9. INTEGRATING EXTERNAL DEVICES
The  S4  provides  you  with  the  possibility  to  integrate  external  audio  devices.  Besides  integrating
microphones, you  can also connect  devices like turntables  and CD  players. This enables  you to
mix in external audio from vinyl and CDs. In conjunction with turntables and CD players you can
enable  TRAKTOR's  Scratch  function  and  control  the  Decks  using  timecode  vinyls  or  timecode
CDs, which you can purchase separately.
In this section you learn how to integrate external audio devices and how to setup TRAKTOR for
using the Scratch function:
• For integrating a microphone, refer to Integrating Microphone.
• For integrating turntables into your setup, refer to Integrating Turntable.
• For integrating CD players into your setup, refer to Integrating CD Players.
• For configuring your S4 system connected with turntables or CD players to be used with TRAK-
TOR's Scratch function, refer to Enabling Scratch Function in TRAKTOR.
9.1. Integrating Microphone
The Mixer channels C and D on the S4 allow you to integrate a microphone. On the rear panel on
the S4 you can connect a micrphone using a 1.8" connector to be inserted into Mixer channel C.
On the  front panel you  can connect a  microphone using  an XLR connector  to be integrated  into
Mixer channel D.
Connecting Microphone
To add a microphone to your S4 system:
1. Switch off the S4.
2. Connect the microphone to the input MIC C on the rear panel, or to the input MIC D on the
front panel on the S4, corresponding to its connector.
Enabling Microphone Pre-Amplifier for Mixer Channel
For the Mixer channel to receive microphone signal, you need to enable the microphone pre-am-
plifier stage for the Mixer channel:
1. Switch on the S4.
2. Press and hold SHIFT on the S4 Deck to access the secondary S4 functions.
3. While holding SHIFT, press the EXT button on the corresponding Mixer channel.
The MIC C or MIC D LED lights up indicating the microphone pre-amplifier is enabled for the
Mixer channel.
Switching the Deck to Live Input
To switch the S4 Deck to Live input:
1. Press the EXT button on the Mixer channel you want to insert the external audio from.
Integrating External Devices
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