Electric Guitar: point a cardioid microphone at the speaker diaphragm slightly off-center, from a distance of about 3 to 6 inches (8 to 15 cm). Switch the preattenuation pad in. Also consider using a room microphone.
Electric Bass: place the microphone in the same way as for the electric guitar. You may also use a DI box or the line output on the bass amp to add the direct signal to the bass amp track. If you use an unbalanced cable (TS jack cable), keep it short (7 feet / 2 m max.) in order to avoid picking up hum.
