Sanyo Denki San Ace 109R1212H1011

Special thanks to Vapor for sponsoring this fan

NOISE LEVEL
Very good, and exceptional at high speeds. From a pure noise level meter numbers standpoint darn right impressive for the range it is covering. This fan also did a bit better than the 9G version by a small amount. It also has a high CFM level.

NOISE QUALITY
I'm going to say poor from 4-6V, average from 7-8V, and good from 9V and higher. Lower volts have that typical 38mm fan tick, but by the time you reach 2000+RPM levels that motor noise pretty well washes away in the air noise.

OVERALL
A very strong noise level fan of industrial quality. Noise quality is a bit poor from 4-6V (motor tick), average around 7-8V, and good 9V and above. I'll give the fan a thumbs up for having the lowest noise level from about 40 to 61CFM of the fans tested so far....

VIDEO LINK
http://www.youtube.com/watch?v=4AdL3NcP4AE