The Q65WF is a 6.5" (16.5 cm) mid-bass driver from STEG. One of its remarkable features is the powerful ferrite magnet that brings an ultra-light fiberglass membrane to life. The Q65WF offers you impressive sound quality with its fantastic efficiency of 89 dB/1Wm, supported by a high-temperature resistant voice coil. The ventilation of the aluminum die-cast basket and the low-loss rubber surround ensure long-lasting performance. Space-saving designed with a mounting depth of 67.5mm, this mid-bass driver fits easily into any setup.

properties 

• 6.5" (16.5cm) midrange driver
• very light fiberglass membrane
  
• low-loss rubber bead
• Impedance 4 Ohm 
• ventilated aluminum cast basket
• Polkern + air gap drilled
• RMS power 40
• Power Max 80
• 25.5 mm high-temperature vibrating coil
• Efficiency 89 dB/1Wm
  
• Resonance frequency fs: 46Hz
  
• Direct current resistance Re: 4.1 Ohm
  
• Total Quality Qts: 0.612
  
• very light fiberglass membrane
  
• low-loss rubber bead
  
• Outer diameter 170mm
  
• Installation diameter 147mm
• Circle 4 x 161mm
  
• Installation depth: 67.5mm