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Gainlab Audio DICTATOR GLA-TC2 Calibration Manual

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Summary of Contents for Gainlab Audio DICTATOR GLA-TC2

  • Page 2 OF THE OPERATIONS PROPERLY, PLEASE DO NOT ATTEMPT ANY MODIFICATIONS INSIDE THE DEVICE, AS YOU MAY BE EXPOSED TO THE RISK OF ELECTRIC SHOCK OR DAMAGE OF THE EQUIPMENT. GAINLAB AUDIO WILL NOT BE REIALBLE FOR ANY PERSONAL INJURY RESULTING FROM IMPROPER HANDLING! REQUIED TOOLS...

  • Page 3: Remove The Upper Cover

    REMOVE THE UPPER COVER...
  • Page 6 Version: GLATC2CalibrationManualV2.1 STEP - PREPARATION The unit shall be disconected from mains! Check the VU meters on the front panel. Adjust the VU meter with the front panel screw to make it show the -20dB position as close as you can. Now you can connect the unit to mains.

  • Page 7: Starting Point

    STEP - BALANCING Starting point: Input signal : +4dBu 1kHz sinewave, on both channels Switch positions: Mode-Bypass, Meter- Output meter, Threshold MAX (left)
  • Page 8 3.1 Bypass measurement (Left channel) Switch Mode to Bypass. Measurement process: Measure voltage between TP1 and TP2 points Adjust: VR3 Target: to see 0V on volt meter Error margin: 0.1V 3.2 Hicomp measurement (Left channel) Switch Mode to HiComp. Measurement process: Measure voltage between TP1 and TP2 points Adjust: VR9 Target: to see 0V on volt meter...
  • Page 9 Now go back to 3.1 and check if in Bypass mode you still measure 0V in between TP1 and TP2. Most likely it will stay as you set up earlier. Repeat 3.1 and 3.2 if needed. 3.3 Bypass measurement (Right channel) Switch Mode to Bypass.
  • Page 10 Now go back to 3.3 and check if in Bypass mode you still measure 0V in between TP4 and TP5. Most likely it will stay as you set up earlier. Repeat 3.3 and 3.4 if needed. STEP - LEVELLING Starting point: Input signal: +0dBu 1kHz sinewave, on both channels Mode-HiComp, Meter- Output meter, Threshold Switch positions:...
  • Page 11 STEP - SC LEVELLING Starting pont: Input signal : +0dBu 1kHz sinewave, on both channels Threshold 0dB, mode – HiComp, UNLINK 5.1 step – Stage One Measurement process: Stage ONE left Measure: between TP8 (gnd point on volt meter) and TP15 Adjust: VR5 Target: measure +1.1V on a volt meter Now, turn the VR7 counterclockwise until the end point (appx.
  • Page 12 Measure: between TP8 and TP15 Adjust: VR5 Target: measure +1.4V on a volt meter Measurement process: Stage ONE right Measure: between TP8 (gnd point on volt meter) and TP14 Adjust: VR6 Target: measure +1.1V on a volt meter Now, turn the VR8 counterclockwise until the end point (appx. 6 turnes) Measure: between TP8 and TP14 Adjust: VR6 Target: measure +1.4V on a volt meter...
  • Page 13 5.2 step – Raw tuning Turn the Threshold to -9dB position. Switch to UNLINK. Adjust: VR7 Measure: -3dBu on the left output Error margin: +-0.1dBu Adjust: VR8 Measure: -3dBu on the right output Error margin: +-0.1dBu...
  • Page 14 5.3 step – Fine tuning Turn the Threshold to -9dB position. Switch to LINK. Adjust: VR7 Measure: -3dBu on the left output Error margin: +-0.1dBu Adjust: VR8 Measure: -3dBu on the right output Error margin: +-0.1dBu...
  • Page 15 Switch to UNLINK. Adjust: VR5 Measure: -3dBu on the left output Error margin: +-0.1dBu Adjust: VR6 Measure: -3dBu on the right output Error margin: +-0.1dBu Now keep watching the outputs and switch back and forward between LINK and UNLINK mode. If there is a difference in the output signal which is greater than 0.1dBu then repeat the 5.3 step.
  • Page 16 THAT’S IT! YOU ARE DONE NOW. YOU CAN LISTEN TO YOUR FAVORITE TRACK THROUGH THE UNIT FOR CHECKING SONICAL PERFORMANCE. If you have further questions or stucked somewhere in the procedure then please reach GAINLAB AUDIO through support@gainlabaudio.com...
  • Page 17 THE TECHNICAL PARAMETERS OF THE VACUUM TUBES CAN CHANGE SIGNIFICANTLY IN THE FIRST 24-48 HOURS. IT IS RECOMMENDED TO REPEAT THE CALIBRATION PROCESS AFTER THIS “BURN- IN” PERIOD. • THE VACUUM TUBES PROVIDED BY GAINLAB AUDIO HAVE ALREADY UNDERGONE THIS “BURN-IN” PROCESS.
  • Page 18 GAINLAB AUDIO 2023. www.gainlabaudio.com...

This manual is also suitable for:

Dictator gla-tc1