Help decide between Onkyo, Pioneer others

[ParadigmDawg]

Keep in mind that random airflow does little to assist in cooling. A well designed system needs to be pretty air-tight and ideally will pull the hot air off from the top.

I used two very quite fans and fastened them to the back of my credenza with heavy duty velcro. One pulls hot air from the PS3 and the other from the amp. They are triggered to turn on from my amp. The shelf has weather stripping to keep it air-tight and another piece of Masonite velcros over the opening where the wires come out(not shown in picture).

Blow out a match in front of your gear so you can see what affects the airflow.

 

[vkumar]

I just barely received mine, and have yet to hook it up ( waiting for my LCD TV to be installed ).

I talked to an Integra dealer, and according to him it's the nature of the beast, it's due to the amp and how much airflow they have around them.

A unit sitting on an open shelf will run cooler than a unit that is shut in an enclosed cabinet - what I'm planning to do, is to cut slots in the bottom of the shelf that the 806 sits on and install a small fan on top of mine to assist with air flow through the unit - I'm doing this even though my receiver is sitting on a semi open shelf, I figure that $30 is a small price to pay to ensure that the temps stay under control.

I purchased a aux fan for my PS3 as well, just to make sure that it stays cooler than it would other wise.

I'm probably going to install a USB powered fan in the cabinet it's self so that anytime the TV is turned on I get additional airflow through the cabinet.

If you want, I have spent a fair amount of time, looking at different types of fans and can pass on to you, many of the links I have.

Thanks I'll take your research on fans and attachment.

Vijay

 

[vkumar]

Keep in mind that random airflow does little to assist in cooling. A well designed system needs to be pretty air-tight and ideally will pull the hot air off from the top.

I used two very quite fans and fastened them to the back of my credenza with heavy duty velcro. One pulls hot air from the PS3 and the other from the amp. They are triggered to turn on from my amp. The shelf has weather stripping to keep it air-tight and another piece of Masonite velcros over the opening where the wires come out(not shown in picture).

Blow out a match in front of your gear so you can see what affects the airflow.

I agree with your assessment. I was wondering whether the unit ran hot. Also among the units I listed Pioneer, Onkyo etc., do any of them run cool--because that could influence my purchase decision.

Thanks

 

[ParadigmDawg]

Onky seems to run hotter than Yammy, Denon and Pioneer.

 

[Chopper Greg]

Onky seems to run hotter than Yammy, Denon and Pioneer.

Can some of the extra heat be explained by how much power each audio channel is capable of producing?

The Yamaha's I have seen appear to run someplace in the vicinity of 90 WPC, while the Onkyo 806 is listed around 130 WPC, with Pioneer around 100 WPC - not sure about the Denon.

At first glance, it appears to me that the more power per channel is going to equal more heat produced, by the receiver - if so, that is going to be another factor to consider.

 

[ParadigmDawg]

That could play into it but the way companies display watts is misleading so all the mid-line AVRs are likely all putting out the same power. Onks just run hot by design, it is not really a bad thing and they make good AVRs but if you don't have breathing room, you may look at something else.

My Yammys always ran cold, my Denon runs warm, I have never owned a Pioneer.

Can some of the extra heat be explained by how much power each audio channel is capable of producing?

The Yamaha's I have seen appear to run someplace in the vicinity of 90 WPC, while the Onkyo 806 is listed around 130 WPC, with Pioneer around 100 WPC - not sure about the Denon.

At first glance, it appears to me that the more power per channel is going to equal more heat produced, by the receiver - if so, that is going to be another factor to consider.

 

[Chopper Greg]

Thanks I'll take your research on fans and attachment.

Vijay

These are by no means any kind of ultimate list, but will get you started and give alot of ideas.

http://www.sportsimportsltd.com/amreccoolpro.html
http://www.coolerguys.com/cabinetcooling.html
http://www.activethermal.com/default.htm
http://www.coolcomponents.com/Cooling-Products_c_6.html
http://www.amazon.com/s/ref=nb_ss_7_12?url=search-alias=aps&field-keywords=cooling+fan+for+electronics&sprefix=cooling+fan+

A thread on another forun about cooling A/V equipment.

 

[lsiberian]

Can some of the extra heat be explained by how much power each audio channel is capable of producing?

The Yamaha's I have seen appear to run someplace in the vicinity of 90 WPC, while the Onkyo 806 is listed around 130 WPC, with Pioneer around 100 WPC - not sure about the Denon.

At first glance, it appears to me that the more power per channel is going to equal more heat produced, by the receiver - if so, that is going to be another factor to consider.

Heat is produced by various things. It is probably a result of their board design. They aren't going to pay for a redesign if the unit functions properly in normal conditions. Without an electrical engineering analysis discovering the issue would be difficult. I personally like the idea of having a pre-processor and separate amps for maximum flexibility, but cost is too high.

PDawg does nice work. I'm impressed by the fan build.

 

[Chopper Greg]

That could play into it but the way companies display watts is misleading so all the mid-line AVRs are likely all putting out the same power. Onks just run hot by design, it is not really a bad thing and they make good AVRs but if you don't have breathing room, you may look at something else.

QUOTE]

Perhaps - the 806 spec page on Tiger Direct's web site appears to be more complete than I normally see for other companies.

I take that as a sign that they are at least trying to be informative.

 

[ParadigmDawg]

Now that's funny. Strube had to tell me what Masonite was and how to cut it. Here is a thread on the whole thing. It goes way off topic just like all my threads.
http://forums.audioholics.com/forums/showthread.php?t=53135&highlight=cooling

PDawg does nice work. I'm impressed by the fan build.

 

[TimJay]

Pioneer VSX-23

I bought Pioneer VSX-23, its by far the best value for the money. The retail price is $800 from a authorized dealer, but you can get it around $550 - 600 through any of the shopping search engines. (nextag.com, pricegrabber.com, etc.) The warranty is not valid unless you purchase from an authorixed dealer, but you can buy a $500 CPS audio warranty on Comp-U-Plus.com for 19.99. The Pioneer VSX-1019 got the CNET editor's choice award and they are not being discounted. The VSX-23 is alot better quality and alot of extras, such as 3 zones. I should receive it next week.

 

[bigtoys]

Onkyo question

There seem to be some Onkyo fans on this thread, so I'll post this here rather than starting a separate thread.
What are the most significant differences between the HT RC180 and the NR 807?
Both are networkable, right?
Has anyone used the Sirius or XM yet? I have subscriptions to both, so I am very interested in this. How does it work; they say it bypasses the computer.
Should I have a CAT5 jack installed behind my receiver?
I'm getting a new receiver very soon as I'm having a new home entertainment unit installed sometime in the next week or two.

Thanks.

 

[dapack69]

There seem to be some Onkyo fans on this thread,
Thanks.

Who's an Onkyo fan?

From what I can tell the HT-RC180 has less power, does not have an internal fan, nor does it have 12v triggers, rs232 connector or IF connector.

 

[Chopper Greg]

Who's an Onkyo fan?

From what I can tell the HT-RC180 has less power, does not have an internal fan, nor does it have 12v triggers, rs232 connector or IF connector.

Ok, stupid question time-

How important are 12V triggers?

If they were that important would they be available as an after market item?

I'm not saying that they don't exist, but I haven't seen any while trying to learn about A/V stuff.

 

[dapack69]

All a 12v trigger does is when you turn on your receiver another piece of equipment will come on at the same time.

I'll never use mine, Im lazy but not lazy enough not to pick-up a second remote to turn on another peice of equipment.

 

[Chopper Greg]

So let me ask this then, do they make 12V aftermarket boxes - i.e. plug your main piece of equipment into the box, then the box into the wall, and when your main piece of equipment goes live other equipment then goes live ( like cooling fans )?

 

[dapack69]

Good question. That is one I can't answer though.

 

[Chopper Greg]

Is what I'm suggesting making sense?