Fountek Electronics Co.                               STONES SOUND STUDIO

Fountek  Neo pro 5i          5" Ribbon Tweeter 


NeoPro5i is a high power ribbon tweeter designed for High power Home Audio and Professional Audio. The ribbon diaphragm is made up from an advanced composite material, total thickness only 20 micrometers, normal operation temperature is 240 degree Celsius. This material provides extra strength and guard Aluminum layer do not oxidation. The diaphragm suspension make up from high temperature soft rubber material. It makes diaphragm keep optimum tension, and damping resonance from the ribbon. The magnetic strength determines efficiency in a ribbon transducer. NeoPro5i assembled 4 pieces highest quality Neodymium magnet in a heavy U-York. The surface magnetic strength is 1 Telsa. Typical ribbon diaphragm self-impedance is very low, so a practical ribbon tweeter must assemble an impedance matching transformer. The impedance matching transformer is very important to products consistency. All impedance matching transformers are hand built and 100% measured by high-precision instrument. Close quality control make sure product’s precision.
 

Super strong Neodymium magnet fro high efficiency
Build-in impedance conversion transformer
Effective from 850Hz 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
Ribbon material Enforced sandwich
Ribbon mass 88mg
Ribbon dimension 15mmX145mmX0.02mm
Ribbon area 2175square millimetres
Gap flux 1 Tesla
Gap height 5mm
Impedance 7Ohm
DCR 0.02 ohm
Sensitivity 102dB/2.83V@1M
Frequency response 850Hz ~ 40,000Hz
Resonance frequency 400Hz
Power handling 60W Normal, 120W Max
Recommended crossover frequency (minimum) 1.5KHz / 2nd-Order [min

 

APPLICATIONS
The Neo Pro 5i is an  "excellent value for money "  high sensitivity pure ribbon tweeter for high end home theatre and music speaker system applications.
The Neo Pro 5i Ribbon tweeter applications include Low to medium power High End class A Transistor / FET or Valve amplifiers using high efficiency Woofer / Tweeter speaker combinations. Thus enabling Triode/Pentode valve amplifiers with only a few watts of output power to reach incredible sound pressure levels with very low harmonic distortion. Due to the high power handling capabilities of the new Alloy sandwich diaphragm the Neo Pro 5i Ribbon tweeter can also be used for High End Studio or High power PA monitor speaker systems requiring the extra detail and distortion free sound and transient dynamics of a ribbon tweeter. The Neo Pro 5i is a true pure ribbon tweeter with incredible dynamics ,sound stage ,depth of field, midrange detail, and shimmering top end to kill for.  Russell Storey        Stones Sound Studio

Mounting information

 


Frequency Response




Impedance


Group Delay


 

Step response