The Speaker Utilities tab on the Monitor Controller window is where Apollo X speakers can be soloed muted, and trimmed. This window allows you to calibrate speakers for any Apollo X system and monitoring mode, from Stereo to 7.1.6. The Monitor knob can be calibrated for absolute dB SPL (volume) values and the output channel level offsets can be individually trimmed.
Tip: See Calibrating Monitors for detailed instructions on how to calibrate your system using the functions in this popover.
To open the Monitor Calibration popover, click the the Monitor Controller button in the Monitor Column, or the button next to the MONITOR MODE menu in Console Settings > Hardware.
Offset trim controls for each output channel in the active surround format are dynamically displayed in the popover, on the Speaker Utilities tab.
Monitor Level Display
These options determine the type of dB units displayed beneath the Monitor knob within Console. Absolute SPL (Sound Pressure Level, displayed as dB SPL) or relative dBFS (digital full scale, displayed as dB) labels can be shown.
Note: When the dB SPL option is selected, displayed SPL values are accurate only if the surround speaker system is properly calibrated.
Set dB SPL
The SET dB SPL button is used to enter the calibrated dB SPL value (volume level) of the Monitor knob after the speaker offset trims are adjusted during calibration.
Note: The SET db SPL button applies to the dB SPL function only. When the SET function is used, the Show mode is automatically set to dB SPL.
Channel Offset Trims
Each channel output level can be offset by ±10 dB in continuous increments of 0.1 dB. Click the TRIM button to set offsets. Offset trims for each hardware device and surround mode are saved within user preferences on the computer system.
Trim Notes
- The L and R offset trims adjust the main monitor L/R outputs only and do not affect ALT monitor outputs. Stereo ALT offsets can be adjusted with the ALT TRIM control in the Monitor Column.
- Offset trims are applied after metering, so adjustments to speaker trims are heard, but not reflected in UAD Console meters.