This used 2 of those MCM 58-4790 woofs and the BIC/Vifa 3/4" tweet. I'd have to open them up to get the values I used in the series crossover.
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Originally posted by rickpepper View PostI'm in the southern half of Minnesota. I had a working "WineBottler" build of WinISD running under OS X 10.6.8 but since had to upgrade and it relied on Rosetta. Tried doing a new build but couldn't make it work, and I can't seem to get WinISD Online to work on a Mac anymore (most likely a Java issue.).
RonC-Note Iron Driver Build
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The good thing about science is that it's true whether or not you believe in it. - Neil deGrasse Tyson
http://www.youtube.com/watch?v=cjuGCJJUGsg
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rickpepper
Room EQ Wizard (REW) will run natively on IOS.
I think I saw somewhere that it can run an impedance sweep (for T/S params and crossover design)
I'd suggest dumping those mylar tweeters - there is a huge difference between $3 tweeters and $15 tweeters.
Those Vifa tweeters would be great for this project.
http://www.roomeqwizard.com/
I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
"As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara
High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
My Voxel min sub Yet-another-Voxel-build
Tangband W6-sub
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Originally posted by donradick View Postrickpepper
Room EQ Wizard (REW) will run natively on IOS.
I think I saw somewhere that it can run an impedance sweep (for T/S params and crossover design)
I'd suggest dumping those mylar tweeters - there is a huge difference between $3 tweeters and $15 tweeters.
Those Vifa tweeters would be great for this project.
http://www.roomeqwizard.com/
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Originally posted by donradick View Postrickpepper
Room EQ Wizard (REW) will run natively on IOS.
I think I saw somewhere that it can run an impedance sweep (for T/S params and crossover design)
I'd suggest dumping those mylar tweeters - there is a huge difference between $3 tweeters and $15 tweeters.
Those Vifa tweeters would be great for this project.
http://www.roomeqwizard.com/
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@Æ: I'm an Apple guy across the board, so I can look into donradick's suggestion. But donradick do tell what you know about those tweets, please. Ron_E thank you for the offer I may very well contact you PM soon, it's interesting that your profile photo is kind of where I was wanting to go with these drivers. Bill Fitzmaurice has tons of (PA) designs using the lowly Motorola Piezo's, but because they're configured as a line source vs. point source, evidently they are up to the task, I wonder if these Mylar's can be configured similarly for better results, that's my $64,000 question.
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Rick (and AE) - I don't have any experience with those specific mylar tweeters.
In general, I don't think it's productive use of time to try to make a $3 tweeter sound good when a $10 tweeter sounds much better.
YYMV
I think I hear a difference - wow, it's amazing!" Ethan Winer: audio myths
"As God is my witness I'll never be without a good pair of speakers!" Scarlett O'Hara
High value, high quality RS150/TB28-537SH bookshelf - TARGAS NLA!
SB13/Vifa BC25SC06 MTM DCR Galeons-SB13-MTM
My Voxel min sub Yet-another-Voxel-build
Tangband W6-sub
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Originally posted by rickpepper View Post... using the lowly Motorola Piezo's, ...
Guys who assembly arrays of these are required to sort through and discard at least 10%.
"Not a Speaker Designer - Not even on the Internet"
"If the freedom of speech is taken away, then dumb and silent we may be led, like sheep to the slaughter."
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Originally posted by Sydney View PostActually the piezos used are cheap copies of the original Motorola models. As such there is very large variations in manufacturing tolerances and performance.
Guys who assembly arrays of these are required to sort through and discard at least 10%.
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Originally posted by Æ View Post...original Motorola...
There hasn't been a lot of new relevant development.
"Not a Speaker Designer - Not even on the Internet"
"If the freedom of speech is taken away, then dumb and silent we may be led, like sheep to the slaughter."
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It's been my experience that piezos ring horribly. I took one apart and it was just a paper cone glued to the piezo element.
RonC-Note Iron Driver Build
The Lydias
The Cherry π's
The Champs - Iron Driver 2015 Entry
My Projects Page
The good thing about science is that it's true whether or not you believe in it. - Neil deGrasse Tyson
http://www.youtube.com/watch?v=cjuGCJJUGsg
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