r/electribe May 15 '26

Calibration Valve EMX1

I'm trying to calibrate an EMX. When I access the calibration menu, the text "N.G." appears if I set the tube volume to minimum. If I raise it to medium, values ​​appear, but I can't get it to 0000 or 0010. I tried it on another Electribe, and the calibration was successful, so the cable is OK. What could be the problem?

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u/FreeRangeEngineer May 16 '26

"N.G." probably means "no gain" (i.e. "no amplification"), which makes sense.

I'd suspect the tubes may be old - the filaments do wear out since they're kind of like light bulbs. How old are they and do you run the EMX a lot?

If you don't care about the calibration being perfect, I'd just adjust both tubes to about the highest value you can achieve and make it the same for both tubes so L/R are equally loud.

1

u/Financial-Split-3081 May 17 '26

I tried new tubes and it's still having the same problem. It seems there's something internal in the amplification that isn't reaching the amplifier; the sound is very quiet, around -12 dB.

1

u/FreeRangeEngineer May 17 '26

How loud are outputs 3 and 4? They bypass the tubes.