Monarch eem-3000

So here’s somewhat strange and rare digital dealy Monarch EEM-3000. And it’s almost 1:1 copy of Phonic PDD-3000 digital delay. Even digital delay line board inside has Phonic, not Monarch name ;).. Actualy I couldn’t find anythin about any audio equipment maker named Monarch.
Nice thing that manual has at least an analogue part schematic (~900Kb png file).
Again.. Can’t post any samples for now. Need a proper sound card ;)