STONES SOUND STUDIO
Fountek Ribbon Tweeter 2way Crossover Neo Pro 5i
2 Way High SPL
Speaker for Audio and Hometheatre speaker systems
The STONES Fountek Ribbon crossover schematic
below can used as a general starting point for most 8ohm nominal 2 way high
end ribbon speaker systems.
The Ribbon Crossover is set around 95 db Spl average power level so changing the valve of R2 to lower valves of 22 or 15 ohm with add further attenuation for level attenuation for level matching lower sensitivity bass/mid speaker systems .To increase the ribbon level to around 97 db Spl average power level remove R2 22ohm resistor. The tweeter phase ( polarity) may have to be reversed in some systems so Its a matter of experiment with polarity and component values to achieve your own personal sound quality and signature .
I recommend the use of quality components for this or any ribbon crossover design . The sound quality and sound signature of the components all interact with each other and the crossover electronic design to ultimately determine the end sound quality ,distortion ,dynamic range and low level detail.
I also recommend the following brands and type of component to be used in the tweeter crossover. WES NL non inductive resistors , SCR MKP 400V capacitors ,Solen Air Core or XLA Inductor ,QED Xtube 350 for Tweeter wiring QED Xtube 400 for Bass Mid wiring, Eichmann Copper Speaker Terminals