5 2.1 speakers.... - Page 2

Rishiguru...what precisely are you a guru about? What's your area of expertise? Because it certainly isn't human relations. You need to grow up mate, JRG makes the claim that he owns both sets. To my mind this puts him in a far better position to comment on the relative sound quality of these products. There have been hundreds of audio products through the years which, when analyzed scientifically, should sound crap. Yet they do not - in fact they can sound sublime.

Besides, saw the term "noob" one too many times for this forum

Quote:

Originally Posted by RishiGuru 

Quote:

Originally Posted by JRG1990 

Signal to noise ratio means nothing unless you know how it was measured, and it also depends on the source a cd generally has a S/N ratio of 93db, rating a piece of equipment on manufactures S/N  ratio is silly, the discrepancy is so bad a set with a 'lowly' 80db S/N ratio from a good source could be super quiet and a 107db 'awesome' piece has audible noise.
The noise can be anything including interference getting in though unsheilded wires.
THD like it's says adds total harmonic disortion adds harmonics to the oringal audio signal , the harmonics added can even be pleasing as they are musically related to the oringal audio signal.

 
 

 

Your quote: "THD like it's says adds total harmonic disortion adds harmonics to the oringal audio signal , the harmonics added can even be pleasing as they are musically related to the oringal audio signal."

 

AWARD AFTER AWARD. 

 

All the audiophiles out there, drop all your $40,000 audio equipments in the pond, since a new theory of THD has be invented.

 

My advice to you : "Learn before you speak" 

What new theory i don't understand, audiophiles probley don't want any types of disortion added to there music by there $40,000 systems so i would recommend they don't go droping them in ponds any time soon, but in reality total harmonic distortion is hardly perceptible to the human ear .

www.amazon.com , or go to google and click the shopping tab.

Quote:

Originally Posted by JRG1990 

What new theory i don't understand, audiophiles probley don't want any types of disortion added to there music by there $40,000 systems so i would recommend they don't go droping them in ponds any time soon, but in reality total harmonic distortion is hardly perceptible to the human ear .

JRG1990, I have nothing against you, it is just the way you describe & compare makes one doubt about how authentic your view is. Next time take the note of the following points:

1) When you do a review or a comparison, always provide your objective view first followed by the subjective one. Why? 

The difference between these two important ideas is the difference between fact and opinion. Facts are objective and provably true; however, if no clear facts exist about a topic, then a series of balanced opinions needs to be produced to allow the reader to make up his or her mind; opinions are subjective ideas held by individuals and so are always biased. If unbalanced opinions are presented as if they are facts, they act as propaganda or persuasion, e.g. a newspaper headline might state: "Youngsters are the prime cause of trouble in this area". This is presented as an objective fact but is clearly a subjective opinion.

An objective piece of information, therefore, needs either to be the whole truth and at least be unbiased or balanced, whereas a subjective point of view is biased because it is either not the complete picture or it is merely a viewpoint or expression of feelings.

So, the truth is what might be excellent in your ears might be just good for others, or better put if you choose Edifier S730 over Logitech Z-2300 then another person having a different taste may choose Z-2300 over S730.

But a audio frequency graph being objective, will remain a constant and irrespective of individuals taste. And it is always true.

2) Never talk about a subject that you do not know. Or if you provide a viewpoint regarding the subject, tell others that this is what your guess is & you might be wrong. Other knowledgeable members will understand that and will help you by defining or solving the problem. At least that's the way I learnt.

Since you were not able to provide the S730 audio frequency graphs that could have provided the solid base to verifying the truth of S730's performance, I was unable to come to a conclusion as to which one is better.

Regards, RishiGuru

Quote:

Originally Posted by xtasi 

hmm well it shows the edifier s330D as $200 which is in my price range.  The s730 is $500 which is definitely out.  Is the s330D good?  Also, how much is the s530 and where can i buy that?

The s330d will still have good sound quality better than any logitech, but the higher end s530 and s730 will be better, the s530 is probley around $300 i have no idea where to buy it in the usa, the edifier's are quite pricey but you get alot better quality system.
 

First of all, how was the frequency response of the speakers tested?

This is important as the room that the speakers were tested at have a huge influence on the frequency response unless it is an anechoic chamber. If speakers aren't tested at an anechoic chamber, the placement of the speakers and sub (moving even an inch) will heavily influences the outcome of the frequency response. Moreover, how much were each speakers angled in? Did the reviewer try to optimize the FR this way? This is important as tweeters are generally intended to be placed or at least point to our ear level (the mic in this case) because frequecies become more directional as it increases. Then there's the comb filtering factor that the reviewer mentioned. Also, why would he aim to test out the maximum bass setting? Lastly, how much were the graph smoothed? You really can't tell much beyond smoothing the graph over 1/12 octave IMO.

Therefore, comparing frequency response of different speakers would only be valid, IMO, if they're all tested in an anechoic chamber since there are so many variables involved if testings aren't done at a lab. That makes the FR comparison graph of the review pretty useless (IMO of course).

Besides, frequency response is only part of the equation in terms of sound quality.

Some more information:

What does that tell me?

• That they had some semi-good equipment to measure the speakers
• That they are very uncertain of the quality of those measures, and that the room was at the very best poorly treated since they speak of phase cancellation and comb filtering.

In other words, those measures, while not totally worthless are not worth much either., even the testers are a bit skeptical.

Let's forget a moment that the measures were less than perfect, and suppose that they were good, all they would tell me is that all those kits are trash. For example, the Logitech kit is at +64 dB at 180 Hz and +52 dB at 10kHz, ie ± 6 dB over 180-10000. That's quite bad at any price range, the others are not better.

So, if the measures are significant, all kits are trash, if they are not, you don't have any objective grounds to base your claim upon.

And RishiGuru:

Originally Posted by RishiGuru

 

Midrange drivers & tweeters does not always gives you excellent top end in the frequency spectrum.

 

Tom'sHarware on SP2500: "The Corsair SP2500 sounds good to my ear, whether playing back hard-hitting games or all sorts of music. I did notice a kind of hollowness in the mid-range—with vocals particularly—and this does reflect the valley we saw in the frequency response at 3.5 kHz."

 

Z-623's single aluminium phase plug driver does better job than the SP2500 separate midrange & tweeters drivers put together.

 

Tom'sHarware on Z-623 : "It boasts a flat frequency response with gobs of bass available for games and music at your command. There’s even a bit of brilliance on the high end."

 

So next time, do not access audio quality of a product by the number of drivers. Better go for the audio frequency graph. Also the "flat frequency response" as quoted by Tom'sHarware comes courtesy of "THX".

Don't go around dismissing JRG1990 subjective impressions when all you've got is Tom's Hardware's testers subjective impressions.