Common Ground amplifier?

GTAVERNA

Hi, I own a pair of Polk SDA SRSs (1st generation). I have twin blade interconnects for the speakers. I'm looking into finding a vintage Sony TA-N77ES power amplifier. What I was wondering is if you could let me know if it's a common ground amplifier. Thanks

zingo

Do you have a multi-meter?

[Deleted User]

According to the amp's schematic both channel's negative terminals are tied to ground. But don't use the amp in the bridged mode with the SDA cable connected.