Nakamichi 12" Shallow Subwoofer 4 Ohm NSW-X1203S4

The perfect subwoofer for minimally spaced vehicles, this 12" Shallow Subwoofer can produce amazing quality sound with a compact design. With these subwoofers, vehicle owners can bring out the same intense sound that larger vehicles can achieve using full-sized subwoofers. Its slim structure gives you clear cut audio while still giving you that full-bodied resonance that these subs produce.

Features

• Nominal diameter: 12"
• Nominal impedance: 4 Ohm
• Peak Power: 1250W
• Power rating: 250W RMS
• Sensitivity: 83 + 3 dB
• Frequency range: 40-2.4K Hz
• Voice coil diameter: 50mm
• Voice coil length: 18mm
• Air gap height: 8mm
• Magnet dimension: 140 x 20mm
• Resonant frequency, FS: 40+3Hz
• D.C. Voice coil resistance, RE: 3.6 Ohm
• Mechanical quality factor, Qms: 6.528
• Electrical quality factor, Qes: 1.251
• Total quality factor, Qts: 1.050
• Equivalent air volume to Cms, Vas: 0.868 ft
• Mechanical compliance, Cms: 63.356
• BL factor, BI: 13.458 T/m
• Effective surface area, Sd: 52.3 
• Linear excursion, xmax: 5mm
• Basket: Die cast iron
• Cone and dust cap: PP injection and aluminum
• Surround: Treated foam
• Voice coil wire: SV
• Voice coil bobbin: Aluminum
• Magnet: Ferrite
• Overall diameter: 320mm
• Bolt circle diameter: 300mm
• Baffle cutout diameter: 286mm
• Depth: 89mm

Nakamichi 12" Shallow Subwoofer 4 Ohm NSW-X1203S4

The perfect subwoofer for minimally spaced vehicles, this 12" Shallow Subwoofer can produce amazing quality sound with a compact design. With these subwoofers, vehicle owners can bring out the same intense sound that larger vehicles can achieve using full-sized subwoofers. Its slim structure gives you clear cut audio while still giving you that full-bodied resonance that these subs produce.

Features

• Nominal diameter: 12"
• Nominal impedance: 4 Ohm
• Peak Power: 1250W
• Power rating: 250W RMS
• Sensitivity: 83 + 3 dB
• Frequency range: 40-2.4K Hz
• Voice coil diameter: 50mm
• Voice coil length: 18mm
• Air gap height: 8mm
• Magnet dimension: 140 x 20mm
• Resonant frequency, FS: 40+3Hz
• D.C. Voice coil resistance, RE: 3.6 Ohm
• Mechanical quality factor, Qms: 6.528
• Electrical quality factor, Qes: 1.251
• Total quality factor, Qts: 1.050
• Equivalent air volume to Cms, Vas: 0.868 ft
• Mechanical compliance, Cms: 63.356
• BL factor, BI: 13.458 T/m
• Effective surface area, Sd: 52.3 
• Linear excursion, xmax: 5mm
• Basket: Die cast iron
• Cone and dust cap: PP injection and aluminum
• Surround: Treated foam
• Voice coil wire: SV
• Voice coil bobbin: Aluminum
• Magnet: Ferrite
• Overall diameter: 320mm
• Bolt circle diameter: 300mm
• Baffle cutout diameter: 286mm
• Depth: 89mm