MrMateoHead
500+ Head-Fier
- Joined
- Oct 22, 2012
- Posts
- 963
- Likes
- 121
Let me add that,
Headphone A is Sennheiser HD 595
Headphone B is Hifiman HE-400
According to Inner Fidelity,
Senn 595 requires (for 90 Db)
0.55 Volt RMS
0.05 mW
Impedance is 55 Ohm
Hifiman HE-400 (for 90 Db)
.129 Volt RMS
0.33 mW
Impedance is 51 Ohm
So, evidently, Hifiman wants 4 time less voltage, and almost 7 times the wattage of the Sennheisers to produce 90 decibels. I don't understand how the Sennheisers require barely a miliwatt to reach 90 decibels. They are rated 112 dB @ 1 Volt RMS. By that figure alone, I would assume 92 dB @0.1 Volt RMS.
I am trying to get myself straightened out.
Headphone A is Sennheiser HD 595
Headphone B is Hifiman HE-400
According to Inner Fidelity,
Senn 595 requires (for 90 Db)
0.55 Volt RMS
0.05 mW
Impedance is 55 Ohm
Hifiman HE-400 (for 90 Db)
.129 Volt RMS
0.33 mW
Impedance is 51 Ohm
So, evidently, Hifiman wants 4 time less voltage, and almost 7 times the wattage of the Sennheisers to produce 90 decibels. I don't understand how the Sennheisers require barely a miliwatt to reach 90 decibels. They are rated 112 dB @ 1 Volt RMS. By that figure alone, I would assume 92 dB @0.1 Volt RMS.
I am trying to get myself straightened out.