Do you think this 2.1 setting is going to work?

Hi, all

I just got a active subwoofer. So I want to try a system below.
Do you think this is going to work just fine?
Or do I miss something?
I am a newbie, so please teach me.
Thank you in advance.

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Thank you for your reply.

Do you mean I should increase the resistors' value? maybe 10kohm?
I am sorry if I misunderstand your comment.
First off...... I, and any other reader here, have no idea what type of units are involved, or the circuitry (schematics) used in them, and so it's pretty impossible to diagnose and understand any issues.
Speculating, guessing, is not a good proper way to go about something in electronics.
 
Your setup makes the sub output added to the main speakers, which is possible but the adjustment maybe tricky.
For a conventional 2.1 system what is missing is the high pass filter in front of your stereo amp.
Many subwoofers have "line level" inputs and high pass outputs to perform this function.
 
First off...... I, and any other reader here, have no idea what type of units are involved, or the circuitry (schematics) used in them, and so it's pretty impossible to diagnose and understand any issues.
Speculating, guessing, is not a good proper way to go about something in electronics.
I understand. Maybe I should find another way. Thank you for your reply
 
Your setup makes the sub output added to the main speakers, which is possible but the adjustment maybe tricky.
For a conventional 2.1 system what is missing is the high pass filter in front of your stereo amp.
Many subwoofers have "line level" inputs and high pass outputs to perform this function.
I see. I should find another way, then. Thank you for your comment.