![]() ![]() Okay: Why not use adequate damping materials on the front ? LOL.Īre you paying attention ? can you see where I am taking this debate towards ? no / yes. So we accept internal damping because we need to - unless you are designing with open baffle, well, good for you, no need to brag about no issues. remember, we are dealing with what and how the front is dealing with the sound. Yes yes, there are other hardware solutions to aid in this, but that is a different debate. No one is questioning the use of damping materials on the inside, because it works. Why, because the cone material is transparent to sound and to have two conflicting notes being played almost at the same time creates distorted and ugly sound. What do virtually all loudspeaker manufacturers do inside the cabinet, they use damping materials, why, to absorb internal reflected sound. Well, as I mentioned, you need to absorb the reflected sound. We could go with a cylindrical baffle but we are not, we are sticking to a flat surface because its easier and simpler AND cheaper, so now we arrive at the question of how do we address the diffraction for this surface. Its often made of hard materials and the latest trend is using aluminum which is from this perspective, even worse than wood materials. ![]() So lets attack the flat front and issue #1: Its made of materials that do not absorb sound. ![]() Traditional cabinet solutions with a flat surface are not so lucky and usually deal with the issues by means of narrow designs - very little of the front outside the driver frame, others add beveled edges to smooth out the edge diffraction and while beveled edges is a good solution, you are still left with the flat front. The best shape is a sphere with no section of the baffle outside of the driver itself, and while there are some manufacturers that use this to their benefit, aka produce more direct sound. Ideally we listen only to the recording without reflective sound being added, and this is a huge challenge to accomplish for any loudspeaker producer. Namely the baffle "interaction" with the soundwaves being produced. Some with driver technology, some with size and numbers of drivers and some is done with the cabinet shape. This is more a technical aspect of cabinets than a visual one, but a cabinet is more than a home for the drivers, its a furniture, its pleasure and escape to another world and so naturally, we want the loudspeaker to sound just right and this goal is achieved in different ways. I just haven't gotten around to doing serious tests with it. The reason why I started this thread is do debate and get input on something I've been thinking about for quite some time. I am not going to go into depths of describing and talking about what baffle diffraction is, I am sure you are more than capable to do some basic research on the topic. ![]()
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