[IMGDEAD]http://i30.tinypic.com/kd0h2r.jpg[/IMGDEAD]
This is a pic I drew up a few days ago and it's just so pretty I can't stop thinking about it. It's definitely not on the to do list, but it would be easier to make than floor to ceiling stacks of labhorns, so I might do it one day. A side benefit is that it turns the whole front wall into a poly cylindrical diffusor. I would expect to design this to cover somewhere around 10 - 40 hz or so.
The red outline is a massive floor to ceiling sealed box. The walls and the box form a dual waveguide with a rapid expansion that grows to the cross sectional area of the room at the mouth. So technically it's not really a horn. This would use as many highish vas 15 or 18 inch woofers (like the new tempestx) as it takes to maintain a decent system q and provide adequate spl, hopefully with loads of extra headroom.
I would use this in a small room so the dimensions and amount of drivers don't get out of hand. The walls of the room would need to be made of concrete or metal, in which case there should be lots of room gain (and lots of room treatments). A 10x7.5 foot front wall would amount to a mouth size of 75 square feet.
1. How do you model something like this? Since the mouth is the entire cross sectional area of the room, it's not 1/8th space, more like 1/16 or maybe even 1/32 space, I would think. ???
2. Should there be a front chamber? A front chamber would probably net some more spl potential, especially down low, but is that a good trade when spl levels should be more than enough anyway?
3. Would it be better to just do floor to ceiling stacks of labhorns in the front corners?
It's pointless to even try to model it without knowing it's context in relation to the room, so I haven't even tried yet.
This is a pic I drew up a few days ago and it's just so pretty I can't stop thinking about it. It's definitely not on the to do list, but it would be easier to make than floor to ceiling stacks of labhorns, so I might do it one day. A side benefit is that it turns the whole front wall into a poly cylindrical diffusor. I would expect to design this to cover somewhere around 10 - 40 hz or so.
The red outline is a massive floor to ceiling sealed box. The walls and the box form a dual waveguide with a rapid expansion that grows to the cross sectional area of the room at the mouth. So technically it's not really a horn. This would use as many highish vas 15 or 18 inch woofers (like the new tempestx) as it takes to maintain a decent system q and provide adequate spl, hopefully with loads of extra headroom.
I would use this in a small room so the dimensions and amount of drivers don't get out of hand. The walls of the room would need to be made of concrete or metal, in which case there should be lots of room gain (and lots of room treatments). A 10x7.5 foot front wall would amount to a mouth size of 75 square feet.
1. How do you model something like this? Since the mouth is the entire cross sectional area of the room, it's not 1/8th space, more like 1/16 or maybe even 1/32 space, I would think. ???
2. Should there be a front chamber? A front chamber would probably net some more spl potential, especially down low, but is that a good trade when spl levels should be more than enough anyway?
3. Would it be better to just do floor to ceiling stacks of labhorns in the front corners?
It's pointless to even try to model it without knowing it's context in relation to the room, so I haven't even tried yet.