I can not stop building s*** . I have some Fostex 166 and am planning on building the BLH horn on the Fostex web site. Then I looked around in my room and realized it is the size of a postage stamp (12X12).
From other posts it seems that the room may not be suited for a horn
Is it indeed to small ?
Jeff
From other posts it seems that the room may not be suited for a horn
Is it indeed to small ?
Jeff
😱 yeah not just too small but the wrong shape, should be longer too , something close to the golden ratio also taking into account ceiling height too
cheers and best regards, T.C.
cheers and best regards, T.C.
If you have a small room and little space, the FE166E works
quite well in a .75 cu ft sealed box, stuffed, and driven by a
high impedance source. If you don't want to bother loading
down a current source to get the optimum impedance for the
bottom end response, then you can place resistance in series
with a conventional voltage source amp, say 5 to 15 ohms.
Using this arrangement also makes it easy to implement a
passive baffle-step correction. See the article on
www.firstwatt.com
😎
quite well in a .75 cu ft sealed box, stuffed, and driven by a
high impedance source. If you don't want to bother loading
down a current source to get the optimum impedance for the
bottom end response, then you can place resistance in series
with a conventional voltage source amp, say 5 to 15 ohms.
Using this arrangement also makes it easy to implement a
passive baffle-step correction. See the article on
www.firstwatt.com
😎
Nelson,
Your comment helped clarify an idea in my beginner's head that it is far better to buy quality drivers than to fixate on a specific enclosure. It seems that the 166 can work in just about any enclosure, big or small, with proper tweaking and adjustment for room size.
This is very encouraging. I can't wait to finish my Buschhorn project and then start something else. But I think it's clear to me now to put my money into the drivers without worrying too much about the enclosure.
Doug
Your comment helped clarify an idea in my beginner's head that it is far better to buy quality drivers than to fixate on a specific enclosure. It seems that the 166 can work in just about any enclosure, big or small, with proper tweaking and adjustment for room size.
This is very encouraging. I can't wait to finish my Buschhorn project and then start something else. But I think it's clear to me now to put my money into the drivers without worrying too much about the enclosure.
Doug
fe166
I am using the 15 litre OEM encloser now with the FE167. I used
some fill and a little duct seal to tame it a bit.
I built the JE labs 2a3 for the amp , I like the sound , but the quest for audio nirvana has Conquered my sensabilitys. I thought the FE166 was designed for a BLH . Maybe I am just hyped about the woodworking challenge in building a horn. Provided a build a 21 litre sealed box using FE166 , is there much difference compared to FE167 in a 15 litre BR ?
I am using the 15 litre OEM encloser now with the FE167. I used
some fill and a little duct seal to tame it a bit.
I built the JE labs 2a3 for the amp , I like the sound , but the quest for audio nirvana has Conquered my sensabilitys. I thought the FE166 was designed for a BLH . Maybe I am just hyped about the woodworking challenge in building a horn. Provided a build a 21 litre sealed box using FE166 , is there much difference compared to FE167 in a 15 litre BR ?
golden ratio
Hi Qwad,
I might just encounter the same problem as our friend and his too small room. I gathered quite a lock of stock, amps, speakers and so on.. and I plan to build a humble workshop so that I can build and try amps, horns and the likes..
So, "before" starting building something, might be a good idea to as you what would be something decent for a small horn system. Ideally a two way that could be something like a 15" in a b-reflex, or a kind of Klipsch horn like speaker... and in the mean time, smaller blhorns like the Swan 101 and the likes.
Oh, and about the Golden ratio? can someone remind me what it is, and give examples of what a suitable room could be?
qwad said:😱 yeah not just too small but the wrong shape, should be longer too , something close to the golden ratio also taking into account ceiling height too
Hi Qwad,
I might just encounter the same problem as our friend and his too small room. I gathered quite a lock of stock, amps, speakers and so on.. and I plan to build a humble workshop so that I can build and try amps, horns and the likes..
So, "before" starting building something, might be a good idea to as you what would be something decent for a small horn system. Ideally a two way that could be something like a 15" in a b-reflex, or a kind of Klipsch horn like speaker... and in the mean time, smaller blhorns like the Swan 101 and the likes.
Oh, and about the Golden ratio? can someone remind me what it is, and give examples of what a suitable room could be?
Re: golden ratio
phi = 1.6180...
http://mathworld.wolfram.com/GoldenRatio.html
the ratio 1😛hi is the golden ratio
in a rectangular shape 0.618:1:1.618
The best rooms are not rectangular, but within practical limitations a significant number of the problems can be eliminated by having a roof that slopes in 2 axes (a normal vaulted ceiling would only be considered 1 direction -- but one with a "sloping" floor in the same direction as the peak (and then rotated so the floor was level) would be a practical realization of 2 axes slope).
my room has a ceiling that slopes in 1 direction and goes from 7' to 17' -- it is a really good sounding room. It has a few other features that help too.
dave
Sylver300B said:
phi = 1.6180...
http://mathworld.wolfram.com/GoldenRatio.html
the ratio 1😛hi is the golden ratio
in a rectangular shape 0.618:1:1.618
The best rooms are not rectangular, but within practical limitations a significant number of the problems can be eliminated by having a roof that slopes in 2 axes (a normal vaulted ceiling would only be considered 1 direction -- but one with a "sloping" floor in the same direction as the peak (and then rotated so the floor was level) would be a practical realization of 2 axes slope).
my room has a ceiling that slopes in 1 direction and goes from 7' to 17' -- it is a really good sounding room. It has a few other features that help too.
dave
Is the slope in the direction of the centerpoint between the speakers to the listener? Or is it left-right wrt the speakers?
SY said:
Right now the speakers are at the short end about a metre out from the wall, SAF dictated (and for practical reasons now that we have a TV). I prefer the room sonically oriented the other way where the closest the speakers can get to the wall is about a metre & a half. This end also has a large opening at the top into another room with the ceiling sloping in the opposite direction. (this orientation would also allow me to place huge subs on the ceiling of my workshop firing out into the main room)
dave
life sure must be different across that border.
Have a friend who quit being a Nielson family because he got tired of them calling up and asking if thier equipment was ok as he never ever watched tv.
Tweeker said:
Well we always had a TV, but until recntly my big GAO was on loan to my mom and we had a 20" Sony in the bedroom (for movies only). When my mom got her own TV and we got the big one back Ruth wanted it in the living room....
dave
About sloping:
Does it "count" as sloping if one builds levels? I can imagine constructing a slightly sloping ceiling, from taller to shorter wrt the listener/viewer, but I can't imagine a living space with a slightly sloping floor.
I can, however, imagine having three steps from back to front, say, over the course of 22 feet, to create a virtual slope, I guess.
Dave
Does it "count" as sloping if one builds levels? I can imagine constructing a slightly sloping ceiling, from taller to shorter wrt the listener/viewer, but I can't imagine a living space with a slightly sloping floor.
I can, however, imagine having three steps from back to front, say, over the course of 22 feet, to create a virtual slope, I guess.
Dave
In my defense, I was yet uncoffeed when I posted that.
cheers and best regardsT.C.- Status
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