The definition of a full range design seems to 40-ish and beyond
The F4Q4 's pictured above,
played with testing in a variety of Placements, just because, hey it's a first-rate DIYSG and Curt Campbell design . . .
as SS, where the red 88 is now,
tight on wall, XT32 put the xo @40
As L/R , on (improvised) stands to get the horn aimed closer to ear level- XT32b - 40
(it is a sad picture to see the F4 and the F15 side by side, the disparate sizing of the SEOS horns may cause temporary temporal displacement)
and after some temporary speaker reassignment / connections wrt OSD as ATMOS with only FH's xo-60
but add just one sub, set everything to small and POOF!
while there be overlapping roll-offs curves
A while back, an exchange with
revealed that a HTM12 modded to be 18" deep, using the same baffle, could be good to 50 hz
and as in all compromises here at AVS-it depends . .
If I had the room, some dual 8" F8's or 893's just might replace my HTM6's in the mancave. there the CC is a F6CC.
and 3 BFM THTLPs, 2 x 12" sealed for near field and 4 x Aura shakers on the seating.
great place for more intimate quarantine
props to the DIYSG gang-