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Power conditioners suggestion

solderdude said:
It is cheaper to just look around on the web for those numbers and plots ?

Look at the plots of 1 type of headphone on 5 different websites and you get 5 different plots.
There are certain similarities between them obviously but you can see differences well over 10dB between plots.
The measurements you would be making will differ yet again... what will you learn ?
Click to expand...
Don't know exactly why the measurements of 1 headphone differs like that, what is a-weithning and why is implemented but..
I would buy that just to see if my planars have flaws somewhere (My EL8titanium from ebay seems to be little defective drivers because and distorts in some frequencies) and compare FR for my headphones, when i will have at least two,just because.. But of course i will buy it lately when i'll have money lol just was wondering if there is an easy rig that measures fr and distortion very simple, at not too much costly, then i would think about it :)
 
The fact that you don't know why different test rigs will produce different results on the exact same headphone is the reason why it doesn't make sense to own one ;)
 
Is there anything wrong with your equipment? Do you hear "noises" when you turn the volume to the max with no signal input? (be careful someone is not fiddling around with your stuff when you do that...). If not, I don't see what use a power conditioner would be, provided that the "noises" come from a bad bad bad power line...
 
solderdude said:
The fact that you don't know why different test rigs will produce different results on the exact same headphone is the reason why it doesn't make sense to own one ;)
Click to expand...
Most likely you're right, i'll inform myself for that.. at the worst Minidsp Ears could be a good headphone stand for 180$ ahah
 
Last edited:
Theo said:
Is there anything wrong with your equipment? Do you hear "noises" when you turn the volume to the max with no signal input? (be careful someone is not fiddling around with your stuff when you do that...). If not, I don't see what use a power conditioner would be, provided that the "noises" come from a bad bad bad power line...
Click to expand...
I really wanted to know if the background noise that a bad wall plugs with dirt electricity, is the one i find when i play a very short sound in total silence (Should play with at least moderate volume), that is like a 'noisy background' that comes in play with the sound itself.. I'm not speaking for the background noise that are in songs, that some songs have in recording more and some less, at least i think..
Sorry if i don't explained well that 'noisy background', i really wanted to know what it is..
If the power conditioner could clean that, or the most part, i would like to try one good, but i heard most ruin the dynamics.
Of course that 'noise background' in general listening is very hard to perceive but, you know when we are looking into those things what we try to achieve.. Even if my knowledge is very limited
 
What you describe sounds to me like distortion induced by the headphones, amp or DAC? I wouldn't blame the power line for it...
 
Theo said:
What you describe sounds to me like distortion induced by the headphones, amp or DAC? I wouldn't blame the power line for it...
Click to expand...
Nha, yep i have El8 titanium with very little distortion problem in drivers, but i can distinguish distortion vs background noise.. Would like to ask the 'noisy background' perceived i mentioned before even to others..
I have Topping D50 and Jds atom, supposed to be the clean est ones, very good cables, and i don't think them have problems or kinda..
Try yourself to play a very short sound (Not in shouty songs!) in total silence.. This could be an example: If you have a Playstation 3 or 4, or TV with YouTube app in it, go to YouTube, when you scroll the video with left/right you hear a short sound, try in that, i hear that 'noisy background' i mentioned, at certain volume of course, and is not that loud when distortion comes in place..
Always asked myself why it still there even if i have audiophile equipment, it should be 'clean' lol
This is serious question btw :)
 
That's not supposed to happen, no. Would you mind listing the shortest possible signal chain that does it, including cabling and any settings if possible?

A few possible theories would include:
1. The culprit being something ahead of the headphone amp that momentarily unmutes upon playback and has a relatively high internal noise floor. I would take a long hard look at whatever serves as the DAC and its digital input and analog output levels. Make sure processing isn't stuck at 16 bits, and that the amp receives a healthy amount of input level, i.e. its volume isn't too high up (no higher than 10-11 o'clock or so on a volume pot).
2. The noise might even be contained within the source files themselves. Have some that are known clean (signal at least 60-70 dB above noise)?
 
"POP" noise when light turned off on same circuit as system. Here's the kicker - its all protected by a APC surge protector up to 1600 jules. What should I do?
 
Deacon Blues said:
"POP" noise when light turned off on same circuit as system. Here's the kicker - its all protected by a APC surge protector up to 1600 jules. What should I do?
Click to expand...

Get a simple, cheap mains HF filter (designed for dealing with etnernet-over-power-line and X10).
 
is it common to go through the surge protector, then the internal electric surge protection into the speaker?
 
Deacon Blues said:
is it common to go through the surge protector, then the internal electric surge protection into the speaker?
Click to expand...

You would only use a surge protector on a speaker if it is a powered speaker. A surge protector only protects against surges (such as caused by lightning strikes), not against noise.
 
Deacon Blues said:
"POP" noise when light turned off on same circuit as system. Here's the kicker - its all protected by a APC surge protector up to 1600 jules. What should I do?
Click to expand...
A problem like this calls for a Arc Suppressor / Snubber Network.
CDE Cornell Dubilier and Mallory have resistor capacitor units.
They are placed across the offending light switch. Unfortunately there is very little internat info on installing them.
 
Julf said:
You would only use a surge protector on a speaker if it is a powered speaker. A surge protector only protects against surges (such as caused by lightning strikes), not against noise.
Click to expand...
The protector is for the whole system.
 
This was the results of noise when I tested a power conditioner outlet 20 years ago:

Without it:
image015.gif

With it:
image024.gif
 
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