I have just ordered an XL and was also thinking already of a spindle upgrade.
If you go to the above “Luke” link and run the video at the bottom you can hear the horrible screeching sound of the spindle. It may be quieter in decibels vs a router but the tonal quality is really hard to listen to…
My question for anyone with a water cooled spindle is how does yours sound compared to Luke’s?
Recommendations for a quiet spindle?
Also, do they all have to run thru a VFD or can some use just a DC power supply?
I have read the wiki but didn’t come to any conclusions.