Answer number one; “ Get a bigger rig”. A trifle obvious, but it really is the only way. If you can’t though, don’t give up, there’s more. You can at least find out how to get the very best out of what you have got. Without blowing it up. Hopefully.
Answer number two; “Use your high pass filter”. Counterintuitive? Almost certainly, until you listen to Jon’s very sensible advice. Encourage the speaker to do what it does best, or not to try to do what it can’t.