You would think so, but... First, of course I meant most DSP speakers that are being used, but it's also true of most speaker models being sold, and well as the numbers (fewer high end speakers are sold that low end).Isn’t that because most are older models? Anything new and at least a bit respectable will have DSP and digital inputs. Few exceptions obviously.
But, without doing any serious survey of the latest speakers, I can look at a few fresh models of professional grade and see lack of digital inputs. The iLoud Precision models don't appear to have it (USB is for control, as far as I can tell in a quick look). I see Neumann and other DSP speakers with no digital input, but I don't have the time to figure out the timelines, at the moment.
I don't know—is it lack of standards holding things back? You could implement digital audio a number of ways, AES/EBU, AVB, USB, MADI for instance. But only Ethernet and USB are universally available on computers, but not audio equipment. You need one connection to a speaker, then there can be a different connection between speakers. Coincidentally, I just switched over my digital audio system to MADI the past couple of days, but of course it has to be fed from USB of similar. When you think about it, there is no single obvious choice at the moment, especially if you want to handle home and pro audio. I'll have to look deeper when I have to, and see where things are heading.
(I worked on some of the early DSP studio monitors in the mid '10s, USB for control and RS485 to network the speakers together from there, but no digital input.)
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