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
- Mechanical resistance of total-driver losses: Rms 4.738 kg/s
- Mechanical compliance of driver suspension: Cms 0.14 mm/N
- Mechanical stiffness of driver suspension: Kms 7.14 N/mm
- Force factor (Bl product): Bl 12.213 N/A
- Suspension creep factor: Lambda s 0.028
Loss factors
- Total Q-factor considering all losses: Qtp 0.612
- Mechanical Q-factor of driver in free air considering Rms only: Qms 6.429
- Electrical Q-factor of driver in free air considering Re only: Qes 0.675
- Total Q-factor considering Re and Rms only: Qts 0.611
Other Parameters
- Equivalent air volume of suspension: Vas 47.7813 (1)
- Reference efficiency (2 pi-radiation using Re): n0 0.353 %
- Haracteristic sound pressure level (SPL at 1m for 1W @ Re): Lm 87.67 dB
- Nominal sensitivity (SPL at 1m for 1W @ Zn): Lnom 88.5 dB
- Root-mean-square fitting error of driver impedance Z(f): rmse Z 3.94 %
- Root-mean-square fitting error of transfer function Hx (f): rmse Hx 2.2 %
- Diaphragm area: Sd 490.87 cm2
1 YEAR
- UPC:
- 819216024775
