Subject: Re: circle of sound It is my understanding that the Bosey rim is not laminated spruce but solid spruce edge glued and end glued to gether and then the shape is carved out of that. That would keep the vibration back to the SB sine there are no plies to soak it up> Jim James Grebe Piano-Forte Tuning & Repair Creator of Handsome Hardwood Caster Cups, piano benches, writing instruments (314) 608-4137 WWW.JamesGrebe.com 1526 Raspberry Lane Arnold, MO 63010 Bosendorfer released a tech video in the late 1980"s(?), of their manufacturing plant. It showed the rim being kerf cut so it would bend around the inner rim. The inside and outside of the rim were veneered. The kerf cuts were filled with wedges and the edge(s) veneered to match. I can only assume they still do this today. Paul C
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