If one reads any of the IEM reviews by AmirM, on ASR, its usual for him to suggest some EQ, to improve the outcome. After about two weeks listening to the T10, I took off the EQ which I had applied, and it still sounds OK, but definitely some EQ would enhance the presentation, and tailor it to one's own preferences.
Overall the default sound is a bit anaemic in the mids, tending to a V-Shaped sound, with a bass emphasis. I use the default EQ, in Reaper, my DAW, so I do not know how it will translate in settings to other EQ's and unfortunately it does not have a single view that allows me copy all the settings and list them here. The compromise is - I'll share the graphs.
I use two EQ instances of this equaliser, in series.
1st EQ is what I call "corrective" - to :
1. Flatten a bit any peaks a bit, based on measurements that I can find on squig.link. So it does not sound too discontinuous in the treble
2. Boost the upper high frequencies above 12Khz a bit - this is not unique to the T10, most IEM's tend to need this.
3. Boost the upper bass/lower mids round about 500hz, to add some body
Here's the graph of the corrective EQ
View attachment 384209
Then I have a 2nd instance of EQ, to tilt the response away from the emphatic bass, so I get a little bit of clarity. This is a broad based tilt with a high shelf and a low shelf, nothing else, wit more emphasis on cutting the bass -1.5 dB, than lifting the treble +0.5dB. Here it is.
View attachment 384208
Thought it important to caveat any opinions I have expressed earlier, by providing the exact details of how I listen to the Artti T10's. Definitely always with these EQ's enabled, in the audio path. Nothing drastic, most of the EQ's (all parametric) are within +/- 1.5dB. Cumulatively, they do add up to a shaping that I obviously enjoy more than the stock sound. I will add, compared to other IEM's, EQ shaping on the T10's produces more of an impact. I can hear the difference with more ease, between EQ enabled and EQ disabled. Definitely works better with EQ.
Maybe when I have some time, I'll explore any potential that could be gained by using AutoEQ.app to generate correction EQ., and compare with my own "manual" correction.