Fountek NeoCd3.0 Ribbon Tweeter
  

110mm (4.33") Round Metal Flange, Black, Depth is 68mm (2.7")

Super strong Neodymium magnets
Build-in impedance conversion transformer
Effective from 1,400Hz upwards due to the large diaphragm area and low self-resonance.
Thin enforced sandwich ribbon diaphragm guarantees a high degree of signal fidelity and broad frequency response.
Low distortion factor, good power-handling capabilities, high linear impedance and amplitude frequency response and the broad frequency response range.
Flat impedance from 1,000 to 40,000Hz 

Factory matched pairs:

Although these are sold each, when you order two you will receive a matched pair.

Specifications

• Ribbon material: Enforced sandwich
• Ribbon mass: 18mg
• Ribbon dimension: 8mmX60mmX0.02mm
• Ribbon area: 480square millimeters
• Gap flux: 0.6 Tesla
• Gap height: 3mm
• Impedance: 7 Ohm
• DCR: 0.02 ohm
• Sensitivity: 95dB/M/W
• Frequency response: 1,400~40,000Hz
• Resonance frequency: 400Hz
• Power handling: 17W Normal, 40W Max
• Recommended crossover frequency: 2,500Hz / 2nd-Order

Warning:

Ribbon tweeters should always be used with a passive crossover!

Do not test without a capacitor.