Tom,
I have never used a Trend so I don't known what they are like but I had a Kress 800w on my router up until last week. The thumbwheel on the Kress is marked 1 to 6 1 being about 10,000 and 6 being 30 odd thou.

If you keep to just over 2, probably about 12,000 or so they are quiet, enough so you can work at the side of them.
Flat out you have to walk away.

I try to run at 2 or thereabouts and it works for me.

Just got a new air cooled Chinese spindle, 24,000 rpm max.
at 12,000 it's quieter than the Kress but at 24,000 that still chucks a bit of noise out but nowhere near as much.
The noise isn't a motor noise but fan noise, I'd like to get hold of one of the small water cooled spindles and se how they perform with no fan.


John S.