Hello guys, I've seen some bassists stick a microphone inside their bass, fitted with foam in the F-hole. This is setup is of course for live purposes, and from I what I can remember it sounded quite good blended with a pickup. Does any of you have any experiences from this? When talking about loudspeakers the tonecurve inside the speaker is identical to the outside sound except for a -12dB / octave tilt. Can this be true for the double bass as well?