PRODUCT BRIEF
Model: M210S4
Type: Marine 10" Subwoofer
Power Rating: 200 Watts
Impedance: 4 ohms
Freq. Response: 40 - 250 Hz
Features
• True Marine Grade Compliance.
• 100% UV stable Centrex™ injection molded plastic parts.
• Injection molded mineral filled polypropylene cone body with UV inhibitors.
• UV & Salt-Fog resistant TPE (Thermo-Plastic Elastomer) surround.
•
1" (25mm) bridge mounted component grade coated aluminum alloy tweeter.
• 18 AWG Corrosion resistant removable Stainless Steel grill cover insert.
• Ultra-flexible fully insulated silicone lead wire.
• Proprietary corrossion resistant spring loaded push terminals.
• Moisture, tear and fatigue resistant aramid fiber spider.
• Linear high excursion matched motor magnetics and suspension design.
• Integrated Magnetic Shielding
• Removable trim ring/grill options. Available Black & White color options.
Recommended Applications
Tuning(Fb) System
-3dB (F
3
)
Thiele-Small Specifications
M210S4
2008
Enclosure
Volume (Vb) Port Dia. Port Length
An IB enclosure design represents an application where the compliance of the air volume within the
enclosure is greater than the compliance of the speaker's suspension (Vas). An infrasonic filter is
required for reliable performance in vented and infinite baffle designs.
Thiele-Small Specifications
Sealed:
21.2 0.75 60.3 0.77 60.6 - - - -
Inf. Baffle:
60.6 2.14 57.5 0.63 58.0 - - - -
Vented:
35.4 1.25 48.6 - 40.0 4 101.6 8.52 216.5
Qts: 0.57
Qes: 0.64
Qms: 9.00
Cms (mm/N): 0.119
Vas (L): 20.2
Mms (g): 105
Mmd (g): 101
Rms (kg/s): 3.3
Airload (g): 3.7
No (%): 0.28
SPL (dB - 1W/1M): 86.0
BL (T*M): 13.1
*Xmax
10
(mm):
10.0
Sd (cm2): 346
EBP: 70
Krm (mOhms): 0.7
Voice Coil Diameter: 1.95 49.53 inches | mm Erm: 0.82
Voice Coil Height: 0.98 24.9 inches | mm Kxm (mH): 4.1
Voice Coil Layers: layers Exm: 0.73
Magnetic Gap Height: 0.315 8.0 inches | mm Rem (Ohms): 1.86
Linear Excursion, pk-pk (Xmax): 0.665 16.9 inches | mm
3
Maximum Excursion, pk-pk: 1.89 48.0 inches | mm *
Magnet Weight: 54.4 1.54 oz. | kg
Woofer Displacement: 4.35 0.154 liters | cubic ft.
Net Weight: 12.3 5.6 lbs. | kg
Power Rating: 200 400 RMS | Peak
Above specifications and dimensions comply with the CEA-2031 standard.
SPL & Excursion (@100 Watts) - Impedance (@1 Watt)
Technical Specifications
4
All parameters are derived using a laser velocity
measurement method and verified with actual
measured Mmd and Re. All dual voice coil
models are wired in series. Xmax
10
represents
actual effective excursion at <10% THD.
Specifications subject to change without notice.
0
10
20
30
40
50
60
60.0
70.0
80.0
90.0
100.0
110.0
120.0
10 100 1000
Impedance (ohms)
Excursion (mm)
SPL (dB)
Frequency (Hz)
Vented Box SPL Infinite Baffle SPL Closed Box SPL
Closed Box Impedance Vented Box Impedance Closed Box Excursion
Infinite Baffle Impedance
Infinite Baffle Excursion
Above specifications and dimensions comply with the CEA-2031 standard.
RFPB- M210S4 (Rev B) DK
Specifications subject to change without notice.
4-Apr-08
Rockford Corporation • 600 South Rockford Drive • Tempe, AZ • 85281Rockford Corporation • 600 South Rockford Drive • Tempe, AZ • 85281
Rockford Corporation • 600 South Rockford Drive • Tempe, AZ • 85281
(4 pages)
(36 pages)
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