JCALLY JM6 Pro vs JM12 for Truthear Gate + S25 Ultra — which should I buy?

Hi everyone,

I've decided to get the Truthear Gate (3.5mm) and I'm now choosing between the JCALLY JM6 Pro and JM12 from Headphone Zone.

I'll be using:

Galaxy S25 Ultra → DAC → Truthear Gate

I will be buying only from Headphone Zone, so I'm specifically looking for advice between these two.

The JM6 Pro has the CX31993 + MAX97220, while the JM12 uses the KT02H20. I mainly care about clean sound, low noise/hiss, reliability and good compatibility with the S25 Ultra. I don't need a lot of power since I'll mainly be using IEMs.

Which would you choose between the JM6 Pro and JM12, and why?

Also, if anyone has used either with a Samsung S-series phone, I'd especially like to hear your experience.

Thanks!