I assume you have in view some sort of "decoupling"? - Christopher Witmer - High Efficiency Speaker Asylum

High Efficiency Speaker Asylum

Need speakers that can rock with just one watt? You found da place.

I assume you have in view some sort of "decoupling"?

Christopher Witmer

In Reply to: Calling all open baffle experts posted by VJR on March 14, 2007 at 21:03:47:

If decoupling is what you have in mind, the primary aim of decoupling is to minimize transmission of vibrations from the driver to the baffle, so that the baffle doesn't itself act as a huge vibrating diphragm, coloring and "muddying" the sound.
As a practical matter, if you have a very slight gap between the driver and the baffle, the sound will not suffer noticably due to the small amount of "sound leakage" through that gap.
There are "edgeless" drivers that are built with a small air gap between the cone and the frame -- in other words, there is no surround by design -- and these have just this kind of "leakage" unavoidably, but when the drivers are used properly the results are fine. (Obviously you couldn't easily use these in a sealed "acoustic suspension" type enclosure.) Such drivers could be used in open baffles with no problem.
However, if you are going to decouple the driver, make sure you really decouple the driver. If you have washers but the screws are tightened down tight on top of them, the driver and baffle will probably be effectively coupled.
The other thing to be careful of is, if the baffle is the ONLY place were the driver is supported, you don't want these supports to be flimsy. A driver that has the freedom to shake itself in its moorings is going to be a poor performer.
Most people who decouple their drivers from their open baffles have devised a way of solidly supporting the driver from behind, usually at the motor.

Here is how one fellow does it (Open in New Window)

This post is made possible by the generous support of people like you and our sponsors:

Follow Ups Full Thread

Topic - Calling all open baffle experts - VJR 21:03:47 03/14/07 (6)

Re: Calling all open baffle experts - VJR 09:28:22 03/15/07 (0)

Re: This stuff works well...... - hitsware 09:13:09 03/15/07 (0)

that lets me out ...... - Elmo 06:15:34 03/15/07 (0)

I assume you have in view some sort of "decoupling"? - Christopher Witmer 21:44:32 03/14/07 (2)

P.S. if you have access to Sorbothane sheet, that has good vibration damping (No text) - Christopher Witmer 21:46:51 03/14/07 (1)

Re: P.S. if you have access to Sorbothane sheet, that has good vibration damping (No text) - VJR 22:35:55 03/14/07 (0)

Follow Ups

I assume you have in view some sort of "decoupling"? - Christopher Witmer 21:44:32 03/14/07 (2)

P.S. if you have access to Sorbothane sheet, that has good vibration damping (No text) - Christopher Witmer 21:46:51 03/14/07 (1)

Re: P.S. if you have access to Sorbothane sheet, that has good vibration damping (No text) - VJR 22:35:55 03/14/07 (0)

You can not post to an archived thread.