Back to Top

AD2108 D4

100W – 500W optimal power range / 800W max.
Thermally-coupled aluminum cone & dustcap.
Designed for use in small vented enclosures.
Engineered in the USA.

Retail $269.00
Get Online Discounts

The 2100 series 8 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.

Nominal Diameter		8in
Overall Diameter		8.26in / 210mm
Mounting Hole Diameter		7.16in / 182mm
Bolt Hole Circle Diameter
Motor Outer Diameter
Mounting Depth			4.68in / 119mm
Required Pole Vent Clearance
Driver Displacement		0.04 cu ft / 1.37l

Minimum Sealed Volume		N/A
Minimum Vented Volume		0.49 cu ft / 14l net*

* Tune for desired response
Fs	52.490 Hz
Qms	4.970
Vas	4.160 l
Cms	0.060 mm/N
Mms	134.200 g
Rms	8.990 kg/s
Dia	162.740 mm
Sd	208.000 cm²
	
Qes	0.720
Re	7.240 Ω
Le	2.440 mH
Z	8.690 Ω
Bl	21.010 Tm
Bl²/Re	60.920 N²/W

Qts	0.630
no	0.070 %
SPL	81.170 dB
EBP	72