I put this under a separate thread with the understanding that the audience for this thread might be a 100% exclusive union with the orthodynamic thread, because it's really a separate issue, and is not necessarily an issue indigenous to orthodynamics. blah blah blah future audience growth potential blah blah blah
So without preface, let me start with my fundamental question:
Why felt?
I mean, there are other materials that are flexible and dense at the same time -- corduroy, for example, or perhaps certain dense weaves such as linens or velvet. And I ask not to question felt's supremacy, but rather as a learning exercise. What is it about felt that makes it superior? Is it its chaotic nature (no weave implies no consistent surfaces to reflect any one particular frequency)? Would I want felt with a backing or not?
Alright, yes, I went to G Street Fabrics (for those not from this area, G Street is a high end fabric store -- they have, or can get, anything and everything) and looked around. Found some nice...uh, something, might be felt, might not, not sure, didn't ask. Price was less than $3 so I bought it. Worst case, I can fix any holes in my pea coat with it. But while I was there I (uh) "felt" a bunch of other materials that I couldn't imagine would be any worse. I mean, felt just seems so acoustically transparent compared to some of these things. What is the goal? 100% absorption, zero reflection would be the ideal towards which we strive, right? In a more realistic world: high, frequency-independent absorption, low -- yet still frequency-independent -- reflection would be the characteristics we seek, right? I mean, we want to reduce the backwave as much as possible (except in the rare cases of bass reflex), and the worst offenders are the bass frequencies, right? Or in the small enclosures of headphones, do priorities shift, do we suddenly become more interested in higher frequencies as well?
So...enlighten me, I'm all ears. I do intend to start with the orthos, but there are other headphones that I'd be interested in doing interesting things with, perhaps putting some ribbons in some sealed enclosures...
I still haven't gotten together with Justin to feel his uberfelt, but I didn't want to expose him unnecessarily. So I can't compare what I got with what he has, or even get his opinion on it.
PS Should I wash it? It was in the scraps heap, so there are lots of loose threads and dust on it.