Preset
The EQ button on the DAC steps through the same list. Its light then flashes the number of the preset (Bass + is 1, IEM is 2, and so on) and stays on while an EQ is active. Every EQ lowers the overall level a few dB so that its boosts cannot clip.
My EQ
Load an EQ made for your earphones
Ready-made EQs from the AutoEq project, each computed from a published measurement of that model.
Not in the list? Paste a profile or choose its file
Two places make one from a measurement of your earphones:
- squig.link: show your earphones and a target, open Equalizer, press Auto EQ, then Export. The file is called “… Filters.txt”.
- AutoEQ (autoeq.app, or the AutoEq project on GitHub): the file called “… ParametricEQ.txt”.
Ten bands are the most the DAC takes. Lines look like “Filter 1: ON PK Fc 105 Hz Gain 6.0 dB Q 0.70”. Peaks (PK) and shelves (LSC, HSC) need a gain; low-pass (LP, LPQ), high-pass (HP, HPQ), band-pass (BP) and notch (NO) have none, e.g. “Filter 2: ON HPQ Fc 20 Hz Q 0.71”.
Digital filter
Crossfeed
Feeds a little of each channel into the other ear, a fraction of a millisecond late and low notes more than high ones, as a loudspeaker's sound reaches both ears, so hard left / right recordings sound less inside the head. The same crossfeed as Infinity's. Off above 192 kHz.
Polarity
Volume at plug-in
Takes effect the next time the DAC is plugged in.