Not sure if I'm choosing the right cables for JBL 308P

I’m going to be purchasing some JBL 308P’s and I’m trying to make sure I purchase the correct cables. The speakers will receive input from this DAC (which will receive input via optical out from my TV). I plan on using this male 3.5mm to dual 1/4 TRS to split the signal then I planned on using these speaker cables but since I’m still new to “higher end” audio equipment I’m not exactly if I’ve chosen the right cables/adapters.

All advice appreciated.

Why not buy something like this (RCA to 6.3mm):

Yeah I was being an idiot, with the way I would’ve been doing it I would’ve been sending a stereo signal to each speaker lol. Thanks for the help!