Speakers are the same between Realtek and Tempo.
If you want to apply an EQ that is reasonably flat I would suggest the following:
| Frequency | Filter | Gain | Q |
|---|---|---|---|
| 6000 Hz | Highshelf | 4.85 | Attenuation -20db/decade |
| 5272 Hz | Bandpass | 3.83 | 2.636 |
| 2016 Hz | Bandpass | 4.85 | 0.672 |
| 1250 Hz | Bandpass | -3.49 | 4.167 |
| 600 Hz | Bandpass | -8.0 | 4 |
| 80 Hz | Highpass | 0 | Attenuation -20db/decade |
This will be flat but not super loud. There is a small notch around 5272Hz due to the front port structure.
If you wanted a minimal eq, but to boost the high end due to the notch you can play around with the Highshelf and the notch at 5272hz. This will improve the clarity.
The highpass at 80Hz is just to limit DC to the drivers.
The Notch at around 600Hz is around the Fo of the drivers, but you could leave this off if you just want your audio to be louder.
@Graham_Lane Cranking the Dynamic boost is going to compress the audio which will increase the THD, but to many people will sound “better”. I vaguely remember some audio experiments that showed that if you increase the volume slightly in AB testing, that people will usually think the louder version sounds better.
If you want to get even fancier you could enable a multi-band compressor/compander and have separate EQ for different bands.
Edit: dB->Hz