Hiss headphones for xiaomi redmi 5

The phone I bought few days ago. Xiaomi redmi 5 model with 3 gb ram. When listening to music and viewing videos on YouTube at low volume headphones hiss. On average, the hissing you can hear is not so much, but too loud. Earphone is 16 ohms. Philips she 2550. Tried them on a galaxy s8+ and meizu m5c. All is good, no hiss.
Test headphones dexp s410. They also have a hiss.
Now ordered 2 pairs of headphones. Sennheiser and philips. They are 32 Ohm. Will test on them. They say the problem can be because of 16 ohms.
If anything, you'll have to pass on the warranty. Listen to music and watch YouTube often, so the problem for me is very significant, because this hiss to hear anything in the headphones impossible.
The hiss is when listening through the speaker.
There may be those who are faced with the same problem on the same phone. Write a review please I would be very grateful.