saxobari: Much has been posted over the years about the effect of a curved neck on straight and curved sopranos. I think a curved neck has a negative effect but others like that sound. I even use a straight neck on my curved Yanagisawa just because I much prefer the sound of a straight neck on sopranos (fixed and removable neck-designs).
I bought two after-market Yanagisawa soprano necks (both solid silver) separately off of eBay years ago. Maybe you could keep an eye out for similar Yamaha necks to test the theory. OR, if you can find a store that has a 675 in stock, maybe you could arrange to test the theory. Of course, much depends on what you want from your 675 that isn't there now. DAVE
I bought two after-market Yanagisawa soprano necks (both solid silver) separately off of eBay years ago. Maybe you could keep an eye out for similar Yamaha necks to test the theory. OR, if you can find a store that has a 675 in stock, maybe you could arrange to test the theory. Of course, much depends on what you want from your 675 that isn't there now. DAVE
