1.2" (3,05 cm) Cell Concept Keramik- Hochtöner

The C30 - 4 - 358 is a 1.2 inch tweeter with ultra hard ceramic dome in a 58 mm body. A proprietary clamping technique provides easy mounting and adapting to individual frontplates. As the dome breakup is above the audible range and well damped, no dome cutouts are required. A unique FEA optimized underhung motor design with vented aluminium voice coil former and double neodymium magnet guarantees low energy storage, excellent heat transfer and high excursion capability for low power compression and ultra low distortion around 0.07% @ 2.83V and 0.5% max. @ 110dB. The new designed soft fabric surround centers the moving parts with improved linearity. We recommend an application above 1800 Hz.

Mechanical Data:

• Overall diameter/square: 57.6 mm
  
• Cutout diameter/square: 58 mm
  
• Frontplate depth: 6 mm
  
• Overall depth: 29 mm
  
• Motor assembly depth: -
  
• Motor assembly diameter: -
  
• Screw fitting:  DIN 7984, 2 mm
  
• Terminal: + : 4,8 x 0.8 / - : 2.8 x 0.8
• Shipping weight /net weight (one piece): 0,48 / 0,38 kg
  
• Shipping box size (pair): 130 / 130 / 190 mm

Thiele / Small Parameter:

• Sensitivity Lp (2.83V / 1m): 93.5 dB
• DC-resistance Re: 5.8 Ohm
  
• Resonance frequency Fs: 810 Hz
  
• Equivalent volume of air Vas: -
  
• Mechanical Q Qms: 2.54
• Electrical Q Qes: 0.81
  
• Total Q Qts: 0,62
  
• Effective piston area Sd: 8,55 cm²
  
• Moving mass Mms: 0,28 g
  
• Suspension compliance Cms: 0,145 mm/N
  
• Mechanical resistance Rms: 0.97 kg * s

Voice Coil Data:

• Power handling P: 120 Watt
  
• Linear excursion xmax: +/- 1.2 mm
  
• Voice coil diameter: 16,4 mm
  
• Voice coil former material: Titanium
  
• Voice coil material: Cu
  
• Voice coil inductance Le: 0,01 mH
  
• Force factor Bl: 3.98
  
• Motor type: Underhung
• Ferrofluid filling: no