Linkwitz Pluto. The mid-bass is in a damped transmission line with a 40dB return loss (Like a B&W Nautilus)with cylindrical enclosure that may be as stiff as 4" concrete. The tweeter is unusually beefy allowing for a low cross over that means its nearly in the same spot acoustically as the mid-woofer. They're actively bi-amplified with cross-overs built using 1% resistors and 2% capacitors.
Tweeter availability is currently a problem.
$3K assembled from Wood Artistry.
$800 to build from parts
Tweeter availability is currently a problem.
$3K assembled from Wood Artistry.
$800 to build from parts