• 6.25 inch bass-midrange for small bookshelf monitors or slim floorstanders
• small and light voice coil with 25mm titanium voice coil former for high midrange resolution  
• long excursion design for high SPL capabilities

Vented Box design parameters:

• Vb: 15L, Port diameter: 50mm, Length: 190mm, Fres: 41Hz, F-3dB: 45Hz, Q: 0.58 (typical)
• Vb: 22L, Port diameter: 50mm, Length: 130mm, Fres: 40Hz, F-3dB: 40Hz, Q: 0.50 (extended bass)
• Vb: 12L, Port diameter: 50mm, Length: 200mm, Fres: 45Hz, F-3dB: 49Hz, Q: 0.61 (0.7dB Ripple @ 100Hz)

Closed Box design parameters:

• Vb: 8.5L, -11dB @ 40Hz, F-3dB: 70Hz, Q: 0.71 (typical)
• Vb: 22L, -8.5dB @ 40Hz, F-3dB: 70Hz, Q: 0.50 (extended bass)

 
Mechanical Data:

• Overall diameter/square: 158 mm
  
• Cutout diameter/square: 137 mm
  
• Frontplate depth: 6,0 mm
  
• Overall depth: 82 mm
  
• Motor assembly depth: 34  mm
  
• Motor assembly diameter: 85  mm
  
• Screw fitting: DIN 7984, 4 mm
  
• Terminal: + : 6.3 x 0.8 / - : 4.8 x 0.8
• Shipping weight /net weight (one piece): 1.75 / 1.65 kg
  
• Shipping box size (pair): 180 / 180 / 240 mm

 
Thiele / Small Parameter:

• Sensitivity Lp (2.83V / 1m): 92 dB
• DC-resistance Re: 7,8 Ohm
  
• Resonance frequency Fs: 33 Hz
  
• Equivalent volume of air Vas: 35 L
  
• Mechanical Q Qms: 4,12
  
• Electrical Q Qes: 0,34
  
• Total Q Qts: 0,31
  
• Effective piston area Sd: 113 cm²
  
• Moving mass Mms: 11,6 g
  
• Suspension compliance Cms: 1,89 mm/N
  
• Mechanical resistance Rms: 0,53 kg * s

 
Voice Coil Data:

• Power handling P: 100 Watt
  
• Linear excursion xmax: +/- 5 mm
  
• Voice coil diameter: 25 mm
  
• Voice coil former material: Ti
  
• Voice coil material: Cu
  
• Voice coil inductance Le: 0,54 mH
  
• Force factor Bl: 7,5
  
• Motor type: Overhung