The short answer: It doesn't matter.
In more detail: About 2 years ago, I bought the Logitech Z333 and connected it to our multimedia PC in the living room. But now, unfortunately, we have an open kitchen and it is enough that the dishwasher is running or even food is being fried and you can no longer clearly understand a spoken word through these speakers.
So I got rid of the Logitech Z333 speakers and bought the Q Acoustics 3020 bookshelf speakers, which are worlds better, and an amplifier board to go with them.