i have a denon avr s940h reciever in an enclosed cabinet with 4 inches from top of reciever to top of cabinet. Will the s9 or t9 work?

4" from the top of your receiver means only 2.5" from the top of the AIRCOM S9. This may be too little clearance for a top-exhaust unit. You say "enclosed cabinet." I assume one side is open. The hot air needs to vent somewhere. If this is true then go with a front or rear exhaust system instead. The AIRCOM S10 is the front-exhaust version and S8 is rear-exhaust. Also, I like the S-Series because it offers all the control over the fans that I require. The T-Series costs more and seems a little overkill. Unless, however, you really like the LCD display.

Will this work in automobile applications

It works off of 120. You should call the company and ask them if they have fans for automotive applications.

does anyone use these fans in a stack? in between 2 components (amp, fan unit, avr for example)?

As long as you have proper clearance I don't see why it wouldn't cool ok. I think it pulls air upwards better than pushing air but I have used it to push air up thru an amp.

Have a receiver in a cabinet with 3.5" space behind it to back of cabinet or about 5" above it to a glass shelf. Top or rear exhaust unit is better ?

This unit exhausts from the top and I have about 1 inch above the unit. It works perfectly. I’ve had no problems with the receiver overheating, since I purchased the fan. If you have 5” above, it should work very well for you.

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AC Infinity Aircom S9 Quiet Cooling Fan System 17in Top-Exhaust for Receivers, Amps, DVR, AV Cabinet

Product ID: 258548116

Details

Brand
AC Infinity
Power connector type
SATA/Molex or
Product dimensions
43.2L x 34.3W
Voltage
12 Volts
Wattage
35 watts

🔇21 dBA ultra-quiet

⚙️3 dual-ball bearing fans

🌬️210 CFM airflow

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Description

❄️ Keep your gear cool, quiet, and ahead of the curve.

VERSATILE MOUNTING - Dual-ball bearing fans allow horizontal or vertical placement—customize your cooling without compromise.
SMART THERMAL CONTROL - Auto temperature-triggered fan speeds keep your devices perfectly cool without wasting energy or adding noise.
WHISPER QUIET COOLING - Operate your AV gear in near silence with just 21 dBA noise—because your focus deserves zero distractions.
ROBUST COMPACT DESIGN - Sleek 17-inch low-profile aluminum build supports up to 30 lbs, fitting seamlessly into tight AV setups.
EXTENDED DEVICE LIFESPAN - Prevent overheating and performance dips, ensuring your expensive AV components stay reliable and long-lasting.

The AC Infinity Aircom S9 is a premium 17-inch top-exhaust cooling fan system designed for AV receivers, gaming consoles, and other sensitive electronics. Featuring three dual-ball bearing fans with PWM motors, it delivers a powerful 210 CFM airflow at an ultra-quiet 21 dBA noise level. Intelligent thermal triggers and four speed settings optimize cooling efficiency while minimizing noise. Its durable aluminum and steel construction supports up to 30 pounds and fits tight spaces, making it an essential upgrade for professionals seeking to extend device lifespan and maintain peak performance.

Specifications

ASIN	B01LVUWOBX
Air Flow Capacity	210 Cubic Feet Per Minute
Best Sellers Rank	#102,896 in Computers ( See Top 100 in Computers ) #890 in Computer Case Fans
Brand	AC Infinity
Brand Name	AC Infinity
Compatible Devices	Gaming Console
Cooling Method	Air
Cooling method	Air
Customer Reviews	4.8 out of 5 stars 568 Reviews
Item Dimensions L x W x H	43.2L x 34.3W x 3.8H centimeters
Manufacturer	AC Infinity
Material Type	Aluminum
Maximum Rotational Speed	2200 RPM
Model	AI-ACS9
Noise Level	21 Decibels
Number of Items	3
Number of Packs	1
Part Number	AI-ACS9
Power Connector Type	SATA/Molex or 3-pin/4-pin
Power connector type	SATA/Molex or 3-pin/4-pin
Product dimensions	43.2L x 34.3W x 3.8H centimeters
UPC	854759004655
Unit Count	1.0 Count
Voltage	12 Volts
Wattage	35 watts

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₩486424

Duties & taxes included

In stock

Sold byAmazon South KoreaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Korea.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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