Author Topic: Receiver in Cabinet temps  (Read 1235 times)

Offline Djinn

Receiver in Cabinet temps
« on: November 08, 2019, 07:58:32 PM »
Hi all, recently bought a new tv cabinet with space for the receiver/centre speaker/console under the tv. After installing everything today, I realised the space is smaller than originally anticipated so I'm a bit concerned about heat in the receiver. I touched the top with testing today while playing music at fairly high volume (2 floor standers, set to small - so the 2 active subs are taking some load off the amp) and it was hot enough not to be able to keep my hand on the amp. It didn't however feel like too much heat is getting trapped in the cabinet though however not as good as on top of a table for example.

Any ideas? Would a Denon AVR have heat protection that would give me an indication if it is overheating?

Offline Tzs503gp

  • Trade Count: (+7)
  • AVForums Veteran
  • ***
  • Posts: 899
  • Total likes: 149
  • HiFi- trust your ears- eyes lie
Re: Receiver in Cabinet temps
« Reply #1 on: November 08, 2019, 08:59:24 PM »
Iím certain it would have overheat protection. If that protection is triggered often, youíll need to make a plan. If not, donít sweat it.
ScanSpeak 👍🏻
Furutech 👍🏻

Online fredeb

Re: Receiver in Cabinet temps
« Reply #2 on: November 08, 2019, 09:05:16 PM »
Is there a back on the cabinet ? You could possibly remove that . If there is enough space to raise the amp slightly so that air can move in from beneath , that could also help . 

Sent from my SM-G935F using Tapatalk

...evolution is the gradual development and stratification of progressive series of wholes, stretching from the inorganic beginnings to the highest level of spiritual creation.
Jan Smuts

Offline JANNAS

Re: Receiver in Cabinet temps
« Reply #3 on: November 08, 2019, 09:25:19 PM »
 Heat is the killer of electronic components, not only electrolytic caps but semiconductors too.  ;)

Offline Family_Dog

Re: Receiver in Cabinet temps
« Reply #4 on: November 08, 2019, 09:45:38 PM »
^^ Oh, most definitely! Make a plan with some sort of ventilation, even a small fan running at half-voltage should make a difference and will not be noisy.


-F_D



-Eric

That Guy in South Africa...
*************************************
http://groups.yahoo.com/group/vintage_tube/
*************************************

Offline dieOrg

Re: Receiver in Cabinet temps
« Reply #5 on: November 09, 2019, 08:00:27 AM »
What is your clearance above the denon?

I see Denon recommends 127mm.
https://denon.custhelp.com/app/answers/detail/a_id/354/~/amplifier-ventilation-recommendation

I sit with a simlar issue with heat and a confined space. I have just over 60mm clearance and it seems my Denon is ok so far.

Ive been looking into something like this to help with heat.  You have 3 optoins of top, rear or front venting.
https://www.acinfinity.com/component-cooling/component-fan-systems/aircom-t8-receiver-and-av-component-cooling-blower-system-rear-exhaust-17/

Anybody got experience with above acinfinity products?


Sent from my SM-A530F using Tapatalk


Offline stereosane

Re: Receiver in Cabinet temps
« Reply #6 on: November 09, 2019, 08:25:22 AM »
I'm using a laptop cooler which I put on top of the receiver over the venting slit on the amp, it draws the hot air out and creates an air flow within the cabinet which makes a huge difference on my amp.

Online fredeb

Re: Receiver in Cabinet temps
« Reply #7 on: November 09, 2019, 08:52:55 AM »
A 120 or 140mm computer fan running at 6-7VDC instead of the usual 12VDC will run dead quiet . You could even install 2 of them on the back panel , one mounted higher , that extracts warm air ; and one mounted lower to suck cool air into the cabinet . Hot air rises , so if extracting - mounted high , if blowing in - mounted low .

If only using one fan ; when extracting - mount fan high and drill holes with a 25 or 32mm spade bit beneath the amp and/or low on the back panel , negative pressure created by extracting fan will suck cool air in .

Last method - no fan , holes beneath the amp ( not where the feet rest  ;D ) , and holes along the top of the back panel , in this scenario convection will get the air moving .
...evolution is the gradual development and stratification of progressive series of wholes, stretching from the inorganic beginnings to the highest level of spiritual creation.
Jan Smuts

Online fredeb

Re: Receiver in Cabinet temps
« Reply #8 on: November 09, 2019, 09:02:57 AM »
I'm using a laptop cooler which I put on top of the receiver over the venting slit on the amp, it draws the hot air out and creates an air flow within the cabinet which makes a huge difference on my amp.

Good idea , many of these are USB powered , so you may be able to power it straight from the AVR .

https://www.takealot.com/cooler-master-notepal-l2-universal-notebook-stand/PLID47107266?gclid=CjwKCAiAwZTuBRAYEiwAcr67OY6peCQw5MCbNKiQoj122vrkTBGctes4SdMj9OgJThDHMxq-HKoVrBoC2DAQAvD_BwE&gclsrc=aw.ds
...evolution is the gradual development and stratification of progressive series of wholes, stretching from the inorganic beginnings to the highest level of spiritual creation.
Jan Smuts

Offline Shav

Re: Receiver in Cabinet temps
« Reply #9 on: November 09, 2019, 09:48:56 AM »
Heat is the killer of electronic components, not only electrolytic caps but semiconductors too.  ;)
Yeah Iíve had way too many issue because my amps didnít have enough ventilation


Sent from my iPhone using Tapatalk

Online KenMasters

Re: Receiver in Cabinet temps
« Reply #10 on: November 09, 2019, 11:16:18 AM »
You need decent clearance along the sides as well, that's where the cooler air is supposed to be drawn in from. As for placing a fan on top of the receiver (sucking air up, not blowing down), that's fine if the front of the cabinet is open, but it's better still to have the fan installed in the back of the cabinet, to pull the air out of the space.

It shouldn't get so hot that you can't place your hand on it, I have my AVR on all day driving not particularly efficient speakers and it only gets warm, you can quite happily place your hand on it and leave it there. My cabinet is closed in the front but there are gaps to let air in.

I have a silent 200mm PC fan installed behind the AVR connected via USB (when the AVR turns on, it turns on) that draws the air through the space, keeping the AVR cool (cooler than when I had the back panel of the cabinet completely removed - heat still built up in there without anything to draw it out).

Offline Drifter

  • Trade Count: (+21)
  • AVForums Grandmaster
  • *****
  • Posts: 2,928
  • Total likes: 234
  • otherside of the Boerewors Gordyn ...
Re: Receiver in Cabinet temps
« Reply #11 on: November 09, 2019, 11:21:23 AM »
What is your clearance above the denon?

I see Denon recommends 127mm.
https://denon.custhelp.com/app/answers/detail/a_id/354/~/amplifier-ventilation-recommendation

I sit with a simlar issue with heat and a confined space. I have just over 60mm clearance and it seems my Denon is ok so far.

Ive been looking into something like this to help with heat.  You have 3 optoins of top, rear or front venting.
https://www.acinfinity.com/component-cooling/component-fan-systems/aircom-t8-receiver-and-av-component-cooling-blower-system-rear-exhaust-17/

Anybody got experience with above acinfinity products?


Sent from my SM-A530F using Tapatalk

https://www.avforums.co.za/index.php/topic,76856.msg902145.html#msg902145

There is a whole thread about it.
It is worth every cent.

Offline naks

Re: Receiver in Cabinet temps
« Reply #12 on: November 09, 2019, 05:53:00 PM »
Good idea , many of these are USB powered , so you may be able to power it straight from the AVR .

https://www.takealot.com/cooler-master-notepal-l2-universal-notebook-stand/PLID47107266?gclid=CjwKCAiAwZTuBRAYEiwAcr67OY6peCQw5MCbNKiQoj122vrkTBGctes4SdMj9OgJThDHMxq-HKoVrBoC2DAQAvD_BwE&gclsrc=aw.ds


How quiet is something like this? Temperatures are starting to soar in Stellies, and we will easily be in the mid 40s by Jan/Feb, so I'm also keen to get some more cooling on the AVR.
LG OLED55C7, Oppo UDP-203, Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub

Offline oradba69

Re: Receiver in Cabinet temps
« Reply #13 on: November 09, 2019, 06:15:50 PM »
https://www.acinfinity.com/receiver-amp-cooling-fans/

Oops sorry see it was already suggested.  :facepalm:
« Last Edit: November 09, 2019, 06:36:50 PM by oradba69 »
Manufacturer of Audio Video furniture.
http://www.lerange.com

Offline dieOrg

Re: Receiver in Cabinet temps
« Reply #14 on: November 09, 2019, 06:33:54 PM »
https://www.avforums.co.za/index.php/topic,76856.msg902145.html#msg902145

There is a whole thread about it.
It is worth every cent.
Thanks for that ! I somehow missed the whole thread...

Sent from my SM-A530F using Tapatalk