I've had to edit your links to make the images appear. You need to paste in the direct image BB codes which are provided by your image host website below the uploaded images.
tomekpener wrote:is this controller passive?
A passive controller doesn't usually need power. I suspect this is an active device, partly because it appears to have a power LED on the front panel, and partly because it obviously takes unbalanced inputs and delivers balanced outputs -- which is most commonly achieved with active circuitry.
I have just received this controller today and struggles with determining who's the manufacturer, and what are its specifications.
I don't recognise the manufacturer logo or product name I'm afraid. Hopefully someone else will recognise it.
But it's not really a 'monitor controller' in the usual sense of the term since none of the usual controller controls are provided (overall volume, dim, channel solo/mutes etc). Instead, this appears to be a simple multi-channel precision trimmer which is presumably intended to help adjust the relative volumes of speakers in a 5.1 array.
Since it doesnt have rack ears I would assume it was designed for use in a hifi system, perhaps taking the outputs from a multichannel disc player to feed to professional speakers.