Zoom F8n Pro 8-Input / 10-Track Multitrack Field Recorder - Manual (Page 106)

Setting output levels
The MAIN OUT 1/2 and SUB OUT 1/2 levels can be changed.
1.
Open the mixer on the Home Screen. (→ Mixer Screen )
2.
Use to open the MAIN OUT 1/2 and SUB OUT 1/2 settings screen.
3.
Use to select a fader, and press .
106