18 Sound’s 10W650 ceramic low frequency transducer is a 10-inch woofer that combines excellent linearity with high power handling capabilities (700 W) and reduced power compression. The 65mm (2.5 in) state-of-the-art voice coil assembly incorporates a fine edge-wound aluminum wire together with a strong fiberglas former to get the necessary force factor, mass lightness and high power handling. The voice coil is cooled using airways between the chassis back plate and the magnet face plate, which allow heated air from the voice coil and gap to be channeled away and dissipated by the chassis basket. This technology is another product of 3D CAD resource application by our engineers. The magnetic structure has also been optimized using our in-house FEA CAD resource which has maximized the flux density in the voice coil gap.
A distortion reduction system has been implemented using a demodulating ring for flux modulation cancellation related to voice coil excursion.
The cone is treated against extremely aggressive environment conditions and is carried by a double half-roll suspension composed of a material which is more resistant to aging and fatigue than traditional materials, providing the correct damping and excursion control.
Mounting and Shipping Info
Nominal Diameter260 mm ( in)
Nominal Impedance16 Ω
Minimum Impedance5.8 Ω
Nominal Power Handling1250 W
Continuous Power Handling2500 W
Frequency Range55 - 5700 Hz
Voice Coil Diameter65 mm (2.5 in)
Woofer Cone TreatmentWeather protected
Recommended Enclosure25.0 dm3 (0.88 ft3)
Recommended Tuning70 Hz
Resonance Frequency64 Hz
Vas27.0 dm3 (0.95 ft3)
Sd350.0 cm2 (54.25 in2)
Overall Diameter260 mm (10.24 in)
Bolt Circle Diameter244 mm (9.61 in)
Baffle Cutout Diameter230.0 mm (9.06 in)
Depth121 mm (4.76 in)
Flange and Gasket Thickness9 mm (0.35 in)
Net Weight4.3 kg (9.48 lb)
Shipping Weight5.5 kg (12.13 lb)
Shipping Box275 x 275 x 170 mm (10.83x10.83x6.69 in)
2 hours test made with continuous pink noise signal within the range Fs-10Fs. Power calculated on rated minimum impedance. Loudspeaker in free air.
Power on Continuous Program is defined as 3 dB greater than the Nominal rating.
Applied RMS Voltage is set to 2.83 V for 8 ohms Nominal Impedance.