u/Disastrous-Oil-8600

I bought a Focusrite Scarlett 4i4 and I'm having some problems. Even with everything muted in Focusrite Control 2 and in the interface, sound continues to come out of outputs 3 and 4, and the sound is extremely loud compared to outputs 1 and 2. How can I lower the volume? And I would also like to know if it's possible to use the output button to control all outputs 1-2/3-4?

If you can help me, I would appreciate it.