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Multi-Way Conventional loudspeakers with crossovers

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Old 4th December 2012, 12:34 AM   #311
Beau is offline Beau
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Nice, but you are going to have lobing issues with such a large mtm. Id suggest ditching one of the mids.
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Old 4th December 2012, 12:39 AM   #312
Silent Screamer is offline Silent Screamer  Australia
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The one furtherest from the tweeter?
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Old 4th December 2012, 03:04 AM   #313
jerome69 is offline jerome69  France
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Yes or try 1 or 2 x 3/4" dome ? the crossover frequency will be high 5/6kHz
http://www.scan-speak.dk/datasheet/pdf/d2004-602000.pdf
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Old 4th December 2012, 03:41 AM   #314
Silent Screamer is offline Silent Screamer  Australia
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Just paid $2000 for a pair of those tweeters, so replacing them is not an option. I could replace the two 8 ohm 12MUs (in series) with a single 4 ohm 12MU (I have both).

The area I am most concerned about is the area behind the tweeter, do you think it will allow the sound to travel unobstructed?
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Old 4th December 2012, 04:03 AM   #315
jerome69 is offline jerome69  France
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Sorry
The distance behind the tweeter must be longer than the largest dimension of the tweeter.
Here the diagonal is the largest dimension. I think it is the primary condition if you want to minimise the area behind effect/obstruction.

Keep your MTM
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Old 4th December 2012, 04:27 AM   #316
Silent Screamer is offline Silent Screamer  Australia
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ok so your saying the distance between the two blue arrows must be greater than the diagonal of the tweeter face plate correct?
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Old 4th December 2012, 04:55 AM   #317
Beau is offline Beau
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Single 4ohm, yep.
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Old 4th December 2012, 05:04 AM   #318
jerome69 is offline jerome69  France
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Quote:
Originally Posted by Silent Screamer View Post
ok so your saying the distance between the two blue arrows must be greater than the diagonal of the tweeter face plate correct?
Yes Correct
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Old 4th December 2012, 05:10 AM   #319
Silent Screamer is offline Silent Screamer  Australia
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Thanks guys will do a few refinements to the design based on your feedback.
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Old 4th December 2012, 10:34 AM   #320
Silent Screamer is offline Silent Screamer  Australia
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Did a bit of tweaking...
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