elekit tu-8200r outputs in mono

My Elekit 8200R went together without a hitch, and sounds great! Just one thing . . . it outputs in mono. I'm thinking either a solder bridge or maybe the output terminals have somehow developed crosstalk.

Anybody else have (had) this problem? Any ideas?

Thank you all very much!

Chuck
 
I would first look at the input wiring, rather than at the output.
You can try playing the amp with only one input cable plugged in
at a time, and see if only one speaker at a time plays.
 
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