Car audio subwoofer enclosure with a visible brand logo on a white surface.

Loaded Series · Datasheet

Single 12" Sealed Micro Series System Loaded with Wavtech thinPRO12 · Single 12" Sealed enclosure

Net volume
0.60 ft³
Tuning
N/A: Sealed
External dimensions
26.5" W × 17" H × 4.5" D
Buy at Audio IntensityFactory-direct, ships from Tullahoma
  • Best For: High-output stealth installs / Space-limited 12" builds
  • Configuration: Single 12" Sealed: Micro Series
  • Volume: 0.60 ft³ Net
  • Tuning: N/A, Sealed
  • Sonic Character: Tight, High-Output, Controlled

Spec of record

Technical specifications

Enclosure TypeSealed: Micro Series
ConfigurationSingle 12"
Net Volume0.60 ft³
Tuning FrequencyN/A: Sealed
External Dimensions26.5" W × 17" H × 4.5" D
MDFLangboard Elite 3/4"
JoineryV-groove + dado
Terminal CupRecessed ABS/Carbon Fiber Composite
Speaker Wire12g OFC pre-installed
HardwareThreaded inserts, stainless 8/32 screws
Acoustic TreatmentPolyfill pre-installed
Firing OptionsFront-fire or down-fire (feet included)
FinishPlush Black
Vehicle FitmentUniversal

Modelled response

Performance in this enclosure

Net airspace
0.60
cu ft per chamber
System Qtc
0.86
sealed
Half power
41.4
Hz · F3
Xmax at
1600
W RMS · no filter
With 25 Hz subsonic
1787
W RMS · +12%
Amplifier
250–750
W RMS recommended
This enclosure holds 0.60 cu ft net per chamber. In it the Wavtech thinPRO12 runs a system Qtc of 0.86 with half power at 41.4 Hz, and the cone reaches its 20.0 mm travel limit at 1600 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 1787 W — +186 W, or 12 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 = 51.0
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 4 51.0
4 · EBP 51.0
At 51.0 the thinPRO12 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

0.60 cu ft against a 42.0 L Vas.

α = Vas ÷ Vb = 2.47  ·  Fc = Fs√(α+1) = 48 Hz  ·  Qtc = 0.86
20 30 50 70 100 150 200 +6 +0 -6 -12 -18 -24 FREQUENCY · Hz LEVEL · dB −3 dB
4 · Qtc 0.86, Fc 48 Hz, F3 41.4 Hz
The box lifts resonance from 26.0 Hz free-air to 48 Hz and half power lands at 41.4 Hz, anechoic, before any cabin gain.

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 = 1600 W unfiltered  →  1787 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 1600 W reaches Xmax here
4 · 1600 W, no filter4 · 1787 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 1600 W, reached first at 27 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 1787 W before hitting the same 20.0 mm. That is 12 percent more amplifier for the price of one filter setting.
ParamValueUnitNote
Fs26.00Hzfree-air resonance
Qts0.4604
Vas42.00Lequivalent compliance
Sd510.7cm²effective piston area
Xmax20mmone-way linear travel
Pe750Wcontinuous RMS
SPL83.5dB1 W / 1 m, derived from T/S

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

From the shop floor

Installer's take

The thinPRO 12 in a 4.5" deep enclosure is the product that stops people in their tracks when they see it installed. A 12" subwoofer running 750W RMS in a box that's 4.5" deep looks wrong, and then it plays, and it sounds exactly like a properly loaded 12". The 5" voice coil and competition-grade motor structure are what make that possible. This is not a compromised shallow-mount driver.

The impedance selection at checkout is fixed, single voice coil, no wiring options. The 4-ohm variant has slightly lower Fs (26Hz vs 25Hz) and slightly higher sensitivity (84dB vs 83dB). In practice both sound essentially the same. Pick whichever matches your amplifier's optimal impedance load.

At 26.5" wide this is the largest Micro Series enclosure in the lineup. It fits most full-size sedan trunks and SUV cargo floors flat, but check the width before ordering. The 17" height is the other measurement to watch for under-seat applications. Most crew cab rear seat clearances won't accommodate 17". This is primarily a trunk floor or cargo area system.

Before you order

Questions

What makes the Wavtech thinPRO12 different from other shallow mount subwoofers?

Unlike typical shallow subwoofers that compromise on performance, the thinPRO12 features a patent-pending design with dual mirrored NBR spiders and axial force transfer assembly. This allows for over 2 inches of peak-to-peak excursion, significantly more than most shallow subwoofers, while maintaining a mounting depth of just 3 inches. The 5-inch voice coil and advanced motor structure provide exceptional power handling and control for bass that rivals much larger traditional subwoofers.

What are the advantages of the sealed enclosure design used in this package?

The sealed enclosure design provides tight, accurate bass reproduction with excellent transient response and detail. This makes it ideal for all music genres, particularly those where precision and definition are essential. Sealed enclosures are also more compact than ported designs, making them ideal for space-limited applications. Additionally, sealed enclosures provide more forgiving placement options and are less sensitive to positioning within the vehicle.

How much power do I need to drive this subwoofer effectively?

The Wavtech thinPRO12 subwoofer is rated for 750W RMS power handling. We recommend an amplifier capable of delivering 750-1000W RMS at the appropriate impedance (2 or 4 ohms, depending on which subwoofer model you choose) to ensure adequate power without risking damage from overdriving the system.

Can I use this enclosure in a down-firing configuration?

Yes, this enclosure is designed to work in both standard and down-firing configurations. The optional feet included with the package allow for easy conversion to down-firing operation, which can enhance bass coupling with the vehicle's interior space in certain installations, particularly under-seat or in cargo areas.

Can I add a second subwoofer to this enclosure in the future?

No, this enclosure is specifically designed for a single 12-inch subwoofer. Suppose you're interested in a dual subwoofer setup. In that case, we recommend checking out our Proline-X Dual 12" enclosures, which are specifically engineered to house two subwoofers with optimal internal volume and bracing for balanced performance.

Will this system work well for all types of music?

The combination of high-performance thinPRO12 subwoofers in a precisely tuned sealed enclosure delivers excellent bass reproduction across all music genres. The sealed design provides tight, accurate bass that works exceptionally well for rock, jazz, classical, and acoustic music. At the same time, the high power handling and excursion capabilities ensure plenty of output for hip-hop, EDM, and other bass-heavy genres.

How does the shallow design affect bass performance compared to traditional subwoofers?

The innovative engineering of the thinPRO12 subwoofers overcomes the typical limitations of shallow designs. With 20mm of linear Xmax and over 2 inches of peak-to-peak excursion, these subwoofers move as much air as many traditional designs. The composite honeycomb cone, massive voice coil, and advanced motor structure ensure that bass is reproduced with the depth, impact, and control you'd expect from much larger drivers.

What is the lead time and how does shipping work?

This system is assembled to order in Tullahoma, Tennessee. Allow 2–5 business days for assembly before it ships. Shipping to the lower 48 states is included. No freight charges added at checkout. You'll receive a tracking number when the order ships.

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