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Image Dynamics
Image Dynamics ID12 V4 12 inch Subwoofer
SKU: ID12 D2 V4
$ 159.99
QUICK SPECS
- Power: 250W RMS | 500W Peak | Enclosure-dependent (450W compact, 250W audiophile)
- Voice Coil: Dual 2-Ohm (D2, near-Butterworth sealed) or Dual 4-Ohm (D4, punchy sealed) | 13.95mm Xmax
- Sealed Box: 0.80 cu ft (Compact) to 1.50 cu ft (Audiophile) | Ported 1.50-2.00 cu ft
- Fitment: Mounting Depth 5.67 in | Cutout 11.0 in | OD 12.25 in
Image Dynamics ID12 V4 12 inch Subwoofer
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Image Dynamics ID Series Subwoofers
Image Dynamics ID12 V.4 12 Inch Subwoofer
The top of the ID Series. Maximum cone area, 497.60 cm2, in the same hand-built construction platform: Parabolic Santoprene surround, Poly/Mica cone, BASV former, 250 watts RMS continuous. The D2 variant produces one of the flattest sealed alignments in the ID family.
250W RMS
500W Peak
Hand-Built in the USA
Dual 2 or Dual 4 Ohm
Maximum ID Series Output
The Image Dynamics ID12 V.4 brings the full ID Series construction to a 12 inch cone with 497.60 cm2 of piston area. More air movement at the same excursion, deeper extension in a properly sized box, and the capacity to fill larger vehicle cabins where a 10 inch driver runs out of displacement before it runs out of power. The ID12 handles 250 watts RMS continuous, the same as the ID10, but with the added advantage of a larger cone doing the work.
The 2.0 inch BASV former and 127 ounce Extended Y-35 motor are the same specification as the ID10, scaled to drive a heavier 12 inch assembly. The Mms runs higher at 207.8 grams (D2), which shifts the Fs up to 45 Hz. This is the key difference from the ID8 and ID10: the ID12's higher Fs produces a distinctly different sealed alignment character, particularly in the D2 variant.
0.80Cu Ft Min Sealed
13.95mmXmax
250WRMS Power
86 dBSensitivity
A Different Character in Sealed
The ID8 and ID10 run high Qtc in sealed enclosures, producing the punchy, midbass-forward character that makes them impactful in daily use systems. The ID12 D2 behaves differently. With a Qts of 0.628 and Fs of 45 Hz, the D2 at 1.25 cubic feet produces a Qtc of 0.797, near-Butterworth, which means a flatter, more controlled response with better transient accuracy. This is a genuinely different tuning philosophy from the rest of the ID Series, and it makes the ID12 D2 the most accurate sealed alignment in the lineup.
The D4 variant runs closer to the ID10 character, with Qtc from 0.99 to 1.14 across the sealed range, producing more midbass presence and punch. The choice between D2 and D4 here is also a choice between two meaningfully different sounds, not just two impedance options.
Ported Deep Bass
Image Dynamics recommends sealed for optimal sound quality, but the ID12 ported specifications are where the driver's low Fs advantage disappears and the large cone area takes over. The Audiophile 2.0 cubic foot ported alignment tuned to 30 Hz produces F3 at 26 Hz. That is exceptional for a 12 inch driver in a box that fits in most trunk builds, and it is the reason the ID Series has been competitive in sound quality events where low bass extension is scored.
Fitment at a glance: mounting depth 5.67 inches, cutout 11.0 inches, outside diameter 12.25 inches, driver displacement 0.122 cubic feet. Sealed volumes are net internal per Image Dynamics specifications. Ported enclosure volumes include port volume per the manual.
D2 or D4: Two Different Sounds
The ID12 D2 (Qts 0.628) and D4 (Qts 0.787) produce noticeably different sealed alignments at the same box volume. The D2 is the accurate, controlled option that approaches Butterworth in the Universal and Audiophile volumes. The D4 is the punchier, fuller-sounding option with more midbass presence. Match the impedance to your amplifier, but understand you are also choosing a sonic character.
Built and Backed
Hand-built in Ontario, California. The Image Dynamics ID12 V.4 carries a 1-year limited warranty through authorized dealers. Every unit sold by Audio Intensity is brand new with full warranty coverage.
Authorized Image Dynamics Dealer
Audio Intensity ships the Image Dynamics ID12 V.4 fast from Tullahoma, Tennessee. Tell us your enclosure space, your amplifier, and your listening priorities and we will help you match the right voice coil and enclosure alignment to your build.
Sealed Enclosure Performance: Pre-Calculated Results
Using Image Dynamics' published Thiele-Small parameters, here are the predicted Qtc, system resonance (Fc), and F3 rolloff for each sealed volume. Volumes are net internal (including driver displacement), per the ID Series manual. Calculated using the same formulas as the Audio Intensity Sealed Box Calculator.
The ID12 has a higher Fs (45 Hz) than the ID8 and ID10 (31-32 Hz), which shifts the sealed alignment upward. The D2 lands near Butterworth across the full sealed range (Qtc 0.77 to 0.88), producing a controlled, accurate bass response with minimal midbass lift. The D4 runs higher (Qtc 0.99 to 1.14), closer to the punchy character of the ID10. This makes the D2 the better choice for sound quality applications and the D4 for listeners who prefer more midbass impact.
D2 — Dual 2 Ohm | Qts 0.628 | Fs 45 Hz | Vas 21.65 L
| Box Volume | Qtc | Fc | F3 |
|---|---|---|---|
| 0.80 cu ftCompact / max power handling (450W) | 0.878 | 62.9 Hz | 53.0 Hz |
| 1.25 cu ft ★Universal / balanced (350W max) | 0.797 | 57.1 Hz | 51.4 Hz |
| 1.50 cu ftAudiophile / most extension (250W max) | 0.772 | 55.3 Hz | 51.1 Hz |
D4 — Dual 4 Ohm | Qts 0.787 | Fs 45 Hz | Vas 24.89 L
| Box Volume | Qtc | Fc | F3 |
|---|---|---|---|
| 0.80 cu ftCompact / max power handling (450W) | 1.140 | 65.2 Hz | 48.7 Hz |
| 1.25 cu ft ★Universal / balanced (350W max) | 1.027 | 58.7 Hz | 45.6 Hz |
| 1.50 cu ftAudiophile / most extension (250W max) | 0.991 | 56.7 Hz | 44.7 Hz |
D2 Frequency Response — Sealed
0.80 cu ft (Qtc 0.878)
1.25 cu ft (Qtc 0.797) ★
1.50 cu ft (Qtc 0.772)
D4 Frequency Response — Sealed
0.80 cu ft (Qtc 1.140)
1.25 cu ft (Qtc 1.027) ★
1.50 cu ft (Qtc 0.991)
Power handling and ported options: Sealed enclosure power handling decreases as volume increases: 450W at 0.80 cu ft, 350W at 1.25 cu ft, 250W at 1.50 cu ft. For ported applications, the ID12 reaches F3 as low as 26 Hz in the Audiophile 2.0 cu ft alignment tuned to 30 Hz. Ported port dimensions are in the ID Series V.4 manual. Run your own numbers in the Sealed Box Calculator.
Ready to build? The Enclosures tab above lists the Proline X sealed and ported enclosures we build specifically for 12 inch drivers, CNC-cut in Tullahoma, Tennessee.
| Image Dynamics ID12 V.4 Subwoofer Specifications | ||
|---|---|---|
| Specification | D2 Version | D4 Version |
| Power and Configuration | ||
| RMS Power Handling | 250 Watts | |
| Peak Power Handling | 500 Watts | |
| Voice Coil Configuration | Dual 2-Ohm (D2) | Dual 4-Ohm (D4) |
| Wiring Options | 1 Ohm or 4 Ohm | 2 Ohm or 8 Ohm |
| Thiele-Small Parameters | ||
| Resonant Frequency (Fs) | 45 Hz | |
| Total Q (Qts) | 0.628 | 0.787 |
| Electrical Q (Qes) | 0.698 | 0.698 |
| Mechanical Q (Qms) | 5.561 | 5.582 |
| Equivalent Volume (Vas) | 21.65 L | 24.89 L |
| DC Resistance (Re) | 1.9 Ohm (per coil) | 3.8 Ohm (per coil) |
| Force Factor (BL) | 12.65 T/m | 10.62 T/m |
| Sensitivity (1W / 1m) | 86 dB | |
| Xmax (One-Way Linear) | 13.95 mm | |
| Cone Area (Sd) | 497.60 cm2 | |
| Moving Mass (Mms) | 207.8 g | 192.2 g |
| Driver Displacement | 0.122 cu ft | |
| Recommended Sealed Enclosures | ||
| Compact (0.80 cu ft) | F3 50 Hz, 450W max | |
| Universal (1.25 cu ft) | F3 47 Hz, 350W max | |
| Audiophile (1.50 cu ft) | F3 45 Hz, 250W max | |
| Recommended Ported Enclosures | ||
| Compact (1.50 cu ft, 34 Hz) | F3 31 Hz, 450W max | |
| Universal (1.75 cu ft, 32 Hz) | F3 28 Hz, 350W max | |
| Audiophile (2.00 cu ft, 30 Hz) | F3 26 Hz, 250W max | |
| Construction | ||
| Voice Coil Former | BASV (Body Alignment Stiffening Voice Coil) | |
| Voice Coil Wire | Copper | |
| Voice Coil Size | 2.0 in | |
| Cone Material | Poly/Mica Composite | |
| Surround | Parabolic Santoprene Rubber | |
| Spider | Hybrid Progressive Nomex | |
| Neck Joint | Polycarbonate | |
| Motor Structure | Extended Y-35, 127 oz | |
| Mounting and Physical | ||
| Mounting Depth | 5.67 in (144 mm) | |
| Cutout Diameter | 11.0 in (280 mm) | |
| Outside Diameter | 12.25 in | |
| Net Weight | 10.0 lbs | |
| Engineering Origin | Hand-Built in the USA | |
| Warranty | 1 Year (Authorized Dealers) | |
