff for packing a 4.5 inch coil and 20mm of excursion into a 2.875 inch frame: the motor prioritizes control and travel over efficiency. Underpowering this driver leaves significant output unused.

Where is the terminal cup located on a down fire enclosure?

Side mounted. Every Proline X Performance Optimized enclosure uses a side mounted terminal cup regardless of alignment, whether standard, wedge, or down fire. On this cabinet that keeps the connection fully accessible with the enclosure in its installed position, since the baffle faces the floor. The cup is our Proline X ABS and carbon fiber composite unit, recessed, with stainless hardware, copper ring terminals, and pre-wired 12 gauge OFC.

Why are the corners square instead of radiused?

Down Fire cabinets are built with square corners as a series standard. The 3 inch top down corner radius used on other Proline X alignments does not apply here. A down fire box is a low, wide platform that sits flat against a floor or under a seat, and square corners maximize usable internal volume for a given footprint while keeping the cabinet stable on its mounting surface.

How is this enclosure built?

V-groove and dado joinery, CNC-cut on ShopSabre routers from Langboard Elite MDF. Every panel joint is a machined interlocking groove that mechanically locks the panels before adhesive is applied, which is what keeps the cabinet airtight under sustained pressure cycling.

The front baffle is a double layer at 1.5 inches, two bonded 3/4 inch sheets, with the outer layer machined as a flush recess so the driver bolts to the inner layer. On a cabinet only 4.75 inches tall the baffle carries a large share of the structural load, and with a 750 watt driver bolted to it that rigidity matters. Perimeter cross-bracing and pre-installed polyfill complete the build. Assembled and inspected in Tullahoma, Tennessee.

Is the Wavtech thinPRO10 subwoofer included with this enclosure?

No. This listing is for the enclosure only. Bring your own Wāvtech thinPRO10-2 or thinPRO10-4. The cutout and mounting depth are direct fit for either version.

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