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Power supplies affect on the sound. - Page 2

post #16 of 66
Quote:
Originally Posted by astroid View Post
I understand the theory , the expensive cables are supposed to filter out more RFI but modern amps and cd players do that already, has anyone here truly heard a difference they can positivly attribute to the cable?
RFI can be a problem. However, you do not address RFI with a cable. That's silly. What do you is buy a RFI filter for about $3 from an electronics store. There's a big bin of them at the shop I visit in Torrance - I like to use them in my projects. And $3 is a whole lot less than what it costs to have someone put Home Depot wire into a garden hose filled with sandblasting medium. Why, $10 of parts magically transforms into $300, or even $3,000 for an "audiophile" cable. They lie to rip you off. It really is that simple. Research cable "science" yourself and you'll see.

The power supply itself is a different matter. What you want is a clean, filtered and regulated supply that won't sag when the amp hits peaks and transients. You want to start with a high-quality transformer, not some cheapie made by 11 year old slaves in some forbidding backwater. Then, you're going to want it well rectified until any ripple is gone and then nicely regulated. If you want to go the extra mile, put a RFI filter and put DC blocking caps before the transformer.

Assorted snakeoil is not necessary.
post #17 of 66
Quote:
I understand the theory , the expensive cables are supposed to filter out more RFI but modern amps and cd players do that already, has anyone here truly heard a difference they can positivly attribute to the cable?


Quote:
Originally Posted by Uncle Erik View Post
And $3 is a whole lot less than what it costs to have someone put Home Depot wire into a garden hose filled with sandblasting medium. Why, $10 of parts magically transforms into $300, or even $3,000 for an "audiophile" cable. They lie to rip you off. It really is that simple. Research cable "science" yourself and you'll see.

Assorted snakeoil is not necessary.
Why does every thread have to become a soap box for the same old rhetoric???

The thread is titled "Power supplies affect on the sound". How do you read "Power supplies affect on the sound ,oh and tell us why you think cables are a rip off"
post #18 of 66
Quote:
Originally Posted by Real Man of Genius View Post
Electricity generated from a hydroelectric dam will be warmer and have deeper bass whereas electricity generated by a nuclear power plant will be more revealing but may cause your highs to be so sibilant they actually glow in the dark.
I've seen it and I trust my eyes.
Quote:
Originally Posted by Zorander View Post
Go with solar power. More natural- and warmer-sounding.
Quote:
Originally Posted by Happy Camper View Post
Wind turbine is airier.
LOL - Thanks guys, I needed a good laugh this morning.

So would coal-fired power yield solid, earthy bass?

On a more serious note, I know changing to a higher quality computer PSU unit did seem to make an audible difference to my ears. With regards to your setup, I expect YMMV greatly depending on your ears and gear.
post #19 of 66
Quote:
Originally Posted by 883dave View Post
Why does every thread have to become a soap box for the same old rhetoric???

The thread is titled "Power supplies affect on the sound". How do you read "Power supplies affect on the sound ,oh and tell us why you think cables are a rip off"
One reason might be that posts 12-14 dealt with power cables? I guess that's OK, to drift from a discussion of PSUs to power cables, but not to diss power cables once they are brought up?

As far as the OP goes, once the signal hits the first gain device in an amp, you are basically listening to the power supply (being modulated by said gain device). Its rejection of noise on its input, and of noise coming back in from the section it is powering are both important aspects of its sonic performance.
post #20 of 66
"The motor in a gramophone
is the source of all the energy
which we ultimately hear as sound."

Modern Gramophones & Electrical Reproducers, London, 1929
post #21 of 66
Actually, it really depends on the load the power supply is driving. The more difficult the load is the power supply design will be more critical.

Some speaker systems can present real challenging load. But for headphone, power supply is not critical as long as it provide adequate clean power.
post #22 of 66
Quote:
Originally Posted by Zaubertuba View Post
LOL - Thanks guys, I needed a good laugh this morning.

So would coal-fired power yield solid, earthy bass?

On a more serious note, I know changing to a higher quality computer PSU unit did seem to make an audible difference to my ears. With regards to your setup, I expect YMMV greatly depending on your ears and gear.
Coal fired has a veil. Good dynamics though for such a cheap supply.

I brought up the power cord because I noticed a better performance of my amp when I put it on. Because it can only impact the power supply, I thought it worthy of mentioning. Sorry to have been the cause of this.
post #23 of 66
Thread Starter 
So the final conclusion of this is that i probably should upgrade my stock power supplies to the astrodyne power supply in any case.
although i am using mostly low impedance cans (RS-1 and AHD5000).
post #24 of 66
The effect my power conditioner has on SQ is just incredible, but I think it has something to do with the fact my compass dac/amp is very sensitive to how clean the power is and doesn't have a very complex PSU (maybe not complex enough to fully utilize the rest of the circuit I mean) and how dirty my tin house' electricity is. I don't know how much you are going to spend on a new PSU, but I suspect you might get more bang for your buck by going for a power conditioner instead, plus, if you get a good quality one enough you won't ever have to upgrade it. Can't give advice on what power conditioner though because I only have 1, a cheapo Furman one.
post #25 of 66
Thread Starter 
Quote:
Originally Posted by haloxt View Post
The effect my power conditioner has on SQ is just incredible, but I think it has something to do with the fact my compass dac/amp is very sensitive to how clean the power is and doesn't have a very complex PSU (maybe not complex enough to fully utilize the rest of the circuit I mean) and how dirty my tin house' electricity is. I don't know how much you are going to spend on a new PSU, but I suspect you might get more bang for your buck by going for a power conditioner instead, plus, if you get a good quality one enough you won't ever have to upgrade it. Can't give advice on what power conditioner though because I only have 1, a cheapo Furman one.
what is a power conditioner exactly?
post #26 of 66
For audio application most power conditioners just clean up the noise and provide protection like a surge protector but don't regulate the voltage. There's many different kinds of power conditioners, I don't know what kind is necessary for audio.
post #27 of 66
Isn't a "power conditioner" build into every PSU?
post #28 of 66
PSU's do perform power conditioning, and there's many different types of PSU. I am not sure, but I suspect a good power conditioner will benefit even a piece of audio equipment with an overbuilt PSU. I recently ordered an audio-gd dac19mk3 which I presume has a better PSU than my current audio-gd dac/amp compass and when I get it the first thing I'll test is the sound of the dac91mk3 out of the wall and out of my power conditioner and see if there's as big a margin as between compass out of the wall and out of the power conditioner.
post #29 of 66
Which differences with your power conditioner and the Compass did you notice?
post #30 of 66
The difference is like a live puppy vs. a stuffed one. I can listen all day with my power conditioner (sometimes I do lol) but I get fatigued after an hour or two without it. Often I think it was just as significant an improvement as upgrading from the halo sound card to the compass, and if the improvement I got is anywhere near the norm considering the myriad variables (different equipment, how dirty my/your power is, etc), then I'd say the SQ improvement I get from my power conditioner is 2x that of my blue dragon headphone cable, 4x that of my audio-gd power cable. My furman ac-215 power conditioner MSRP costs as much as the blue dragon, and if I had to choose to keep JUST ONE there'd be a 20 to 1 chance I'd choose the ac-215 which removes noise, rather than the blue dragon which will reveal the soulless lows/mids of my home's unconditioned power.

Maybe upgrading the PSU may be better in your case, but I think the extra benefit of a power conditioner is that you can use it for anything so it never becomes useless to you.
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