After very long time I decided to build one small full-range speaker set for my small bedroom. It is based on Solo103 design but with changed ports length. Fortunately it came out with good bass and it's extending to about 60Hz, not bad at all for 3,5" speaker. I'm still busy with burn-in, I will report how it sounds when I placed them on the shelf...
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Would you mind sharing the port lengths? I have a pair of these I'm looking to possibly use in a portable system and the enclosure seems to be the perfect size. I want to make sure I can get adequate bass from whatever I use. I know a 3" driver is somewhat limited, but I also know the proper enclosure with the proper driver can provide a surprising amount of bass.
Thanks,
Mike
Thanks,
Mike
Hi Mike,
No problem, I calculated port length using this website: Port Length Calculator
I ended up with about 21 cm of length ( ± 8,5 inch ) with port height 1 cm ( ± 0,4 inch ), exact length was adjusted by ear to get as much as possible useful bass range ( by adding extra 1 cm of length ), wall thickness is exactly same as in original design with 18 mm but I used MDF material and later glued another layer of BB 5 mm thickness all around the box for the looks...
I'm still playing with final position on my shelf for the best stereo effect, yes 3,5 inch won't get very low or be very strong but once placed on the shelf with the help of back wall it is surprising full range sound.
During the building I experimented with single round port and single slotted port but none gave as big sound as two slotted ports so I just the recalculated port lengths and didn't look back.
Best regards!
No problem, I calculated port length using this website: Port Length Calculator
I ended up with about 21 cm of length ( ± 8,5 inch ) with port height 1 cm ( ± 0,4 inch ), exact length was adjusted by ear to get as much as possible useful bass range ( by adding extra 1 cm of length ), wall thickness is exactly same as in original design with 18 mm but I used MDF material and later glued another layer of BB 5 mm thickness all around the box for the looks...
I'm still playing with final position on my shelf for the best stereo effect, yes 3,5 inch won't get very low or be very strong but once placed on the shelf with the help of back wall it is surprising full range sound.
During the building I experimented with single round port and single slotted port but none gave as big sound as two slotted ports so I just the recalculated port lengths and didn't look back.
Best regards!
Nice looking speaker!
PS95-8 is one of the highest features per $ driver around. Cast aluminum frame, phase plug, inverted surround, copper shorting ring, nice sound. What's not to like?
PS95-8 is one of the highest features per $ driver around. Cast aluminum frame, phase plug, inverted surround, copper shorting ring, nice sound. What's not to like?
Thanks! Yes nice speaker, after 40 hours it started to sound better but not yet fully broken, will see how long it needs to sound best...
Your speakers look real nice tubemax.
I made myself a pair of PC speakers with a pair of these and they sound real nice. They are just so darn enjoyable to listen to!
I made myself a pair of PC speakers with a pair of these and they sound real nice. They are just so darn enjoyable to listen to!
I'm in the process of finishing these. They just need some atention on the outside.
That being said... I just can't believe how good these drivers sound. They're just so detailed and sound so spacious!
That being said... I just can't believe how good these drivers sound. They're just so detailed and sound so spacious!
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Port lenght
Hi. I really like your design and want to build it. I want to clarify that the each port length is 210mm from the edge of the baffle. Would you have any plans you made? Also i wonder whether you followed the Solo 103 diagram drawing or the photo of the final build. They are different and I am unsure which is better. Thanks
Hi. I really like your design and want to build it. I want to clarify that the each port length is 210mm from the edge of the baffle. Would you have any plans you made? Also i wonder whether you followed the Solo 103 diagram drawing or the photo of the final build. They are different and I am unsure which is better. Thanks
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Hi Svobodin,
Well, the time flies... after 3 years I can't find any documents/info except those posted on DIYAudio, I have sold these to some audio enthousiast same year and since then built also small speaker a la LS3/5a for my bedroom... they remain speaker of choice for small spaces... but they are not full-range single driver, so not the same category...
Wish I could help more but I really don't remember any details regarding the build :-(
I do remember that I liked a lot more dual ports than single reflex port, it sounded for me much more complete and balanced sound...
Best regards!
Well, the time flies... after 3 years I can't find any documents/info except those posted on DIYAudio, I have sold these to some audio enthousiast same year and since then built also small speaker a la LS3/5a for my bedroom... they remain speaker of choice for small spaces... but they are not full-range single driver, so not the same category...
Wish I could help more but I really don't remember any details regarding the build :-(
I do remember that I liked a lot more dual ports than single reflex port, it sounded for me much more complete and balanced sound...
Best regards!