Fans for amp

[caraudioguy2100]

Are either one of these fans any good to use in a large 8 k amp ?

Or what would you recommend

 

[vacuphile]

I am a big fan of amps

 

[Perry Babin]

What was in it originally?

 

[caraudioguy2100]

It was missing when I bought the amp

 

[Perry Babin]

Without knowing more about the amp...

Higher RPMs (generally needed for higher CFM) is going to be noisier. Some owners may object.

Thicker fans are more efficient (lower RPMs for equal CFM)

Ball bearings are generally longer life than sleeve bearings.

I don't know how CUI's magnetic bearing system compares to Sunon. Sunon has always been reliable for me (never had one fail).