Spike Series Subwoofers feature a 3-layer voice coil former to handle some serious power. That means you can turn up the volume and still enjoy heart-pounding bass that’s free from distortion. You won’t believe the sound produced by the fiber matrix paper cone with mica coating – it’s like having a concert in your vehicle! Each Spike subwoofer comes with a protective grille to keep it safe from damage, so you can enjoy your journey with peace of mind.
Features
- High Excursion Design for Ultra-Low Bass
- Fiber Matrix Paper Cone with Mica Coating
- 3-Layer High Temp Voice Coil Former
- Dual Damping System for Linear Bass Reproduction
- Dual Dust Cap System for Enclosure Compression Control
- Efficient Heavy-Duty Motor Design
- Removable Subwoofer Grille Included
Specifications
Thiele/small parameters
Nominal Impedance (Z) 4 ohms
DC Resistance (Re) ]] 3.2 ohms
Resonance Frequency (Fs) 40.4239 Hz
Piston Area (Sd) 0.0491 m2
Force Factor (BL) 13.7286 T.m
Mechanical Q Factor (Qms) 6.5823
Electrical Q Factor (Qes) 0.8207
Total Q Factor (Qts) 0.7297
Sensitivity 1W/M (SPL) 85.4588
Mechanical Comp (Cms) 0.0815 mm/N
Moving Mass (Mms) 190.3035 g
Linear Excursion (Xmax) . 14 mm
Volume Acoustic Comp (Vas) 27.4067 Ltr/ 0.9678 cu ft
Reference Efficiency (NO.) 0.2118% RMS
Power (Pe) 500 Watts
Frequency Response 20-200 Hz
Voice Coil Diameter 2.5 in/63.5 mm
Displacement 0.0885 cu ft/ 2.506 Lt
In the box:
- SPK-12S4, Manual, Warranty
Dimensions:
- Overall Dimensions: 12.76in/ 324mm
- Cut Out Diameter: 11.125 in/ 282mm
- Mounting Depth: 6.14 in/ 156 mm
- Mounting Height (w/o Grille): 0.68in / 17.3mm
- Mounting Height (w/ Grille): 1.437in / 36.5mm
- Motor Diameter (w/ Cover): 6.41in / 163mm