Topping E70V filter response

[Stuart Polansky]

Found this interesting for anyone choosing which filter to use if you have a Topping E70V. I know that several people in the group have one.

https://www.audiosciencereview.com/foru ... 88/page-59

[FerdinandII]

IMHO
This is the main benefit from higher sampling rates. Lower order (slow...) filters can be used without attenuating audible frequencies.
I can think of only a very few cases where subjective reviewers have preferred the sharp (fast...) filter choice.

[HAL]

What would also be interesting is if they posted the impulse response of the AK4499EX DAC.

The first filter is a linear phase filter with pre-ringing. That does not show up in a frequency response plot. That is a non-causal filter that is not particularly good for music. The second filter is a minimum phase filter (Slow Roll-off) that is very good. The others are variants with one being a minimum phase apodising filter.

Fun with filters.

[FerdinandII]

What would also be interesting is if they posted the impulse response of the AK4499EX DAC.

The first filter is a linear phase filter with pre-ringing. That does not show up in a frequency response plot. That is a non-causal filter that is not particularly good for music. The second filter is a minimum phase filter (Slow Roll-off) that is very good. The others are variants with one being a minimum phase apodising filter.

Fun with filters.

The audioscience guy has a very warped and limited set of criteria for what's good and what's bad.
Frequency response isn't everything...!!