+1 mac48025 and fliz; nice to read of shared sentiments, and thanks for provided link, fliz - bang on, I'd say.
melbguy1 --
@fliz, the new Magico S5 Mk2 speakers use 2 x 10" bass drivers which handle the low, mid & upper bass crossing over to the midrange at about 200Hz. The new 10" bass drivers have massive magnets which help saturate the structure around the coil which prevents eddy currents forming, which in concert with the lighter and stiffer hybrid carbon Nano-tube/Nano-graphene cone material should reduce distortion & improve dynamics.
This sounds to be a very potent bass configuration, but in regards to the 2 x 10" woofers here used their chosen cross-over frequency (i.e.: 200Hz) sits in a rather sensitive area in the upper bass, and so would likely not have the desired effect - at least as advocated by author "W.A.J." to the article via supplied link - in regards to the equal importance of the lower mids (i.e.: ~250-500Hz) here mentioned.
The excursion rate of the voice coil for the new 10" bass drivers is measured at 15 mm linear movement, twice as much as its predecessor, thus enabling plenty of air to be moved. The S5 Mk2 is also 1db more efficient than the old S5 (89db @4ohms), so it should have impressive bass.
Bodes well for impressive LF performance, something I'm sure my own speakers (w/15" drivers in folded horns) can only dream of. There's obviously a trade-off here; either have the dynamics, presence and physicality a horn-loaded 15" unit (cut off at ~500Hz) can present from the lower mids and down to ~50Hz, or have lots of it sacrificed for strong LF-performance further down in the 25Hz region or thereabouts from smaller non-horn-loaded units. A horn could do this as well (i.e.: extend to 25Hz), but would have to be seriously massive in size to do this. That said 89dB is a far cry from 105dB sensitivity, and 15" horn-loaded drivers exsert very limited amounts of excursion which comes as a significant benefit in regards to their reproduction of the lower mids, also coupled with the high sensitivity and low distortion that follows.