DIY Flat Panel Speaker Love

[Unbiasedsound]

More specific

[Zene]

Unb ... mrpolystyrene.co.uk got me to page that has no inputs. No luck with ebay, either. Assume is ID10T error. Will you help once more?

[Zene]

Thanks much Unb.

[Unbiasedsound]

I get mine from the store.

[Zene]

Higher grades of EPS are 3 and 4 lb density. Ads are not showing. Can you supply guide to the better stuff?

[Unbiasedsound]

It needs to be the higher harder density/grade EPS....The more common standard readily available EPS is used for insulation and or packing as these are low to medium grades which can sound muddy due to it being to soft....The higher grades are not as common and harder to find in your local hard ware stores.....I order mine off of ebay.

[Zene]

Good, I have some EPS that doesn't look flakey.
I'll try it.

[Unbiasedsound]

Are your 1/2 " panels XPS?
I do have some small bamboo ones to try. Ordering balsa as well. I plan on trying many and larger ones, too. To be proven, but sure larger panels even cutoff on bottom end could exhibit better upper bass response.

No, they are EPS which is Expanded Polystyrene.....EPS seems to have warmer tones then XPS.

[bradley.s]

Regarding fine air particulates -- in general -- this DIY filter is a good option. https://www.youtube.com/watch?v=kH5APw_SLUU

I have a Foobot indoor air quality sensor plus the Dylos fine particle sensor. That cheap box fan knocks down larger particles fast and the smaller ones over time (apprx 24 hours.) However, I tape on a 20x20x4 furnace filter instead of a one inch. Clean air will keep your heart ticking.

[Zene]

Are your 1/2 " panels XPS?
I do have some small bamboo ones to try. Ordering balsa as well. I plan on trying many and larger ones, too. To be proven, but sure larger panels even cutoff on bottom end could exhibit better upper bass response.

[Unbiasedsound]

My Bastat panels have great mid range frequencies and they are 12inchs width X 16inchs height X 1/2inch thick. You can try that size to see if it sounds to your liking.

[Zene]

Unb ... aiming for around 300hz, which is a safe frequency for my OB woofer. And, that puts the panels to carry the critical 300hz to 3khz.

[Unbiasedsound]

What frequency range are you going to use the 25's?

[Zene]

Unb... I want to use the 25's because of their higher frequency response. Sanding will not be an option under any circumstances. That is why I'm asking about the combination quality. I can take care of the bass. I would try different panel sizes and types.

[Unbiasedsound]

No bass? All exciters run full range so there will be some bass...if you want no bass the only way to do it is to use a crossover....as for low output the smaller exciters have less bass output then the bigger exciters.

Are you sanding indoors????? That is a no no because the fine dust particles can be very hazardous to your health especially if it gets into your lungs.....Always sand outdoors with a filter mask on and eye protection as the fine dust can even go into your eyes.....Also if possible use a shop vac to suck up the dust while you are sanding.