I’ve been beating the drum of narrow baffle speakers for over two decades here……where tweeters are concerned the improvement to imaging and soundstage cannot be understated……classic examples lie everywhere like the Vandersteen 2c…….a system for not much $$$ that just about anyone could get on with as their long term/permanent solution. With newer driver engineering, much higher SPL and wider bandwidth is possible and can be utilized in the midrange reducing baffle width to under 6” these days……the system simply disappears if placed out into the room a bit. Thanks for sharing your experiences and the data.
The two way spheres I made get down to 100hz with the midwoofer albeit spl maxes out maybe 95 without worrying about overdriving it
But loud enough
The dynavox has a 3” coil so robust and domed shape so avoid even diffract ion cones can generate
But loud enough
The dynavox has a 3” coil so robust and domed shape so avoid even diffract ion cones can generate
If you have not seen the Leedh E2, Acoustic Beauty speakers, I think they win the prize for minimum baffle. I have always admired the novelty of this design, particularly the extremely large Xmax custom drivers employed in it. They have no surround, and no spider. The voice coil - dome assembly is held centered in the magnetic gap by what are essentially two ferro fluid o-rings. Unfortunately you have to fly to Europe to audition them, so it's not going to happen for me.
https://www.acoustical-beauty.com/Loudspeaker-leedh-e2-uk.php
https://www.acoustical-beauty.com/Loudspeaker-leedh-e2-uk.php
Woah never heard of these - have to read thru all the stuff on their site. Meanwhile here's an interesting speaker from a guy in Ukraine (hope he's still okay). https://copra-acoustic.com/. Anyway can adjust / position the various drivers as you like. They certainly are a conversation piece - look nice with the finish - and prob. sound good as well.
Good thing is that you can easily do the internals of a sphere, non-spherical 😉
https://www.diyaudio.com/community/threads/wideband-globes.356814/
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Very creative and very nice finish
Mystical magical spheres, but center to center spacing is miles apart.
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Depending on source material / recording being played.
" Soundstage" can change or " Disappear"
Maybe I get confused how many different descriptions
there is in the audio world to describe basic stereo mix.
And how much delay and reverb is involved with many recordings.
So not sure if people just here common stereo effects.
And rather common for vocals.
Compared to same source material, I can get
maybe a wide baffle sound different.
Vocals instruments sound better to me , I guess.
I dont like being told how things sound.
I just rather listen without expected bias.
Skinny baffles make baffle step annoying.
So I dont see much pleasure in them for system design.
Far as edge diffraction , is odd how so many live sound cabinets
and older box type speakers we heard as kids, sounded just fine.
But the " edge" diffraction would be considered " Very bad"
Normal baffle, flush mount drivers, round the edges.
Cool ... life goes on. Recordings are recordings.
I hear delay effects, other hear Holographic images or whatever
romance you wanna shove in there. Why we had so much fun
and took little time to learn delay based effects to " open" up
a mix
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In my recent experience building small spherical speakers I have not found the internal standing waves to be a significant problem. Stuffing the sphere with a ball of acoustic foam or fiberglass batting seems to work fine damping out the internal acoustic resonances above 300 Hz.
Here's an impedance sweep from my recent 4" sphere build. There is a small wide bump at 1600 Hz, but this resonance does not seem to harm the sound.