Speakers for digital piano

You’ll probably want powered speakers. Ensure there’s an output port of some sort on the piano to allow the connection of these. Something like AudioEngine A2. You can wire the piano directly to them with a headphone cable, the PC with a USB cord, and a laptop via Bluetooth. 

Why would the table make the piano sound worse?

I had my stereo components in an entertainment console circa 1988 in my basement and when I finally replaced it with a solid component rack the sound quality improved immeasurably. go figure. Can you return the table?

Isolation footers under the keyboard?  Something like the Isoacoustics Oreas?

+1 noromance! Good advice! Powered speakers are the way to go!

I don’t know whether you want to go this route, but I would recommend you go to a decent music store and listen to a pair or small/medium keyboard amps. A pair of smaller amps will give a more spacious presentation than a single larger amp and produce more realistic sonic weight. I assume your piano has a stereo out?  IMO, this will give a more satisfying result than monitors. 

Steinway D.

I recently bought a table with a build-in drawer for my digital piano.

The table is good and all, but sadly the sound of my digital piano sounds much worse...

https://tweakbox.mobi/ https://getappvalley.com/ https://vlc.onl
I'm looking for a solution, possibly some speakers that I can connect my piano to, possibly also my pc at the same time. Any suggestions?

I got this,..