Hafler HA75 Headphone Amplifier Reviewed
July 29, 2015 Comments Off on Hafler HA75 Headphone Amplifier Reviewed
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“. I could also pump up the gain even more by reducing the Feedback setting. Output impedance is rated at 20 ohms, which in my opinion is a suitable spec. (Higher output impedance minimizes level differences among headphones and protects against shorting; lower output impedance improves damping factor and minimizes the effect of the headphone amp on the frequency response of the headphone.)”
Audiophilepure 
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