Erik, Few questions.
1. Isn’t crossing at 2kHz or lower in the range of female voice, that has fundamentals between 350Hz and 3kHz?
2. Isn’t crossing below 2kHz to close to resonance of most tweeters? I’ve read recommendation to keep crossover frequency at least 1-2 octaves above tweeter’s resonance.
3. Break-up modes for typical woofer might be around 5kHz. Isn’t cutting at 2kHz too close - especially for 6dB/octave? In comparison my 3-way speakers cut at 230Hz and 3kHz - outside of "sensitive" zone.
Also, I agree with you that small sweet spot, caused by beaming, might be advantage in acoustically bad rooms, but that’s only if you listen alone. For me wide sweet spot is very important. If I’m not mistaken beaming for 6.5" drivers starts around 1.5kHz. Crossing at 2kHz or lower might help but you need tweeter with very low resonance frequency. I’m not sure what it is, since I don’t design speakers but suspect that it is around 1kHz. My speakers should beam (6.5" midrange) but they have wide sweet spot. Perhaps weird design of the midrange makes a difference (ferrofluid instead of spider web suspension and the wide flat disk instead of dust cap)
http://www.hyperionsound.com/Images/HPS-938.jpg
1. Isn’t crossing at 2kHz or lower in the range of female voice, that has fundamentals between 350Hz and 3kHz?
2. Isn’t crossing below 2kHz to close to resonance of most tweeters? I’ve read recommendation to keep crossover frequency at least 1-2 octaves above tweeter’s resonance.
3. Break-up modes for typical woofer might be around 5kHz. Isn’t cutting at 2kHz too close - especially for 6dB/octave? In comparison my 3-way speakers cut at 230Hz and 3kHz - outside of "sensitive" zone.
Also, I agree with you that small sweet spot, caused by beaming, might be advantage in acoustically bad rooms, but that’s only if you listen alone. For me wide sweet spot is very important. If I’m not mistaken beaming for 6.5" drivers starts around 1.5kHz. Crossing at 2kHz or lower might help but you need tweeter with very low resonance frequency. I’m not sure what it is, since I don’t design speakers but suspect that it is around 1kHz. My speakers should beam (6.5" midrange) but they have wide sweet spot. Perhaps weird design of the midrange makes a difference (ferrofluid instead of spider web suspension and the wide flat disk instead of dust cap)
http://www.hyperionsound.com/Images/HPS-938.jpg