Pyle Pro PD3000A - System Setup Options Continued; Dual Mono Audio Modes; Source Selection

6.3 DUAL MONO
DUAL MONO: If your amplifier/decoder has Dolby
Digital output, you may select stereo, left mono, right
mono, or mixed mono mode for your amplifier decoder.
DUAL MONO
7. SOURCE
SOURCE: This system will automatically read the
USB if there is no playble dics loaded.
Use the Source menu to select to read
from either disc and USB directory.
I SOURCE
SYSTEM SETUP