The retailers than make their own, individual decisions about changes in the price that gets charged to us consumers.
It doesn’t surprise me that the first public knowledge of this sort of thing comes from a third party. It wouldn’t surprise me if we (consumers) never hear of this set of increases directly from Harman or even from their various distributors around the world, such as Amplis in Canada.
Manufacturers’ prices to their distributors are almost never released to the public, and distributors may actually be prohibited contractually from sharing their details.
Yes, Matt, I understand what you say, a valid point.
However, suppose that i'm a distributor. I can also invent myself a supposed price increase, just so I justify my price increase, attributing to other factors.
This happens all the time and has happened many many times. At least in my city, with film retailers. With all sorts of made-up stories. Some years ago the classic excuse was "i need to raise my price because Kodak is not producing B/W film anymore". Also: "my distributor told me that Kodak is not producing <insert currently produced film here> anymore".
They told this to me (and other consumers) every year. The same lie even has been repeated year after year. Yeah, they have ACTUALLY told consumers that Kodak has stopped producing B/W film (or color film) more than once in a decade...
So, Kosmofoto shows NO source. It can be just as you say: a source that can't be disclosed. Or it can be just a fabrication. A win-win for retailers and distributors.