To me, Bob made the really relevant comment early on:
"The LS50 begs to be high passed" (maybe low-cut would be clearer).
The speaker looks great with smooth (and very gently falling off-axis) frequency response. However, it can't produce really clean output below 200hz and is a mess at 100hz - provided that the power in/SPL in the test is reflective of that in actual use - which is, in turn, dependent on any individual listener's preference in a given installation.
IMO, if you're using this speaker for listening to wide-bandwidth program material at real world SPL, a high quality, actively crossed sub-woofer will almost certainly produce a tremendous improvement in bass response. I'm not sure whether I'd cross at 100hz, 200hz, or somewhere in-between, but I'd definitely add a subwoofer (or two in stereo) for this type of listening with the LS50.
"The LS50 begs to be high passed" (maybe low-cut would be clearer).
The speaker looks great with smooth (and very gently falling off-axis) frequency response. However, it can't produce really clean output below 200hz and is a mess at 100hz - provided that the power in/SPL in the test is reflective of that in actual use - which is, in turn, dependent on any individual listener's preference in a given installation.
IMO, if you're using this speaker for listening to wide-bandwidth program material at real world SPL, a high quality, actively crossed sub-woofer will almost certainly produce a tremendous improvement in bass response. I'm not sure whether I'd cross at 100hz, 200hz, or somewhere in-between, but I'd definitely add a subwoofer (or two in stereo) for this type of listening with the LS50.