harbeth M40's v spendor SP100's

has anyone heard these two speakers and are the more simliar than different.

can they compete with the bigger Vienna, Wilson etc speakers that go down to 25hz for bass extension and finese?
neither go as low as the largest boxes, but both are certainly 'classic' speaker designs.....destination products indeed.
I compared auditioned Vienna Grand Beethoven and Spendor SP100R. Choose SP100R finally as they sounded more natural.