AD1208 D4


  • 50W – 200W optimal power range
  • 1.5″ voice coil diameter
  • Designed for use in small sealed & vented enclosures.
  • Engineered in the USA.


The 1200 series 8″ is optimized for linear performance and versatility in small to medium size sealed and vented enclosures with mounting clearance as low as 4″. It performs well in 4th and 6th order bass-reflex arrangements, achieving virtually any desired response shape.

Fs	45.001 Hz
Qms	4.875
Vas	12.303 l
Cms	0.218 mm/N
Mms	57.380 g
Rms	3.328 kg/s
Xmax	10 mm (One-Way)
Dia	159.315 mm
Sd	201.000 cm²
Qes	0.763
Re	7.600 Ω
Le	1.500 mH
Z	9.120 Ω
Bl	12.715 Tm
Bl²/Re	21.271 N²/W

Qts	0.660
no	0.142 %
SPL	83.662 dB
EBP	58.995

Nominal Diameter		8.0in
Overall Diameter		8.4in / 213mm
Mounting Hole Diameter		7.16in / 181mm
Motor Outer Diameter		4.69in / 119mm
Mounting Depth			3.93in / 99mm
Driver Displacement		0.02 cu ft / 0.68l

Minimum Sealed Volume		0.27 cu ft / 7.64l net
Minimum Vented Volume		0.67 cu ft / 19l 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.