SP12B would be a nice choice, IMO, for what the OP wants to do...
I live in Texas, South of Austin, in the HOT AS <expletive> BELT.Where-ish do you live?
A long-term loan of something EV-ish could, perhaps, be arranged
Oh, you know what could (?!?) be interesting?
A pair of EV "Wolverine" LS-15 OEM, branded RCA, and - at some point (not by me!) - de-whizzered.
For comparison, here're a pair of normal LS-15s avec their whizzers.
info on the LS8, LS12(A), and LS15 from EV at https://www.electrovoice.com/binary/LS8, LS12A and LS15 EDS.pdf
Note that the sensitivities are given relative to the EIA specification (1 mW at 30 feet, or something like that); add ca. 50 dB for 1watt @ 1 meter. This guy sez 49 dB EIA sensitivity?