Subwoofer Connection To A Pphp 1249 Kt System

https://virtuosocentral.com/how-to-hook-up-a-subwoofer-to-a-pa-system/

Yes, it could be done and above link is very useful to understand.

I have listed two menthods and there are multiple methods to this work:

How do I connect my subwoofer to my PA speakers?

Adding a subwoofer to powered speakers by using the sub's active crossover is very easy. All you have to do is connect the signal cable coming from the audio mixer to the subwoofer's input channel. Then from the output loop, connect a cable to the full range speaker. Select the cutoff frequency you want, and that's it.

Method 1 - Using a Crossover or PA Management System

If you're looking for an easy way to hook up a subwoofer to a PA system, this is the first method I'd go with, especially if setting up passive subwoofers. In fact, it's the system that most rely on. It's easy to set up, and it's reliable. The idea is to feed the signal through, then break it into different frequencies, while sending them to the appropriate places.

With crossovers, you'll have one of two options. Use the active one that most likely came with the powered subwoofer or opt for an outboard if you'd prefer more control. Crossovers come in differing variations, depending on how complex you want to get with 2, 3, and 4 ways systems.

So, basically, you're going to feed your full frequency signal into your crossover, and this then sends the different frequency signals to each speaker and your low frequencies to your subwoofer.

Diagram for Adding a Subwoofer Using an External Crossover

The following image is a diagram showing the signal flow and connections your need to make to add a subwoofer to your PA system using the external crossover method.

Method 2 - Leveraging the Active Crossover that comes In a Powered Subwoofer

If you are using active speakers and subwoofers for your PA system set up, using the active crossover included would be the best way to add a sub to your live sound. This is not going to cost extra because the crossover is included inside the subwoofer.

Most active subwoofers come with an internal active crossover that you can use for your advantage. It allows you to connect the full range signal coming from the main outputs of the mixing console, and internally, it separates the frequencies that go to the sub's power amplifier and the loop signal that goes to the tops.

Just to clarify, "tops" refers to the full-range powered speakers that usually go on top of the subwoofer's cabinet.

Adding a subwoofer to powered speakers by using the sub's active crossover is very easy. All you have to do is connect the signal cable coming from the audio mixer to the subwoofer's input channel. Then from the output loop, connect a cable to the full range speaker. Select the cutoff frequency you want, and that's it.