Rockville VS12K54 12" K5 1400w Car Subwoofer in Vented Sub Enclosure Box - 4 Ohm

Video of K5 SERIES:

Features:
Rockville VS12K54 Single 12" K5 1400w Car Subwoofer Pre-loaded In Vented Sub Enclosure
Peak Power Handling: 1400 Watts
Program Power Handling: 700 Watts
CEA Rated RMS Power Handling: 350 Watts
Final Impedance: 4 Ohm
¾” MDF enclosure
Bonded stapled and braced
Computer designed vents
Angled at 15 % for perfect bass alignment
High quality aviation grade tweed carpet
Satin Nickel speaker wire push terminals
Enclosure air space is 1.52 Cu Ft per sub
Vent dimensions (inches): 2.25" x 7" x 8.5"
Tuning frequency of enclosure: 35 Hz
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
50 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
Polypropylene Dustcap
Gold-Plated spring loaded push terminals
Impedance: Single 4-Ohm Voice Coils
Vented Hole on T-yoke Enhances Heat Dissipation
Mounting Gasket with Rockville branding makes it easy to mount the subwoofer air-tight
High BL Magnetic Motor Gap
High grade black glue that handles extremely high temperatures which allows our woofer to handle even more power
Cutout Diameter: 11.02” inches
Mounting Depth: 5.03” inches
Frequency Response: 25 Hz - 1.5K kHz
6mm T-Yoke + 6mm Washer
Sensitivity: 88dB
Weight: 10.1 Lbs.
Loaded enclosure weight: 37.4 Lbs.
Loaded enclosure dimensions (inches): 18.25” x 14.25” x 16.25”
Detailed Info:
Body: Non-Pressed Paper
Gap Plate Inside Diameter: 80mm (3.14 inches)
Gap Plate Outside Diameter: 156mm (6.14 inches)
Gap Plate Thickness: 25mm (0.98 inches)
Yoke Outside Diameter: 145mm (5.7 inches)
Yoke Thickness: 6mm (0.23 inches)
Yoke Pole Diameter: 50mm (2 inches)
T/S Parameters (Tested on a Klippel):
Electrical Parameters
Electrical voice coil resistance at DC: Re 3.31 Ohm
Requency independent part of voice coil inductance: Le 0.944 mH
Para-inductance of voice coil: L2 1.468 mH
Electrical resistance due to eddy current losses: R2 14.7 Ohm
Electrical capacitance representing moving mass: Cmes 871.67 μF
Electrical inductance representing driver compliance: Lces 20.9 mH
Resistance due to mechanical losses: Res 31.48 Ohm
Driver resonance frequency: fs 37.3 Hz
Mechanical Parameters
Using laser
Mechanical mass of driver diaphragm assembly including air load and voice coil: Mms 130.02 g
Mechanical mass of voice coil and diaphragm without air load: Mmd (Sd) 117.731 g