I had that problem, straight into the keys. I went mixer (not the QSC speakers, through the Yamaha mixer) and wow, so much more control.

Saying that, I'm going to try again with the 4X and see how the VH suits me this time.

Curious: doesn't the 1000 have a separate mic volume control? I know what you mean though. Turn up the mic on a song and the next song blows the mic up!

https://on-stage.com/products/view/11983
btw: here is a great attachment. I use one for my mic boom and one for my mixer (Yamaha mixer has an attachment) - one of the best inventions ever