SOUND DEVICES SL-2 Dual SuperSlot Wireless Module User Guide
- June 4, 2024
- SOUND DEVICES
Table of Contents
- Legal Notices
- Manual Conventions
- Welcome to the SL-2
- Panel Views
- Attaching the SL-2
- Removing the SL-2
- Inserting Receivers in the SL-2
- Specifications
- References
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
- 4 Phillips Screwdriver (not included)
- 4 Phillips Screwdriver (not included)
- 4 Phillips Screwdriver (not included)
- 4 Phillips Screwdriver (not included)
SL-2 Dual SuperSlot Wireless Module
FOR 8-SERIES MIXER-RECORDERS
User Guide
Legal Notices
Product specifications and features are subject to change without prior
notification.
Copyright© 2022 Sound Devices, LLC. All rights reserved.
This product is subject to the terms and conditions of a software license
agreement provided with the product and may be used in accordance with the
license agreement. This document is protected under copyright law. An
authorized licensee of this product may reproduce this publication for the
licensee’s own personal use. This document may not be reproduced or
distributed, in whole or in part, for commercial purposes, such as selling
copies or providing educational services or support.
This document is supplied as a technical guide. Special care has been taken in
preparing the information for publication; however, since product
specifications are subject to change, this document might contain omissions
and technical or typographical inaccuracies. Sound Devices, LLC does not
accept responsibility for any losses due to the user of this guide.
Trademarks
The “wave” logo is a registered trademark; SuperSlot and Wave Agent are
trademarks of Sound Devices, LLC. Dante is a registered trademark of Audinate.
Windows and Microsoft Excel are registered trademarks of Microsoft Corporation
in the U.S. and other countries. All other trademarks herein are the property
of their respective owners.
WEEE Statement
If you wish to discard a Sound Devices product in Europe, contact
Sound devises UK Service Center: +44 (0)1494 511711 for further information.
Read and fully understand this manual before operation.
Manual Conventions
| SYMBOL | DESCRIPTION |
|---|---|
| > | This symbol is used to show the order in which you select menu commands and |
sub-options, such as: Main Menu > Outputs indicates you press the Menu button
for the Main Menu, then scroll to and select Outputs by pushing the Knob.
[ ]| This symbol is used to convey selectable menu items.
| This symbol is used to convey factory default settings.
+| A plus sign is used to show button or keystroke combinations. For instance,
Ctrl+V means to hold the Control key down and press the V key simultaneously.
This also applies to other controls, such as switches and knobs. For instance,
MIC+HP turn means to slide and hold the MIC/TONE switch left while turning the
Headphone (HP) knob. METERS+SELECT means to hold the METERS button down as you
press the SELECT knob.
Note| A note provides recommendations and important related information.
The text for notes appears italicized.
| A cautionary warning about a specific action that could cause harm to you, the device, or cause you to lose data. Follow the guidelines in this document or on the unit itself when handling electrical equipment. The text for cautionary notes also appears italicized and bold in a different color.
SL-2 User Guide | Rev 07/2022
This document is distributed by Sound Devices, LLC in online electronic (PDF)
format only. Published in the USA.
This table provides the revision history and cross-reference links to
“what’s new” in this guide.
| DATE | DESCRIPTION |
|---|---|
| 20-Jul | Initial Release |
| 20-Sep | Additional Disassembly instructions |
| 21-Dec | RF Overload LED change, Shure and Sony added to supported SuperSlot |
receivers.
22-Jul| Support of Sound Devices A20-RX. RF Filtering up to 1525 MHz
Parts List
- SL-2 Dual SuperSlot Wireless Module
- SL-2 Product Sheet with DOC
- Sound devises Product Catalog
- Promo Sticker (Black)
- Promo Sticker (White)
- 2x Black Rubber Slot Protectors
- 2x Rear Keyhole Pegs
- 6x Screw 6mm STEEL M3 low-profile (only needed for Scorpio)
- SL-2 Front Bracket for Scorpio (only needed for Scorpio)
- SL-2 Rear Bracket for Scorpio (only needed for Scorpio)
- 2 mm Allen Wrench Hex 2-1/16” L
Welcome to the SL-2
Streamline your bag with the SL-2 Dual SuperSlot Wireless Module. This two-
slot-in wireless receiver integration system easily mounts to the top panel of
any 8-Series mixer-recorder. UniSlot and SuperSlot™ wireless receivers from a
variety of manufacturers are accepted, including Sound Devices, Audio Ltd,
Lectrosonics, Wisycom, and Sennheiser. The SuperSlot protocol supports up to
four channels of wireless audio per slot.
An 8-Series mixer-recorder supplies power to the SL-2 and slotted-in receivers
– no external DC connector is needed. Analog or digital audio is sent from the
receivers into the mixer-recorder via the expansion port, reducing messy
cabling for power and audio connectivity. The SL-2 offers antenna distribution
to slot-in receivers, spreading out the placement of antennas for better RF
performance. The rear panel of the SL-2 is equipped with two TA3 connectors
for an additional four inputs of AES3 audio and two 4-pin Hirose DC Outputs,
each supplying up to 500 mA for powering additional equipment.
- Compatible with the 833, 888, and the Scorpio.
- Accepts two UniSlot or SuperSlot wireless receivers from Sound Devices, Audio Ltd, Lectrosonics, Sennheiser, Shure, Sony, and Wisycom.
- Built-in antenna distribution with antenna powering for active antennas or boosters.
- Supports remote control of third-party smart antennas.
- Two auxiliary MCX antenna ports for connecting other receivers or RF distribution.
- Two TA3 AES3 inputs for an additional 4 channels of digital audio.
- Two DC Outputs via Hirose 4-pin connectors, each supplying up to 500 mA.
- Powers via an 8-Series mixer-recorder.
- Accepts either analog or digital audio from slot-in receivers.
- Ability to set and monitor multiple functions of a SuperSlot-compatible receiver from the 8-Series mixer-recorder.
- RF Scan with a visual representation of the RF spectrum.
- Monitor transmitter battery, receiver audio, and RF levels.
- Rugged, lightweight, and compact design.
- Mounts to the top of any 8-Series mixer-recorder.
- Same width as the 833.
We are honored to be part of your kit.
Sincerely,
Sound Devices
About this User Guide
This SL-2 User Guide covers hardware explanations, device specifications,
instructions for attaching the SL-2 to your 8-Series Mixer-Recorder, and the
SL-2 Declaration of Conformity. Functionality-supported receivers and details
of using the 8-Series user interface to control SuperSlot receivers is covered
in your respective 8-Series Mixer-Recorder’s User Guide.
Panel Views
ANTENNA A & B SMA CONNECTORS Connects antenna to the SL-2. Both SMA
antenna connectors can provide 12 V bias power up to 500 mA via a menu option.
RF frequency range covers 470 – 1525 MHz. RF Filtering is available in the
menus.
RX SLOT A & B Accepts Slot-in Unislot or SuperSlot receivers.
Connects via a DB-25 connector. SL-2 automatically locks the receiver in
place. No screws are necessary to secure the receiver in the SL-2 slots. Cover
empty slots with the included Rubber Slot Protector when not in use.
SLOT A & B ANTENNA A LEAD Distributes Antenna A to the left SMA connector
of your receiver.
SLOT A & B ANTENNA B LEAD Distributes Antenna B to the right SMA
connector of your receiver.
AES INPUTS 1 – 4 Accepts up to four AES3 signals via the TA3-M input
connectors. Each connector accepts two channels of AES3. Incoming signal can
be routed to 8-Series Mixer-Recorder channels via the menus. Input type: AES3,
balanced, TA3F connectors, Impedance: 110 ohms, Sensitivity: 200 mV or higher
accepted
Wiring: pin 1 = ground; pin 2 = +; pin 3 = –.
DC OUTPUTS 1 & 2 Each Hirose 4-pin male connector provides 6-18 V DC at
500 mA [pin-4=+, pin-1=-]. Useful for providing power to other peripherals
such as RF equipment. Power can be defeated in the menus.
ANTENNA A & B RF OVERLOAD LEDS Each antenna input on the front panel of
the SL-2 has an associated LED that displays incoming RF level status.
Red = approaching RF overload threshold of the SL-2
Orange = approaching overload threshold of digital wireless systems
Off = no overload
To disable the LEDs go to SL-2 Options>Antenna LEDs and set it to Off.
A & B AUX ANTENNA MCX CONNECTORS Distributes Antenna A and B to external receivers.
RECEIVER QUICK RELEASE LEVER & SAFETY CATCH To eject slotted-in
receivers, press in on the Safety Catch with one finger then push the lever
down. Continue holding the lever down, then pull the receivers out of the slot
with your other hand.
8-SERIES EXPANSION CONNECTOR Proprietary connector for attaching the SL-2
to the 8-Series. Provides all power, data, and audio signal needed for SL-2
and 8-Series functionality.
MOUNTING HOOKS These hooks are used to attach your 8-Series Mixer-
Recorder. See Attached the SL-2 for more details.
Attaching the SL-2
Power down the mixer-recorder and remove all power sources.
Proper and complete assembly of the SL-2 is required for optimal RF emission
performance. After removing the SL-2, it is important that you replace all
original screws on the 8-Series mixer recorder.
See assembly instructions for the 8-Series model for which you will be
attaching the SL-2.
833 & 888
The following instructions describe attaching the SL-2 to the 833 and 888. For
this assembly, you will need:
- 833 or 888 Mixer-Recorder (not included)
- SL-2
- 2x Rear Keyhole Pegs
- 2 mm Allen Wrench Hex 2-1/16” L
-
4 Phillips Screwdriver (not included)
STEP 1 Remove the magnetic expansion port cover on the top of the 833/888
by prying up gently to break the magnetic connection. Attach the connector
cover to the bottom of the 833/888 for safekeeping.
STEP 2 Using a #4 Phillips Screwdriver, remove the two
black Phillips screws from the Scorpio top panel as shown in the image below.
Keep these screws in a safe place as they need to be re-installed if the SL-2
is removed from the 833/888.
STEP 3 Using
the provided 2 mm Allen Wrench, screw in two Rear Keyhole Pegs into the
threads where you removed the screws in Step 2.
STEP 4 Align the SL-2’s bottom panel hooks with the Rear
Keyhole Pegs on the 833/888. The SL-2 should be tilted with the front panel
slightly higher than the rear. Take care not to bump the SL-2 expansion
connector against the 833/888 top panel. Once the SL-2’s Bottom Panel hooks
and Rear Keyhole Peg’s machined grooves are aligned, slide the SL-2 towards
the front panel.
On an 833, the back of the silver mount screws will rest against this
indent.
On an 888, the silver mount screws
will fit inside this hole. STEP 5 Make sure that the SL-2 Expansion Connector mates with the 833/888 Expansion Port. Then gently press down on the SL-2 to fully seat the pins of the connector.
STEP 6 Using the supplied 2 mm
Allen Wrench, secure the SL-2 to the 833/888 top panel with the two captive
screws as shown in the image below. 
SCORPIO
The following instructions describe attaching the SL-2 to the Scorpio.
For this assembly you will need:- Scorpio Mixer-Recorder (not included)
- SL-2
- 2x Rear Keyhole Pegs
- 6x Screw 6 mm STEEL M3 low-profile
- Scorpio Front Bracket
- SL-2 Rear Bracket
- 2 mm Allen Wrench Hex 2-1/16” L
-
4 Phillips Screwdriver (not included)
STEP 1 Remove the magnetic expansion port cover on the top of the Scorpio
by prying up gently to break the magnetic connection. Attach the connector
cover to the bottom of the Scorpio for safekeeping.
STEP 2 Using a #4 Phillips Screwdriver, remove the black
Phillips screw from the Scorpio top panel as shown in the image below. Keep
these screws in a safe place as they need to be re-installed if the SL-2 is
removed from the Scorpio.
STEP 3 Using the provided 2
mm, Allen Wrench, screw in two Rear Keyhole Pegs into the threads where you
removed the screws in Step 2.
STEP 4 Position
the Scorpio Front Bracket on the top panel of the Scorpio as shown in the
image below. Secure the Scorpio Front Bracket with two 6 mm screws using the
supplied 2 mm Allen Wrench. 
STEP 5 Position
the SL-2 Rear Bracket on the rear panel of the SL-2 as shown in the image
below. Secure the SL-2 Rear Bracket with two 6 mm screws using the supplied 2
mm Allen Wrench.
STEP 6 Align the SL-2 Rear
Bracket and the Rear Keyhole Peg on the Scorpio. The SL-2 should be tilted
with the front panel slightly higher than the rear. Take care not to bump the
SL-2 Expansion Connector against the Scorpio top panel. Lower the rear of the
SL-2 Rear Bracket onto the Rear Keyhole Peg on the Scorpio. Once the SL-2 Rear
Bracket and Rear Keyhole Peg’s machined grooves are aligned, slide the SL-2
towards the front panel.
STEP 7 Make sure that the
SL-2 Expansion Connector mates with the Scorpio Expansion Port. Then gently
press down on the SL-2 to fully seat the pins of the connector.
STEP 8 Secure the SL-2 to the Scorpio Front Bracket with two 6 mm screws
using the supplied 2 mm Allen Wrench.
Removing the SL-2
Power down the mixer-recorder and remove all power sources.
Proper and complete disassembly of the SL-2 is required for optimal
performance. After removing the SL-2, it is important that you replace all
original screws on the 8-Series mixer recorder.
833 & 888
The following instructions describe removing the SL-2 from the 833 and 888.
For this assembly, you will need:
- 833 or 888 Mixer-Recorder (not included)
- SL-2
- 2x Rear Keyhole Pegs
- 2 mm Allen Wrench Hex 2-1/16” L
-
4 Phillips Screwdriver (not included)
STEP 1 Remove any receivers, antennas, and cables connected to the SL-2.
Locate the two holes shown in the photo above.
STEP 2 Insert the Allen wrench into these holes, visually
confirming that the wrench is in contact with the safety screws inside the
SL-2. Turn the wrench counterclockwise to loosen the screws. Remove the screws
and set them aside.
STEP 3 Gently raise the
SL-2 and slide slightly forward to disconnect from the mixer-recorder.
STEP 4 Remove the two silver mount screws using the
provided Allen wrench.
STEP 5 Replace the
originally provided rear black screws near the Sound Devices logo using the #4
Phillips head screwdriver. STEP 6 Replace the top plate.
SCORPIO
The following instructions describe removing the SL-2 from the Scorpio. For this assembly you will need:- Scorpio Mixer-Recorder (not included)
- SL-2
- 2x Rear Keyhole Pegs
- 6x Screw 6 mm STEEL M3 low-profile
- Scorpio Front Bracket
- SL-2 Rear Bracket
- 2 mm Allen Wrench Hex 2-1/16” L
-
4 Phillips Screwdriver (not included)
STEP 1 Remove any receivers, antennas, and cables connected to the SL-2.
Remove the two small black screws securing the SL-2 to the safety
mount.
STEP 2 Gently raise the SL-2 and
slide it towards the rear of the unit. Lift up and over the silver mounting
screw circled in red.
STEP 3 Remove the two
small black screws.
STEP 4 Remove the safety
mount from the top panel of Scorpio.
STEP 5
If desired, remove the additional Scorpio mounting hardware from the
SL-2.
STEP 6 Perform steps 4-6 of
833/888 disassembly on Scorpio.
Inserting Receivers in the SL-2
It is important to turn off power to the SL-2 slot prior to removing and inserting receivers to avoid potential hardware damage. Slot power can be turned off in the Menu >System>Expansion Port menu, Menu>SuperSlot>Options>Slot Power, or by turning the 8-Series Mixer-Recorder Off.
STEP 1 Remove the Uni Slot adapter plate from your receiver. This part
can be called different things depending on the manufacturer of your wireless
receiver. Wisycom refers to this part as a Flange and Lectrosonics refers to
it as the blue bezel. The SL-2 was designed with a locking mechanism that
negates the use of a plate. This also reduces overall weight and allows for
quick installation or removal of receivers.
STEP 2 Remove the Rubber Slot Protector from the SL-2 slot and keep it in
a safe place for future use. Reinsert the Rubber Slot Protector when removing
the receiver.
STEP 3 Insert the receiver with the DSub connector down to mate with the
SL-2 DSub connector.
STEP 4 Press in on the Saftey Catch and push the Receiver Quick Release
Lever down. Continue to hold down the lever while firmly pushing the Rx into
the slot. Then release the lever.
Removing Receivers from the SL-2
Press in on the SL-2 Safety Catch and push the Receiver Quick Release Lever
down. Continue to hold down the lever while sliding the receiver out of the
slot. Release the lever.
Replace the Rubber Slot Protector to prevent dust and debris.
Specifications
Specifications are subject to change without prior notice.
For the latest information available on all Sound Devices products, visit our
website: www.sounddevices.com.
POWERING
All power supplied by host 8-Series machine
SL-2 idle power draw 1.3 W (without receivers or antenna)
ANTENNA IMPEDANCE
50 ohms
ANTENNA POWERING
12 V at 200 mA, menu selectable on/off
Serial remote control, Wisycom-compatible for ADFA and LFA powered antenna
etc.
ANTENNA PRE-SELECT FILTERS
Menu selectable:
Wideband/bypass (low pass filter, 1.7 GHz upper cut-off)
470-614 MHz
542-694 MHz
606-770 MHz
770-960 MHz
1240-1525 MHz
INPUT RF ATTENUATORS
0 to -18 dB, in 6 dB steps, menu selectable
RF OUTPUTS
Auxiliary Antenna Outputs for an additional receiver
DC OUTPUTS 1-2
500 mA max (each), 6-18 VDC passed through from the host 8-series machine,
depending on the power source.
Hirose 4-pin connector: pin 4 = +, pin 1 = ground.
AES INPUTS
Two pairs for a total of four channels, AES-3 balanced, 110 ohms,
TA-3 connectors
DIMENSIONS
H x W x D
4.5 cm x 21.3 cm x 13.1 cm;
(1.8 in x 8.4 in 5.1 in)
WEIGHT
1.35 lbs (unpackaged)
0.61 kg (unpackaged)
Declaration of Conformity
Manufacturer’s Name: Sound Devices, LLC
Manufacturer’s Address: E7556 State Road 23 and 33/Reedsburg, WI 53959
USA
Declares under sole responsibility that the product as delivered
Product Name: SL-2
Model Number: SL-2
Description: Dual SuperSlot Wireless Module
Product Options: This declaration covers all options of the above
product.
is in conformity with the essential requirements of the following relevant
Union harmonization legislation:
Radio Equipment Directive (RED) 2014/53/EU
Low Voltage Directive 2014/35/EU
RoHS Directive 2011/65/EU
The following harmonized standards and/or normative documents were applied:
Safety EN 62368-1:2014
EMC EN 301 489-9 v2.1.1 2019/EN 301 489-1 v2.2.0 (Draft)
This Declaration of Conformity applies to the above-listed product(s) placed
on the EU market after:
Date June 29, 2020
Post Office Box 576
E7556 State Rd. 23 and 33
Reedsburg, Wisconsin 53959 USA
[email protected]
+1 608.524.0625 main
+1 608.524.0655 fax
800.505.0625 toll-free
www.sounddevices.com