Hi,
I came across some sofa cover is quite soft and feels like sponge at about 5mm thick. A thought came to me, is something like that good for the front panel of the speaker? I remember reading somewhere that adiitional reflections from the front baffle from the speakers causes loss of definition for the sound due to the additional reflection smearing the sound.
I was thinking if you would to cover the front of your speaker with something that is sound absorbent, will it improve the sound by reducing the smearing.
Thanking all in advance
Oonn
I came across some sofa cover is quite soft and feels like sponge at about 5mm thick. A thought came to me, is something like that good for the front panel of the speaker? I remember reading somewhere that adiitional reflections from the front baffle from the speakers causes loss of definition for the sound due to the additional reflection smearing the sound.
I was thinking if you would to cover the front of your speaker with something that is sound absorbent, will it improve the sound by reducing the smearing.
Thanking all in advance
Oonn
Edge diffraction is problematic, but the front panel itself does not cause "smearing", it is what happens to the sound wave as it diffracts around the baffle that is a problem.
To reduce edge diffraction problems you would put the absorptive material around the perimeter of the baffle.
For the sponge sofa cover to be absorptive, the material needs to be open cell, if you can't breathe through it, it will be reflective, making for a "rubbery" diffraction 🙂.
Hi thanks for the input. The stuff I have seem to be pretty foamy and hollow.
Will give it a shot.
Oon
Sent from my MB860 using Tapatalk
Will give it a shot.
Oon
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I've used felt, faux fur, cotton batting, etc on the baffle face and wrapped around the edges.
The benefits were hard to ignore. I recommend it. Felt seemed the best.
The benefits were hard to ignore. I recommend it. Felt seemed the best.
baffel face soft covering
Hi there P: Would you elaborate on your observations of benifits for felt on baffle faces. What felt thickness are you using? I've tried shag carpet over fiber board underlayment, without positive results. ...regards, Michael
Hi there P: Would you elaborate on your observations of benifits for felt on baffle faces. What felt thickness are you using? I've tried shag carpet over fiber board underlayment, without positive results. ...regards, Michael
I don't remember the thickness exactly. IIRC it was a couple of layers of thin felt fabric over batting.
Most of the help was in the upper midrange. Smoother, more natural. Imaging was better. Don't have any measurements, tho. Doing the same with horns it was easy to measure.
Most of the help was in the upper midrange. Smoother, more natural. Imaging was better. Don't have any measurements, tho. Doing the same with horns it was easy to measure.
Some companies I've seen use a relatively thin maybe 1/4 inch or so felt surrounding the tweeter. I've seen various companies using it. The other aspect to consider if what you use internally since midrange and bass drivers are open basket and 50% of the output of a speaker driver goes inside the cabinet. I'm talking with the guys at Acoustic Fields because they have some cool foam and filler material they use for sound absorption for acoustic treatment that does a LOT better with low and mid frequency absorption so I'm trying to figure out which product they make that I can replace the foam in my existing speakers to hopefully improve bass definition and bass response and hopefully improvements in the midrange. So you might want to give them a call and see what they have to put on the inside the cabinet. Most cabinets don't need much baffle material so it might not cost that much, but I think it might be worth a try.
Wilson Audio has used and I think still does use felt around their tweeters as do other mfg.
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