Sansui AU-xxxx series....split pre/power question

bolero

Super Member
the backs of these amps have a pre/power amp jacks, which I always assumed needed RCA jacks plugged in, for the amp to work as a standalone unit?

today I accidentally fired it up withOUT those RCA's, and it seemed to be working fine

are they unnecessary?

is it better not to use them?

fwiw it's an AU-7700

thx!
 
I imagine it has a connected/separated switch on the back like my AU-7900 so jumpers are not needed.
 
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