Post by karatestu on Dec 12, 2019 16:38:37 GMT
Many talk of small sealed enclosure speakers as infinite baffle. Well they are not really. Infinite baffle is said to be when a bass driver has a volume for the back wave of at least ten times the Vas and the back wave is completely isolated from the front wave.
Anybody here had real infinite baffle bass or heard it ? It is said to be unbox like similar toopen baffle but without the dipole effect. You can obtain some seriously low and clean bass apparently.
I have been considering it for a while now. My living room where the serious listening gets done has a suspended floor with void underneath. It has a volume over ten times the Vas of four of my bass drivers
The guys on the cult of the infinite baffle forum warned me that my bass drivers may not have eough Xmax and could reach the end stops before destroying themselves 
But these guys are mostly American with huge home cinema theatre's playing movies with seriously low bass at ear splitting volumes.
So i thought with my small room and low listening levels it could be done with average amp power without blowing anything up. Doing IB bass has many advantages imo
* It saves a lot of space by not having huge enclosures in the room
* the bass is said to go low as the Qts of the driver becomes the Qtc of the system
* the bass quality is said to be very high when done properly
* no baffle step loss
* lack of boxy sound
* if you build a manifold with two in phase drivers pointing at each other it is said to hardly produce any vibrations
There are disadvantages of course
* the installation can't be moved
* you could end up over powering the room with bass
* low bass could excite room modes
* if in the floor the, floor to ceiling height is not divided- the best height for a woofer (ignoring baffle step) is said to be about 24" from the floor in a room with average ceiling height.
For me i think it is worth having a go with a manifold containg two opposing in phase woofers per channel. Two 12" per channel will divide the work out and lower the excursion needed for each woofer. Hopefully that will keep distortion down and help avoid any disasters.
Anybody here had real infinite baffle bass or heard it ? It is said to be unbox like similar toopen baffle but without the dipole effect. You can obtain some seriously low and clean bass apparently.
I have been considering it for a while now. My living room where the serious listening gets done has a suspended floor with void underneath. It has a volume over ten times the Vas of four of my bass drivers
The guys on the cult of the infinite baffle forum warned me that my bass drivers may not have eough Xmax and could reach the end stops before destroying themselves 
But these guys are mostly American with huge home cinema theatre's playing movies with seriously low bass at ear splitting volumes.So i thought with my small room and low listening levels it could be done with average amp power without blowing anything up. Doing IB bass has many advantages imo
* It saves a lot of space by not having huge enclosures in the room
* the bass is said to go low as the Qts of the driver becomes the Qtc of the system
* the bass quality is said to be very high when done properly
* no baffle step loss
* lack of boxy sound
* if you build a manifold with two in phase drivers pointing at each other it is said to hardly produce any vibrations
There are disadvantages of course
* the installation can't be moved
* you could end up over powering the room with bass
* low bass could excite room modes
* if in the floor the, floor to ceiling height is not divided- the best height for a woofer (ignoring baffle step) is said to be about 24" from the floor in a room with average ceiling height.
For me i think it is worth having a go with a manifold containg two opposing in phase woofers per channel. Two 12" per channel will divide the work out and lower the excursion needed for each woofer. Hopefully that will keep distortion down and help avoid any disasters.
