Speakers connections on ASL 1009???

I just looking my system over and want to make sure everything is connected proper. Just wanting to confirm that the terminal labeled "0" is the positive terminal, while the "4 ohm/8 om/ 16 ohm terminals are negative??

Thanks in advance,
Just so long as they are both connected the same way, it simply doesn't matter. Music is A/C.
Swapping BOTH will produce an 'absolute' phase change which is beneficial on some music. Some amps/pres, have an absolute phase switch. My PSAudio is one, as was my now ancient NAD1700.