• Rainbow compound-rubber W-surround, with low distortion and high excursion and linearity.
• Light and strong multi layer foam cone, to prevent resonances on surface, coated by hand.
• Full aluminum phase plug, designed to optimize frequency response and additional cooling.
• Symmetric lead wire spider, to prevent coil wobbling.
• Titan 37 mm diameter voice coil former with CCA coil wire, to reduce moving mass and
• low Rms.
• Copper control rings, to optimize impedance and very low distorsions.
• Aluminum-die-cast basket, designed for high linear excursion and optimized airflow.
• Multi vented magnet system prevent thermal compression.
• Speaker screw terminal for 8 mmSq speaker cables.

Technical Specification

• Impedance: 4Ohm
• Handling Power: 180w
• Resonance frequency: 38Hz
• Frequency response: 35Hz-5kHz @18dB
• Vas: 14l
• Qts: 0.5
• Qms: 4.96
• Qes: 0.58
• Re: 3.6Ohm
• SPL 1W/1 Meter: 88dB
• Xmax +/-: 7mm
• Outer Diameter: 166mm
• Mounting Diameter: 143mm
• Mounting Depth: 78mm
• Weight:1200g 
• Recommended Enclosure (sealed): Min:12l / Optimal:16l