Posted by Tom Mason on April 04, 2003 at 06:53:12:
In Reply to: Re: Re: Re: bass bone posted by An... on April 04, 2003 at 00:37:18:
The last 2 or 3 50B2O's I've seen have independant action on the dependant valves. The yamaha 622 I mentioned in another post has the same setup. I don't know if Bach offeres the setup as an option for 2 thumb anymore, you might know more about it though.
Tom Mason