Potential problems when connecting an unbalanced sound card output to a balanced monitor input?

Question

Audio

An external Creative Sound Blaster Omni Surround 5.1 sound card is available , it has a pair of tulips for the front speakers.
I decided to buy a couple of M-Audio BX5 D2 , but there are only balanced inputs.
Judging by what I found on the network, it is possible to short the minus to ground and thus connect the unbalanced output to the balanced one (others advise not to connect the minus anywhere at all).
In this case, obviously, the power of the input signal will be half as much.
As I understand it, as a result, the sound will be quieter, but will not the load on the sound system be excessive, how exactly is it more correct to connect - with a minus closed to zero, or not connected anywhere at all?
There is no desire to buy a separate DIBox, the cable length is small.
This is the first time I've encountered something like this, if I'm confusing something, correct me.

Answer 1

As a result, it turned out that the TRS in the mentioned monitor can work both with a balanced connection and with an unbalanced one. I bought unbalanced cables, it turned out that the minus is closed to the ground, it works fine.

Answer 2

"Analog outputs 1x Jack3.5 (stereo) headphone output, 2x RCA Line-out (Front), 2x MiniJack (stereo) Line-out (Rear and Center/Subwoofer)"
2x RCA Line-out (Front) These are line outputs , rather than powerful speaker outputs. Amplifiers in speakers.
Why would you? I haven't checked, but I have no doubt that by connecting "-" to the ground everything will be fine. If the "-" wire is left hanging, there may be no sound at all.
These are low power line outputs. You can short them to ground and nothing will happen.