In the search for the perfect woofer and talking to people in my state I discovered a man who built speakers for a large theater in my country (teatro de São Paulo), I went to his house and discovered that he built speakers and in my opinion they looked good built and very good.
Any thoughts on handcrafted speakers?
What should I take into consideration?
I didn't ask him but I will ask here, how do I get the tille small parameters for these homemade speakers?
There I saw brands of speakers that for me were examples of speakers such as Bose, Celestion, Selenium, Fosgate, Ophera, Harman Kardon, Focal and the famous Sony.
And all these speakers he was arranging
Any thoughts on handcrafted speakers?
What should I take into consideration?
I didn't ask him but I will ask here, how do I get the tille small parameters for these homemade speakers?
There I saw brands of speakers that for me were examples of speakers such as Bose, Celestion, Selenium, Fosgate, Ophera, Harman Kardon, Focal and the famous Sony.
And all these speakers he was arranging
If you mean hand built cabinets, there are some stunning examples around which can look nicer and more interesting than retail speakers, plus they don't have to be black. Experienced builders generally use better quality materials, such as thicker wood and better bracing, too.
Many examples on this Forum, or have a look at these as an example of what can be done:
https://projectgallery.parts-express.com/?s=Kittinger
Cabinet parameters can be worked out from driver data, if that's available, or if you have access to the driver itself, from measuring it and loading the data into design software.
Geoff
Many examples on this Forum, or have a look at these as an example of what can be done:
https://projectgallery.parts-express.com/?s=Kittinger
Cabinet parameters can be worked out from driver data, if that's available, or if you have access to the driver itself, from measuring it and loading the data into design software.
Geoff
he will build the speaker, for example a woofer
handcrafted woofers and subwoofers
I'm not a big fan of a perfect Frankeintein woofer, but I thought it was interesting to see that man's laboratory. It had all the possible parts to build a woofer from the dome to the Frame/Basket
Well this thread died off!
Did you get the answers you wanted? In proper terminology, you are looking at custom made DRIVERS.
The fact that they are custom doesn't really change much. If you want TS parameters, you either get them from the maker or you measure them yourself with equipment.
Did you get the answers you wanted? In proper terminology, you are looking at custom made DRIVERS.
The fact that they are custom doesn't really change much. If you want TS parameters, you either get them from the maker or you measure them yourself with equipment.
If 3d printing is something you would do, I recall @gomper did some interesting driver manufacturing and custom spider work in this thread - https://www.diyaudio.com/community/threads/creating-a-field-coil-driver-loudspeaker.352790/
Unfortunately some of the pictures in the early posts in the thread were stored externally and have expired.
Unfortunately some of the pictures in the early posts in the thread were stored externally and have expired.
Ok, if these are custom made drivers , the basic solution is to measure them.
Commercially made ones save you some work, only because they measured them before, no magic involved.
In.the old days, Selenium offered incredibly detailed and complete datasheets, way more than other manufacturers.
After they were bought by "JBL", actually "Harman International" or whoever holds stock today, Data quality fell like a rock.
Commercially made ones save you some work, only because they measured them before, no magic involved.
In.the old days, Selenium offered incredibly detailed and complete datasheets, way more than other manufacturers.
After they were bought by "JBL", actually "Harman International" or whoever holds stock today, Data quality fell like a rock.
Sounds like a trade-off between the measurement effort and the cost to ship something with known params to Brazil. A motivation might be to keep / spend your money local, versus sending it out of the country. Also that data will add value to his product; perhaps upon acquiring the skill, you're a valuable resource to him.
Yes.
In fact I guess the speaker maker must already have measured them.
If anything, for his own use.
Back in the day, and I'm talking 30 years ago, I made a 2 cu ft box (which I still have) and measured them by sweeping, tracing impedance, adding a known weight to cone: 10 grams of solder wire or window putty or coins or even a 9mm bullet , not kidding, and repeating sweeps, then pencil, paper and a pocket calculator.
All data I needed in less than 30 minutes.
Meaning no sophisticated measurement equipment is needed, at all.
Our friend can do that; easier today because with the proper software he only has to measure and input a couple voltages, nothing more.
In fact I guess the speaker maker must already have measured them.
If anything, for his own use.
Back in the day, and I'm talking 30 years ago, I made a 2 cu ft box (which I still have) and measured them by sweeping, tracing impedance, adding a known weight to cone: 10 grams of solder wire or window putty or coins or even a 9mm bullet , not kidding, and repeating sweeps, then pencil, paper and a pocket calculator.
All data I needed in less than 30 minutes.
Meaning no sophisticated measurement equipment is needed, at all.
Our friend can do that; easier today because with the proper software he only has to measure and input a couple voltages, nothing more.