Why the huge increase in the price of Sonus Farber Amanti G5 speakers.

Many cabinets were made in China....which is now a dirty word.

hmmm, gouging ? resist with your wallet- if people stop buying at absurd price points, prices decrease. 

Sonus Faber will find out if their pricing decision was proper, or not. As with any company, from a marketing perspective they should be pricing their products based on research into what the market will accept. If they price it too low, they leave money on the table so to speak. If they price it too high for their intended market, they suffer from lost opportunity. As most of us do, I vote with my wallet. 

Buy used if they are available, you can save a lot of money.

It appears that SF imposed even more price increases on their reference line, one step up from the Amatis. Some of these have been out for quite a while, so I doubt it has to do with R&D, which would have been baked into the original price and presumably recouped already. The tariffs likely have some impact and Bose may just want to see what the market will bear. Seems a bit risky given the negative reaction to the Bose acquisition-justified or not-and the fact that they are pushing these speakers into a price range where they will be less attractive from a perceived quality standpoint compared to the competition.

Of course, Bose may not think it matters much. Bose likely did this deal to enhance its position in the automotive market where the real money is to be made.

Interesting and  not a positive for the high end audio market.