What followed me home/do you recognize connector?

Disabled Account
Joined 2002
Pictures are of an item I got for free off of online classifieds described as "800W amp for home theatre". It is a strange beast, obviously chassis rescued from another complete system. It is 2 channel input, labelled L and R, but 3 speaker terminals.
Punching in numbers into Google yields nothing but "Panasonic" and "subwoofer".
Looking it over, my guess is it is rescued from a 2.1 home theater system. There is 1 huge amp module and 1 narrower, longer module.
I think a big clue as to what it might be would if someone could recognize the 25 pin connector in the picture. I think that is likely a proprietary audio AV interconnection such as several manufacturers have had in the past.
 

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