There are many other factors, which need to be considered. How about Seas efficiency? If it's different from Vifa, you may change the balance of your speaker. I wouldn't change the drivers of high performance speaker. The maker definitely was matching the units or spec. ordered the units. The crossover was most likely balanced to match the particular drivers.
Free air resonance?
What is free air resonance and does it make a big difference if one tweeter's free air resonance is high or low? Would 1500 be better than 600 or vice versa? I am thinking of changing my Vifa's which came with my Hales T5's which have a free air resonance of 1500 or so to the Seas Millenium which has a free air resonance of 600.
Any explanation or advice would be greatly appreciated.
Any explanation or advice would be greatly appreciated.