Accuton C173-6-090

7" (17cm) Keramik Mitteltöner, Cutoffs, 6 Ohm

Highlights:

• 7 inch midrange with tissue suround with high efficiency  for 3 way designs
• large sized voice coil with 55mm titanium voice coil former for high midrange resolution 
• big, underhung 120mm Neodymium magnet system for very low distortion
• Anti-resonant cutout fills in the ceramic dome provide high damping of the 4 kHz dome resonance.

Vented box design parameters:

• Vb: 10L, Port diameter: 50mm, Length: 250mm, Fres: 45Hz, F-3dB: 51Hz, Q: 0.58 (optimal)
• Vb: 14,5L, Port diameter: 50mm, Length: 175mm, Fres: 43.5Hz, F-3dB: 44Hz, Q: 0.50 (extended bass)
• Vb: 8,5L, Port diameter: 50mm, Length: 260mm, Fres: 48Hz, F-3dB: 56Hz, Q: 0.61 (0.7dB Ripple @ 100Hz)

Closed Box design parameters:

• 2L, -13dB @ 80Hz, F-3dB: 160Hz, Q: 0.71 (typical)
• 4.5L, -10dB @ 80Hz, F-3dB: 170Hz, Q: 0.50 (clean transient response)

Mechanical Data:

• Overall diameter/square: 173 mm
  
• Cutout diameter/square: 145,6 mm
  
• Frontplate depth: 6,35 mm
  
• Overall depth: 96,35 mm
  
• Motor assembly depth: 44 mm
  
• Motor assembly diameter: 120 mm
  
• Screw fitting:  DIN 7984, 4 mm
  
• Terminal: + : 6.3 x 0.8 / - : 4.8 x 0.8
  
• Shipping weight /net weight (one piece): 3.76 / 3.44 kg
  
• Shipping box size (pair): 210 / 280 / 210 mm

Thiele / Small Parameter:

• Sensitivity Lp (2.83V / 1m): 93 dB
  
• DC-resistance Re: 6.61 Ohm
  
• Resonance frequency Fs: 57 Hz
  
• Equivalent volume of air Vas: 15.5 L
  
• Mechanical Q Qms: 3.75
  
• Electrical Q Qes: 0.26
  
• Total Q Qts: 0.26
  
• Effective piston area Sd: 133 cm²
  
• Moving mass Mms: 14 g
  
• Suspension compliance Cms: 0.56 mm/N
  
• Mechanical resistance Rms: 1.32 kg * s

Voice Coil Data:

• Power handling P: 120 Watt
  
• Linear excursion xmax: +/- 5 mm
  
• Voice coil diameter: 55 mm
  
• Voice coil former material: Ti
  
• Voice coil material: Cu
  
• Voice coil inductance Le: 0.19 mH
  
• Force factor Bl: 11.6
  
• Motor type: Underhung
  
• Ferrufluid filling: no