PW8D4
Edge Echo Pro series 8-Inch Dual 4-ohm Car Subwoofer, Peak Power: 800 Watts | RMS Power: 400 Watts
The 2-Inch 4-Layer black aluminum voice coil is designed for sound and wiring flexibility, efficient thermal heat management, high-strength construction, and high-temperature. They are coated with black glue that handles extremely high temperatures which allows our woofer to handle even more power than they are rated. 
The IMPP cone is super thick and strong. And the high density foam surround provides incredible sound quality with minimal distortion, black stitching reinforces the cone and ensures long life.
It features advanced and unique vertical and horizontal air flow cooling structural design for heat dissipation, which optimizes performance even further. 
Custom Edge basket, magnet cover & mounting gasket make it easy to mount the subwoofer Air-Tight.

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Test items
PW8D4 
UNIT
Nominal Impedance
4+4ohms
RMS Power Handling
400Watts
MAX Power Handling
800Watts
RMS Power Handling
2/50.8
Hz
Voice Coil Diameter
2/50.8
in/ mm
Winding Material
ASV
N/A
Diaphragm Material
IMPP
N/A
Frame Material
Steel
N/A
Magnet Material
Ferrite
N/A
Magnet Weight
1352/50
g/ Ounce
Xmax
0.35/8.8
in/mm
Small signal parameters (parallel connection)
Revc
1.6Ohm
Spl
82.6dB
FO39.7Hz
Qts0.58N/A
Qes0.65N/A
Qms5.6N/A
Rms3.3kg/s
Vas12.4L
nO0.11%
CP3223. 9
μF
Res28.2Ohm
Cms0.22mm/N
BL6.7N/A
Le0.66mH
Mms73.5g
Sd201.1cm2
Dimensions
Overall Depth
4.96/126
In/mm
Mounting Depth
4.13/105
In/mm
Overall Width
8.47/215
In/mm
Cutout Diameter
7.24/184
In/mm

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