Well, I'd say tweeter power handling is ALWAYS an issue for any project (except maybe a humongoid line array). But usually it's distortion that's more a concern, which is why the next batch of measurements will be on tweeters, including something old and someting blue, just for historical relevance or perspective.
Then again, I'm not trying or expecting to get 115 dB levels in the Arvo's. OTOH, 100-107 dB is the LF goal (40Hz to 50 Hz). The issue becomes what drivers, what crossover points, what LF power handling. The waveguide concept could help both directivity and lowering the LF distortion, depending on it's feasibility with chosen midwoofers. I have a feeling that we'll be able to make it work out in an example I'm considering, but that a direct radiator option may be desired by some.
So, if a 3/4" dome with nice upper end characteristics will work with a waveguide (maybe H1283, also C13-6), then a good midrange 1" dome may be fine without the waveguide (RS28a-4), but won't have the improved directivity control, and may not be a smooth/flat in the top octave. Seems a reasonable/understandable tradeoff, considering the expense and construction issues, no?
Then again, I'm not trying or expecting to get 115 dB levels in the Arvo's. OTOH, 100-107 dB is the LF goal (40Hz to 50 Hz). The issue becomes what drivers, what crossover points, what LF power handling. The waveguide concept could help both directivity and lowering the LF distortion, depending on it's feasibility with chosen midwoofers. I have a feeling that we'll be able to make it work out in an example I'm considering, but that a direct radiator option may be desired by some.
So, if a 3/4" dome with nice upper end characteristics will work with a waveguide (maybe H1283, also C13-6), then a good midrange 1" dome may be fine without the waveguide (RS28a-4), but won't have the improved directivity control, and may not be a smooth/flat in the top octave. Seems a reasonable/understandable tradeoff, considering the expense and construction issues, no?
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