80hz eq is not good enough for real deep punch

[trautix]

technical question : i remember my old iRiver cd player iMP900 which eq was impressive. u could boost 50hz instead of 80hz in cowons players. what i think is that cowon should add 40-50 hz in eq option setup. but i doubt it is possible, unless wolfson company will edit dac chips.

[CrowdAds]

[dfkt]

Yes, it's technically not possible, since it's hardware based, not software. The lowest band on the S9's Wolfson EQ is a shelf, not a notch. It affects all frequencies below 80Hz equally. (Same goes for the highest band as well.)

Good EQing practice would be lowering the 2nd band (set to 220Hz wide) a few dB, so the 1st and 2nd band overlap and the 80Hz shelf gets cut off earlier.