Critique on success of this subwoofer cutoff project?

hi guys,

i was building a subwoofer cutoff circuit, going through the internet, i found this.

Circuit adjustable bass filter from 50 Hz to 150 Hz – Ne5532 Bass Filter with volume control | Xtronic Free Electronic Circuits and Informations

Given my 0 knowledge in Audio circuits,Can someone tell me if this project will work ? because as i can see, it lacks the proper documentation and instead in the comments somewhere, i hear "LOTS OF NOISE".

Thanks a ton :)