This place is amazing. Got our manual in a few hours. Print quality is excellent. Even the manufacturer didn't have this manual. The price was excellent. How many more stars can I give them? More than satisfied.
This was a very hard to find manual. The unit is long discontinued and Pioneer doesn't retain every manual for every model. Thanks owner's-manual.com!
Text excerpt from page 4 (click to view)
OPERATION EXAMPLE ONE Connect instruments, microphone, and signal source (cassette player, CD player etc.) to their proper input as shown in the diagram below. Adjust the levels of each channel for a desired balance of signals. Since the MX56 has no master level, you will need to be aware of the setting of your amplifier. Check each instrument/mic/signal source level individually first for proper level, then adjust them for a desired mix.
EXAMPLE TWO - Mini kareoke mixer To use as a kareoke or sing-along mixer, connect the microphone and tape player (or CD player) as shown. Connect the output to a tuner/amplifer, or other amplifier and speaker combination.