this was the basic idea for a new high-end speaker project.
the technology insite the enclosure was taken from the Kwadrant, my previous project.
this acousticly improved form is a result of the B&W Sphere Horn principle, combined with TL optimised horns and what I call, acoustic projection technology. In comparison to a normal square enclosure, this form has less backwave and less standing waves. Therefore it doesn't realy need absorbtion material.
the small hoorn entry is responsible for a back-impedance (see B&W white papers on the Nautilus)
intensive bracings and non-parallel walls for the low frequencyies.
The 2 lowest drivers are Reflex enclosure, the lowest driver is a passive driver. The driver in the middle is in a closed enclosure. The midrange has its own special design enclosure. the tweeter compartment also covers the filter section.
Frontplaat layout. This is be made from Trespa, a very dense and acousticly dead material
Extreme high density Medite MDF
cutting the layers for the midrange section
Alumium bars are used to guide all the layers.
midrange department below and bass department going up
notice that a selected part of the midrange layers are also used to increase the enclosure volume for the upper bass driver.
all layers stacked
ready to glue all the layers together. The frontplate is only temporary to keep the right angle.
finding the fastest glue technique wasn't easy. Notice the hidden wiring
the outside of the temporary frontplaat have paper tape all around to easily remove it afterwards.
Silverwire for the Terminal and Cuppercable for the Woofer
every layer has been fix mounted to the later underneath
we lost time to make the first enclosure precisely qsuare, therefore an additional guiding plate was constructed to build the second enclosure.
for the second enclosure, a press technique has been added to have a tighter fit between the layers.
the 'press layer' leaves has a few sports to shoot the nails.
Routing the Trespa Frontplate
