Air Circulation or overheating question - AVS | Home Theater Discussions And Reviews
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Old 12-03-2012, 01:36 PM - Thread Starter
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I just bought a Pioneer Elite SC-05. I have a Glass Stand that my DLP TV sits on. I had my old receiver on the bottom on a glass shelf. The new receiver fits exactly to the top of the Glass but the side , back and front are completely open and they have the feet on the bottom to give some breathing room. There is nothing next to the unit. It is just the top that is blocked by the glass

Is this ok if the top is 1/4 inch from the glass? will this damage the receiver or will it be fine since the sides and back and front are open to breath
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Old 12-03-2012, 02:25 PM
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Pioneer like most AVR brands recommend a minimum of 3"-4" free-air clearance for the top and L/R sides...

Just my $0.02.... wink.gif
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Old 12-03-2012, 02:38 PM
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Quote:
Originally Posted by Joji View Post

I just bought a Pioneer Elite SC-05. I have a Glass Stand that my DLP TV sits on. I had my old receiver on the bottom on a glass shelf. The new receiver fits exactly to the top of the Glass but the side , back and front are completely open and they have the feet on the bottom to give some breathing room. There is nothing next to the unit. It is just the top that is blocked by the glass
Is this ok if the top is 1/4 inch from the glass? will this damage the receiver or will it be fine since the sides and back and front are open to breath

The Manual surely gives clear instructions, look'em up! smile.gif
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Old 12-03-2012, 03:05 PM
 
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Quote:
Originally Posted by Joji View Post

I just bought a Pioneer Elite SC-05. I have a Glass Stand that my DLP TV sits on. I had my old receiver on the bottom on a glass shelf. The new receiver fits exactly to the top of the Glass but the side , back and front are completely open and they have the feet on the bottom to give some breathing room. There is nothing next to the unit. It is just the top that is blocked by the glass

Is this ok if the top is 1/4 inch from the glass? will this damage the receiver or will it be fine since the sides and back and front are open to breath

I took a look at the service manual for this AVR and see that the primary air vents are on the bottom near the front and right side, on the left side panel and over the front of the top panel. There is a cooling fan that draws air from the left side and seems to exhaust warm air through the top. There appears to be negligible air flow though the front and back so leaving them open to the air does nothing for you. The right side seems to have some minimal venting. I would definitely not block the left side, bottom and top.

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Old 12-03-2012, 05:29 PM
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Really doesn't matter which brand or AVR model, a 5.1, 7.1, or 9.1 needs ventilation..
Due to the multiple on-board amplifiers, over-clocked video, audio and connectivity processors the package will run hot. In order to assure the best long-term reliability the package needs to have adequate free-air clearance......

This is becoming even more crucial as the brands tend to strip out any component overdesign due to the economic and marketplace cost pressures..


Just my $0.02... wink.gif
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Old 12-05-2012, 02:54 AM
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To ensure a longer lifespan of such a unit I would always suggest some sort of forced cooling on top for the processing electronics like HDMI, DSPs and video processor, even when free standing.
To keep cost and cabinet space down most manufacturers accept a shortened lifespan for consumer electronics nowadays, hoping, they will be exchanged anyway for an newer uptodate model after 2-3 years maybe.
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Old 12-05-2012, 02:58 AM
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Where would it be best to place a fan on a Denon 4311? I'll be using it as a pre-pro with no input to the amps. I've got a USB powered one I used with my Onkyo.
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Old 12-05-2012, 03:01 AM
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The simplest way is to look / feel for "hot spots" on top of cabinet as hot air rises to the top. After localizing such a hot spot on top of the cabinet use one of those large diameter, low rpm, low noise fans to suck the air out of the cabinet, because due to space constraints there is usually no room within the cabinet, at least looking at the "big boys".
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Old 12-05-2012, 03:11 AM
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I guess that's what I'll have to do.
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