So I spent 2½ years painstakingly designing every minute detail of this build, down to winding my own inductors, teaching myself Solidworks CAM, laser engraving, pcb etching, and the fanciest woodwork I've ever attempted.
I basically watnted to make a speaker that looked as much as an off-the shelf hi-fi product as I could.
Drivers are reclaimed vintage Sansui T-128 horn tweeters, Dayton Audio RS100P-4 mids, and SIG225-4 woofers in a double bass-reflex design.
20mm solid Black Walnut waterfall cabinets with bookmatched front baffle, inlayed with a stripe of Tasmanian Blackwood and Cyprus Pine, and Spotted Gum accent rings around the drivers.
Walnut veneered birch ply internal bracing and rear panels.
Finished with probably a dozen coats of both linseed oil and polyurethane then polished to a near mirror finish.
Self-designed crossover, tuned by ear over the course of several months, with CNC'd pcb, component supports and brass hardware.
Custom machined, acid etched and painted trim for the tweeter and name plate on the rear made from 6061 aluminium.
The "ENIN" brand name is obviously not real, but is a name my friend and I came up with for various design work we've done over the years, so if I ever were to start a speaker company, this would be it.
I spent days just choosing the fonts, and even polished the heads of the nails that hold the plates onto the rears.
All external screws are black-oxide stainless steel torx drive, with the rears attached by brass thread inserts for serviceability.
And to top it all off, they sound fucking incredible.
I followed no plans and made no measurements or calculations. Just went with what looked right and sounded best
Final size, 560x290x380mm. Final cost, with the CNC machine I had to buy and the 6 linear meters of furniture-grade walnut… probably somewhere near AUD$4.5k.