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Audiophile by accident . The Hobby: An Unexpected Journey - Page 25

post #361 of 458
Thread Starter 
Quote:
Originally Posted by davidsh View Post
 

What's the difference?

 

I found a good explanation here:

(it is from purepower and they have some marketing there, so make abstraction of it :)) )

Quote:
A power regenerator is an electronic component which contains internally a 60Hz oscillator driving a high capacity power amplifier. Its 60Hz output is what powers the audio system, and the ac from the wall is only used to power the regenerator itself. So in principle the audio system will see ac power that is very pure, and essentially free of noise, harmonics, etc.

A power conditioner is essentially a filter, which passes the 60Hz ac from the wall to the audio system, while attenuating to some degree the noise and other spectral impurities that may be present. Some of them also provide outlets that are isolated from each other to some degree, so that noise from digital components can be prevented from coupling into analog components via their power connections.

 

You should also look here.

Quote:
These are nice features to put on a power conditioner but still don’t offer true isolation from the local utility. Our biggest complaint about the expensive conditioners is that many of them crush the dynamics of your audio system to such an extent, they ruin the listening experience.

 

 

 

Quote:
 What are the most common AC problems? 
There are 10 things that can go wrong with your inbound AC power from the local power company that will affect your system. We call them the ten Power Gremlins. 
1.       Blackouts:w1.jpg A total loss of utility power
2.       Frequency variation:w2.jpg A change in frequency stability
3.       Transients: w3.jpgInstantaneous high voltage increase in the range of nanoseconds
4.       Harmonics: w4.jpgDistortion of the normal waveform, generally transmitted by non-linear loads
5.       Over Voltage:w5.jpgIncreased line voltage for extended periods of a few minutes to a few days
6.       Brownouts: w6.jpgReduced line voltage for extended periods of a few minutes to a few days
7.       Sags: w7.jpgShort term low voltage 

8.   EMI  w8.jpg (Electro Magnetic Interference):
High Frequency waveform - often referred to as noise
9.   RFI w9.jpg (Radio Frequency Interference):      
Also a High Frequency waveform - often referred to as noise
10.  Surges: w10.jpg Short term high voltage
Do typical power conditioners protect my systemtoygremlin.jpg  from all 10 Power Gremlins?
 
No. Some provide protection from 2 or 3 or even 5  of these threats but no power conditioning product except power regenerators solves all of them at the same time in one box. 

 

 

Quote:
 What is AC Regeneration? 
This is the term used to beforeafter200.JPGdescribe the process of converting the inbound AC from the utility company into DC, then back to AC again as a perfect, noise-free, stable voltage sine wave. Power Regenerators deliver newly generated AC to your system, at the point of use and always keeps it totally isolated from the utility supply.

Edited by dan.gheorghe - 9/5/13 at 5:33am
post #362 of 458
None of the top 10 problems with power are that there isn't enough current delivery yet there are many that claim a passive filtered AC cord improves dynamics in amps. So does the filtering improve power supply efficiency?
post #363 of 458
Thread Starter 
Quote:
Originally Posted by Happy Camper View Post

None of the top 10 problems with power are that there isn't enough current delivery yet there are many that claim a passive filtered AC cord improves dynamics in amps. So does the filtering improve power supply efficiency?

 

I think it depends on the gear you use it with. For example if i got you right and didn't misunderstand you, the wireworld aurora power cable has passive filtering and it had the same effect as the ps audio power conditioner had with conductor, loss of dynamics, bass depth, punch, etc.

post #364 of 458
I was interested in this power regenerator, but I'm concerned about the fan.
In the brochure they say the unit is nearly silent, but 15db at 1m is far from silent. I'm sure I could hear the fan during a pianissimo...damn, the transformer in my amp really bothers me sometimes.
Have you had any problems with noise?
post #365 of 458
15db should be more than silent especially with headphones on
post #366 of 458
Thread Starter 
Quote:
Originally Posted by realmassy View Post

I was interested in this power regenerator, but I'm concerned about the fan.
In the brochure they say the unit is nearly silent, but 15db at 1m is far from silent. I'm sure I could hear the fan during a pianissimo...damn, the transformer in my amp really bothers me sometimes.
Have you had any problems with noise?

 

It doesn't bother me. I have it at least 1.3 meters away from me. It is easy to hear when the computer is off. So practically, the computer overpowers the generator in noise by far.

 

I will tell you what my phone db meter measures when the computer is closed from my listening position (from 1.3m away from the regenerator).

post #367 of 458
That would be cool! Please turn the pc off, as I haven't got one in my room
post #368 of 458
Thread Starter 
Quote:
Originally Posted by realmassy View Post

That would be cool! Please turn the pc off, as I haven't got one in my room

 

Ok have done the test. With the computer and everything powered off i have 28 db in the room. With the AG500 turned on, I have 36 - 37 .

 

The ag500 is at 1.3 m from me and the fan is in the opposite direction of me.

post #369 of 458

Thanks.

This is waaaay too loud. It's a shame because a headphone system might use 60-80W, so clearly there's no need to use a fan to cool the re-generator down.

I think it also depends on the noise we  usually have in the listening room: I listen only in the night and the room is on the other side of the living room where wife and kid are watching the TV. Now I'm curious, tonight I'll check the noise in the room.


Edited by realmassy - 9/10/13 at 4:44am
post #370 of 458
Thread Starter 

Guys, DarKu found an excellent video about audiophiles:

 

Who are we (audiophiles) ? 

 

post #371 of 458
Quote:
Originally Posted by dan.gheorghe View Post
 

Guys, DarKu found an excellent video about audiophiles:

 

Who are we (audiophiles) ? 

 

Watched it twice since Darku gave it to me. Thinking of watching it again. It's just too good :))

post #372 of 458
Although there is probably a mass of evidence to suggest the contrary, I don't really consider myself an audiophile.
post #373 of 458
Quote:
Originally Posted by Tony1110 View Post

Although there is probably a mass of evidence to suggest the contrary, I don't really consider myself an audiophile.

 

What do you consider yourself then? :) Don't you like audio? :)

post #374 of 458
Quote:
Originally Posted by Tony1110 View Post

Although there is probably a mass of evidence to suggest the contrary, I don't really consider myself an audiophile.

 

Ah! Denial....The first symptom....  :D

post #375 of 458
Quote:
Originally Posted by longbowbbs View Post
 

 

Ah! Denial....The first symptom....  :D

 

Shh! He'll panic :P

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