I didn't expect the sound would be so weak for such cost.
Sound is too unbalanced.
Lacks low-end. They have a drop around 100-250 Hz, which makes the sound very thin. Checked on a symphonic orchestra recordings and there is low end. I mean, you can feel even 40 Hz. But the "fullness" low end is not there. With string quartet recordings it just screaming high frequencies, which you hardly can enjoy.
All the sound is concentrated at the high end. The high frequency is extremely annoying. Has some unnatural metallic rise around 10 kHz.
EQing might help, because as I mentioned, they can do low frequencies. But it requires you a system-wide EQing.
A big disappointment.