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HiFiMAN HM-901 visit pg 18. IMGS pg 19. FW:1.085 . . . . - Page 192

post #2866 of 2868

In-ear headphones demand very high signal-to-noise ratio, but don't require high output, because the efficiency is high. Full size headphones typically have very low efficiency and the impedance is relatively very high.

To excel with both types of headphones, the HM-901 has a low-gain output and a high-gain output switch. Low gain is for the smaller type headphones, like earphones, earbuds, in-ears. The high gain is more powerful and is designed for use with full-size headphones.

post #2867 of 2868

while this may all be true, i was discussing the difference between the dynamic IEM vs the BA IEM

post #2868 of 2868
Quote:
Originally Posted by angelo898 View Post
 

while this may all be true, i was discussing the difference between the dynamic IEM vs the BA IEM

http://musictechreview.com/in-ear-monitors-balanced-armature-drivers-vs-dynamic-drivers/

 

This might prove useful :)

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