JL Audio M6-8IB-C-GwGw-4 8″ marine subwoofer 4 Ω, Classic grille, white

Description

Features:
Size: 8″ / 20cm
Power: 200RMS
Impedance: 4 Ω
Cutout diameter: 187mm
Mounting depth: 127mm
Recommended sealed enclosure: 56.6L
Recommended ported enclosure: 42.5 L

Free Air Resonance (Fs) 54.92 Hz
Electrical “Q” (Qes) 0.852
Mechanical “Q” (Qms) 10.314
Total Speaker “Q” (Qts) 0.787
Equivalent Compliance (Vas) 0.54 cu ft / 15.29 L
One-Way Linear Excursion (Xmax)* 0.53 in / 14 mm
Reference Efficiency (no) 0.28%
Efficiency (1 W / 1 m)** 86.7 dB SPL
Effective Piston Area (Sd) 35.15 sq in / 0.0227 sq m
DC Resistance (Re) 2.993 Ω