Proline X PO 10-S W IDQ sealed wedge enclosure, front baffle with gloss black insert and pre-wired leads, 20 by 14 inches. Optimized for Image Dynamics IDQ.Proline X PO 10-S W IDQ sealed wedge enclosure, side profile with recessed terminal cup, 8.4 inch top, 13.5 inch base, 14 inches tall. Optimized for Image Dynamics IDQ.

Performance Optimized · Datasheet

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

Cutout
9.57 Inches
External dimensions
20 Inches W × 14 Inches H × 8.4 Inches / 13.5 Inches D
Buy at Audio Intensity
  • Best For: IDQ10 V4 Trunk-Fit Builds | SQ-Oriented Systems
  • Net Volume: 1.0 cu ft Sealed Airspace
  • Driver Match: Image Dynamics IDQ10 V4 (D2 or D4)
  • Construction: Wedge Geometry | V-Groove/Dado | Threaded Inserts

Technical specifications

Enclosure TypeSealed | Wedge Geometry
Driver-Specific FitmentImage Dynamics IDQ10 V4 (Dual 2Ω or Dual 4Ω)
Internal Airspace1.0 Cubic Feet
MaterialLangboard Elite 3/4" MDF
JoineryV-Groove and Dado (CNC-Cut)
ConstructionShopSabre CNC / Angled Baffle Compound Cuts
External Width20 Inches
External Height14 Inches
External Depth (Top)8.4 Inches
External Depth (Bottom)13.5 Inches
Baffle Angle~20° From Vertical
Mounting Hole Diameter9.57 Inches
Mounting Hardware8/32 Threaded Inserts | Stainless Steel Screws Included
Terminal CupProline X ABS/Carbon Fiber Composite | 12g OFC Pre-Wired
DampingPolyfill Pre-Installed
Recommended Power250-350 Watts RMS (250W Nominal / 350W Max in This Alignment)
Carpet FinishDark Gray Trunkliner (Standard) or Plush Black
Acrylic InsertBlack, Blue, Red, White, or None
Bundle OptionsBox Only | Add a Dual 2Ω Driver | Add a Dual 4Ω Driver
Warranty1-Year Limited (Enclosure)
ManufacturedTullahoma, Tennessee, USA

Performance in this enclosure

Net airspace
1.00
cu ft per chamber
System Qtc
1.09–1.15
sealed
Half power
41.5–43.5
Hz · F3
Xmax at
539
W RMS · no filter
With 25 Hz subsonic
545
W RMS · +1%
Amplifier
250–500
W RMS recommended
This enclosure holds 1.00 cu ft net per chamber. In it the Image Dynamics IDQ10 V4 runs a system Qtc of 1.09–1.15 with half power at 41.5–43.5 Hz, and the cone reaches its 14.5 mm travel limit at 539 W, above the driver’s 500 W thermal rating, so heat stops you before travel does. Run a subsonic filter at 25 Hz and that becomes 545 W — +6 W, or 1 percent more power for the same 14.5 mm of travel.

01Is it a sealed driver?

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

EBP = Fs ÷ Qes = 38.1–42.3
SEALED 0–50 TRANSITION 50–100 PORTED 100–150 0 50 100 150 D2 42.3 D4 38.1
D2 · EBP 42.3D4 · EBP 38.1
EBP under 50 means a motor that wants a sealed load. The IDQ10 V4 sits at 38.1–42.3, 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 41.5 Hz
The box lifts resonance from 42.0 Hz free-air to 56–57 Hz and half power lands at 41.5–43.5 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 14.5 mm — and a bigger one once a subsonic filter stops it wasting travel below the passband.

PXmax = 539–559 W unfiltered  →  545–565 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 539 W reaches Xmax here
D2 · 539 W, no filterD4 · 559 W, no filterD2 · 545 W with subsonic at 25 Hz, 24 dB/octD4 · 565 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 539 W, reached first at 44 Hz. It sits above the 500 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 545 W before hitting the same 14.5 mm. That is 1 percent more amplifier for the price of one filter setting.
ParamValueUnitNote
Fs42.00Hzfree-air resonance
Qts0.797 / 0.868D2 / D4
Vas24.30 / 21.32Lequivalent compliance
Sd380.1cm²effective piston area
Xmax14.5mmone-way linear travel
Pe500Wcontinuous RMS
SPL84.4dB1 W / 1 m, derived from T/S

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

Installer's take

INSTALLER'S TAKE Trunk-load wedges are one of the oldest tricks in the SQ playbook, and they still work as well as they ever did. The idea is simple: mount the woofer on the vertical face that faces the trunk lid, angle the opposite face to match the lean of the rear seat back, and let the trunk cavity load the driver. Done right, you get smoother low-end integration into the cabin, a system that doesn't localize behind the listener, and a cabinet that tucks into the trunk shelf area without stealing usable cargo space. For the IDQ10 V4 specifically, this cabinet is a great fit. Image Dynamics publishes three sealed alignments: 0.60 Compact, 1.10 Universal, and 1.60 Audiophile. The 1.0 cubic foot volume in this wedge lands between Compact and Universal, dialed closer to Universal so you get most of the low-end reach that alignment delivers while keeping the tighter Qtc and slightly higher power handling that comes from a somewhat smaller cabinet. Approximately 350 watts maximum in this alignment. Not the deepest possible IDQ10 build, but the best balance of extension, control, and power handling for a single-driver system. The geometry is what makes this design work in real vehicles. The 8.4 inch top to 13.5 inch bottom depth difference on the seat-side face creates a 20 degree lean back from vertical, the same angle as most factory rear seat backrests within a couple degrees. When you push the wedge back against the rear seat, the angled seat-side face sits flush against the seat back, with no wasted gap eating trunk space. The vertical trunk-lid-side face is where the woofer mounts, firing rearward toward the trunk lid. Why fire the woofer rearward instead of into the cabin? Two reasons. First, it uses the trunk cavity as an acoustic loading chamber, the trunk itself becomes part of the low-frequency reproduction path. Bass energy transmits into the passenger cabin through the rear deck, seat back, and side boundaries rather than firing directly at the listener. The result is a smoother, less localized bass presentation. Second, it lets the wedge sit against the seat without any air path or firing obstruction on the front side of the box. If you tried to fire the woofer forward through the seat back, you'd need clearance in front of the driver, and the whole point of the wedge shape is that you don't have that clearance. The 20 x 14 footprint is the same as our rectangular PO 10-S IDQ box. Same trunk floor real estate, but the wedge shape effectively preserves more usable cargo space because the top portion of the wedge is hidden behind the rear seat. Wiring is standard IDQ10. Dual 2 ohm gets you 1 ohm parallel or 4 ohms series. Dual 4 ohm gets you 2 ohms parallel or 8 ohms series. 250 to 350 watts RMS at your chosen impedance is the target. Don't cheap out on the amp, the IDQ is a driver that rewards clean power. If you're building an SQ-oriented single 10 system in a trunk and you want the smoother acoustic loading that a trunk-fired wedge delivers, this is the answer. -Scott

Questions

What size enclosure does the Image Dynamics IDQ10 V4 need?

The Image Dynamics IDQ10 V4 has three published sealed alignments: 0.60 cubic feet (Compact), 1.10 cubic feet (Universal), and 1.60 cubic feet (Audiophile). The Audio Intensity Performance Optimized Wedge Sealed 10 for IDQ delivers 1.0 cubic feet of airspace. Dialed between Compact and Universal for a balanced Qtc target with tight transient response and strong low-end extension.

What are the dimensions of the Performance Optimized Wedge Sealed 10 for the IDQ10?

The Performance Optimized Wedge Sealed 10 for the Image Dynamics IDQ10 V4 measures 20" wide x 14" tall externally, with a wedge-shaped depth of 8.4" at the top and 13.5" at the bottom. The angled front baffle sits approximately 20 degrees back from vertical, designed to follow the geometry of typical sedan and coupe trunk interiors.

Why choose a wedge enclosure instead of a rectangular cabinet for the IDQ10?

A wedge enclosure fits trunks that rectangular cabinets can't. The angled seat-side face (8.4" at top, 13.5" at bottom) matches the natural lean of most factory rear seat backrests, tucking against the seat with no wasted gap. The woofer mounts on the vertical trunk-lid-side face and fires rearward into the trunk cavity, using the trunk itself as an acoustic loading chamber for smoother, less-localized bass. The wedge geometry also reduces internal standing waves by eliminating parallel walls.

How much power can the Image Dynamics IDQ10 V4 handle?

The Image Dynamics IDQ10 V4 handles 250 watts RMS nominal and 500 watts peak. Maximum power handling varies by enclosure alignment: 450 watts in the 0.60 cu ft Compact alignment, approximately 350 watts in this 1.0 cu ft wedge alignment, 350 watts in the 1.10 cu ft Universal alignment, and 250 watts in the 1.60 cu ft Audiophile alignment. Aim for a clean 250 to 350 watts RMS at your chosen impedance.

What impedance options are available for the Image Dynamics IDQ10 V4?

The Image Dynamics IDQ10 V4 is available in two dual voice coil impedance configurations: Dual 2-ohm (D2) and Dual 4-ohm (D4). A Dual 2-ohm IDQ10 wired in parallel presents a 1-ohm load or wired in series presents 4 ohms. A Dual 4-ohm IDQ10 wired in parallel presents 2 ohms or wired in series presents 8 ohms. Pick the impedance version based on what your amplifier is stable at.

What is the mounting depth of the Image Dynamics IDQ10 V4?

The Image Dynamics IDQ10 V4 has a 5.81-inch mounting depth with a 9.57-inch cutout diameter and 11.04-inch outer diameter. The Performance Optimized Wedge Sealed 10 enclosure's tapered depth profile (8.4" top to 13.5" bottom) provides comfortable internal clearance for the IDQ10's motor structure and adequate magnet ventilation.

What mounting hardware does the Performance Optimized Wedge Sealed 10 for IDQ10 include?

The Performance Optimized Wedge Sealed 10 for Image Dynamics IDQ10 includes 8/32 threaded inserts pressed into the vertical trunk-lid-side woofer baffle and stainless steel mounting screws sized for the IDQ10 V4. The enclosure also includes a Proline X ABS/carbon fiber composite terminal cup pre-wired with 12-gauge OFC and stainless steel input hardware accepting spade or banana terminations.

Where is the Performance Optimized Wedge Sealed 10 for IDQ10 manufactured?

The Performance Optimized Wedge Sealed 10 for Image Dynamics IDQ10 is manufactured in Tullahoma, Tennessee, USA. Each enclosure is CNC-cut from Langboard Elite 3/4" MDF on ShopSabre routers and hand-assembled at Audio Intensity's Tennessee facility. Build time is 2 to 5 business days from order placement.

Other Performance Optimized models