Fountek NeoCd3.0 Ribbon Tweeter

Fountek Electronics Co.

NeoCD3.0 3" Ribbon Tweeter (Available in round and rectangular flange.)

NeoCD3.0 ribbon tweeter is a high-performance component which is probably the best choice to building/upgrading your loudspeaker. Also a good choice as a super tweeter for a full range speaker.

Features:

Super strong Neodymium magnet fro high efficiency
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

Specifications (Click for pdf file)
Ribbon Material	Advanced composite material
Ribbon Mass	18mg
Ribbon Dimensions	8mm x 60mm x 0.02mm
Ribbon Area	480 square millimeters
Gap Flux	0.6 Tesla
Gap Height	3mm
Impedance	7 ohm
DCR	0.02 Ohm
Frequency Response	1,400Hz to 40,000Hz
Sensitivity	95dB / 2.83V@1M
Resonance Frequency	400Hz
Power Handling	17W Nominal, 40W Max
Recommended Crossover	2,500Hz @ 2nd Order
Price Each	$81.00

NeoCd3.0S (Rectangular)

Ribbon tweeters show a dead short to your amplifier! You must use a capacitor on them, when testing them or when using them with an electronic crossover!

Fountek Ribbon Testing Instructions

0.5W@0.5meter signal from 1,000Hz~40,000Hz - without capacitor, and must make sure amplifier is well connected with tweeter
Turn off the amplifier before suspending the connection, and power off amplifier is a must before connection.
We do not suggest Full Range Test, because in the low frequency the impedance of tweeter is almost zero - which is very easy to burn the tweeter and makes the amplifier overloaded
Users may use 200 millivolt to test frequency, never do any test below 200Hz