Ribbons cross over at a higher frequency due to distortion limitations. This is one reason that you see many ribbon "supertweeters". Domes typically measure better mainly because of the distortion at lower frequencies. So your crossover would need to be changed, a resistor added or value changed will not cut it. Also the Hi Vi are not very good ribbons compared to the BG neo3 or the Fountek, Aurum Cantus etc.
