Swampwalker, I agree with you regarding the silliness of $500 wood knobs, but with the qualification that in a passive TVC, a knob of exotic hardwood in combination with a hardwood chassis might be desireable for resonance control or RFI rejection. Both Audio Consulting & Promitheus use the approach in their TVCs. My recollection is that RAM/AC offered the knobs as a full-boat option for the the $5K DIY TVC kit. Doubtless the notion of a $5K TVC in kit form is putting a smile on your face about now...
Of course the price of four Swiss knobs buys an entire Promitheus Reference TVC-- which tells us as much about Asian manufacturing costs and trends toward global deforestation as it does about Swiss silliness.
Of course the price of four Swiss knobs buys an entire Promitheus Reference TVC-- which tells us as much about Asian manufacturing costs and trends toward global deforestation as it does about Swiss silliness.