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Post by Priapulus on Jul 21, 2024 9:00:33 GMT -5
I have my processor and amplifiers all in a stack, sitting on a small wheeled platform. There is a 7/8" gap, provided by their feet, between each cabinet. Heat rises and it is noticeably warm at the top of the stack, even though I don't play it loudly. The room becomes warmer after an hour! How can I (noiselessly) cool it? * * * * * * * * * * * * My solution was to buy four "silent" 12v computer fans and install them in the wheeled base of my amplifier stack. I also bought an adjustable 12v power supply. There is a wood frame, and soft 1/4" neoprene gasket between the bottom amplifier and the base. No gasketing between the other equipment, just the usual 7/8" gap provided by the equipment feet. One fan would probably have been enough, but four allows me to run them slower (8v was good) for noise reduction. Also, should the fans stop for some reason, there should be enough convection thru four dead fans to keep the amplifier from burning up. The bottom amplifier used to run the hottest, but the heat also rose up, adding to the temperature of others. (Heat measured by placing hand on the metal cabinet). Fans off: the cabinets were noticeably warm, but not hot. Fans on (8v), were inaudible, and the lower two amplifiers felt cold (as if turned off). The next-to-the-top amplifier felt slightly warm, but the Processor on top felt it's usual rather warm. I haven't come up with a solution, that isn't ugly, to cool the processor. But it probably isn't necessary. I'm adding an AC relay to switch on the fans, by the Processor triggers. Fans: www.amazon.ca/dp/B00KF7NGUEPower supply: www.amazon.ca/dp/B083GG2H6R?th=1    |
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Post by 405x5 on Jul 21, 2024 9:48:04 GMT -5
The problem is, your stack has no gap between the components. They’re just stacked one on top of the other. A rack solution that would give you about an inch and a half between the individual components would make all the difference in the world. you would need no fans…… nothing but space, even such a rack (were it metal) would have the heat dissipated by the metal itself and the space……much more elegant solution and there’s nothing better than no fans at all. example or similar……  |
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klinemj
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Official Emofest Scribe
Posts: 15,089
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Post by klinemj on Jul 21, 2024 12:53:29 GMT -5
I like your solution. I would have been tempted to add the fans in the back to have them blow through horizontally instead of vertically.
Mark
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Post by AudioHTIT on Jul 21, 2024 14:51:34 GMT -5
Running Hot … wasn’t that called Baywatch?  |
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Post by Priapulus on Jul 21, 2024 20:08:20 GMT -5
I just realized something. The lowest amplifier, next to the new fans, is a two channel "Main" amp. The second amplifier is a five channel amplifier for the surround channels. The third amplifier is an eight channel amplifier for all the extra Atmos channels. I should shut off the Atmos amplifier, unless I'm watching an Atmos movie, because it is doing nothing. That would reduce the heat load, and stop wasting electricity!
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Post by geebo on Jul 21, 2024 20:29:10 GMT -5
I just realized something. The lowest amplifier, next to the new fans, is a two channel "Main" amp. The second amplifier is a five channel amplifier for the surround channels. The third amplifier is an eight channel amplifier for all the extra Atmos channels. I should shut off the Atmos amplifier, unless I'm watching an Atmos movie, because it is doing nothing. That would reduce the heat load, and stop wasting electricity! Just set up a trigger to turn on the BasX when something is playing content that uses Height channels. |
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Post by Priapulus on Jul 21, 2024 20:59:46 GMT -5
I just realized something. The lowest amplifier, next to the new fans, is a two channel "Main" amp. The second amplifier is a five channel amplifier for the surround channels. The third amplifier is an eight channel amplifier for all the extra Atmos channels. I should shut off the Atmos amplifier, unless I'm watching an Atmos movie, because it is doing nothing. That would reduce the heat load, and stop wasting electricity! Just set up a trigger to turn on the BasX when something is playing content that uses Height channels. How do I do that? I found /setup/triggers/trigger 1/on-off. But couldn't find conditional choices. XMC-2. I'm going to use the XPA-2 trigger-out to relay the fans On. /b |
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Post by geebo on Jul 21, 2024 21:34:05 GMT -5
Just set up a trigger to turn on the BasX when something is playing content that uses Height channels. How do I do that? I found /setup/triggers/trigger 1/on-off. But couldn't find conditional choices. XMC-2. I'm going to use the XPA-2 trigger-out to relay the fans On. /b In Trigger setup you will have four categories to set for each trigger. To get Trigger X to do what I suggested go into Setup > Triggers > Trigger X then under Power check the box for Main, under headphones check Override, under Input you can check all of them and under Speakers check the box for Heights. Then just connect a trigger cable from the processor Trigger X Out to the amp's trigger input. Now whenever you play something with content in the height speakers like Atmos, the trigger will turn on the amp and also turn it off when you stop playing content using height speakers. |
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Post by Priapulus on Jul 21, 2024 22:13:35 GMT -5
How do I do that? I found /setup/triggers/trigger 1/on-off. But couldn't find conditional choices. XMC-2. I'm going to use the XPA-2 trigger-out to relay the fans On. /b In Trigger setup you will have four categories to set for each trigger. To get Trigger X to do what I suggested go into Setup > Triggers > Trigger X then under Power check the box for Main, under headphones check Override, under Input you can check all of them and under Speakers check the box for Heights. Then just connect a trigger cable from the processor Trigger X Out to the amp's trigger input. Now whenever you play something with content in the height speakers like Atmos, the trigger will turn on the amp and also turn it off when you stop playing content using height speakers. Thank you; I think I was able to set it correctly. However it doesn't seem to work as we hoped. If I select the video format via MODE on the remote, it switches the Heights Amplifier correctly. But I leave MODE on Auto (my normal use), the Processor correctly sets itself to Atmos, but doesn't follow thru and trigger the Heights amp. The Heights Amp always stays on. if I set MODE to Surround, Heights come on, but goes off for MODE Stereo, Direct, etc... /b |
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Post by geebo on Jul 21, 2024 22:17:25 GMT -5
In Trigger setup you will have four categories to set for each trigger. To get Trigger X to do what I suggested go into Setup > Triggers > Trigger X then under Power check the box for Main, under headphones check Override, under Input you can check all of them and under Speakers check the box for Heights. Then just connect a trigger cable from the processor Trigger X Out to the amp's trigger input. Now whenever you play something with content in the height speakers like Atmos, the trigger will turn on the amp and also turn it off when you stop playing content using height speakers. Thank you; I think I was able to set it correctly. However it doesn't seem to work as we hoped. If I select the video format via MODE on the remote, it switches the Heights Amplifier correctly. But I leave MODE on Auto (my normal use), the Processor correctly sets itself to Atmos, but doesn't follow thru and trigger the Heights amp. The Heights Amp always stays on. /b If Mode is set to Auto the processor will usually upmix to include height channels. Are you saying that when set to Auto the height amp doesn't trigger on or it stays on all the time? |
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Post by Priapulus on Jul 21, 2024 23:11:34 GMT -5
Thank you; I think I was able to set it correctly. However it doesn't seem to work as we hoped. If I select the video format via MODE on the remote, it switches the Heights Amplifier correctly. But I leave MODE on Auto (my normal use), the Processor correctly sets itself to Atmos, but doesn't follow thru and trigger the Heights amp. The Heights Amp always stays on. /b If Mode is set to Auto the processor will usually upmix to include height channels. Are you saying that when set to Auto the height amp doesn't trigger on or it stays on all the time? In Auto, height amp stays on all the time. I guess if it's upmixing, that is what it's suppose to do. I like Auto, because I'm lazy, never sure which Mode to use, and figure the Processor know best... Which Mode should I use? It sounds like I should just use Auto, and switch the Heights amp manually. When I have an Atmos program I can switch the amp on. /b |
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Post by geebo on Jul 21, 2024 23:55:53 GMT -5
If Mode is set to Auto the processor will usually upmix to include height channels. Are you saying that when set to Auto the height amp doesn't trigger on or it stays on all the time? In Auto, height amp stays on all the time. I guess if it's upmixing, that is what it's suppose to do. I like Auto, because I'm lazy, never sure which Mode to use, and figure the Processor know best... Which Mode should I use? It sounds like I should just use Auto, and switch the Heights amp manually. When I have an Atmos program I can switch the amp on. /b You could certainly do that or just change to Auto when you want to play the height channels. Another idea would be to set up one speaker preset to have heights included and the other to not have height speakers. Then you could leave the Mode on Auto and just change to the preset with the configuration you want to use. Choose the preset with heights to play Atmos and choose the preset without heights when you don't need or want the BasX. |
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Post by millst on Jul 22, 2024 0:07:47 GMT -5
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Post by geebo on Jul 22, 2024 0:51:17 GMT -5
. He bought Noctua fans and I've had three of their 120mm fans running horizontally at the top of my rack for several years. Still as quiet as they were when new. I just vacuum the dust off occasionally. AC Infinity makes nice cooling gear and I also have their Cloudplate T7-N mounted on the front of my rack. Great stuff. |
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Post by millst on Jul 22, 2024 1:19:51 GMT -5
Oh, yeah, they'll be fine...I have some of their products, too. Typically, fans with the cheaper sleeve bearings are problematic. The cost for four of those fans plus the power supply and you're probably approaching AIRCOM territory  |
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Post by 405x5 on Jul 23, 2024 9:00:45 GMT -5
That’s “Babewatch”. I would like to pull the plug on anything that cools that off |
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Post by Priapulus on Jul 31, 2024 18:59:00 GMT -5
More Progress: I bought an AC Infinity MULTIFAN S2, Quiet 120mm USB Blower Fan with Speed Control, to cool the processor. It just sits on top of the processor and sucks the warm air out the vents. It is powered via a 5V USB plug, is silent, and works very well. www.amazon.ca/dp/B012CL2V3IThis photo is the solid-state relay I made to switch power supply for the 12v fans. It also switches a 5v USB wall wart, which powers the Multifan. I didn't power it from the Processor USB, because the Processor USB remains live after I turn the Processor off. The relay is controlled by the processor trigger-out, and there a a LED "ON" indicator (blue, of course).  |
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