Used Concrete Audio C38D2 8" Subwoofers D2 Ohm (set of 4

Used Concrete Audio C38D2 8" Subwoofers D2 Ohm (set of 4)

Subwoofers are in excellent used condition showing only minor cosmetic wear from mounting 

Subwoofers perform as they should and sound excellent in the proper enclosure. 

Very low useage pulled from a demo vehicle 

The listing price is for the purchase of a set of 4 subwoofers.   

Subwoofers are sold as is with no warranty   

Specs from the manufacturer

C38D2V2        Retail Price (each) $162.99 

Diameter: 8 inch
Basket: die-cast aluminum
Cone: non-pressed paper, foam surround, Bolt Down Ring
Leads: woven tinsel on spiders Voice coil: 2.5 inch 4 layer hi-temp
Motor Structure: 100 Oz. Y35 grade FEA  Optimized
Impedance: dual 2 ohms
Power: 500W RMS

Cut out: 7 1/8 inches.
Mounting depth: 5 inches deep.
SPL: 78.98 1W/1m
R(e): 2.093 Ohms
Q(ts): 0.9924
Q(es): 1.156
Q(ms): 7.034
L(e): 0.2602 mh(10k)
M(ms): 112.1 grams
V(as): 0.119 cu ft

Enclosure Spec’s

0.75 CUBIC FEET NET
9 SQUARE INCH PORT
19.5 INCHES DEEP
MUST ADD PORT DISPLACEMENT TO REAR CHAMBER
SPEAKER DISPLACEMENT 0.04 CUBIC FEET
MUST ADD SPEAKER DISPLACEMENT TO REAR CHAMBER