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Tips and advice on improving  my first build
Tips and advice on improving  my first build
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Old 17th May 2020, 09:59 AM   #1
GreyLinux is offline GreyLinux
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Default Tips and advice on improving my first build

Hi all,
First time posting in this forum , I could do with some advice on how to improve my speaker build both aesthetically and with sound quality, if possible.

I built my speaker enclosure based on this design YouTube

I'm currently using a Raspberry Pi4 , a Hifiberry Amp2, a peerless PLS-65F25AL01-04 full range speaker driver and 3 Gpio buttons.

I am using Moode audio for the software side of things which runs flawlessly , I did have a few hardware issues with the Gpio buttons having false triggers , which I resolved by soldering on a low pass filter modification to the Gpio header of the Amp2, details can be found here on the Moode forum Small Speaker project, Gpio problems and how I solved them

I built the enclosure a shade under the size required for the speaker driver , based on an online calculator, however the port is the recommended size. I don't think this impacts the sound quality to much as to be honest the speaker sound great.

Ok to the matter in hand , I could do with some advice on how to improve my build ! , my wife would prefer the enclosure to be smaller if possible so any advice on how to improve the enclosure aesthetically, how to make it smaller if possible , how to tidy up the low pass filter modification, a possible alternative speaker driver to aid making the enclosure smaller or any advice in general would be very much appreciated

thanks in advance .
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Old 17th May 2020, 10:21 AM   #2
JMFahey is online now JMFahey  Argentina
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Your speaker looks very nice, congratulations.
Now that you invested time and effort, with a good result, why drop it?
Buy your wife a bunch of roses or a box of chocolates instead.
And enjoy your build
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Design/make/service musical stuff in Buenos Aires, Argentina, since 1969.
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Old 17th May 2020, 10:29 AM   #3
GreyLinux is offline GreyLinux
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hi ,



thanks!!! I really appreciate the compliment , yeah I probably should of said that I'm building a few of these speaker for other rooms so the improvement will be for the next speaker's benefit this one is staying as is .


I always think that any project has room for improvement and so it would be great to show iterations of how I learned some thing new throughout the entire project and developed a final superior product .
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Old 17th May 2020, 11:00 AM   #4
mjf is offline mjf  Austria
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a box with sloping edges looks more slim........
perhaps some damping material on the walls inside.......
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Old 18th May 2020, 10:54 AM   #5
GreyLinux is offline GreyLinux
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Yeah I did have a thought about padding material but I worried it would reduce the internal size further ( for this speaker driver ) resulting in poorer sound quality .


Chamfered edges might provide an aesthetic improvement , I might consider that for the next iteration.


Thanks
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Old 21st May 2020, 12:48 PM   #6
Mark Tillotson is offline Mark Tillotson
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Rounded or chamfered edges also can improve the acoustics by reducing diffraction effects.


Its also generally agreed a cube isn't a good choice due to resonant modes all being the same, and its common to see all three dimensions different with drivers not mounted symmetrically too - the idea being to create lots of modes all overlapping to reduce any prominent peaks.
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Old 21st May 2020, 07:26 PM   #7
GreyLinux is offline GreyLinux
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Quote:
Originally Posted by Mark Tillotson View Post
Rounded or chamfered edges also can improve the acoustics by reducing diffraction effects.


Its also generally agreed a cube isn't a good choice due to resonant modes all being the same, and its common to see all three dimensions different with drivers not mounted symmetrically too - the idea being to create lots of modes all overlapping to reduce any prominent peaks.

Wow thanks for the reply I will definitely consider rounded or chamfered corners on my next build .
Is there a shape that is more ideal ?
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Old 21st May 2020, 07:38 PM   #8
rayma is offline rayma  United States
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Quote:
Originally Posted by GreyLinux View Post
Wow thanks for the reply I will definitely consider rounded or chamfered corners on my next build .
Is there a shape that is more ideal ?
The horse's mouth.
http://www.dwdrums.com/images/moonmi...enclosures.pdf
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Old 22nd May 2020, 06:46 PM   #9
GreyLinux is offline GreyLinux
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Quote:
Originally Posted by rayma View Post



Brilliant! thanks for this I'll shall give it a read now and hopefully I get some ideas about what enclosure shape I will try next
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