The 1:8 ‘rule’ is not ‘hard & fast’. As long as load impedance (LCD-X, 20) is comfortably above source impedance (Artemis, 10), the headphone drivers should be well ‘controlled’ by the headphone amplifier.
The 1:8 ‘rule’ is not ‘hard & fast’. As long as load impedance (LCD-X, 20) is comfortably above source impedance (Artemis, 10), the headphone drivers should be well ‘controlled’ by the headphone amplifier.
The planar-magnetic headphone has an impedance curve, versus frequency (Hz), that is close to linear. This reduces ‘complexities’ faced by the headphone amplifier.
Changing impedance interaction would matter in dynamic drivers (or IEMs with hybrid configuration) because the impedance curve varies with the frequency. Planars have linear impedance to frequency, so it'll likely to affect the entire frequency range the same. I use impedance adapter on my Verum 1 on tube amps.
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