TASCAM US-600 23Sound module/MD/CD etc.(digital connection)Connect the digital inputs and outputs ofthese types of devices to the unit’s DIGITALIN and OUT jacks on the rear panel.NOTEThis unit’s• DIGITAL IN and OUT jacks areRCA pin jacks.This unit can output either S/PDIF or AES/•EBU digital signals. Set the type of outputusing the control panel.CAUTIONTo use the DIGITAL IN jack, you must setthe Sample Clock Source to automatic inthe software control panel. This makes theconnected device into the clock masterIf Sample Clock Source is set to internal nosignal will be input through the DIGITALIN jack, and the DIGITAL OUT signal will belooped back inside the US-600 to the digitalinput. In this case, depending on the settingsof the computer software that you are using,the digital out signal could become looped,causing noise. We describe an example of thissituation and measures to prevent it belowExampleIn the DAW application, suppose that theinput of a track is assigned to the US-600DIGITAL IN and its output is assigned tothe US-600 DIGITAL OUT. In this case, thefollowing noise loop is created if the inputof that track is monitored: track output toUS-600 digital output to US-600 digitalinput to track input to track output, and soon.CountermeasureTo prevent this type of loop, turn inputmonitoring off in the DAW software orassign the input of that track to anythingbesides the US-600 digital input.Connecting keyboards, drummachines, sound modules,cassette/MD/CD players andother analog line level devicesConnect analog signal outputs from thesetypes of devices to the MIC/LINE IN 2standard TRS jack on the front panel and theMIC/LINE IN 3 and 4 standard TRS jacks onthe rear panel.Analog record playerThe output of an analog record playercannot be connected directly to the US-600.You must connect a phono amp betweenyour analog record player and the US-600.(Alternatively, you can connect it via an audioamp that has PHONO inputs.)Monitor speakersConnect monitor speakers (powered monitorspeakers or an amplifier and speakers) to theLINE OUT 1/2 jacks on the rear panel.HeadphonesConnect headphones to the standard stereoPHONES jack on the front panel.Connecting MIDI devicesConnect your sound module, keyboard/synthesizer, drum machine, or other MIDIdevice to the US-600 as shown below.If you want to monitor the sound of a soundmodule, keyboard/synthesizer or drummachine, connect the output of that deviceto this unit’s LINE IN. Alternatively, to monitorusing an external mixer, connect the outputsof that device and the LINE OUT jacks of thisunit to the external mixer inputs.You can use the MIDI IN/MIDI OUTconnectors on the rear panel to transmitand receive MTC (MIDI Time Code). Thisallows the MTC-compatible DAW (Digital5 – Connections