How much power is consumed when leaving devices on? (Splitter & Receiver specifically) - AVS Forum
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post #1 of 7 Old 02-14-2013, 09:50 AM - Thread Starter
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I recently purchased an HDMI splitter:
http://www.amazon.com/gp/product/B008B7ARRK/ref=oh_details_o01_s00_i00

To use with my Yamaha RX-V661 Receiver. This allows me to output video to two TVs at once.

One of these TVs is in a back room without visibility to the receiver. I was thinking about keeping my receiver on so that I did not have to go to the other room and locate the remote to turn on the receiver, and would love to know roughly how much power is used if I would do this. Is there some type of easily formula I could use if I find the voltage of my receiver?

Also would like to know how much power is drained by a splitter like the link I provided above. Unfortunately this device seems to be "always on" and the only alternative is to get a bi-directional HDMI switch which is powered over HDMI.

Any information is greatly appreciated.

Thanks!
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post #2 of 7 Old 02-14-2013, 02:35 PM
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More than the formula, you should invest in a kill-a-watt meter. It is very handy to have and is useful for any situation whether it is a fridge, audio equipment or anytime you are curious as to how much power is consumed. I had a Yamaha RXV-763 and that was taking about 50 watts when doing nothing. While it looks small, its over 30KWH a month. Your receiver may be slightly different but not by much. On the other hand, if you put it to standby it comes down to less than 1w.
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post #3 of 7 Old 02-14-2013, 03:26 PM
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There is no "formula" , because some equipment has no standby mode and draws a lot of power all the time, whereas a lot of more modern gear goes into a "sleep" mode after several minutes.

For example, I have a laser printer that uses 460W when printing, 75W when not printing, and only 5W when it goes into sleep mode after a few minutes.

Many of the newer TVs and HT gear have similar specs, because FTC requirements are strict now on standby power consumption.

Anything more than 3 years old may not be so good.
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post #4 of 7 Old 02-14-2013, 03:39 PM
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Quote:
Originally Posted by WeApOn View Post

I recently purchased an HDMI splitter:
http://www.amazon.com/gp/product/B008B7ARRK/ref=oh_details_o01_s00_i00

To use with my Yamaha RX-V661 Receiver. This allows me to output video to two TVs at once.

One of these TVs is in a back room without visibility to the receiver. I was thinking about keeping my receiver on so that I did not have to go to the other room and locate the remote to turn on the receiver, and would love to know roughly how much power is used if I would do this. Is there some type of easily formula I could use if I find the voltage of my receiver?

Also would like to know how much power is drained by a splitter like the link I provided above. Unfortunately this device seems to be "always on" and the only alternative is to get a bi-directional HDMI switch which is powered over HDMI.

Any information is greatly appreciated.

Thanks!

Since that splitter comes with a 5 watt PSU, it won't draw more than 5 watts.

How are you controlling the source components from the other room and are you using a second zone?

You might look into a new AVR that supports HDMI standby passthrough, but I'm unclear as to what you're doing or how you're doing it.

Need. More. Info.

Two would seem to be two too many to me too.
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post #5 of 7 Old 02-15-2013, 05:51 AM - Thread Starter
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Quote:
Originally Posted by Oliver Deplace View Post

Since that splitter comes with a 5 watt PSU, it won't draw more than 5 watts.

How are you controlling the source components from the other room and are you using a second zone?

You might look into a new AVR that supports HDMI standby passthrough, but I'm unclear as to what you're doing or how you're doing it.

Need. More. Info.

Thanks. I have very little understanding of power and voltage usage. I think the kill-a-watt meter will be a great idea.

As far as controlling the components -- I have two I am using from the other room -- My PS3 and my PC. With my receiver on, I can simply turn on the PS3 using the bluetooth controller and my TV in the second room. I keep the receiver in 'OTHER' mode for audio, which means it will pass the audio through to my TV speakers(planning to upgrade soon). The PC is unfortunately too far to control with standard wireless keyboard&mouse, so I am looking into bluetooth keyboards, which seem to be less popular than they used to be. Only micro keyboards for phones seem to be filling the market.

Is HDMI standby passthrough something that would send the HDMI signal through the HDMI out even when the unit is off? That does sounds like a great idea for my situation.

And I was very curious about a second zone. I asked about that in another thread awhile back, as I was wondering if I could connect speakers in that back room and use those with my receiver somehow.

Thanks for the information.
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post #6 of 7 Old 02-15-2013, 05:03 PM
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Yep, HDMI standby passthrough does just that, it passes HDMI signals even when the receiver is in standby.

The 661 can drive two speakers from its EXTRA SPEAKER terminals. These can go in your remote location and can be accessed when you assign them to Zone 2 in setup.

You might consider an X-10 Remote Repeater that takes IR, converts it to RF, sends that through the wall to an RF receiver that converts the RF back to IR and blasts the equipment with commands.

If your cabling run is short, then a Sewell IR Repeater Kit might work for you. Sewell also makes extension cables to extend the length. The biggest obstacle with this type of kit is the emitters cover the IR ports of the components and will obstruct their reception of commands by a remote that's in the same room. IOW, this kit is for gear you've stuffed away, yet still need to control. So, on second thought, it probably isn't the right solution for you. But, eh, I've already typed it, so I've left it.

Either way, you'll need to get a learning remote to copy the IR commands from all the remotes used to control the stuff in the room with the receiver, but they're cheap.

Two would seem to be two too many to me too.
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post #7 of 7 Old 02-16-2013, 04:11 AM
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Quote:
Originally Posted by WeApOn View Post

One of these TVs is in a back room without visibility to the receiver. I was thinking about keeping my receiver on so that I did not have to go to the other room and locate the remote to turn on the receiver, and would love to know roughly how much power is used if I would do this. Is there some type of easily formula I could use if I find the voltage of my receiver?

Power costs will differ from area to area, however a very rough estimation would be to divide the wattage usage by 10 and that is the monthly cost (eg. 50W power draw will cost $5/month or $60/year).

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