Had a closer look, there are 2 with block bamboo core, one with really smooth richlite, the other a bit less. The blocks are strips, not sure how such long ones ar emade, the plyboo we used had actual blocks, not quite cubes.
dave
dave
One thing to watch out for with phenolic/GRP/metal faced wood is it's higher Young's Modulus, giving it high Q high frequency resonant modes. Ok for subs but could prove hard to damp in the midrange.
While general consensus is that highQ is bad, consider that if it is at high enuff frequency and high enuff Q, the liklihood of music providing sufficient continuous input into such a narrow band at such a high frequency is VERY unlikely.
Toole also shows that if the Q of the resonance is higher, and it is excited, it is less likly noticed.
Damping these potential resonance is counterproductive in my estimate.
A quote from hifijim that is relevant/
dave
Over the years I’ve had access to some exotic composite panels, yet never considered them for speaker cabinets since more common materials can perform very well.
I had seen audiophile products that did just that, but figured it was to help justify a higher price, and appearance/bragging rights for the owners.
I had seen audiophile products that did just that, but figured it was to help justify a higher price, and appearance/bragging rights for the owners.
just an update from me,i have sent the guy on audio qualia a message to ask if he would test richlite,i'll report back when i hear something.
I think fern & roby's "raven" speakers (using a seas full range 8"), their front baffle is richlite.