[TIA audio NTSC vs. PAL]

Yes, 6 audio register pins (or whatever you call them): A0 - A5. I've never really played with hardware before, but I was thinking it would be interesting to play with the audio abilities of the TIA directly. Thanks for all the info.

[TIA audio NTSC vs. PAL]

I was looking at this pinout graphic online and it shows the difference between NTSC and PAL TIA chips.

 

They both have the 6 audio register pins in, but the PAL only has a single audio out. I was wondering if anyone knows if the two channels are mixed down for the PAL out or do you only get one channel?