Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › A query about impedance
New Posts  All Forums:Forum Nav:

A query about impedance

post #1 of 4
Thread Starter 

Hello there! I'm not an audiophile but I'm trying to become one, so I always try to learn everything regarding sound. I know high impedance means that you need more power to run your cans, but I don't know if a 55 ohm headphone (AKG K 271 Mk II) can work properly on my iPod Classic (without a headphone amp). I don't expect it to sound as great as when you are using an amp, but I need to know if the sound quality gets a lot worse when running them directly from my iPod.

 

Regards!!


Edited by kingcrimson69 - 11/16/12 at 4:58am
post #2 of 4
Quote:
Originally Posted by kingcrimson69 View Post

Hello there! I'm not an audiophile but I'm trying to become one, so I always try to learn everything regarding sound. I know high impedance means that you need more power to run your cans, but I don't know if a 55 ohm headphone (AKG K 271 Mk II) can work properly on my iPod Classic (without an amp nor a headphone amp). I don't expect it to sound as great as when you are using an amp, but I need to know if the sound quality gets a lot worse when running them directly from my iPod.

 

Regards!!

 

kingcrimson69

It will sound fine.

post #3 of 4
Quote:
Originally Posted by kingcrimson69 View Post

Hello there! I'm not an audiophile but I'm trying to become one, so I always try to learn everything regarding sound. I know high impedance means that you need more power to run your cans, but I don't know if a 55 ohm headphone (AKG K 271 Mk II) can work properly on my iPod Classic (without an amp nor a headphone amp). I don't expect it to sound as great as when you are using an amp, but I need to know if the sound quality gets a lot worse when running them directly from my iPod.

 

Regards!!

 

kingcrimson69

 

Heya,

 

There's more to it than impedance. You need to look at impedance and sensitivity together.

 

The K271 MKII is 55ohms (that's low impedance), and sensitivity is 91dB/mW (this is actually not that sensitive). The impedance is telling you that the headphone will not need much voltage to move the voice coil, but it will enjoy a lot of current. The sensitivity is telling you how much pressure it can exert with power. So the impedance here is low, and it doesn't take much voltage, so an amp really isn't needed in regards to the impedance. However, the sensitivity is a little low, which means it will still need more power to achieve higher volumes, so here is where you might notice better performance with a small amplifier (nothing big and crazy, a Fiio E6 or E11 would be plenty). The K271 MKII will run fine from your ipod. It will perform a wee bit better with some amplification.

 

Very best,

post #4 of 4
Thread Starter 

Thanks for the reply!!

 

Yeah, I was wondering what sensitivity meant too. Besides, I'm about to buy a turntable with speakers and a nice reciever, so I will not have problems there. I also want to buy the Fiio E17, cause I heard a lot of very possitive reviews. Anyway, I love neutral sound, so this will be perfect for me.

 

Thanks again!!!

New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Headphones (full-size)
Head-Fi.org › Forums › Equipment Forums › Headphones (full-size) › A query about impedance