To remove the protection and enable calibration

1) Depress [select] and [Page] to access the “Select Page”
2) Select [Setup]
3) Calibration enable is in the Advanced Setup, to access depress [Select] and [->] keys to access Adv Menu 01.
4) Depress the [->] key to access Adv Menu 02:- Calibration Lock
5) Use the [^] and [v] keys to select Unlock All
6) Use the [Page] to exit setup, the TFT display will now show “Calibration” in the top Right.

Input Trim:

Each input has a -10db to +20dB input trim in 1dB steps.

1. Enable Calibration as above
2. Select the Meters page
3. Enable the input Selection [I/P Sel], this is a user defined key
4. Disable [Sum]
5. Depress and hold the selected input, a Red Box in the lower right will display the
6. Adjust as required whilst holding selected input key depressed
7. Repeat as required for all inputs
8. Disable Calibration

Speaker Trim:

Each speaker output has a +/-4dB trim in 0.5dB steps. Select the Meters page then enable speaker Solo using the [Solo] key, by default this is the [Ctrl/Solo] key.

1. Enable Calibration
2. Connect input to Pink Noise at reference level (-20dBFS 0dBm nominal)
3. Enable the “Solo” page using the [Solo] key (Note Solo is a user function), Select the required output and speaker, on the Penta version you can step through the speaker banks using the [Solo] key.
4. Solo the individual speaker, hold the speaker key depressed, a Red Box in lower right will display the speaker trim
5. Adjust as required whilst holding speaker key depressed.
6. Repeat as required for all speakers
7. Disable Calibration

Mono Trim:

When Mono is enabled the output has a +/-4dB trim in 0.5dB steps.

1. Enable Calibration
2. Select the Meters page
3. Hold the [Mono] key depressed (Mono is a User key), a Green Box in the lower right will display the Mono trim
4. Adjust as required whilst holding [Mono] Depressed
5. Disable Calibration