TL

3-way foorstanding loudspeaker 10"+5"+1"/WG

Drivers: Scan Speak 26W/4867 Revelator, 15M/4531, Scan Speak D2904/7000, WG148R

Cabinets: net volume 90l for woofer, BR.

Sensitivity: ~88dB/2.83V/1V

Impedance: nominal 4Ω, minimal 3.6Ω @85Hz

Combination of  ring radiator and WG is the key feature of this design. WG148R is deep enough to allow LR2 between mid and tweeter. All drivers were very easy to work with and the result is simple all LR2 crossover without any RLCs. Though WG148 does not provide as perfect results as custom profile WGs, it still makes what it is supposed to make, which is directivity match to 5" midrange. 

SS7000 H 0-90deg

15M Revelator H 0-90deg

26W Revelator H 0-90deg

Vituix six-pack for crossover design is below.

Measurements

FRs of both finished loudspeakers. This is very good match.

Measured impedances of both loudspeakers, again, this is perfect match.

Photos