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Do all receivers run hot? - Page 3

post #21 of 28
Quote:
Originally Posted by rmp459 View Post
Depending on the brand, more than others, but yes most all receiver get quite warm/hot quickly.

Get a small 12V DC power supply and hook it up to a 30-60 CFM 120mm fan exhausting/pulling out the hot air from the top of the receiver.
This. I jumped my 8 year old Dell OEM PSU and hooked up 2 Scythe Jyuni fans to draw the air from the ventilation holes at the top of my Sansui receiver. I'm not worried about cooking my receiver, but I am worried about the heat getting to my media player which sits on top of my receiver.
    
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post #22 of 28
Onkyos are known for running hotter than lets say Denon for example: My TX-SR805 runs extremely hot even when there are no enclosures around it. My TX-SR-701 ran even hotter. The 805 has a sensor and tells me the temperatures inside.

My previous receiver, the TX-SR508 ran very cool in comparison to the other two.

During movies when the receiver is set to 6 Ohms, it can go up to 58C which is pretty hot. Most of the heat comes from TR which where the HDMI board is.

I bought a fan for my receiver and it cools it fairly well. If heat is an concern, I would think about using a couple of 120mm fan attached to a AC/DC adapter.

Otherwise you can pony up 30 bucks for this thing:

http://www.buyextras.com/evavcoblfanf.html
Edited by youra6 - 6/17/11 at 9:39am
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post #23 of 28
I have had my Onkyo HT-R340 running all morning at about mid volume and I would not call it hot. warm case sure, but my 47" screen is warmer than the amp. Mine is also in a cubby open to the front mostly closed to the back (cable pass throughs only).

Amps do tend to get warm when ran hard.

Check the ohm rating on the speakers vs. amp.. it matters alot.
Also make sure the RMS on the speakers is not too much for the amp.

From Manual
Power output:
All channels:
130 W (8Ω, 20 Hz–20 kHz, FTC)

Dynamic power:
2 x 260 W (3Ω, front)
2 x 200 W (4Ω, front)
2 x 95 W (8Ω, front)

1000W sounds like alot... but some how never ends up being that much.
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post #24 of 28
Quote:
Originally Posted by Fooliobass View Post

1000W sounds like alot... but some how never ends up being that much.
Probably a typo, must be 100W.
post #25 of 28
converting power from AC to CD always leads to some inefficiency where some power is lost as heat. after that, it just depends on how good the company planned the cooling.

i recommend going water cooling 8)
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post #26 of 28
Quote:
Originally Posted by Skoobs View Post
converting power from AC to CD always leads to some inefficiency where some power is lost as heat. after that, it just depends on how good the company planned the cooling.

i recommend going water cooling 8)
rofl that would be ill.

Honestly a single 120mm fan over the PSU part of the receiver will drop the temps like 10 fold, its amazing what a little exhaust does.
    
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post #27 of 28
Quote:
Originally Posted by Derp View Post
I was very close to picking up some cheap bookshelf speakers to use with a 2004ish 6.1 1000w onkyo receiver but after using it for a day or two I realized this thing was running very hot with only two tiny surround sound speakers running 2.1. The receiver is on top of a table with all vents free to breathe, not stuffed into a stupid death cubby. It's basically a space heater which isn't what I want in the summer.... It should be hitting 100+ where I live in the next month or so.

Is this normal? Do most receivers run really hot?
Bigger power supply = more idle heat output.

If you want to reduce idle heat set your receiver to 4 ohm mode (6 ohm is default). On Onkyo receivers this drops the idle voltage and you might see the temp drop a few degrees.

(on the other end this hard caps output to around 60W/channel).
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post #28 of 28
Quote:
Originally Posted by Iceman23 View Post
Probably a typo, must be 100W.
Not a typo, a quote to the power of the system from OP. (130x6) + 220 = 1000 watt total
Whether you can get that out of it is another question.

to OP

How hard are you pushing the amp?
What are your ambient temps?
Do you have good clean power coming in?
To get the full power out of it it wants 4.6Amps @120V 60hz. odds are your less than the 120V and that can cause the resistance of the whole machine to go up, making it work harder producing more heat...You cant starve an amp for power.

Also

I would look into upgrading that 22AWG wire. Too small of wire can increase the impedance making the amp work harder again.
Edited by Fooliobass - 6/17/11 at 1:45pm
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