AD1212 D4


  • 12″ Dual 4 ohm
  • 100W – 300W optimal power range
  • 2″ voice coil diameter
  • Designed for use in small sealed & vented enclosures.
  • Engineered in the USA.
SKU: AD1212D4 Categories: ,


The 1200 series 12″ is optimized for linear performance and versatility in small to medium size sealed and vented enclosures with mounting depth of only 4.03″.

Fs	30.180 Hz
Qms	5.311
Vas	66.350 l
Cms	0.182 mm/N
Mms	150.800 g
Rms	5.448 kg/s
Xmax	15 mm (One-Way)
Dia	253.900 mm
Sd	506.309 cm²
Qes	1.237
Re	7.792 Ω
Le	1.488 mH
Z	9.350 Ω
Bl	13.421 Tm
Bl²/Re	23.117 N²/W

Qts	1.003
no	0.142 %
SPL	83.675 dB
EBP	24.398

Nominal Diameter		12.0in
Overall Diameter		12.54in / 319mm
Mounting Hole Diameter		10.98in / 279mm
Motor Outer Diameter		5.73in / 146mm
Mounting Depth			4.03in / 103mm
Driver Displacement		0.06 cu ft / 1.7l

Minimum Sealed Volume		0.84 cu ft / 24l net
Minimum Vented Volume		3.46 cu ft / 98l net*

* Tune for desired response

Trunk enclosure:

SUV Enclosure:

Truck enclosure:

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.