AD2112 D4



  • 200W – 700W optimal power range
  • Thermally-coupled aluminum cone & dustcap.
  • Designed for use in small vented enclosures.
  • Engineered in the USA.

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SKU: AD2112 D4 Category:


The 2100 series 12 employs a finely-tuned balance of damping and motor force to achieve high efficiency, offering exceptional versatility and performance in a variety of real-world functions:

Paired with a traditional (4th order) bass-reflex enclosure, the subwoofer’s output can be focused along a narrow bandwidth for use in sheer loudness / SPL applications. In a 6th order bass-reflex, the output can be spread along a wider frequency range, shifting emphasis onto sound quality with articulate delivery and highly controlled excursion.

Fs	33.650 Hz
Qms	3.910
Vas	38.190 l
Cms	0.110 mm/N
Mms	193.200 g
Rms	10.530 kg/s
Dia	248.400 mm
Sd	484.610 cm²
Qes	0.470
Re	7.430 Ω
Le	2.710 mH
Z	8.910 Ω
Bl	25.160 Tm
Bl²/Re	85.200 N²/W

Qts	0.420
no	0.290 %
SPL	86.810 dB
EBP	70

Nominal Diameter		12in
Overall Diameter		12.26in / 311mm
Mounting Hole Diameter		10.96in / 278.5mm
Bolt Hole Circle Diameter
Motor Outer Diameter
Mounting Depth			6.18in / 157mm
Required Pole Vent Clearance
Driver Displacement		0.10 cu ft / 2.92l

Minimum Sealed Volume		N/A
Minimum Vented Volume		1.34 cu ft / 38l net*

* Tune for desired response

The above designs have been engineered for a “two tier” balance of compatibility: First, between the cabin acoustics of a sedan, hatchback and an SUV, and second, between the two available voice coil configurations, for a total of six balance points. This ensures a linear response and optimal power handling for listening purposes under most circumstances. Please visit our Enclosure Design Service page for custom designs.