I’ve heard from a few knowledgeable people that a 2 pole configuration butterworth filter is “useless” as a DAC interpolation filter but good as a cross over filter, is this true? I struggle to wrap my head around this stuff but from reading Wikipedia it appears to be a slow roll of linear...

I Had an audiogram done recently due to hearing imbalance and here are my results Im wondering if anyone can help me with parametric EQ settings to get a close to perfect match with my left ear (blue) I am using Roon software so I can run procedural EQ in one channel, im just not great with...

Does low distortion actually contribute to “fatigue free sound” ? Transducer distortion is already so high to mask it anyway so does odd or even harmonic distortion it doesn’t really matter, is there any truth to this statement used by many manufacturers?

Anyone know a list of DAPs with precise channel balance settings in the software? My hearing isn't what it used to be and since an illness Im worse in the right ear, my MacBook is the only option for fine tuned settings but I want something more portable.

Say you have an amplifier with high gain and it doesn’t allow you much control over the volume pot would digital volume control be better instead? Now if I set the output to something like 3/2V then it’s very small adjustment on the amplifier from quiet to loud. If I turn the amp up to 80% and...