I'm looking at getting a new pair of headphones from Shure, and looking at the extreme E5c model, the specs show:
* Speaker Type: Dual Live Performance Drivers
* Sensitivity (at 1kHz): 122dB SPL/mW
* Impedance (at 1kHz): 110 Ohm
* Cable Length: 1.55m (62 inches)
* Net Weight: 31g (1.1oz)
* Input Connector: 3.5 mm (1/8") gold-plated stereo plug
compared to the E2c:
# Speaker Typeynamic MicroDriver
# Sensitivity (at 1kHz): 105dB SPL/mW
# Impedance (at 1kHz): 16 Ohm
# Cable Length: E2c: 1.57m (62 inches) E2c (in black): 1.45m (56 inches)
# Net Weight: 30g (1 oz)
# Input Connector: 3.5 mm (1/8") gold-plated stereo plug

The impedance is 110 Ohm at 1kHz for the E5c, versus the 16Ohm for the E2c. Now does this affect the amount of power required to play at a certain volume? Logic would tell me that it would require a higher power output to drive a better speaker at the same volume as a lesser quality speaker (read E5c vs. E2c).

What I think is that I wont be able to play the E5c as loud at the same volume setting as the E2c, is that correct?

7/13/2006 10:09:19 AM

The volume would depend on the speaker design, but generally it does require more power to get the same volume at a higher impedance.

But if the reviews for the headphones don't note any problems, then you should be fine.

7/13/2006 11:58:47 AM

I certainly cant crank my E2c's to the ipod's max volume, I usually listen to them at about 75% when in the gym to overcome the shitty pop/dance music that plays on the in house speakers

I just dont want to buy these and need a battery powered headphone amp to go along with it just to get the sound volume comparable to my E2c

7/13/2006 12:13:50 PM

Impedance, eh? Yeah if you need higher quality output at increased volume then Cialis is your best bet.

7/13/2006 12:51:20 PM

haha

7/13/2006 12:59:54 PM

aha, funny guy

I just noticed that the E2c is listed as a ynamic MicroDriver, haha

7/13/2006 1:16:09 PM