Connecting studio monitors to electric piano?

I have gained with studio monitors namely the https://m.thomann.de/de/swissonic_asm5.htm and a https://m.thomann.de/de/mackie_big_knob_passive.htm. I want to hang my electric piano on my laptop in order to play native instruments, the beautiful piano samples. So I want to run the "sound" over my new monitors. How can I connect them best? Just over jack? Please help. Here are some pictures of the connections of my e-piano. Yamaha Arius Ydp 162. Thanks in advance.

According to the technical data, the loudspeakers only have balanced inputs (jack and XLR) and unbalanced (RCA) analog inputs.

The keyboard has only through the headphone outputs via analog outputs, these are unbalanced. I see two possibilities:

6.35mm stereo jack to 2 x RCA (and thus directly to the speakers)
6.35mm stereo jack plug to 2 x mono jack plugs, plug them into a DI box. From here with microphone line (XLR) balanced to the speakers.

First of all thank you for your answer. Which of the 2 variants would you prefer me? And that also means that I can send back the https://m.thomann.de/de/mackie_big_knob_passive.htm right?

If I decide for variant 2, would this DI box fit? https://www.amazon.de/...000CCSWQA/

If you want to play the pianos of NI on the notebook, you first need a MIDI connection to the notebook. The only option seems to be the USB socket. So connect piano with USB cable to notebook.

To play the sounds of NI live without major delays you need an audio interface. So buy Mackie Big Knob and buy Audio Interface. For example, the https://www.thomann.de/...nd_gen.htm

Here you can then connect the speakers at the outputs and is good.

You can also connect your piano directly to the speakers or to the interface to hear your sounds from the piano.