Holy Christmas, I had to look these up. Damn they look awesome.
Not sure if it helps at all but theres only one used one on sale in the UK:
https://m.ebay.co.uk/itm/Bowers-Wil...457840?hash=item467bc8a570:g:RzcAAOSwKkhZqBdf
There is quite a bit of difference between the S-series and the D-series.
Don't seem high to me
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