stephane

Hi guys! Happy new year! I have a hum issue with my minimalistic bass recordong chain. P bass - bass VT pedal- audio interface When I connect my precision straight into my audio interface there is no hum at all. But when I add my recently purchased Tech 21 VT Bass pedal (not the DI version), it introduces some considerable hum on the bass. It deasappears when I touch the bridge or the strings ( but it s ennoying when recording). I tried feeding the pedal with a 9v battery but the hum remains. Looks like a ground situation generated by the pedal. But since I feed it with a 9v battery I don't understand. The hum appears even when the pedal switch is desangaged. Weird no? And when I take the pedal out of the equation there is no more ground noise. Any idea? I shecked all my cables.