TASCAM DR-40 47Point the mics at the sound source and place the unit in astable location where there is little vibration.MicrophonesNOTEThe setting of left-right channels is disabled if externalmicrophones are connected to the EXT MIC/LINE IN jack.Recording an external device (LINE IN)Use stereo plug cables to connect to the output of an externalaudio device.Other audio equipmentor external sound sourceCAUTIONReduce the output level of the external audio device if the•input sound is distorted even when reducing the input gainlevel on the unit.When an external audio device with a fixed output line•level is connected, it would be impossible to control thegain level appropriately because of excessively large inputsignals. In such cases, use the headphone jack or otherlevel-controllable output for connection to the unit.4 – Recording