Question 1

can you hear the fan, how quiet is it?

Accepted Answer

Yes you can hear it at every speed, even on the lowest speed.  I have the two-fan 6-inch version (total 12"x6" grille. I'm a LITTLE disappointed but not enough to prevent me from purchasing another of the same for the Receiver area of my AV cabinet. Do NOT expect these fans to be silent.

Question 2

How can I control when this turns on and off without having to upgrade to the model with a thermostat? If I plug it into my Yamaha receiver usb output

Accepted Answer

It has a toggle switch. Manual, but not terrible. If it's plugged into something that you turn on and off, it'll run when that component is turned on.

Question 3

Is it better to Mount where the Fan pulls out the Heat from the Cabinet or better to blow Air into Cabinet?

Accepted Answer

It's better to mount where it will pull the heat OUT, thereby bringing in cooler air unimpeded by other airflow inside the cabinet.  If you blow air into the cabinet, it may not be able to exit as quickly and you would get air blowing back around the inside of the cabinet and impeding airflow into the cabinet.  Think of it his way, if you blow into a paper cup with a fairly small hole in it, you can only "blow" so much air in and the rest comes back out at you. to avoid this potential problem, you will get the maximum airflow through the cabinet by pulling in air that is exhausted out by the fan.

Question 4

What is the size of the hole that has to be cut in the cabinet?

Accepted Answer

The fan comes with a clear plastic template to guide you. Just tape it to the cabinet wall you are mounting the fan onto. The hole is about 5 inches square. The face/lip of the fan is about 5 3/4 inches square. You also must drill 4 holes for the mounting screws - also made easy using the template. For me, it took 10 minutes to hand-saw through the thin, paneling-like board backing of my entertainment cabinet. 10 minutes to mount the fan with 4 screws. It took 2 minutes to plug it into an unused USB port on my amplifier for fan power. Now, my whole 7 component system stays cool. After watching a movie, it took 15 minutes to clean up my mess.

ASIN	B009COQYA0
Air Flow Capacity	52 Cubic Feet Per Minute
Best Sellers Rank	#20,326 in Computers ( See Top 100 in Computers ) #117 in Computer Case Fans
Brand	AC Infinity
Brand Name	AC Infinity
Compatible Devices	Desktop
Cooling Method	forced air
Cooling method	forced air
Customer Reviews	4.6 out of 5 stars 1,490 Reviews
Global Trade Identification Number	00854759004006
Item Dimensions L x W x H	16L x 3.3W x 16H centimeters
Item Weight	1 Pounds
Manufacturer	AC Infinity
Material Type	Aluminum
Maximum Rotational Speed	1300 RPM
Model	AI-CFS120BA
Noise Level	18 Decibels
Number of Items	1
Number of Packs	1
Part Number	ACAICFS120BA
Power Connector Type	3-Pin
Power connector type	3-Pin
Product dimensions	16L x 3.3W x 16H centimeters
Set Name	Speed Controller
UPC	854759004006
Unit Count	1.0 Count
Voltage	240 Volts
Wattage	1.6 watts

AC Infinity Quiet Cooling Fan System with Speed Control, for Home Theater AV Cabinets (6)

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