I really like the Orbitsound Dock E30. The sound quality is great, airsound effect cool and it is small enough to fit into a suitcase when traveling by car. I would be afraid to put it into checked luggage while flying. This gets me thinking...
Here is some nice exploded view: https://barnabyward.com/project/dock-e30
Showing us that:
I wonder how all these interact. I wonder if the small full rangers are something one can buy or if they are custom made.
Also, the "airsound" effect is adjustable, it says +-12 dB - would that be just a simple relative volume for the S component? One review said that at minimum setting the sound si practically mono (need to try that).
I wonder if something of similar performance in a smaller travel friendy package (with lower SPL of course) could be built. The box itself could be 3D printed, it could use e.g. three of these https://www.madisoundspeakerstore.com/approx-2-fullrange/sb-acoustics-sb65wbac25-4-2.5-full-range/ or maybe, on the cheap side, Visaton FRS-5X or maybe the 2" inch Sica full range or smaller BMR drivers? I should still have some TEBM35C10-4 from another project. Any suggestions? My favourite 3FE22s would end up with a too large box...
For the bass, this looks like a possible solution (taking 0.5l of volume though and quite expensive for what it is): https://www.soundimports.eu/en/tang-band-pr08-a.html. Any other suggestions for low volume bass? Maybe a bit of EQ boost would be all needed - and it would save one amplification channel as well.
For the amplification, I have tried some nice small bluetooth class D amps, there are plenty of them. No option for EQ there, some have bass/treble EQ built in, but I prefer the ones without. Powered from a laptop brick, since I always have at least one with me.
While thinking out loud like this, I think the BMRs will be a good start in a simple printed box with external processing and amplifications. Then, at phase 2, all of this would be built into one box. Another line on my never ending list of potential projects🙂
Here is some nice exploded view: https://barnabyward.com/project/dock-e30
Showing us that:
- all three speakers share the same volume
- there are three passive radiators
I wonder how all these interact. I wonder if the small full rangers are something one can buy or if they are custom made.
Also, the "airsound" effect is adjustable, it says +-12 dB - would that be just a simple relative volume for the S component? One review said that at minimum setting the sound si practically mono (need to try that).
I wonder if something of similar performance in a smaller travel friendy package (with lower SPL of course) could be built. The box itself could be 3D printed, it could use e.g. three of these https://www.madisoundspeakerstore.com/approx-2-fullrange/sb-acoustics-sb65wbac25-4-2.5-full-range/ or maybe, on the cheap side, Visaton FRS-5X or maybe the 2" inch Sica full range or smaller BMR drivers? I should still have some TEBM35C10-4 from another project. Any suggestions? My favourite 3FE22s would end up with a too large box...
For the bass, this looks like a possible solution (taking 0.5l of volume though and quite expensive for what it is): https://www.soundimports.eu/en/tang-band-pr08-a.html. Any other suggestions for low volume bass? Maybe a bit of EQ boost would be all needed - and it would save one amplification channel as well.
For the amplification, I have tried some nice small bluetooth class D amps, there are plenty of them. No option for EQ there, some have bass/treble EQ built in, but I prefer the ones without. Powered from a laptop brick, since I always have at least one with me.
While thinking out loud like this, I think the BMRs will be a good start in a simple printed box with external processing and amplifications. Then, at phase 2, all of this would be built into one box. Another line on my never ending list of potential projects🙂
A simple rectangular box of 1 l volume (200 x 65 x 100 mm external dimensions) with 3 x TEBM35C looks like it could work. I will print one in two halves when I get back to my printer. Each BMR will have its leads taken out its box, so both M/S and SSS wiring will be possible. I have just realized I have single 8 boxes by bwaslo (https://www.thingiverse.com/thing:3044913) printed already with the drivers installed. So the first tests will be done with these - I guess shared volume is not really necessary.
It sounds like a bunch of gobbledegook for prose on the page. 3 2-3” FR one forward, 2 sideways, maybe different signals, but the 3 PTs need all 3 FRs to work.
WiFi vrs bluetooth is good, but a HomePod probably smokes it.
dave
It is using L+R signal on the front and L-R and R-L on the sides. So there is usually not much bass content in the side speakers. I have not heard the Pod, but I highly doubt it will be better. I am just listening to the E30 and it smokes e.g. the Sonos system we have at the office (sound quality wise, not volume wise). The stereo effect is also pretty nice, better than mono or many Bluetooth speakers I've heard.