My approach is very simple:
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Via iFi's companion Nexis app on Android, the GO Link 2 can also be updated on the go and further customized with digital filters. The GO Link 2 supports two digital filters — one hybrid and one linear — so that you can adjust things to your preferred sound profile. You can also use the Nexis app to set volume limits when you're listening with the DAC attached.，这一点在夫子中也有详细论述
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其中 λ≈1.05，α≈1.67。