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Speaker Asylum General speaker questions for audio and home theater. |
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Speaker Asylum General speaker questions for audio and home theater. |
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In Reply to: This rule is too strict. posted by sser2 on January 22, 2007 at 18:54:32:
It's a technical and theoretical rule of thumb, based on an arbitrary assumption about how much phase and amplitude mismatch is acceptable. It's not intended as a practical approach. The fact that suitable drivers are not available does not affect the physics! :^) Most practical approaches will recognize that the actual acoustic crossover will be a higher order than the electrical first-order network. In fact, this is a mainstay of the inexpensive speaker business - one can obtain a pretty decent higher-order acoustic crossover with few crossover components if the drivers have suitable complementary rolloffs.I did design a 2-way within these parameters. It has not been built yet, but someone is planning to try it. I used a 4 or 5 inch "fullrange" as tweeter, and four 5-inch fullranges as woofer, crossing at 800 Hz.
Several decades ago, I made a similar system with four small woofers and the 1.5-inch KEF dome tweeter (was it called the T15?), crossed at 1500. This was not really enough overlap, and you could hear some coloration in the midrange, but overall it did sound pretty decent.
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Follow Ups
- Re: This rule is too strict. - Paul Joppa 11:45:29 01/23/07 (0)
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