Balanced/Neutral
JOYROOM JR-E107
- Rose Gold
- Grey
- Silver
VSONIC GR07 Classic
- Blue
- Maroon
- Silver
Tenhz P4 Pro
- Black
- Carbon Fiber
KZ ZEX Pro Crinacle
- Black
- Pink Gold
Knowledge Zenith ZS10
- Black
- Blue
- Red
A sound signature which is balanced/neutral/even across the frequency range, can also say that no frequency range covers/overlaps the other frequency range.