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Product description
Rockville DV8K52 Dual 8″ K5 1600w Car Subwoofers+Vented Sub Enclosure Box/2 Ohm
Features:
Rockville DV8K52 Dual 8″ K5 1600w Car Subwoofers Pre-loaded In Vented Sub EnclosurePeak Power Handling: 1600 WattsProgram Power Handling: 800 WattsCEA Rated RMS Power Handling: 400 Watts, Final Impedance: 2 Ohm¾” MDF enclosureBonded stapled and braced, Computer designed ventsAngled at 15 % for perfect bass alignmentHigh quality aviation grade tweed carpet, Satin Nickel speaker wire push terminalsEnclosure air space is 0.8 Cu Ft per subVent dimensions (inches): 2.5″ x 6.75″ x 9.75″Tuning frequency of enclosure: 44 Hz1.5″ 4-Layer Black Aluminum Voice Coils Wound with OFC (100% Copper) WireThe wire we use to wind the voice coil is imported from Japan which is way better quality than the standard China wire30 Oz High Quality Magnet, Cast Iron Basket With Black Sanded FinishFiber 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 itThick Foam Surround Provides Incredible Sound Quality With Minimal DistortionBlue Stitching Cone Reinforcement Ensures Long LifePolypropylene Dust cap, Gold-Plated spring loaded push terminalsImpedance: Single 4-Ohm Voice Coils, Vented Hole on T-yoke Enhances Heat DissipationMounting Gasket with Rockville branding Makes it Easy To Mount the Subwoofer Air-TightHigh BL Magnetic Motor GapHigh grade black glue that handles extremely high temperatures which allows our woofer to handle even more powerCutout Diameter: 7.16 inches, Mounting Depth: 3.54 inchesFrequency Response: 44 Hz – 1.3K kHz5mm T-Yoke + 5mm Washer, Sensitivity: 85.7dBWeight: 37.7 Lbs.Dimensions of enclosure: 24.25″x 14.75″ x12″Shipping Weight: 43.1 Lbs.Shipping Box Dimensions: 25.4″ x 16.1″ x 14.1″
Detailed Info of subwoofer:
Body: Non-Pressed PaperGap 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
Electrical voice coil resistance at DC: Re 3.43 OhmFrequency independent part of voice coil inductance: Le 0.899 mHPara-inductance of voice coil: L2 1.32 mHElectrical resistance due to eddy current losses: R2 13.71 OhmElectrical capacitance representing moving mass: Cmes 610.26 μFElectrical inductance representing driver compliance: Lces 20.57 mHResistance due to mechanical losses: Res 34.13 Ohm, Driver resonance frequency: fs 44.9 Hz
Mechanical Parameters
Using laser
Mechanical mass of driver diaphragm assembly including air load and voice coil: Mms 54.697 gMechanical mass of voice coil and diaphragm without air load: Mmd (Sd) 51.475 gMechanical resistance of total-driver losses: Rms 2.626 kg/sMechanical compliance of driver suspension: Cms 0.229 mm/NMechanical stiffness of driver suspension: Kms 4.36 N/mmForce factor (Bl product): Bl 9.467 N/A, Suspension creep factor: Lambda s 0.046
Loss factors
Total Q-factor considering all losses: Qtp 0.538Mechanical Q-factor of driver in free air considering Rms only: Qms 5.879Electrical Q-factor of driver in free air considering Re only: Qes 0.591Total Q-factor considering Re and Rms only: Qts 0.537
Other Parameters
Equivalent air volume of suspension: Vas 13.1298 (1)Reference efficiency (2 pi-radiation using Re): n0 0.194 %Characteristic sound pressure level (SPL at 1m for 1W @ Re): Lm 85.07 dBNominal sensitivity (SPL at 1m for 1W @ Zn): Lnom 85.74 dBRoot-mean-square fitting error of driver impedance Z(f): rmse Z 4.04 %Root-mean-square fitting error of transfer function Hx (f): rmse Hx 2.29 %Diaphragm area: Sd 201.06 cm2
POWERFUL BASS: Dual 8″ K5 subs deliver 1600W peak/400W RMS combined, with a final 2-ohm load (dual 4-ohm subs wired in parallel) for strong, balanced bass output.
VENTED ENCLOSURE: 3/4″ MDF box with computer-designed vents angled at 15% ensures accurate bass alignment, efficient airflow, and consistent performance.
DURABLE COMPONENTS: Features 1.5″ 4-layer aluminum voice coils wound with Japanese OFC copper wire, 30 oz magnets, and gold-plated push terminals for reliability.
ENHANCED SOUND DESIGN: Fiber-reinforced non-pressed paper cone with blue stitching, polypropylene dust cap, and thick foam surround minimize distortion and add durability.
COMPACT INSTALLATION: Enclosure measures 24.25″ x 14.75″ x 12″ with 7.16″ cutout diameter, satin nickel push terminals, and Rockville-branded gasket for secure mounting.
$119.95