Yeah, I bought someAcoustic panel stuff from Amazon only a couple years ago if that and more recently in swapping out speakers and boxes and pulling apart and pulling the screws and getting rid of wood it was amazing how it fell apart just like you said. it’s not really experiencing any heat or direct sunlight or anything it’s just made of junk/stuffed it deteriorates I guess it’s kind of weird.
somebody’s lucky!! RS 225–4 back in stock 3-26 at Parts express. Rs225-8 in stock now.
Would it be worth splashing the cash for melamine pyramid foam, or is smooth melamine foam good enough? I was thinking of something like this:
https://www.amazon.co.uk/Basotect-Pyramid-acoustic-foam-120x60x3/dp/B00E62N60O
https://www.amazon.co.uk/Basotect-Pyramid-acoustic-foam-120x60x3/dp/B00E62N60O
Looks like BASF is the main European manufacturer of this melamine acoustic foam, with the brand name Basotect.
https://plastics-rubber.basf.com/global/en/performance_polymers/products/basotect.html
According to this supplier, open-cell foams with a flat surface give widest bandwidth absorption, whereas profiled foams preferentially absorb higher frequencies:
https://www.panasorb.eu/lng/en/foam-made-of-basotect/
https://plastics-rubber.basf.com/global/en/performance_polymers/products/basotect.html
According to this supplier, open-cell foams with a flat surface give widest bandwidth absorption, whereas profiled foams preferentially absorb higher frequencies:
https://www.panasorb.eu/lng/en/foam-made-of-basotect/
I am hopping on this bandwagon! I have all the drivers and XO parts on hand and happen to need another pair of speakers. While I'm at it, I would like to experiment with the HF driver in an 8" waveguide. I recently adapted a Dayton 12" round CD waveguide for use with the TC9 and will try the 10f on said waveguide. The results are pretty good so far and sound great in my big two way (15" woofer, tc9 + waveguide) but I still have a lot of xo tweaking and learning to go... now if I could just stop listening and get to work. The 12" waveguide gives me 3" of physical offset which is perfect for time alignment with the 15" woofer. I'm sure I can design an adapter for the driver to 8" waveguide to give the needed 2.5" distance needed for time alignment with the RS225 and try them in a flipped(conventional 
orientation). I will build sealed test cabinets with interchangeable baffles for experimenting but would like to ultimately build the TL. I wonder how much the TL will be affected by flipping the driver orientation moving the woofer closer to the TL closed end. Maybe I will build them as designed and build a second pair of cabinets for messing around with.
orientation). I will build sealed test cabinets with interchangeable baffles for experimenting but would like to ultimately build the TL. I wonder how much the TL will be affected by flipping the driver orientation moving the woofer closer to the TL closed end. Maybe I will build them as designed and build a second pair of cabinets for messing around with.
Hahah! For $my brain might adjust rather quickly.
Actually, I was surprised to see TC9 go up to $22 now. Everything has gone up.
All kidding aside, all 3 drivers sound great. The 10F is very low distortion and smooth. There is a certain fiberglass signature that I like for vocals and jazz.
Actually, I was surprised to see TC9 go up to $22 now. Everything has gone up.
All kidding aside, all 3 drivers sound great. The 10F is very low distortion and smooth. There is a certain fiberglass signature that I like for vocals and jazz.
