Rockville K5 W8K5S4 8 800w 4 Ohm Car Audio Subwoofer Sub 200w RMS CEA Rated!

Video of K5 SERIES:

Features:
Rockville W8K5S4 K5 Series 8 4-Ohm Car Subwoofer
Peak Power Handling: 800 Watts
Program Power Handling: 400 Watts
CEA Rated RMS Power Handling: 200 Watts
1.5 4-Layer Black Aluminum Voice Coils Wound with OFC (100% Copper) Wire
The wire we use to wind the voice coil is imported from Japan which is way better quality than the standard China wire
30 Oz High Quality Magnet
Cast Iron Basket With Black Sanded Finish
Fiber Reinforced Ultra Stiff Black Non-Pressed Paper Cone ?C This cone is very efficient which makes the speaker sound louder even without requiring a lot of power to push it
Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion
Blue Stitching Cone Reinforcement Ensures Long Life
Paper Dust cap is light weight and efficient helping the sub to play louder even if your amp is not so powerful
Chrome-Plated Binding Post Terminals – These are the best terminals on the market and they accept any gauge wire
Impedance: Single 4-Ohm Voice Coils
Vented Hole on T-yoke Enhances Heat Dissipation
Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet
Mounting Gasket with Rockville branding looks great and Makes it Easy To Mount the Subwoofer Air-Tight
High BL Magnetic Motor Gap
We use the highest grade black glue that handles extremely high temperatures which allows our woofer to handle even more power than they are rated
Cutout Diameter: 7.16 inches
Mounting Depth: 3.54 inches
Frequency Response: 37 Hz – 1.3K kHz
5mm T-Yoke + 5mm Washer
Sensitivity: 85.7dB
Sealed Enclosure Volume: 0.35 ?C 0.85 Cubic Feet
Vented/Ported Enclosure Volume: 0.6 ?C 1.2 Cubic Feet
Weight: 5.2 Lbs.
Shipping Weight: 6.5 Lbs.
Shipping Box Dimensions: 10.25x 10.25 x 8.1 Inches
Detailed Info:
Body: Non-Pressed Paper
Gap Plate Inside Diameter: 60mm (2.36 inches)
Gap Plate Outside Diameter: 120mm (4.72 inches)
Gap Plate Thickness: 25mm (0.98 inches)
Yoke Outside Diameter: 114mm (4.48 inches)
Yoke Thickness: 5mm (0.20 inches)
Yoke Pole Diameter: 38mm (1.5 inches)
T/S Parameters (Tested on a Klippel):
Electrical Parameters
 
 
 
Re
3.43
Ohm
electrical voice coil resistance at DC
Le
0.899
mH
frequency independent part of voice coil inductance
L2
1.32
mH
para-inductance of voice coil
R2
13.71
Ohm
electrical resistance due to eddy current losses
Cmes
610.26
??F
electrical capacitance representing moving mass
Lces
20.57
mH
electrical inductance representing driver compliance
Res
34.13
Ohm
resistance due to mechanical losses
fs
44.9
Hz
driver resonance frequency
 
&nb

• Features: Rockville W8K5S4 K5 Series 8 4-Ohm Car Subwoofer. Peak Power Handling: 800 Watts. Program Power Handling: 400 Watts. CEA Rated RMS Power Handling: 200 Watts. 1.5 4-Layer Black Aluminum Voice Coils Wound with OFC (100% Copper) Wire. The wire we use to wind the voice coil is imported from Japan which is way better quality than the standard China wire. 30 Oz High Quality Magnet. Cast Iron Basket With Black Sanded Finish
• Fiber Reinforced Ultra Stiff Black Non-Pressed Paper Cone – This cone is very efficient which makes the speaker sound louder even without requiring a lot of power to push it. Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion. Blue Stitching Cone Reinforcement Ensures Long Life. Paper Dust cap is light weight and efficient helping the sub to play louder even if your amp is not so powerful
• Chrome-Plated Binding Post Terminals – These are the best terminals on the market and they accept any gauge wire. Impedance: Single 4-Ohm Voice Coils. Vented Hole on T-yoke Enhances Heat Dissipation. Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet. Mounting Gasket with Rockville branding looks great and Makes it Easy To Mount the Subwoofer Air-Tight. High BL Magnetic Motor Gap
• We use the highest grade black glue that handles extremely high temperatures which allows our woofer to handle even more power than they are rated. Cutout Diameter: 7.16 inches. Mounting Depth: 3.54 inches. Frequency Response: 37 Hz – 1.3K kHz. 5mm T-Yoke + 5mm Washer. Sensitivity: 85.7dB. Sealed Enclosure Volume: 0.35 – 0.85 Cubic Feet. Vented/Ported Enclosure Volume: 0.6 – 1.2 Cubic Feet. Weight: 5.2 Lbs.. Shipping Weight: 6.5 Lbs.. Shipping Box Dimensions: 10.25x 10.25 x 8.1 Inches
• Detailed Info: Body: Non-Pressed Paper. Gap Plate Inside Diameter: 60mm (2.36 inches). Gap Plate Outside Diameter: 120mm (4.72 inches). Gap Plate Thickness: 25mm (0.98 inches). Yoke Outside Diameter: 114mm (4.48 inches). Yoke Thickness: 5mm (0.20 inches). Yoke Pole Diameter: 38mm (1.5 inches)