You want speaker pr0n I'll give it yerr...
A couple notes about this project just to recap, even though it's far from finished.
I got these Tannoys because they are some of the best sounding speakers I've ever heard. No they're not full range, but from about 90hz and up they're very special.
They're high power handling, high efficiency PA speakers to be used with subs.
The sound:
Very dynamic and punchy, immediate, incredible texture of real instruments, especially strings. They image very well, soundstage is huge and deep with tons of detail. Listening to music on these is a real treat and I'm very fortunate to have lucked into them.
The cabs they came in are ugly, so I wanted to make them look better without changing the sound. The Tannoy owner's manual stated the cf to be only .56, elsewhere online I found out that the port tuning is 70hz.
I cut up some old 1960s Fishers for the walnut, it was a clean kill and honors Eywa.
Vintage Altecs were the inspiration for the rectangle front port. I wanted the new cabs to be as tall and wide as possible, to get the driver up high so that the stands can be as short as possible. Since the net internal volume needed to be only .56cf the cabs just turned out shallow front to back. The shape is also kinda reminiscent of the vintage Tannoy Little Red Monitors.
All of the internal bracing, mounting cleats for front & rear baffles and port displacement, speaker displacement is accounted for so that the net volume is .56cf. The port is tuned to 70hz.
The plan is to build bespoke stands for these, also out of old stock walnut from gutted speakers (Eywa will feel so honored) and grilles with vintage style fabric. There's also a set of Dayton 15" PA subs new in boxes lurking about, many more power amps and an electronic crossover, so the future looks bright.
These speakers are absolute keepers.