Proline X PO 10D-S W IDQ sealed wedge enclosure, product photos pending. Placeholder graphic reading Photos Coming Soon.

Performance Optimized · Datasheet

Performance Optimized Wedge Sealed Dual 10" Enclosure | Image Dynamics IDQ 10 Dual 10" Sealed enclosure

Net volume
2.000 cu ft total, 1.000 per driver
Max mounting depth
5.827 in required
Cutout
9.5670 in
External dimensions
32.00 in W × 15 in at the seat face H × 15.52 in at the base D
Front baffle
1.5 in, double baffle
Buy at Audio Intensity
  • Best For: Dual Image Dynamics IDQ 10 Trunk-Fit Builds
  • Net Volume: 1.000 cu ft per driver (1.13 cu ft Gross)
  • Alignment: Qtc 1.091 to 1.152, fc 55.6 to 57.3 Hz, F3 41.4 to 43.5 Hz
  • Driver Match: Image Dynamics IDQ 10, dual 2 ohm
  • Impedance: dual 2 ohm pair, 2 or 0.5 ohms
  • Construction: Dual Chamber | Rear-Firing Wedge | V-Groove/Dado | Double 1.5" Baffle | Threaded Inserts

Technical specifications

SpecificationValue
SeriesProline X Performance Optimized Wedge
Compatible DriverImage Dynamics IDQ 10, quantity 2. Direct fit
ConfigurationDual 10 inch, dual chamber sealed wedge
Mounting PositionTrunk or cargo area, tall face against the rear seat back
Firing DirectionRearward into the trunk. Not a down fire design, no feet included
External Width32.00 in
External Height15 in at the seat face
External Depth15.52 in at the base, tapering to 10.06 in at the top
Internal Volume, Gross2.26 cu ft total, 1.13 per chamber
Internal Volume, Net Acoustic2.000 cu ft total, 1.000 per driver
AlignmentQtc 1.091 to 1.152, fc 55.6 to 57.3 Hz, F3 41.4 to 43.5 Hz anechoic
Driver Cutout9.5670 in
Driver Mounting Depth5.827 in required
Power Handling500 watts RMS total across the pair
ImpedanceDual 2 ohm per driver
MaterialLangboard Elite MDF
ConstructionCNC cut, V-groove and dado joinery
Panel Thickness0.75 in
Front Baffle1.5 in, double baffle
Internal BracingFull chamber divider
Driver MountingThreaded inserts at every mounting location, stainless machine screws included
Terminal CupsOne Proline X ABS and carbon fiber composite, side mounted, pre wired 12 gauge OFC
DampingLight polyfill wall lining, does not alter acoustic volume
CarpetPlush black
Weight48.8 lb
Warranty1 Year Limited
Built InTullahoma, Tennessee

Performance in this enclosure

Net airspace
1.00
cu ft per chamber
System Qtc
1.09–1.15
sealed
Half power
41.4–43.5
Hz · F3
Xmax at
535
W RMS · no filter
With 25 Hz subsonic
541
W RMS · +1%
Amplifier
250
W RMS recommended
This enclosure holds 1.00 cu ft net per chamber. In it the Image Dynamics IDQ 10 runs a system Qtc of 1.09–1.15 with half power at 41.4–43.5 Hz, and the cone reaches its 14.5 mm travel limit at 535 W, above the driver’s 250 W thermal rating, so heat stops you before travel does. A 25 Hz subsonic filter adds little here: 541 W against 535 W, 1 percent. The box already resonates at 56–57 Hz, so its own rolloff has removed most of what the filter would have stopped.

01Is it a sealed driver?

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

EBP = Fs ÷ Qes = 38.2–42.4
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 D2 42.4 D4 38.2
D2 · EBP 42.4D4 · EBP 38.2
EBP under 50 means a motor that wants a sealed load. The IDQ10 V4 sits at 38.2–42.4, inside that band, which is why this is a sealed build rather than a ported one.

02What the box does to it

1.00 cu ft against a 24.3 L Vas.

α = Vas ÷ Vb = 0.86  ·  Fc = Fs√(α+1) = 56–57 Hz  ·  Qtc = 1.09–1.15
20 30 50 70 100 150 200 +6 +0 -6 -12 -18 -24 FREQUENCY · Hz LEVEL · dB −3 dB
D2 · Qtc 1.09, Fc 57 Hz, F3 43.5 HzD4 · Qtc 1.15, Fc 56 Hz, F3 41.4 Hz
The box lifts resonance from 42.0 Hz free-air to 56–57 Hz and half power lands at 41.4–43.5 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 14.5 mm, and in this alignment a subsonic filter barely moves it.

PXmax = 535–555 W unfiltered  →  541–561 W with a 25 Hz subsonic
20 30 50 70 100 150 200 0 4 8 12 16 FREQUENCY · Hz CONE TRAVEL · mm PAST LINEAR TRAVEL · Xmax 14.5 mm 535 W reaches Xmax here
D2 · 535 W, no filterD4 · 555 W, no filterD2 · 541 W with subsonic at 25 Hz, 24 dB/octD4 · 561 W with subsonic at 25 Hz, 24 dB/octXmax 14.5 mm one-way
Every trace touches the limit and no further, because each is drawn at the exact power that puts that coil on 14.5 mm. Unfiltered that is 535 W, reached first at 44 Hz. It sits above the 250 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, and they sit almost on top of the solid ones: 541 W against 535 W. At 56–57 Hz the filter sits well below resonance, where the sealed alignment has already rolled the cone off at 12 dB/oct, so there is little wasted travel left for it to recover. Set it anyway to keep road rumble out of the cone, but do not size the amplifier around it.
ParamValueUnitNote
Fs42.00Hzfree-air resonance
Qts0.800 / 0.870D2 / D4
Vas24.30 / 21.30Lequivalent compliance
Sd380.0cm²effective piston area
Xmax14.5mmone-way linear travel
Pe250Wcontinuous RMS
SPL84.4dB1 W / 1 m, derived from T/S

Driver parameters as published by loudspeakerdatabase.com. Curves computed against this enclosure’s actual net airspace.

Installer's take

1. at Qtc 1.091 to 1.152 and F3 41.4 to 43.5 Hz anechoic, per chamber, computed from published Thiele-Small.

On impedance: Each driver is a dual 2 ohm. Wired in series a driver is 4 ohms, and the pair in parallel gives 2 ohms. All four coils in parallel is 0.5 ohms, which almost nothing is stable into, so 2 ohms is the sensible target.

Measure the base depth. This cabinet is 15.52 inches deep at the trunk floor, 10.06 at the top, and 32.00 wide.

Questions

Will this enclosure fit two IDQ10 V4?

Yes. Both positions are CNC cut to 9.5670 in for the IDQ10 V4's cutout and the cabinet clears its 5.827 in mounting depth. Threaded inserts are pressed in at every mounting location.

Why 1.000 cubic feet net per driver?

1.000 cubic feet net per driver, the same airspace the single version of this cabinet holds. The alignment is identical: Qtc 1.091 to 1.152 either way. Each chamber is 1.13 cu ft gross before the driver's displacement.

What amplifier power should I run, and what impedance?

The Image Dynamics IDQ 10 is rated 250 watts RMS each, so 500 across the pair. Each driver is a dual 2 ohm. Wired in series a driver is 4 ohms, and the pair in parallel gives 2 ohms. All four coils in parallel is 0.5 ohms, which almost nothing is stable into, so 2 ohms is the sensible target. Aim for roughly 350 to 500 watts at the final wired impedance.

How does a wedge enclosure improve the sound in a trunk installation?

The angled seat-side face matches the roughly 20 degree lean of a factory rear seat, so the cabinet sits flat against it instead of leaving a wasted triangle. The vertical trunk-lid-side face carries both drivers, firing rearward into the trunk cavity.

Why two separate chambers instead of one shared one?

A shared chamber lets each cone modulate the other's air load, which makes the pair less predictable under hard excursion. A full divider gives each driver its own sealed volume, so both behave exactly as the single version does.

What is the expected low-frequency extension?

Half power lands at 41.4 to 43.5 Hz anechoic, before any cabin gain. Qtc is 1.091 to 1.152. These figures exclude cabin gain, which in most vehicles adds real output below 40 Hz.

Do I need to add polyfill or damping?

No. Polyfill is already installed as a light wall lining and the quantity is chosen so it does not change the acoustic volume. Do not add more.

Are the drivers included?

No. This is an enclosure only. You receive the cabinet finished in plush black carpet, with threaded inserts at both driver positions, stainless machine screws, one side-mounted pre-wired terminal cup and the polyfill lining already installed.

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