- Press the MASTER button.
- Select Utilities.
- Select Recalibration.
- Use the Tones utility in Master to play a reference tone (-20dB) to check levels against your mixer.
Source: E4XT Ultra — e-mu-eos-4-0-manual (manual)
Symptoms this guide addresses
Source: E4XT Ultra — e-mu-eos-4-0-manual (manual)