XTZ EarPhone-12 is designed with an appropriate philosophy in mind:
IOW, unlike other random IEM companies, the manufacturer actually employees a conventional ear simulator for calibrating their products. As such practice is essential for making an accurate, high-quality headphones, it can be assumed that XTZ certainly know what they're doing.
- An improved soundstage
- Clearer voices
- A tighter and deeper bass reproduction
- Improved timbre
- Perfect Balanced Sound
Since Dirac's HD technology has been proven to be very legit, a huge improvement in sound quality can be expected.
CON: Short bandwidth & slight channel mismatch in the low frequency range, which can be fixed by adjusting the top vent.
ON SECOND THOUGHT #3: None of the vents are depressurizers, which means there's a diaphragm flex whenever the IEM is inserted into the ear canal. And as mentioned above, adjusting the top vent brings down the amplitude below 1 kHz, and compensates any deviation caused by manufacturing error. If there's any low-frequency mismatch, simply block the top vent with a duct tape, create a pin hole on it, and adjust the size of the hole until both channels are equally matched.
And while the app neither corrects nor optimizes the transient characteristic of the IEM., it keeps the stock response largely intact, which can only be realized by using a high-resolution DSP.
ON SECOND THOUGHT #5: Once XTZ Player kicks in, XTZ EarPhone-12 becomes closer to the Hi-Fi reference suggested by Dr. Sean Olive of Harman.