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Old 20th December 2016, 08:51 AM   #21
naca5 is offline naca5  Belgium
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Quote:
Originally Posted by 2 picoDumbs View Post
20" is a good size.

From memory, once you exceed 35" (that is, in an average room, the size us peasants have), the magic of the open baffle seemed to diminish.
Obviously if you are a rich bastard with huge size rooms then things would be a little different.

Either way a narrower baffle is probably also going to look a little better and it's not too hard to correct for a small amount of bass roll off.


Thanks will start soon the first proto ;-)
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Old 20th December 2016, 09:15 AM   #22
2 picoDumbs is offline 2 picoDumbs  Australia
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I haven't tried the slot loaded woofer firing on the floor. Chances are that the slot loaded woofer firing on the floor along with the other woofer mounted vertically you might not need any bass boost.

I think you will be extremely happy with that design. Obviously selecting nice drivers is also very important.
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Old 20th December 2016, 03:59 PM   #23
naca5 is offline naca5  Belgium
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Full range are almost selected, the full ranges are already here and are the ENVIEE:
enviee - the fullrange driver

For bass I'm thinking about the FAITAL 15PR400, nice driver, very well built and linear.
Click the image to open in full size.

Troels uses those in his OB project....
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Old 20th December 2016, 05:15 PM   #24
Nelson Pass is offline Nelson Pass  United States
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Pass Open Baffle: need help
Courtesy of Pure Audio Project guys I have a pair of Voxatives to
play with. They sound really good, and maybe today I'll get some
measurements off them.
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Old 20th December 2016, 08:04 PM   #25
2 picoDumbs is offline 2 picoDumbs  Australia
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Quote:
Originally Posted by naca5 View Post
Full range are almost selected, the full ranges are already here and are the ENVIEE:
enviee - the fullrange driver

For bass I'm thinking about the FAITAL 15PR400, nice driver, very well built and linear.
Click the image to open in full size.

Troels uses those in his OB project....

For the slot loaded woofer, I wouldn't run it any higher than 80 Hz but you should feel free to experiment and let your ears be the judge.
The vertically mounted woofer could certainly be run higher in frequency but to keep it simple it might be best just to cross it over at the same frequency as the slot loaded woofer.
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Old 20th December 2016, 08:08 PM   #26
2 picoDumbs is offline 2 picoDumbs  Australia
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Quote:
Originally Posted by Nelson Pass View Post
Courtesy of Pure Audio Project guys I have a pair of Voxatives to
play with. They sound really good, and maybe today I'll get some
measurements off them.
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Old 21st December 2016, 07:54 AM   #27
nicoch58 is offline nicoch58  Europe
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Quote:
Originally Posted by Nelson Pass View Post
Courtesy of Pure Audio Project guys I have a pair of Voxatives to
play with. They sound really good, and maybe today I'll get some
measurements off them.
great news ....
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Old 21st December 2016, 09:39 PM   #28
2 picoDumbs is offline 2 picoDumbs  Australia
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Bought a pair of 10" Alnico Classic Audio Nirvana drivers.
First set of drivers I've purchased with Alnico magnets. Wanna see what all the fuss is about.
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Old 21st December 2016, 10:22 PM   #29
Zen Mod is offline Zen Mod  Serbia
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Pass Open Baffle: need help
it depends

when done properly , difference between ceramic and AlNiCo are in realm of personal taste , not level of quality

everything else being the same

had exact experience with Sonido (present production) and Iskra drivers (NOS)
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Old 22nd December 2016, 02:01 AM   #30
2 picoDumbs is offline 2 picoDumbs  Australia
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Yeah. I'm a skeptic too.
We'll find out.
Probably more interesting is the different speaker cone without whizzer like old-school western electric.
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Last edited by 2 picoDumbs; 22nd December 2016 at 02:09 AM.
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