Setup and Connection – Audio Connections19 Waldorf Q User’s Manual6. Then switch on the computer (if connected), the mixing console and finally the amplifier.7. To play the Q Rack you need a MIDI master keyboard. Please connect the Q Rack´s MIDIIn jack with the MIDI Out jack of the keyboard. Instead of this you can also connectthe Q Rack to a MIDI computer system. If you want to use a computer with a sequencer software, connect your computers MIDI Outjack to the Q’s MIDI In jack and the computers MIDI In jack to the Q’s MIDI Out jack . Tocheck the correct reception of MIDI Data, send any MIDI Events to the Q; the Peek LED lightsup on any incoming MIDI Message. If this is not the case please check the MIDI connection tothe Q.Audio ConnectionsThe Q provides three analog stereo audio outputs that can be used individually. All outputs areaffected by the setting of the System Volume control. If you choose to send only one mono orstereo signal to your mixer, use the Main Out jacks. You can connect each output stereophonicallyor monophonically as follows:☞ To connect an output stereophonically with two mono cables:• Connect the Left and Right jack with 1/4-inch mono plugs.☞ To connect an output stereophonically with one stereo cable:• Only connect the Left/Stereo jack of the output with a 1/4-inch stereo plug. Don’t plugany cable into the Right/Mono jack of the output pair.☞ To connect an output monophonically:• Only connect the Right/Mono jack of the output pair with a 1/4 inch mono plug. Don’tplug any cable into the Left/Stereo jack of the output pair.☞ To connect a headphone:• Connect the headphone with the Left/Stereo jack of the Main Out . If you do not choose to connect a mixing console, you can patch the Q’s output signals directlyto an amp. Use an input usually called Aux or Tape input. Before connecting and disconnecting the Q to a power supply source, turn your amp’svolume control all the way down to avoid damage due to on/off switching noise.The Q produces a high level output signal (see “Technical Data” on page 158). Please takecare that the connected playback device is suitable for the high level of an electronicinstrument. Never use the mic or phono input of the connected amp!Digital S/PDIF OutputIn addition to the 6 analog audio outputs, the Q is equipped with an S/PDIF type digital output (44.1 kHz, 16 Bit signal). You can use this output to connect the Q to a digital mixing console or torecord the sound signal on a DAT machine or hard disk recording system. The signal on the digitalout connector is always identical to the Main Out jacks .