RANE SL4 FOR SERATO SCRATCH LIVE • OPERATOR’S MANUAL 2.4.4
7
Kensington Security Slot
You can use a Kensington
security cable to attach the SL4
to an immovable object. Each
side of the SL4 has a Kensington
Security Slot. Refer to the instructions
provided with your Kensington Lock.
Playing Regular Vinyl and CDs
NOTE: the SL4 must be powered by
either USB port or the supplied external
power supply for the DECK THRUs to
work.
While Scratch Live is not running,
and the SL 4 is powered by the external
supply, the Deck Thrus on the SL4 will
always be on, allowing you to play regular
CDs and vinyl with your CD players or
turntables.
When the SL4 is powered by the
universal power supply, and then Scratch
Live is launched, the Deck Thrus are still
on. This allows a laptop to be connected
during a set (when using the Deck Thrus)
with no audio interruption.
If the SL4 is not powered by the
universal power supply when Scratch Live
is launched (USB connected), the Deck
Thrus will be off, but can be turned on in
Scratch Live.
To turn the Thrus off and on in Scratch
Live, click on the THRU button just above
each Virtual Deck for the respective
channel. This will change the state of the
channels to Thru Mode, sending audio
direct from the SL 4 inputs to your mixer.
See “Thru Mode” on page 16.
Turning the individual Thrus off and
on when Scratch Live is not running is
accomplished with the Rane SL4 Control
Panel.
See “Control Panel” on page
8
.
Power Switching
If external power is connected, the device
is self-powered and power is not used
from either USB port.
If external power is not connected,
the SL4 draws power from USB A port if
available and then from the USB B port
if there is no power from USB A. Power
switching is automatic and the SL4
operates uninterrupted as long as one
of the three possible power sources is
available.
If computers are added and removed
from the two USB ports for DJ hand-
over, it is best to have external power
connected to cover the case when both
USB ports are briefly disconnected.
External power is not required if users
ensure that at least one computer is
left connected at all times.
See “Two
Computer Connection” on page 31.
Power Supply
Connect the barrel connector of the power
supply to the 7.5 VDC jack on the SL4.
Plug the power supply into an AC outlet.
The universal power supply includes
different input plugs for the USA, Europe,
UK and Australia. The USA plug is
attached at the factory —you may need to
replace it in your country.
To remove a
plug, PUSH the
button while turning
the outer rim
counterclockwise.
To attach a plug,
rotate it to fit into
the supply and turn
clockwise until it
locks in place.
The power supply is regulated 7.5
volts DC, 1 amp, using a P6 type barrel
plug. Any substitute must meet these
specifications.
-(5.5mm) +(2.5mm)
USB Drivers
The SL4 is a dual personality device.
When using Serato Scratch Live,
proprietary Serato Audio Research
drivers are used in place of Rane ASIO
(Windows) and Core Audio (Mac) drivers.
The included Rane drivers are used when
Scratch Live is not running.
The SL4 has two USB ports, allowing
simultaneous connection of two
computers. Each port is completely
independent. It is possible to run Scratch
Live using proprietary drivers on one port
while running third party software using
ASIO or Core Audio on the other, in any
combination.
LOCK
LOCK
PUSH
OPEN
OPEN
Rane ASIO and Core Audio drivers
allow the SL4 to act as a 10-in 10-out
external USB sound card for use with
multiple third-party software applications
supporting Core Audio or ASIO. These
drivers are multi-client, meaning they
allow multiple applications on a computer
to share the device at the same time.
ASIO and Core Audio drivers are not
available on a machine while Scratch
Live is running. To use multi-client ASIO
or Core Audio drivers with a third-party
application while using Scratch Live,
you can connect two computers to
the SL4 with one running Scratch Live
and the other running ASIO or Core
Audio application(s). Connecting both
USB ports to the same machine is not
recommended.
The ASIO and Core Audio drivers are
included in the Scratch Live installer as an
option. See the instructions in “Installing
Scratch Live” on page 8.
ASIO (Windows)
The SL4 uses a low-latency, multi-client,
ASIO device driver to interface with
software applications other than Scratch
Live on Windows operating systems.
Multi-client ASIO allows different audio
software applications to simultaneously
stream audio to and from the SL4. If the
same playback channel is selected in
more than one application, the driver
mixes the audio from the different
applications before streaming it to the
device.
The driver Control Panel may be
launched from the Windows Control
Panel. Select
Start > Control Panel >
Rane SL4
.
Core Audio (Macintosh)
The SL4 uses a low-latency Core Audio
device driver to interface with software
applications other than Scratch Live
on Macintosh operating systems. Core
Audio allows different audio software
applications to simultaneously stream
audio to and from the SL4.
To launch the SL4 driver Control Panel,
open the System Preferences window.
Locate SL4 in the “Other” section and
click the SL4 icon.
