In Reply to: What I do... posted by Triode_Kingdom on January 7, 2016 at 18:51:43:
Some low-impedance phones will give lumpy bass with a 150 ohm series resistor (or 120 ohms if you want to implement the IEC/IHF standard). Grados among others are said to suffer this problem. Note that I am not a headphone guy myself - but we do have a lot of customers so we get plenty of feedback on what works.
A solution is to make the 8-ohm shunt a voltage divider - for example 5.6 ohms and 2.4 ohms. for more flexibility, 8-ohm L-pads are widely available.
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Follow Ups
- RE: What I do... - Paul Joppa 20:10:23 01/07/16 (2)
- RE: What I do... - Triode_Kingdom 14:18:00 01/11/16 (1)
- RE: What I do... - horn kid 08:12:25 03/17/16 (0)