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Headset/earbuds Questions

post #1 of 6
Thread Starter 
I will keep it short and simple and pardon me if this is the wrong section but i am really confused about these.

1. There are a couple of earbuds i have come across, which are fairly cheap (less than 25$) though they're not branded. Their frequency range is 20hz-20khz and the sensitivity is 108 ohms. Now I'm confused because I have been told that if the lower frequency is below 20hz then the earbud/headphone will produce better bass but then I have seen expensive headphones (over 200$) which have 20hz-20khz rating. Does it mean, they don't produce enough base?

2. Headphone with the same specs as an earbud would produce pretty much the same quality of sound? My guess is no but then they're both rated with same specs. Does that have any influence over their qualities whatsoever?

Thanks!

EDIT: Below are the links, of the earphone/headphone, i am looking at. All these have 20hz-20khz frequency response.

http://www.interdiscount.ch/idshop/product/Kopfhoerer/899210_ER-8814995865601/MICROSPOT_In-Ear_Kopfhoerer_City/detail.jsf

http://www.interdiscount.ch/idshop/product/Kopfhoerer/899211_ER-8814995800065/MICROSPOT_On-Ear_Kopfhoerer_City/detail.jsf

http://www.interdiscount.ch/idshop/product/Kopfhoerer/874011_ER-324434913329632/Sony_MDR_RF810RK_-_Kopfhoerer_-_volle_Groe%C3%9Fe_-_draht/detail.jsf

http://www.interdiscount.ch/idshop/product/Kopfhoerer/901123_ER-8813834895361/Marshall_On-Ear_Kopfhoerer_Major_Black/detail.jsf
Edited by shad0wboss - 4/10/14 at 9:08am
post #2 of 6
EDIT: This guide pretty much sums it all up. And the pic made me laugh.

Usually when the frequency response is stated in numbers, it's nothing but empty words.
Why? Because:
Quote:
Definition: Frequency response is a specification that indicates how evenly a speaker or electronic component reproduces sound over the range of human hearing. A frequency response specification includes the frequency range (usually 20Hz - 20kHz) and the amount that the specification deviates from perfectly flat response, measured in decibels.

What really matters is the deviation from the perfectly flat response. And "20Hz-20kHz" (the range) tells you absolutely nothing about it.
This is how the frequency response should be stated. (Click to show)

HD668B has frequency range of 10Hz-30kHz
AD700 has frequency range of 5Hz-30kHz

And the AD700 has much lighter bass than the HD668B.

Imho the only thing that the frequency range tells you is that the headphones are made for humans. Because human ears can only hear 20Hz-20kHz frequencies.
Edited by Tiihokatti - 4/10/14 at 10:22am
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post #3 of 6
Thread Starter 
So you mean that the frequencies don't mean anything and have "nothing" to do with the bass and treble quality?

So my new question is:

- Why do they even bother stating those frequencies?
- What about the sensitivity? Is that proportional to loudness?
Edited by shad0wboss - 4/10/14 at 11:49am
post #4 of 6
Quote:
Originally Posted by shad0wboss View Post

So you mean that the frequencies don't mean anything and have "nothing" to do with the bass and treble quality?

So my new question is:

- Why do they even bother stating those frequencies?
- What about the sensitivity? Is that proportional to loudness?
It would take too much room to add the graphs for the frequency response to the product details (and most ppl won't be able to read/understand the graphs).
As for sensitivity: Yes, it basically means how "loud" the headphones can get. It has it's own math behind it.
Oh, and this quote pretty much sums up why the product descriptions are what they are: (Click to show)
Quote:
If you ask a lot of the audiophile manufactures why they don’t offer more complete specs for their products they often counter with something like: “specs don’t really matter”.

Edited by Tiihokatti - 4/10/14 at 1:01pm
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post #5 of 6
Thread Starter 
So, to put it simply, an earbud with 20hz-20khz can easily outperform another earbud with 12hz-24khz in sound quality?
post #6 of 6
Quote:
Originally Posted by shad0wboss View Post

So, to put it simply, an earbud with 20hz-20khz can easily outperform another earbud with 12hz-24khz in sound quality?

No, those ranges tell you nothing. If you want to know how they sound, look at a frequency response graph. If you want to know how loud they can get with your particular amp/device, then look at the sensitivity.
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