Wednesday, May 22, 2019

Cube of other sumetric shape in acoustics


Almost any textbook on acoustics would quickly dismiss a symmetrical shape such as a cube for a recording studio or a loudspeaker enclosure.


Yet possibly the most successful in sound quality recording studio worldwide (CBS 38th street church in New York) must had been 100ft x 100ft x 100ft [Laico interview AES, YouTube].


And possibly the most successful monitoring speakers, the Auratone 5C was 6.5in x 6.5in x (5+3/4)in





How would a (symetric) triage based pyramid (Vicky's idea) with equal sides sound like? Such a shape is called tetrahedron.
https://www.dkfindout.com/us/math/geometry/triangle-based-pyramid/


How would it sound with a fullrange speaker and enclosure made from 2.5mm thickness linoleum?


How would nice linoleum colored pyramid monitoring speakers look like?


They should also be easier to make than cubes. Only major tool needed could be a large compass to draw triangles with equal sides, one next to the other:
https://www.dkfindout.com/us/math/geometry/triangle-based-pyramid/


Cable could just come of from the back bottom like a cat' s tail.


Sides can be joined with thermal glue or welding rids of same or other color etc.


How would small linoleum ones look or sound like, baby Pleiades pyramids?


How would linoleum Pleiades Auratone 5C type cube monitoring speaker with Tesla 5in TVM ARX 130-20/4 drive unit compare with a tetrahedron version? The cube with Tesla speaker and linoleum gives + or - 3dB from 100Hz to 14KHz, excellent transient quality as well.


Can a 1 transistor amplifier fit inside a small pyramid? For example an active monitoring speaker or a small external amplifier inside a pyramid. Everything including Bulgin battery holder etc and suitable fuse in series for safety. Would linoleum be safe to use?



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