Another day, another design - Tang Band/Peerless
Now, if the Peerless RMS is correct at 100W, then it will match with the TB at 30W and create a speaker to go from 80Hz to 8000 with amazing off axis (and will continue above that, but that is what I'm comfortable claiming on the off axis).
This is a WTW design. It is setup for a Linkwitz-Riley crossover (2 butterworth second orders in cascade), as now recommended by D'Appolito over his previous recommendation for a 3rd order Butterworth for MTM. Same was used for the highpass on the TB. The dB is using the 30W RMS of the TB and the 100W listed RMS of the Peerless.
This is about 8 3/8 (w) x 15 3/8 (H) x 14 5/8 (D). It's made to max out at 103dB with RMS, so long as the mfrs. were not lying. But, even then, 101 dB if you cut that in half. It will need a sub. Also, this is the Frequency Response for the Peerless to 20K:
*this is for personal use only.