My couch is 10 feet from the unit, and I can hear it even on low. Anyone have an opinion if the rear vented model would be quieter?

Hi Mike. I have my unit not much more than about 5 feet from me. My Denon AVR is set in a closed back unit. My flat is very warm even without any heating on. My flat temp is usually between 22 and 26 generally. I even leave the back door open all the time so that gives you an idea hot warm my flat gets with no heating on in entire flat other than bathroom radiator only so I can have a warm towel after a shower. I have the unit set as follows with the probe temp at 29. On "Auto" with fan at lowest setting. Fan start up is 30 and alarm is set at 36. With these settings I must admit I hardly ever hear the unit working. Occasionally I do but not loud that is is disturbing. Maybe setting yours the same will help. I hope my answer has been helpful. Message back if you need more help and I will do my best to answer. All the best JJ

What is the harmful temperature of a Denon 3800?

According to Denon the operational range is 41-95F. I assume that is the ambient room air, not sure how that translates to equipment measurements while running, but i wouldn’t be surprised if the unit made it over 100 or 110 without a fan. Set your cooling fan to 85.

If i install this product with my av equipment in a media rack inside a closed closet, do i need to exhaust the closet?

I would say yes. You need a source of cool air from somewhere. If you use this on your AV equipment in an enclosed space, the closet will heat up and your equipment will probably not be cooled adequately.

How do theze work in av racks? how much space is needed above the cooling fan?

The AIRCOM coolers are great for AV racks. The fan inlets on the T10 model are on the bottom and the outlets are on the front. So, no space is needed above the AIRCOM T10 for it to function as designed. In my case I have my Blu-ray player on top of the T10 and the T10 keeps both the AV receiver below the T10 and the Blu-ray player above the T10 cool (which is the whole purpose for the T10 in the first place).

ASIN	B078PQJSRY
Air Flow Capacity	160 Cubic Feet Per Minute
Brand	AC Infinity
Compatible Devices	AV components
Cooling Method	Air
Date First Available	December 29, 2017
Is Discontinued By Manufacturer	No
Item Weight	1 pounds
Item model number	AC-ACT10
Manufacturer	AC Infinity
Material	Alloy Steel
Maximum Rotational Speed	6700 RPM
Noise Level	24 Decibels
Power Connector Type	AC Power Plug
Product Dimensions	17"L x 13.5"W x 1.5"H
UPC	819137020313
Voltage	12 Volts
Wattage	9.5 watts

AC Infinity AIRCOM T10, Quiet Cooling Blower Fan System 17" Front-Exhaust, for Receivers, Amps, DVR, AV Cabinet Components, Compatible with Digital Video Recorder

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