Video of MS40:
What's In the Box:
- 2 Speakers
- Installation Hardware: (8 Stainless Steel Screws + 8 Stainless Steel Speed Clips)
- Mounting Template
- Owner's Manual
- Warranty Card
Features:
- Pair Rockville MS40B 4" 200 Watt Waterproof Marine Boat Speakers
- Peak Power: 200 Watts per pair / 100 Watts each
- RMS Power: 50 Watts per pair / 25 Watts each
- Color: Black
- Injection Molded Polypropylene Cone
- Aluminum voice coil with ASV winding
- Cloth surrounds
- Impedance: 4 Ohm
- Frequency Response: 122Hz – 20 Khz
- Sensitivity: 85dB @1w/1m
- High quality magnet: 3.5 Oz Y30 Ferrite magnet
- 1” inch ASV voice coil
- IP56 waterproof rating
- Fully Marinized Against Salt & Fresh Water Conditions
- Completely Waterproof and rustproof at level IP56
- Anti-UV molded ABS plastic basket & grill
- Pre-installed mounting screws included
- Perfect for marine, outdoor, and car use
- 1” inch Tweeter: (Mylar Diaphragm with NdFeB magnet)
- Injection Molded Polypropylene Dust Cap
- SPL: 85dB ± 2dB (at 1M / 1W)
- Resonant Frequency (F0) 122Hz + or – 20% at 1V
- 3MM plate and 3 MM T-yoke
- Total Diameter: 5.12”
- Cutout Diameter in Inches for Mounting: 3.66”
- Total Height: 2.36”
- Mounting Depth in inches:1.57’’
- Shipping weight: 1.76 Lbs
- Shipping Dimensions:6” x 6” x 5.7”
T/S Parameters:
- Magnet details: F60*F24*8 Y30
- Fs: 154.7 Hz
- Re: 3.2 ohms
- Qes: 2.57
- Qts: 1.611
- Qms: 4.315
- Vas: 0.847L
- Cms: 210.222UM/N
- Bl: 2.468T
- MMS: 5.029g
- XMAX: 1.5 mm
- SD: 54 cm2
