Craig,
The moving mass is probably not as important as the Fs and power handling of the tweeter. There are many fine tweeters that might be employed in Eric's designs. The SB tweeter is a huge bargain and a major factor in the tremendous value the DI's offer.
I mentioned before a ScanSpeak two way DIY in my past that used top shelf drivers costing well over $200 each. This was a design by a well respected individual in the DIY community. Crossover all hardwired with components far more expensive than what's in the DI's. Sold them in one year.
Moral of the story for me is that premium drivers do not a winner make. The art of speaker design is far more important. This is why the DI's deliver the goods.
The moving mass is probably not as important as the Fs and power handling of the tweeter. There are many fine tweeters that might be employed in Eric's designs. The SB tweeter is a huge bargain and a major factor in the tremendous value the DI's offer.
I mentioned before a ScanSpeak two way DIY in my past that used top shelf drivers costing well over $200 each. This was a design by a well respected individual in the DIY community. Crossover all hardwired with components far more expensive than what's in the DI's. Sold them in one year.
Moral of the story for me is that premium drivers do not a winner make. The art of speaker design is far more important. This is why the DI's deliver the goods.