How to calibrate?
How to calibrate?
Submitted by VandyMan on Mon, 2011-02-28 13:46I need to re-calibrate my DAC-1 USB. I lent it to a friend and he changed the calibration because he thought it was needed to boost the volume. I'm willing to buy a voltmeter, but I don't know how to do the calirbation. Thanks.
Directions for calibrating
Directions for calibrating the DAC1 USB:
WARNING: This procedure involves playing a test tone that should not be played through your speakers.
1. Disconnect all analog cables from the DAC1 USB.
2. Download this test tone (1 kHz sine wave @ -20 dBFS):
http://www.benchmarkmedia.com/audio-test-files/1k%204416%20-20.wav
3. Play the test-tone through the USB input of the DAC1 USB. Make sure all computer/software volumes are set to 100%.
4. Make sure the rear-panel ‘output mode’ switch is set to ‘Calibrated’ (the upper most position)
5. Measure the AC voltage between the center and ring of one of the RCA outputs.
6. Adjust the corresponding calibration trim-pot until the voltage measures 0.2 VAC.
7. Repeat steps 5 and 6 for the other RCA output. Your DAC1 USB is now calibrated.
8. Delete the test-tone from your computer (or at least remove it from your media player library) to avoid accidentally playing through your speakers it in the future
9. After calibrating, if you are connecting the DAC1 USB directly to an amplifier and/or active monitors, be sure to set the rear-panel ‘output mode’ switch in the ‘Variable’ position (the bottom position).
same for dac1 non usb
Hi, is this the same for the non usb version?
thanks
Yes, it applies to all
Yes, it applies to all DAC1's.
Best,
Elias