Polishing wood with Boiled linseed oil

[rendoman]

Good point!
The wood looks thin but the enclosures hide many bracing(2-3 times thickness) in crucial points. Not going into the specifics of the propagation in a particular type of wood, this Afromosia is a very hard and compact wood, perfectly dried and stable. I usually take into consideration many others parameters like standing waves of cab and port, ratio, shape and geometry of enclosure, eventual deflectors, tuning with specific driver (with-without filter), and, not least, the final purpose of the project (use, power, freq range).

According to my experience, the more "granitic" and inert enclosure is not always the best choice for sound. I remember in the past many tried to build very thick and heavy enclosure (bass section), a friend with 50mm walls of MDF, another one tried also a composite sandwich wall (25mm+sand-lead cavity+25mm) with a 15" woofer 300L, the bass was quite dry and not very incisive, the same woofers in a normal 19mm box well built, same specs and tuning sounded better.

I use a different approach for particular units, above all heavy subs able to go below 20hz. Here the energy is a dfifferent game and need a different approach. But it's only my point of view.
Here a couple of video , bad recorded with phone, of the speaker in action. The fullrange is new, out of the box with no break-in. I would expect to complete the period in probably 100h.