Tag Archive: Onkyo


Further to my earlier post: https://tickett.wordpress.com/2012/01/21/sonos-up-and-runnings-ish/ I have now received the Sonos Connect (ZP90) and have now solved issue #1 (stream to both Sonos S5 / Play 5 devices and my living room Onkyo TX-SR608 amp simultaneously) but issue #2 is still outstanding (streaming from the Onkyo TX-SR608 to the Sonos devices).

The problem is the lack of analog audio outputs on the Onkyo amp. Strictly speaking there are 2 sets of analog outputs on the amp: Zone 2 and VCR/DVR but they only work if the input is analogue (which in most cases it is not).

As the main device I’d want to send audio from the amp to the Sonos devices is my AppleTV 2 I think I will probably buy a Digital Optical to Analog RCA audio convertor (£20 off eBay)- this is also the more energy efficient solution as the amp won’t have to be powered to feed the ZP90. Unfortunately this will leave me unable to stream audio from the sky box, htpc etc but it’s unlikely I’d ever want to do that anyway…

L

I’m still yet to find a decent replacement for Google Powermeter (i’m starting to think i’ll need to write something myself… php/mySQL possibly?)

Anyway- i’ve noticed my baseline (always on) power consumption is pretty high so picked up an extension lead from maplin http://www.maplin.co.uk/power-strip-with-energy-and-co2-meter-348228 (£12.99) with a built in display (current consumption, max consumption, cumulative consumption, power factor etc) to check all of my devices to see where I might be able to realize some improvements.

Here’s what I found with some commentary:

Fish Tank Pump: 4W (Reasonable & not really optional)
32″ TV Standby: 4W (Not great but it’s normally turned off at the mains not left on standby)- On: 110W (Pretty poor but it is relatively old tech)
Sky+ Box: 20W (Appeared to draw the same power whilst in standby and whilst in use)
Clarke Tech 9000 HD Satellite Receiver Standby: 26W- On: 31W
42″ LG TV Standby: 1W (Expected for a relatively recent model)- On: 68W (Not bad considering it’s not LED backlit)
Boiler Idle: 3W
50″ Panasonic Plasma TV Standby: 20W (Very poor, but unsurprising for old tech)- On: 400W (ouch!)
Mordaunt Short Subwoofer Standy: 3W (Seems reasonable with the auto-on feature active)- On: 18W
Acer Revo r3610 XBMC HTPC Off: 3W- Idle: 32W- Watching a movie: 28W (why it uses more power when idle than whilst playing a movie i will never know?)
Mini TP-Link 5port Gigabit Switch: 2W (impressive!)
Linksys Enterprises Managed 24Port Switch w/POE : 41W (expected this- may do some research into alternatives)
4×4 HDMI Matrix Switch: 14W
Nintendo Wii Off: 3W- On: 16W
Onkyo 608SR Amp Off: 0W (impressive!)- On: 45W- Playing Loud: 55W
Netgear Router: 10W
HP Proliant Microserver in use: 40W (impressive!)
Giant American Style Samsung Fridge Freezer: 100W (pretty good from what i understand)
Dell Poweredge 2950 III Off: 30W (ouch- this is with both PSUs plugged in- i have already ordered replacement Supermicro servers which I believe use 40W roughly whilst on/idle!)- On: 350W (ouchhhhhh!)

That’s about all… We know the usual appliances: Kettle, Oven, Microwave, Toaster, Washing Machine, Tumble Dryer, Hover, Hair Dryer etc draw ridiculous amounts of power but I was predominantly interested in always on devices. I will try and add some makes/models above where i haven’t already put details. If you can recommend any green devices please do share!

L

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