Well, we can only speculate on Hypex's pricing structure. But I would hope, for the sake of competing OEM customers, that it is not fluid...
To anyone who has worked in product development, a change in price from the initial pre production estimate, should not be surprising. It is easy to be overly optimistic on final price before one has actually put a product into production. I suspect that Merrill is just charging what they need to try and stay in business. Billet machined chassis are very expensive to produce, there is just no way to get that done cheaply. Of course, they ought to be able to do the same design as dual mono for around $3K less... That might be a really good deal for those who are not hot for mono blocks.