As @Resolve said, the HE-400se needs an amp. HiFiMan’s claim that it can be driven by a phone is pretty laughable if you want any volume and fidelity.
That said, these cans aren’t ravenous for power. I drive them just fine with a TempoTec Sonata HD Pro and even better with an iFi Hip dac.
I’ll let you know how the Qudelix drives them. Full disclosure: I like some volume but not deafening, ear-bleeding levels. I’ve been in rock bands and have worked in professional motorsports for the last 30 years. I need to protect my tinnitus-ravaged hearing as much as possible.