I hope it is correct, what I found to this topic on the internet.

I needed to look because I had up to now no demand for research on this topic.

As I regarded this topic as interesting, I had a look and hope that I do not summarize it wrong. Otherwise sorry

But maybe you can prove this yourself now where you know where to look for.

Careful: compare at equal volume levels, louder sounds better and you might have a bias (psychoacoustic).

Your headphones all have relatively low impedance, ranging from 32 to 37 ohms. For simplicity, let’s assume an average impedance of 35 ohms.

With the 6.3 mm output (10 ohms), you would achieve a damping factor of: 35 ohms / 10 ohms = 3.5

With the 3.5 mm output (0.1 ohms), the damping factor would be 100 times higher: 35 ohms / 0.1 ohms = 350

It’s generally recommended to aim for a damping factor of at least 10 for headphones, meaning the output impedance of the headphone amp should not exceed: 35 ohms / 10 = 3.5 ohms.

So, when you have two outputs to choose from—one with 0.1 ohms and one with 10 ohms—the 3.5 mm output (0.1 ohms) will likely provide better bass control due to the much higher damping factor.

What does a higher damping factor improve?

— Tighter bass response: A higher damping factor means that the amplifier can quickly and precisely return the headphone driver’s diaphragm to its neutral position after each movement, resulting in cleaner and less "boomy" bass.

— Reduced distortion: With a low damping factor, the driver may "overshoot" and introduce distortion, especially in the low-frequency range. A higher damping factor reduces this, leading to a cleaner and more accurate sound.

— More consistent frequency response: The impedance of headphones changes with frequency, and a higher output impedance (low damping factor) can interact with this and distort the sound. A higher damping factor keeps the frequency response more accurate and less affected by this interaction.

— Better dynamic control: A low damping factor can result in the amplifier not having enough control over the driver during fast or loud sections of music. A higher damping factor ensures the headphones can handle dynamic shifts more precisely.

In summary, the 3.5 mm output (0.1 ohms) will give you clearer bass, lower distortion, and overall more accurate sound, especially with low-impedance headphones like yours.

BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub13