How much ventilation does a receiver need

Fans cannot magically move the air by running. Fans fight against the obstacles of their environment, like backpressure caused by static electricity. When reviewing fans, aim for marginal airflow. For example, if the airflow requirement for zero back pressure is 50 CFM , your fan should be able to reach CFM when operating against backpressure. All fans differ. They differ by the type of input, axial or rotational airflow, and functionality, among other things.

Axial fans centrifugal fans included in the linked article were the first electronic fan design, introduced in the s. They work similarly to windmills, drawing air parallel to the axis and pushing it out in the same direction.

Axial fans produce larger volumes of airflow at low pressure. These fans work well for general applications and are great for closed-in spaces, like computers. Axial fans can also accommodate large areas. Unlike axial fans, centrifugal fans push air perpendicularly to the axis through a series of ducts and tubes. While the airflow they generate is not as high, they can withstand higher pressure, giving them a steadier flow. Air conditioning and drying units more often use centrifugal fans.

A cross-flow fan is a tubular fan that provides a broad, narrow airflow that blows across the impeller. However, these fans provide durable and practical options. Electronic cooling fans come in a variety of sizes. But larger sized fans will not create more airflow. Some common dimensions include 40x40x10, 80x80x25, and xx Standard sizes include 40 mm 1. Bearings are the foundation of the cooling fan and determine its stability and durability. These foundations are a fair indicator of the lifespan of the cooling fan.

The three main types of bearings are as follows:. Sleeve bearings resemble a hollow sleeve. They run quieter than their ball bearing counterparts but deteriorate more quickly.

They can even become louder with wear and tear. If you get a fan with a sleeve bearing, you must always install the bearing vertically or risk failure. If the manufacturer does not state the bearing, it is most likely sleeve bearing. Rifle variation bearing is a type of sleeve bearing that lubricates the sleeve with fluid stored in a reservoir. However, this variation allows one to mount the sleeve horizontally, a significant boon.

These foundations are of high quality in the electronic fan world. Most designs feature two rows of bearing or dual-bearing. However, smaller fans may only fit one row of bearing. A ball bearing is the most familiar footing for electronic cooling fans. Their high usage makes sense since ball bearings can be mounted in any direction and are quieter at higher speeds than sleeve bearings. These bearings go by many names: hydrodynamic, hydrostatic, vapo, and SSO bearings, to list a few.

These bearings disperse fluids around the sleeve to prevent damage. There are several benefits to these bearings—they run the quietest and have a long lifespan. However, they are also the most expensive. As mentioned before, how you store your AV receiver is vital to its health. These choices are the most robust conveyor of passive ventilation. We have encountered a problem. Sorry, the call-back feature is currently unavailable.

Home theater receiver placement tips What you need to know before you set up your receiver. Meet David Brown Close. A house without music is not a home. I'm a music nut who's constantly on the lookout for new artists to listen to, and new gear on which to listen.

I love old-school receivers, amps, and speakers, but I'm also into newer tech like wireless. When I'm not writing articles for the Crutchfield website, I'm developing and editing content for the Crutchfield catalog, playing guitar, watching baseball, coaching soccer, or diving deep into the recesses of my music collection.

Specialties include home speakers, amplifiers and receivers, headphones, and wireless audio. Masters in Journalism from American University. Cabinets and TV stands Most people choose to place their receiver in a cabinet or stand. How much space do you need in your cabinet or stand? AV cabinets with removable back panels offer easy access for connections.

Comments 15 Read comments. Any fan is going to give off some amount of noise. But it's better than overheating your receiver, for sure.

We carry these small cooling fans , that might work well for you. There are also USB-powered options out there. Good luck! Cole, I've never seen that spec provided by a manufacturer. If you have concerns that your receiver may be running too hot, I highly recommend you call our Tech Support folks. They're super knowledgeable and can help you determine if you've got a problem.

Robert, excellent point! These cables work by converting electrical HDMI data into optical signals, which are converted back to an electrical HDMI data stream at the connection to your projector. Since the cable is fiber optic, there's no signal loss, even over long runs.

Jeffrey, I'd say that's a bad idea. If the back of the receiver is going to be flush against the bottom of your cabinet, that's going to put tremendous strain on the connectors, not to mention the cables that are connected. I definitely would not recommend it. Looking for home theater receivers? Shop our selection. Related products.

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Audition speakers before you buy. Virtual Audio technology allows you to compare sonic characteristics between speakers so you can make a more informed shopping decision. SpeakerCompare simulates the sound of home and car speakers through your headphones. It lets you compare sonic characteristics between speakers so that you can make a more informed shopping decision.

Learn how SpeakerCompare works. Select your headphone brand Brand. In the manual of a couple of other receivers I've looked up, nothing was specified unless I missed it. GoMrPickles said:. For added protection, you may also incorporate the use of an external cooling fan to exhaust heat away from the top of the unit. My AVA runs warm and I plan on giving it more breathing room in the future, but haven't done so yet.

It seems like most home theater furniture is NOT designed with 5" of ventilation space in mind; one can fit a shelf and a device in that space. In similar situations I've used a small fan like in a PC. Hung out from the shelf above. This blew the air horizontally out the rear of the shelf. While likely not fully sufficient it reduces temps usefully and was quiet enough. I adapted whatever junk wall wart was the right voltage for power. Definitely not enough for most AVRs. But if you get one with class D amplifier, you should be OK.

I like that it only runs when it needs to and I never have to think about turning it on or off. I have barely more than an inch above my Yamaha rx-z7, a very hot running class AB. I have plenty of space to the sides. I put a thin laptop cooler in that gap, powered by the AVR's outlet so it comes in with it. Forum Donor. I'm just not as cool as amirm! I would feel in there after a session and if it seems uncomfortably hot then stick in one of the numerous little coolers or at least a fan or to to get some airflow.

They make a lot of nice slimline coolers but 1" excuse, 2 cm, 0. March Audio Master Contributor Manufacturer. I think we might have to cut a bigger whole in the back of the cabinet we have the receiver in. Name required. Email will not be published required. Notify me of follow-up comments by email. Notify me of new posts by email.

See the full list of brands here that we sell at Stereo Barn. By Nick Bock. What is a Receiver. Joshua Eirman September 23, at PM.

Thank you, Josh Please Respond! Janet Hatcher October 9, at AM. Our suggestion would be to swap them out every other day. Sam Li February 7, at PM. Lexusbola February 20, at PM. John Mi March 29, at AM. There is no way a cable box uses more electricity than a refrigerator Reply. Nick Bock April 1, at PM.

John, thank you for your comment. Nick Bock April 18, at AM. I hope this helps! Bill February 23, at AM.