In Reply to: RE: Interfacing Sun Audio SV-300BE tube amp output w/ Audeze LCD-X Headphones posted by Triode_Kingdom on August 8, 2022 at 09:16:16:
For example, Grado sr325 are 32 Ohm 99.8dB/mW and LCD-x are 20 Ohm 103 dB/1mW and should be used with resistor or transformer interface devices.
On the other hand, many recent headphones, especially the planar types, present much lower sensitivity and/or higher impedance.
For example, Hifiman Susvara are 60 Ohm 83dB/mW, Hifiman HE6se 50 Ohm 83.5dB/mW, and Abyss 1266 Phi TC 47 Ohm 88 dB/mW. These work fine with many speaker amps without resistor networks, as long as one does not do something as careless as pushing "play" with all volume controls at max.
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Follow Ups
- True for LCD-x and Grado - Jon L 17:52:12 08/08/22 (1)
- thanks for responding. very informative (nt) - Zebra_Finch 17:02:03 08/10/22 (0)