- 4-inch, fiberglass former, edgewound aluminum voice coil
- 700W continuous program power handling
- 101 dB Sensitivity
- 60 Hz – 2 kHz Frequency range
- Shaped Shallow Triple-roll damped surround
- Inverted dust cap
Very high efficiency and extended linearity are special features of this mid-bass transducer. Very efficient heat dissipation is ensured by a radiator that is part of the basket design. The aluminum voice coil offer a properly aligned Q factor and a very high sensitivity. A specially designed Shallow Triple-roll surround guarantee a very low midrange distortion. Fiberglass former voice coil, polycotton suspensions and treated cone provide the very high power handling.
- General specifications
- Nominal Diameter: 12 inch / 305 mm
- Rated Impedance: 8 ohm
- Program Power: 700 W
- Power handling capacity: 350 W
- Sensitivity: 101.0 dB
- Frequency range: 60 – 2000 Hz
- Effective piston diameter: 260 mm / 10.24 inch
- Max. Excursion Before Damage: 40 mm / 1.57 inch
- Minimim Impedance: 7.2 ohm
- Voice Coil Diameter: 4.0 inch / 102 mm
- Voice Coil Winding Material: Aluminium
- Voice Coil Length: 12 mm / 0.47 inch
- Number of layers: 1
- Kind of layers: outside
- Top Plate Thickness: 10 mm / 0.39 inch
- Cone Design: Curved
- Surround Material: Polycotton
- Surround Design: Triple roll
- Magnets: Ceramic
- Spider: Single
- Thiele – small parameters
- Resonance frequency (Fs): 62 Hz
- DC resistance (Re): 5.20 ohm
- Mechanical factor: 4.10 Qms
- Electrical factor (Qes): 0.29 Qes
- Total factor: 0.27 Qts
- BL factor (BL): 18.80 T x m
- Effective moving mass (Mms): 50.0 g
- Equivalent Cas air loaded (Vas): 52.0 liters
- Effettive piston area (Sd): 0.050 m2
- Max. linear excursion (Xmax): 4.0 mm
- Voice coil inductance @ 1kHz (Le1k): 1.25 mH
- Half-space efficency (Eff): 4.12%
- Mounting Information
- Overall diameter: 320 mm / 12.6 inches
- Bolt circle diameter: 296-304 mm / 11.65-11.97 inch
- Bolt hole diameter: 7 mm / 0.28 inch
- Front mount baffle cut-out: 286 mm / 11.26 inch
- Rear mount baffle cut-out: 284 mm / 11.18 inch
- Volume occupied by the driver: 2.9 liters / 0.11 ft3
- Standard compliance
- CE marking: Yes
- Physical specifications
- Color: Black
- Size
- Weight: 11.4 kg / 25.13 lbs
- Height: 138 mm / 5.43 inches
- Diameter: 320 mm / 12.6 inches
- Shipping informations
- Package Width: 360 mm / 14.17 inches
- Package Weight: 12.4 kg / 27.34 lbs
- Package Height: 210 mm / 8.27 inches
- Package Depth: 360 mm / 14.17 inches
