Audio Control SPK-8S4 Spike Series 8-Inch Single 4-Ohm High-Performance Subwoofer

Spike Series 8-Inch Single 4-Ohm High-Performance Subwoofer

Get ready to immerse yourself in the deep, rumbling bass with the Spike Series Subwoofers from AudioControl. With over 45 years of expertise, AudioControl delivers high-performance subwoofers designed to elevate any vehicle's sound system.

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

Pairings:

• A single Spike Series 4 ohm subwoofer pairs ideally with the ACM-2.300 or ACX-300.2 amplifiers for conservative to moderate listeners. For more imposing output, consider the LC-1.800 amplifier.
• LC-5.1300 or D-5.1300 amplifiers provide esteemed output, with channel 5 being a fantastic match.
• For systems with two Spike Series 4 ohm subwoofers, the LC-1.800 amplifier is recommended.
• Consult an expert for configurations with three or more subwoofers.

Specifications (Thiele/Small Parameters):

• Nominal Impedance (Z): 4 ohms
• DC Resistance (Re): 3.2 ohms
• Resonance Frequency (Fs): 60.3665 Hz
• Piston Area (Sd): 0.0194 m2
• Force Factor (BL): 11.3310 T.m
• Mechanical Q Factor (Qms): 5.4933
• Electrical Q Factor (Qes): 0.8733
• Total Q Factor (Qts): 0.7535
• Sensitivity 1W/M (SPL): 81.9876
• Mechanical Compliance (Cms): 0.0752 mm/N
• Moving Mass (Mms): 92.3784 g
• Linear Excursion (Xmax): 8.5 mm
• Volume Acoustic Compliance (Vas): 3.9378 Ltr/0.1390 Cu ft
• Reference Efficiency (NO.): 0.0952%
• RMS Power (Pe): 350 Watts
• Frequency Response: 30-500 Hz
• Voice Coil Diameter: 2.0 in/50.8 mm
• Displacement: 0.05 cu ft/1.44Ltr

In the Box:

• SPK-8S4 Subwoofer
• Manual
  

Dimensions:

• Overall Dimensions: 23.00″ W × 11.50″H × 12.00″D
• Cut Out Diameter: 7.25 in/184 mm
• Mounting Depth: 4.291in/109 mm
• Mounting Height (w/o Grille): 0.55in/14mm
• Mounting Height (w/ Grille): 1.18in/30mm
• Motor Diameter (w/ Cover): 5.55in/141mm
• Weight: 7lbs

Ported Enclosure:

• External Dimensions: 23.00″ W × 11.50″H × 12.00″D
• Net Internal Volume: 0.89 ft3
• Total Internal Volume: 1.22 ft3
• Gross External Volume: 1.84 ft3
• Material Thickness: 0.75″
• Tuning Frequency: 40 Hz
• Port Area: 17.50 inch2
• Port Inlet: 1.75″W×10.00″H
• Port Length: 28.00″
• F3 (Hz): 34

Sealed Enclosure:

• External Dimensions: 14.50″ W × 10.00″H × 10.00″D
• Net Internal Volume: 0.49 ft3
• Total Internal Volume: 0.54 ft3
• Gross External Volume: 0.84 ft3
• Material Thickness: 0.75″
• F3 (Hz): 69.04
• Qtc: 0.86

(Note: Enclosure size recommendations exclude driver and/or port displacement)