Pass SLOB Build Discussion
- Thread starter naca5
- Start date
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.
I think you will be extremely happy with that design. Obviously selecting nice drivers is also very important.
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.
Troels uses those in his OB project....
enviee - the fullrange driver
For bass I'm thinking about the FAITAL 15PR400, nice driver, very well built and linear.
An externally hosted image should be here but it was not working when we last tested it.
Troels uses those in his OB project....
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.
play with. They sound really good, and maybe today I'll get some
measurements off them.
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.
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.
great news ....
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.
First set of drivers I've purchased with Alnico magnets. Wanna see what all the fuss is about.
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)
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)
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.
We'll find out.
Probably more interesting is the different speaker cone without whizzer like old-school western electric.
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You could, but I would personally want the woofer hitting a sealed, non-compressible surface.
Maybe the difference is 3/5 of FA, but if you have a carpet + rubbery carpet underlay floor then that is a fairly viscoelastic surface, not to mention the floor compressing and changing the cross sectional area of the slot, as well as pressure drops due to the possibility of poor sealing at the carpet surface, some energy would be lost, I couldn't tell you how much though, it could be insignificant or it could a 2dB reduction or more.
Alternatively if you have a concrete/tiled/or wooden floor then most likely you won't get a perfectly sealed slot due to irregularities on the floor surface.
Don't be a lazy bastard. I will sleep better if you follow Papa's design, to the letter. Hahaha
Maybe the difference is 3/5 of FA, but if you have a carpet + rubbery carpet underlay floor then that is a fairly viscoelastic surface, not to mention the floor compressing and changing the cross sectional area of the slot, as well as pressure drops due to the possibility of poor sealing at the carpet surface, some energy would be lost, I couldn't tell you how much though, it could be insignificant or it could a 2dB reduction or more.
Alternatively if you have a concrete/tiled/or wooden floor then most likely you won't get a perfectly sealed slot due to irregularities on the floor surface.
Don't be a lazy bastard. I will sleep better if you follow Papa's design, to the letter. Hahaha
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now we are getting serious .....
I go overboard sometimes.
It's all in the name of getting a good night's sleep. Hahahaha
you know that you must be creative in bedroom , so think about placement
tilt is most probably to physically align acoustical centres of drivers , among few other things
tilt is most probably to physically align acoustical centres of drivers , among few other things
Also slightly off axis allows for some correction of the rising response seen in many full range drivers
you know that you must be creative in bedroom , so think about placement
tilt is most probably to physically align acoustical centres of drivers , among few other things
This thread is getting hot ala pass ;-)
Well that means that tilt must be adapted to driver.
Stupid question, where is the acoustical center of a driver ?
approx. where voice coil is
lookin'g driver sideways
lookin'g driver sideways