Thrift Store find, Surround Decoder ID help?

[iKokomo]

Ok, so I found this Track Scan Inc. Model Number SR-5112, Item Number: 33000 at a local thrift store for $3USD and I was wondering exactly what this unit was.

Doing a google search brings nothing up about this unit, but the name Track Scan brings up a company that makes racetrack cb type scanners.

They do not say anything about being a home theater or a company that would make a surround decoder.

My question is, what exactly is this unit or what is it used for? It looks like a neat thing which is why I bought it for $3

Thanks for your help!!


[url=https://flic.kr/p/MHoFe1]
[url=https://flic.kr/p/NaC4ai]
[url=https://flic.kr/p/NaC42T]
[url=https://flic.kr/p/MHoF5U][/url][/url][/url][/url]

 

[iKokomo]

EDIT - Photo of the other side

 

[rojo]

Looks like an AC3 / DTS DAC to me. Fancy. Example usage: Plug a Blu-Ray Player's coax out into this gadget, then plug three 3.5mm -> RCA Y cables into the other end to go to a receiver or multichannel amp that doesn't decode AC3 or DTS. Then make some noise.