Yes you can connect them. Balanced topology or not does not affect that in the least.
Here is a very simple rule that will serve you well throughout all your life, audio and otherwise: if the connectors fit, you can use them. Period.
Every single connector on every single thing made in every single country on Earth works this way. They are all designed in order to prevent damage, specifically risk of fire. Why everyone isn't told this, or hasn't figured it out, is one of the great mysteries of life.
Here is a very simple rule that will serve you well throughout all your life, audio and otherwise: if the connectors fit, you can use them. Period.
Every single connector on every single thing made in every single country on Earth works this way. They are all designed in order to prevent damage, specifically risk of fire. Why everyone isn't told this, or hasn't figured it out, is one of the great mysteries of life.