Effect of 'Soft' baffle surface.

Nuuk · 7th December 2003, 09:02 AM

I have been playing around with some trial open-baffles now for a few months. Seen HERE

The baffles are just a piece of chipboard (particle board) but with a sheet of one inch (25mm) thick polystyrene foam on top.

I just wondered how much the 'softness' of the polystyrene foam affects the sound, particularly with regard to the step response.

Any comments guys?

Dommi · 7th December 2003, 09:58 AM

Hy,
i don't know if i understood you right, but you have to be very canny with any kind of damping material. I also use open buffle system and the reproduction is verry natural. But whan i use to much damping material like felt, the reproduction is to dull. I implemented 2 dipole Sub in my system with an active amplifier
from Thommessen. You can see it on my homepage under www.highend-diskus.de " meine Anlage ". Is a german page, but i think you will find the pictures. I serched 15 years for a loudspeaker like this. Now i have find it !!! For questions about construction mail me .

In this Forum i submited 2 pictures, look at system pictures and discriptions !

Best regards
Dommi

Volenti · 7th December 2003, 11:39 AM

I've been exprimenting with dipole speakers as well, pic and pic .
I don't think the polystyrene will change the step, other than what would occur with rounding the corners, it should effect resonance somewhat though (in a good way), especially if you have it glued on well.

7th December 2003, 09:02 AM	#1
Nuuk diyAudio Member Join Date: Feb 2003 Location: Somerset, SW England	Effect of 'Soft' baffle surface. I have been playing around with some trial open-baffles now for a few months. Seen HERE The baffles are just a piece of chipboard (particle board) but with a sheet of one inch (25mm) thick polystyrene foam on top. I just wondered how much the 'softness' of the polystyrene foam affects the sound, particularly with regard to the step response. Any comments guys? __________________ The truth need not be veiled, for it veils itself from the eyes of the ignorant.

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7th December 2003, 09:58 AM	#2
Dommi diyAudio Member Join Date: Dec 2003 Location: Frankfurt	Hy, i don't know if i understood you right, but you have to be very canny with any kind of damping material. I also use open buffle system and the reproduction is verry natural. But whan i use to much damping material like felt, the reproduction is to dull. I implemented 2 dipole Sub in my system with an active amplifier from Thommessen. You can see it on my homepage under www.highend-diskus.de " meine Anlage ". Is a german page, but i think you will find the pictures. I serched 15 years for a loudspeaker like this. Now i have find it !!! For questions about construction mail me . In this Forum i submited 2 pictures, look at system pictures and discriptions ! Best regards Dommi

7th December 2003, 11:39 AM	#3
Volenti diyAudio Member Join Date: Aug 2003 Location: Australia	I've been exprimenting with dipole speakers as well, pic and pic . I don't think the polystyrene will change the step, other than what would occur with rounding the corners, it should effect resonance somewhat though (in a good way), especially if you have it glued on well.

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