Operator`s manual
RANE SL3 FOR SERATO SCRATCH LIVE • OPERATOR’S MANUAL 2.5.0
6
Connect your CD players or turntables to 
the DECK INPUTS on the Rane SL3. If you 
use turntables, connect their ground wires 
to the ground terminal on either the SL3 or 
your mixer
*Optional Step: Connect an additional 
output (such as AUX OUT) from your 
mixer to the AUX INPUTS on the SL3 
to record your set in Scratch Live. See 
“Recording” on page 29.
2. Input Level Selection
Set each input to the correct input level 
using the dip switches. Set the switches 
UP for Phono (turntables) or DOWN for 
Line (CD players).
3. Outputs
Connect the OUTPUTS of the SL3 to line 
inputs on your mixer. Connect the AUX 
output to an additional line input or AUX 
input on your mixer to output the sample 
player. See “SP-6 Sample Player” on 
page 20.
DIP SWITCHES
AUX
LEFT
DECK
RIGHT
DECK
4. Connect the SL3 to your computer
Using the provided USB cable, connect 
your SL3 to an available USB 2.0 port on 
your computer. 
  Make sure you connect it directly to 
your computer and not through a hub or 
splitter.
Turntable Setup
1. Set the tone arms to the specic 
recommendations of the cartridge 
used, so that the needle never leaves 
the record, but not heavy enough that 
it heats up signicantly. Both produce 
poor tracking.
2. Grounding is extremely important when 
using Scratch Live. Make sure you have 
good connections from the ground wires 
of your turntables to the grounding 
post of the SL3 or your mixer. If you 
do not ground your turntables properly, 
the control signal will be noisy and the 
tracking of the record position will be 
erratic.
3. Ensure the SL3 is set to receive a phono 
level signal – See step 2 of connecting 
the SL3.
CD Player Setup
Disable all built-in effects on the CD 
player, including keylock/master tempo.
  Ensure the SL3 is set to receive a LINE 
level signal – See step 2 of connecting 
the SL3.
Kensington Security Slot
You can use a Kensington 
security cable to attach the SL3 
to an immovable object. Each 
side of the SL3 has a Kensington 
Security Slot. Refer to the instructions 
provided with your Kensington Lock.
Getting 
Started
System Overview
The Scratch Live control records and 
CDs are pressed with an audible tone 
specically developed for controlling the 
Scratch Live software application.
  The SL3 interface converts the control 
signal coming from each deck into digital 
audio, to be sent via USB to the Scratch 
Live software, which decodes that signal 
into a stream of information based on 
what the DJ is doing with the control disc. 
A virtual ‘deck’ replicates the movements 
of the control disc. Audio les loaded 
onto the Virtual Decks are then played 
back through the outputs of the hardware, 
with any manipulation of the control discs 
reproduced on the audio, effectively 
emulating vinyl control of the les loaded 
in software.
Connecting the SL3
To integrate an SL3 unit into a typical DJ 
setup, connect it to your turntables (or CD 
players) and mixer as follows:
1. Inputs
*
RIGHT
DECK










