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Multi-Way Conventional loudspeakers with crossovers

Usher 701 resonance issues ?
Usher 701 resonance issues ?
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Old 22nd June 2012, 11:41 PM   #31
system7 is online now system7  United Kingdom
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Join Date: Aug 2008
Location: Portsmouth UK
Oh, I've just had a brilliant idea! I amaze myself sometimes...

Some people ask what Jesus would have done in this situation. Me, I ask myself what TROELS would do!

Here's the answer. Apply a SHALLOW electrical notch to the input of the woofer at about 1kHz. 4.7mH, 10uF and about 20 ohms should do. I got the idea from Troels SEAS TOK loudspeaker.

Here's the wretched "In your face" Usher 701 speaker below, and here's Troels' correction. About right, isn't it? Might add a couple of dB attenuation to the tweeter to line it up right.
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File Type: jpg Usher_701_Kit.JPG (40.5 KB, 66 views)
File Type: jpg Troels_Gravesen_SEAS_TOK_notch.JPG (30.2 KB, 67 views)
Best Regards from Steve in Portsmouth, UK.
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