Thanks for creating such a great video. The sound levels are evident and there is also a noticeable tone (pitch) difference. I appreciate the feedback from the experts about this subject. I think I will pick up a set of each to play with and experiment to see what I like. It’s great to have this knowledge shared from around the world!
I enjoyed doing this, had wanted to take the time for maybe a year or more.
Did it on quite a windy day, but the tree shelter did help.
I put the DB info in the YT description, copy / pasted for info directly below . . .
Data on Db levels, taken by iPhone decibel meter app from Devnex.
Distance from M1P 3 feet (approx 91cm), 30 seconds of avg Db reading.
It was quite a windy day, hovering low in scrub was reasonably still for test.
Average ambient Db reading was 50Db.
M1P OEM 8330 props Avg Db reading 72Db Motor RPMs 538
MPP OEM 8331 props Avg Db reading 70Db Motor RPMs 490
MAS Stealth props Avg Db reading 68Db Motor RPMs 465