Tom,
I recall that Rob experimented with building a larger SASS and found
that it picked up low frequency sound better than the head-sized SASS.
I couldn't hear any difference in sound quality with various SASS
construction materials. I did once try putting a hard facing onto the
foam but I did not like the results, it had a peculiar resonance,
maybe I should have glued the facing on more thoroughly, its possible
I'd only used BluTak.
Try it and see, is my recommendation :-)
Vicki Powys
Australia
On 28/05/2018, at 7:12 AM, [naturerecordists]
wrote:
>
> I finally got around to building a travel SASS. (Thanks again for
> the excellent write-up on your site, Vicki!) I made it out of
> recycled shipping foam that has the same consistency as a yoga
> block. 35mm thick, and I managed to snarf tons of the stuff from a
> shipment we received at work.
> I remember on the DIY Stereo Boundary Microphone Blog, in the
> comparison between your SASS Lite and the SASS-P with MKH-20 mics,
> that Rob Danielson mentioned that the softer surface of the SASS
> Lite might have rolled off the LF sooner than if it had had a harder
> surface. How critical is this?
>
> The reason I'm asking is that I can apply a hard surface to the foam
> SASS I just built by using lamination plastic, similar to the wing
> surfaces on a foam RC airplane. But is it enough to have a hard
> surface like this, or does the hard layer have to have some mass to
> it, similar to the aircraft plywood SASS I built several years ago?
>
> Thanks,
>
> Tom
>
|