Package Includes:

• (2) Rockville K5 W10K5S4 10" 1200w 4 Ohm Car Audio Subwoofer Sub 300w RMS CEA Rated!

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Video of K5 SERIES:

Features:

• Rockville W10K5S4 K5 Series 10" 4-Ohm Car Subwoofer
• Peak Power Handling: 1200 Watts
• Program Power Handling: 600 Watts
• CEA Rated RMS Power Handling: 300 Watts
• 2" 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
• 40 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: 9.05 inches
• Mounting Depth: 4.52 inches
• Frequency Response: 28 Hz - 1.3K kHz
• 6mm T-Yoke + 6mm Washer
• Sensitivity: 87.7dB
• Sealed Enclosure Volume: 0.5 – 1.3 Cubic Feet
• Vented/Ported Enclosure Volume: 0.9 – 1.6 Cubic Feet
• Weight: 7.8 Lbs.
• Shipping Weight: 9.3 Lbs.
• Shipping Box Dimensions: 11.42x 11.42 x 8.26 Inches

Detailed Info:

• Body: Non-Pressed Paper
• Gap Plate Inside Diameter: 70mm (2.75 inches)
• Gap Plate Outside Diameter: 140mm (5.51 inches)
• Gap Plate Thickness: 25mm (0.98 inches)
• Yoke Outside Diameter: 130mm (5.11 inches)
• Yoke Thickness: 6mm (0.23 inches)
• Yoke Pole Diameter: 50mm (2 inches)

T/S Parameters (Tested on a Klippel)

Electrical Parameters
Re	3.41	Ohm	electrical voice coil resistance at DC
Le	0.905	mH	frequency independent part of voice coil inductance
L2	1.701	mH	para-inductance of voice coil
R2	16.06	Ohm	electrical resistance due to eddy current losses
Cmes	576.8	μF	electrical capacitance representing moving mass
Lces	29.57	mH	electrical inductance representing driver compliance
Res	37.39	Ohm	resistance due to mechanical losses
fs	38.5	Hz	driver resonance frequency
Mechanical Parameters
(using laser)
Mms	90.416	g	mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd (Sd)	84.124	g	mechanical mass of voice coil and diaphragm without air load
Rms	4.192	kg/s	mechanical resistance of  total-driver losses
Cms	0.189	mm/N	mechanical compliance of driver suspension
Kms	5.3	N/mm	mechanical stiffness of driver suspension
Bl	12.52	N/A	force factor (Bl product)
Lambda s	0.022		suspension creep factor
Loss factors
Qtp	0.438		total Q-factor considering all losses
Qms	5.222		mechanical Q-factor of driver in free air considering Rms only
Qes	0.477		electrical Q-factor of driver in free air considering Re only
Qts	0.437		total Q-factor considering Re and Rms only
Other Parameters
Vas	26.3507	l	equivalent air volume of suspension
n0	0.304	%	reference efficiency (2 pi-radiation using Re)
Lm	87.03	dB	characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom	87.72	dB	nominal sensitivity (SPL at 1m for 1W @ Zn)
rmse Z	3.97	%	root-mean-square fitting error of driver impedance Z(f)
rmse Hx	2.28	%	root-mean-square fitting error of transfer function Hx (f)
Sd	314.16	cm2	diaphragm area

Owner's Manual