SUBWOOFER ROCK SOLID BASS

[xsd1998]

Here are the pictures.
adding 200g to the P.Rs using hydrojet cuter to open the holes
gluing the sides polishing and adding the bracing taring the interior
and finally adding the drivers and connectors

[xsd1998]

Using the bspv 300 plate amp from bk electronics
and there final placement

[xsd1998]

They use standard industrial epoxy for the job i think you can even get it
at a hardware store

[xsd1998]

Sorry the model is BSBP V 300V from BK Electronics

[5th element]

Wow those look really effective, the binding posts look identical to the ones I bought of ebay a months or two ago. How much does all the stone weigh? The only thing I might be concerned about is the little stone legs rattling against the hard floor under hard drive. But if they weight enough this shouldn't be a problem.

[xsd1998]

there are 2 legs in front and 1 in the middle at the back under the sub witch keeps
the sub always level and at 50 kg i don't think they are going anywhere

[xsd1998]

Thank you worked it out

[5th element]

At 50kg indeed not!

[xsd1998]

Binding posts are from ebay......

[bentoronto]

A clever person experimenting with box solidity and double-wall construction made a sturdy MDF box and put a driver inside (no holes in box). Said it leaked sound like a sieve. I don't know the physics of playing cone drivers from inside sealed boxes (should it make a lot or a little sound just sitting in a sealed box?) or the psycho-acoustics that lead to declaring something a "sieve" (down 60 dB might still seem leaky?). He later explored using a guitar contact mic. He found roofing tar paper to be a good dampener.

Art Ludwig

Aside from needing a fork lift truck to move it, this marble box seems to address the rigidity issue in a terminal way!