10. Is it normal that the K7 is heating?

The THX AAA 788+ module, which has better output power and sound effect, also bring the same heating problem for K7 as the K9Pro. In addition, the K7 heat dissipation is relatively slow since the K7 uses closed enclosures. After a long time of use, the shell will be warmer and this is normal.
And there is an overheating protection system in the K7. When the internal temperature exceeds the set value, the protection system will be triggered. Therefore, you don't need to worry about the heating in the K7.