Like L100 et al. with overly forward midrange and rolled-off highs, S70 MF and HF controls "interact" in measurements due to phase interference of drivers running free above their respective highpass filters.
If there's a sweet spot, only JBL's "Tilt-A-Speaker" might find it; it sounds different from every angle, and best, generally, with the midrange dialed nearly off.
Bass is extended, but somewhat flabby. No weights on the PR12 passive radiator.
Internal dims: 29.5" W x 22.5" H x 12" D = 4.61 cuft.