Video of W15K6D4 V2:

Wiring for 1 DVC 4 Ohm SUBS:

Wiring for 2 DVC 4 Ohm SUBS:

Features:

• Rockville W15K6D4 V2 K6 Series 15" Dual 4-Ohm Car Subwoofer
• Peak Power Handling: 4000 Watts
• Program Power Handling: 2000 Watts
  
• CEA Rated RMS Power Handling: 1000 Watts
• 3" Voice coils (Black Aluminum Former Wound with 100% OFC Copper Wire
• The wire we use is made in the USA! It is one of the most important components to make the sub high quality and last longer
• Double Stacked 112 Oz High Quality Magnet
• Cast Aluminum Basket With Black Sanded Finish Makes This Sub Very Efficient
• Fiber Reinforced Ultra Stiff Black Non-Pressed Paper Cone
• Thick Foam Surround Provides Incredible Sound Quality With Minimal Distortion
• Red Stitching Cone Reinforcement Ensures Long Life
• Polypropylene (PP) Dustcap
• Two Chrome-Plated Binding Post Terminals - These are the best terminals on the market and they accept any gauge wire
• Impedance: Dual 4-Ohm Voice Coils
• Vented Hole on T-yoke Enhances Heat Dissipation
• Special Custom Rubber Boot Magnet Covers Make the Woofer Look Nice and Protects the Magnet
• Custom Rockville Mounting Gasket Looks Beautiful 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: 14.09” inches
• Mounting Depth: 7.4” inches
• Frequency Response: 27 Hz - 1.5K kHz
• 8mm T-Yoke + 8mm Washer
• Sensitivity: 85dB
• Sealed Enclosure Volume: 1.85 - 3.0 Cubic Feet
• Vented/Ported Enclosure Volume: 2.75 - 4.0 Cubic Feet
• Weight: 19.84 Lbs.
• Shipping Weight: 24.25 Lbs.
• Shipping Box Dimensions: 18.19" x 18.19" x 13.19" Inches
• XMAX:24 MM (One way)

Detailed Info:

• Body: Non-Pressed Paper
• Gap Plate Inside Diameter: 90mm (3.54 inches)
• Gap Plate Outside Diameter: 156mm (6.14 inches)
• Gap Plate Thickness: 25mm (1 inch)
• Yoke Outside Diameter: 145mm (5.71 inches)
• Yoke Thickness: 8mm (0.31 inches)
• Yoke Pole Diameter: 70mm (2.8 inches)

TS Parameters:

TS Parameter	Wired in Series	Wired in Parallel	Description of Measurement
Electrical Parameters
Re	8.07 Ohm	2.05 Ohm	Electrical voice coil resistance at DC
Le	7.619 mH	1.907 mH	Frequency independent part of voice coil inductance
L2	11.216 mH	2.829 mH	Para-inductance of voice coil
R2	17.51 Ohm	4.44 Ohm	Electrical resistance due to eddy current losses
Cmes	784.26 µF	3145.99 µF	Electrical capacitance representing moving mass
Lces	22.28 mH	5.56 mH	Electrical inductance representing driver compliance
Res	54.75 Ohm	13.47 Ohm	Resistance due to mechanical losses
fs	38.1 Hz	38.1 Hz	Driver resonance frequency
Mechanical Parameters (Using Laser)
Mms	345.647 g	338.431 g	Mechanical mass of driver diaphragm assembly including air load and voice coil
Mmd (Sd)	319.142 g	311.927 g	Mechanical mass of voice coil and diaphragm without air load
Rms	8.05 kg/s	7.988 kg/s	Mechanical resistance of total-driver losses
Cms	0.051 mm/N	0.052 mm/N	Mechanical compliance of driver suspension
Kms	19.78 N/mm	19.35 N/mm	Mechanical stiffness of driver suspension
Bl	20.994 N/A	10.372 N/A	Force factor (Bl product)
Lambda s	0.066	0.069	Suspension creep factor
Loss Factors
Qtp	1.376	1.393	Total Q-factor considering all losses
Qms	10.271	10.131	Mechanical Q-factor of driver in free air considering Rms only
Qes	1.514	1.54	Electrical Q-factor of driver in free air considering Re only
Qts	1.319	1.337	Total Q-factor considering Re and Rms only
Other Parameters
Vas	48.0382 l	49.1035 l	Equivalent air volume of suspension
n0	0.168%	0.169%	Reference efficiency (2 pi-radiation using Re)
Lm	84.46 dB	84.48 dB	Characteristic sound pressure level (SPL at 1m for 1W @ Re)
Lnom	84.43 dB	84.38 dB	Nominal sensitivity (SPL at 1m for 1W @ Zn)
Sd	819.4 cm²	819.4 cm²	Diaphragm area
EBP	25.2	24.7	Efficiency bandwidth product