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In the Forum: Audio Discussions
In the Thread: Natural Remedies for Sick Speakers?

Post Subject: Arf 'n ArfPosted by Paul S on: 8/14/2010

I still have no solid idea how to naturally tame the wild upper-mid/lower-treble I have heard. I went ahead and soldered in the guestimated notch filter yesterday, very sharp, 6 dB, and by this morning the (removable) silicone stick-um was dry, so I put the speakers back together and gave a listen today.

MUCH better! Issues remain, but at least I can enjoy listening to music while I continue to think about it.

I always planned to add short sails on the ceiling over the speaker baffles, and some experiments this morning indicate that this would help with some aspects of more refined sound shaping with the Reps. Also, way back when I made the speakers I included provisions for separate "dust covers" for all drivers, including the Lowther (Reps...) driver. The Lowther/Reps is my only OB driver, so it is the only one that might need front and "rear" dust covers. Back when, I drilled some holes in the rear part of the baffle wings so I could insert dowels that would support cloth covers over the back of the winged baffle, and even then then I had in mind I might wind up leaving some sort of sound "screen" in place while listening. I am thinking now that I will start with some sort of "gossamer" that would be about useless for dust or lower frequencies but might be just about right for tuning the rear-firing upper-mid/lower-treble.

At this point, sound is differnet that it was with the Lowthers, but it is on par, overall.

Speaking of "Natural Solutions", I hate to belly up so soon, but at this point it looks like I may have to bust out the meters and crunch more numbers to get where I want to go (though I hope not...).

Paul S

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