The 880's I'd add some bass to but otherwise not touch. My phone is a OnePlus Nord 2 if that's relevant.It's funny because I just got the 990's and they are the first headphones I've owned that I haven't wanted to EQ at all. Looking at the tiny graphs shown in Poweramp EQ, it seems more like this is a bug, and Poweramp EQ is actually supposed to give the same results as EqualizerAPO, right? Why does the first filter (which is also shown as -9.9 dB in Poweramp EQ) barely have a -1 dB dip instead of the desired -9.9 dB?Īnd how could I achieve the same effect as with EqualizerAPO (purple graph) with Poweramp Equalizer? The yellow is EasyEffects again, but in FIR mode.
The purple and blue graphs that are nearly overlapping are EqualizerAPO (purple) and EasyEffects in IIR mode (blue). The brown graph is actually three overlapping graphs showing the output of the three devices without EQ running. Then, I repeated the same with my laptop's output, where I applied the same EQ preset with EasyEffects (Linux), and my FiiO E10K, connected to my PC, which was running EqualizerAPO to apply the same EQ preset. Well, since “weaker effect” could be some kind of placebo effect, I connected my phone's output to my sound card's input and did some REW measurements with and without Poweramp EQ running. However, the filters still seem to have a weaker effect than on my laptop. I had to add the “Preamp:” line and remove the headers to get Poweramp EQ to import it. Graphic example for some Bose headphones: Their format is pretty simple, just text-based lists of settings. Both graphic and parametric EQ modes are available. Poweramp can import AutoEQ preset files, so if you can massage your existing data from REW into that layout, it should be importable.
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