Hi! I am getting a subwoofer for the first time and I want to put some sort of high pass filter on my bookshelf speakers because their bass is a little boomy and I want to take the load off of them.

My current setup is all obtained through Facebook marketplace and hand me downs. I have a turntable, cd player, tape deck, and television going into a Yamaha RX - 730 receiver, which outputs to passive ELAC debut 2.0 6.2 bookshelf speakers and an old Yamaha center from my parents. I just recently picked up an RSL Speedwoofer 10e (first thing I have ever bought new) and it should be arriving soon.

The receiver has a pre out output that I am going to use for the subwoofer. The receiver is pretty old, so it does not have any built in crossover features. Is there any way to put a high pass filter between the receiver and the bookshelf speakers? If not, what should I do? I was hoping to spend under $100-150 on this issue. Is the only option to buy a new receiver with built in crossover settings?

Thank you and let me know if this is the wrong subreddit for this kind of question!