Now I know why everybody is going to Class D - When will Nelson be forced? - diyAudio
Go Back   Home > Forums > Amplifiers > Pass Labs
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Pass Labs This forum is dedicated to Pass Labs discussion.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Closed Thread
Thread Tools Search this Thread
Old 2nd December 2009, 07:29 PM   #1
diyAudio Member
Join Date: Nov 2005
Location: colorado
Default Now I know why everybody is going to Class D - When will Nelson be forced?

Mr. Green's Efficiency Watch - Q4 2009

Audio/Video Specification : ENERGY STAR

Last edited by coloradosound; 2nd December 2009 at 07:31 PM. Reason: missing links
Old 2nd December 2009, 08:16 PM   #2
The one and only
Nelson Pass's Avatar
Join Date: Mar 2001
Old 2nd December 2009, 09:53 PM   #3
expert in tautology
diyAudio Member
bear's Avatar
Join Date: Apr 2002
Location: New York State USA
I suppose when they start to ration electricity Class A will not be something that anyone other than those with off grid energy sources or have wealth can use. Until then, who cares about "Energy Star" consumer junk specs??

_-_-bear -- Btw, I don't actually know anything, FYI -- every once in a while I say something that makes sense... ]
Old 2nd December 2009, 10:02 PM   #4
Account disabled at member's request
Join Date: Oct 2008
Originally Posted by bear View Post
who cares about "Energy Star" consumer junk specs??

Attached Images
File Type: jpg coal-plant.jpg (21.9 KB, 889 views)
Old 2nd December 2009, 10:23 PM   #5
Account disabled at member's request
Join Date: Oct 2008
Originally Posted by bear View Post
who cares about "Energy Star" consumer junk specs??

Polar bears resort to cannibalism as Arctic ice shrinks -
Old 2nd December 2009, 11:26 PM   #6
FrankWW is offline FrankWW  Canada
diyAudio Member
Join Date: Jul 2004
Location: n/a
Default This is about to get "POLITICAL" a Bad Thing, I think

I won't comment myself but here is a quote from a paper to be found here:

Arctic warming goes with the floe « Watts Up With That?

On the 2nd of November 1922, The Washington Post published the following story: “Arctic Ocean Getting Warm; Seals Vanish, and Icebergs Melt”. The corresponding report in the Monthly Weather Review of November 1922 (Ifft, 1922:589) had also stated that the ice conditions in the Northern North Atlantic were exceptional; in fact, so little ice has never before been noted.
Well, I will comment only to say such conditions have existed before and no blame was laid to anthroplogically caused global warming. The most notable period was that of the Medieval Warming Period during which they were growing wine grapes in Norway, grain as far North as the 70th parallell, and that was the period in which Greenland got its name. I fear there is a loss of judgement on the part of folk who are munching down at the trough of public funding - this is very bad for Science.
Old 2nd December 2009, 11:36 PM   #7
Bonsai is offline Bonsai  Europe
diyAudio Member
Bonsai's Avatar
Join Date: Jul 2003
Location: Europe
Well, ice cores from glaciers in the northern and southern hemisphere tell a very different story. The data avaiable from these core extractions goes back 800 thousand years and we are currently experiencing the warmest period based on this information. In the last 60 years, the carbon content in the atmosphere has gone from 271ppm to >350ppm and the increase carbon going into the atmosphere has DOUBLED in the last 10 years. At the current rate, the atmospheric carbon content will hit 450ppm by 2050. The warm peiod in the middle ages was driven by a different mechanism - the current warming is driven by an increase in atmospheric carbon. If you want to see just how bad the problem is, take a look at the latest National Geographic - they have a nice graphic depiction near the front of the magazine.

I don't know about you, but in my books this is serious sh1t.

I agree, class D sucks. Class A above 10W will contribute to the problem above. So go for Class AB and save the planet.
bonsai and DIY here

Last edited by Bonsai; 2nd December 2009 at 11:40 PM. Reason: correct spelling mistakes
Old 2nd December 2009, 11:44 PM   #8
Fuling is offline Fuling  Sweden
diyAudio Member
Join Date: Aug 2001
Location: Sweden (Mora)
Originally Posted by Bonsai View Post
class D sucks. Class A above 10W will contribute to the problem above. So go for Class AB and save the planet.
...or class A below 10W and speakers above 100dB/W
Old 2nd December 2009, 11:46 PM   #9
Thunau is offline Thunau  United States
diyAudio Member
Thunau's Avatar
Join Date: Mar 2001
Location: PA USA
Please take the GW discussion elsewhere. It's become more about politics than science long time ago.

I'm pretty happy with combination Class TD amp (Lab Gruppen C10:8- 8x125W installation amp) It's rather efficient and sounds great. Awesome low end and smooth as silk highs.
"Most people just say what they know, the wise ones know just what to say."
Old 3rd December 2009, 12:26 AM   #10
tinitus is offline tinitus  Europe
diyAudio Moderator R.I.P.
Join Date: Nov 2005
Well, a major problem with energy is really that at certain times of day and night a lot more energy is produced than really needed
Their best solutions is to store this "waste" energy to pump up water, and use that water to pump turbines when needed again
Problem right now is that the very long energy transport isnt sufficiently dimensioned to do it

Another paradox is that an electro motor driven car polute just as much as any other normal car, as long as energy comes from common powerplants
And how many cars do you think it would take to polute as much as one single moped
In Germany theres quite a lot "waste" money iven to people who buy new better cars
But that means they have exstremely many "old" cars that arent really old at all, but quite fine cars, but now just waste

If I use say a Pass F5 in all of the cold winter months, it wouldnt surprice me if I actually would save money on that
You also need to think about the energy used to produce all the components that goes into any design, and all transport issues
Also consider whether its rebuildable, or just waste when burned or out of date
A tubeamp could last forever

This constant buy and throw away is far more worse
And this "panic" could really become much more dangerous
Dont forget that very many product that are advertised to save energy, arent really holding specs
Some clever people are just using these circumstances to make huge profit, and really only making things much worse

Last edited by tinitus; 3rd December 2009 at 12:34 AM.

Closed Thread

Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
forced aircooling makeb4break Tubes / Valves 40 11th February 2009 02:58 AM
nelson jones 10w class a p robertson Solid State 1 15th June 2007 09:32 PM
I ask for schemas of preamplifiers of class A. Help Ms. Nelson Lukas Pass Labs 9 6th April 2003 11:08 PM

New To Site? Need Help?

All times are GMT. The time now is 01:37 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2