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EzyRak
0
Mar 3, 2022
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No, the PC38X have an impedance of just 28 ohms, which is quite good for for a pair of headphones to be used on phones and laptops. Amps are required for the 'real' audiophile headphones, like the Sennheiser's HD600s, as they have higher impedance of 300 ohms, and that is only done to achieve the full sound stage and exercise the actual power of the headphones. Adapters can be found anywhere in the market.
Evshrug
4144
Keyboard Club Member
Jan 3, 2023
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EzyRakIt's more significant that it has high sensitivity... impedance matters a bit, but you can drive a 120 Ω Sennheiser HD 560S just fine from a Dual Sense controller, but the 50 Ω Fostex T50RP mkIII sounds really quiet, and obviously doesn't have enough power headroom. The difference? The HD 560S has 110 dB/1Vrms, while the sensitivity of the T50RP is just 92 dB/mW. That's on a logarithmic scale, 20 dB of difference would have been 100x more sound pressure. You actually have to have a powerful enough amp to turn up the volume more for a T50RP than you do for an HD 600 (300 Ω, and 97dB/1Vrms).
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