®
Workhorse
™
SixPack
500 Series Rack
True to the Music
™
Radial Engineering Ltd.
1588 Kebet Way, Port Coquitlam
British Columbia, Canada, V3C 5M5
tel: 604-942-1001 • fax: 604-942-1010
email: info@radialeng.com
www.radialeng.com
User Guide
®
True to the Music
www.radialeng.com
IMPORTANT SAFETY & USER NOTICE
! !
Radial 500 series power racks are specically designed for use by
qualied professional audio engineers. The open frame design is not
intended for use by consumers or those unfamiliar with this format.
Even though the current and voltage levels are relatively low, we
recommend that all slots be lled with a module or covers be placed
over unlled slots. This will help protect you from electrical shock.
These power racks are designed to be used with 500 series modules
manufactured by Radial or others that follow the 500 series format.
Even though there is no formalized standard, Radial has endeavored
to take every step possible to ensure cross-brand compatibility. To this
end, Radial has produced a free PDF download called the Workhorse
Open Source Document (Whos.Doc) that outlines the mechanical
and electrical requirements for module designs. Manufacturers are
invited to consult this document in order to assist in assuring crossplatform compatibility with both current and older 500 series formats.
Users should also consult this document and ensure the module
being used follows the prescribed pin-out conguration.
The user should ensure that the module current requirements do
not exceed the available current provided by the power rack. It is
also important that when securing the module to the frame that the
retainer screws not be over tightened or cross threaded. This will
prevent damaging the treads and ensure a longer rack life.
Finally, hot swapping or exchanging modules when power is on
can shorten the life of the card-edge connector. Although Radial
has incorporated extra safety measures, hot swapping is not
recommended. Damage caused by hot swapping is not covered
under the Radial Limited Warranty. The user is responsible for any
damage to the racks or modules arising out of hot swapping and the
user shall save Radial Engineering Ltd. harmless should any damage
occur. Please consult the Radial Limited Warranty for further details.
FOR PROFESSIONAL USE ONLY
®
™ ™
Radial Workhorse SixPack
500 Series Power Rack
Table of Contents Page
Feature set overview ....................................................................................................1
Introduction and basic functions ...................................................................................3
Feed and Link Functions ..............................................................................................4
D-sub and Omniport .....................................................................................................5
Power supply capacity ..................................................................................................6
Sliding modules in and out ...........................................................................................7
Signal ow and levels ..................................................................................................8
Basic XLR, TRS and D-sub connections ......................................................................9
Setting up a channel strip .............................................................................................10
Using the front inputs....................................................................................................11
D-sub channels 7 and 8................................................................................................11
Specications ...............................................................................................................12
Radial Limited Warranty ................................................................................Back Cover
Congratulations and thank you for purchasing the Radial Workhorse SixPack, an innovative
six slot power rack designed for the 500 series modular format. This guide describes how to
install modules safely and maximize the use of the SixPack features. We recommend that
you sit back, have a coffee and take a few minutes to read it to familiarize yourself with the
many innovative features that are built in.
To make this guide as easy to understand as possible, we have divided it into several sections.
It begins with an overview, then descriptions of each function, ending with some real world
applications. Should you nd yourself asking a question that is not addressed, we invite you
to view the SixPack FAQ page on our web site. This is where we post the latest hints and of
course questions from users. If you still do not nd what you are looking for, feel free to send an
email to info@radialeng.com and we will do our best to answer your question in short order.
FEATURE SET
®
1
True to the Music
2 3 6
1. REMOVABLE HANDLE: Can be
mounted on the top or side. Makes
transporting the SixPack around the
studio more convenient.
2. 6 SLOT RACK: Compatible with Radial
and all other 500 series modules.
3. SOLID STEEL: ‘Road ready’ 14-gauge
steel construction for durability and
improved shielding against stray
magnectic elds.
4. DOUBLE-SIDED PCB: Military grade
circuit board with through-hole parts
soldered on both sides for durability. Full
ground plane to reduce noise.
5. SAFETY CIRCUITS: Protects the
SixPack and adjacent slots from shorts
if a faulty module is inserted.
6. POWER LED’s: Indicators provide
visual status for +/-16 volt rail voltage
and 48 volt phantom power.
7. XLR INPUTS 7 & 8: Convenient front
panel XLR inputs let you connect mics
and audio processors to modules 1 and
4 or route to channels 7 and 8 on the
D-sub output.
54
7
98
8. 1600 MILLIAMP SUPPLY: Provides
265mA of average current per slot,
plenty to be shared between modules.
Perfect for high current tube devices!
9. GROUND LUG: Chassis grounding lug
for studios with sophisticated grounding
schemes.
Radial Engineering Ltd.
1
SixPack™ Power Rack
True to the Music
CARD-SLOTS INPUTS & OUTPUTS
10. XLR INPUT/OUTPUT: XLR connectors are
durable glass-lled nylon and bolted to the
14-gauge steel panel for durability. Large
channel ID numbers on each slot make
patching quick & easy.
11. TRS INPUT/OUTPUT: Balanced ¼” TRS
jacks are wired in parallel with XLRs and
used to cross-patch modules.
12. D-SUB INPUT/OUTPUT: Eight channel
interface connects the module inputs and
outputs to your workstation. Uses industry
standard DB-25 pin-out for balanced audio.
13. OMNIPORT: ¼” TRS changes function
depending on the module installed, as
determined by the manufacturer.
14. LINK: Combines stereo-ready modules
together by sliding the LINK switch into the
up position.
15. FEED: Sends the output from one module to
the input of the next, eliminating the need for
patch cables.
®
15
10
14
13
11
12
CHANNELS 7 & 8 FEATURE SET
16. FRONT XLR ASSIGN - 1/7 AND 4/8: Routes
the front panel XLR inputs to the D-sub
output or to card-slots 1 and 4.
17. MALE/FEMALE SWITCH (M/F): Routes the
front panel XLR inputs to either the male
XLR outputs or the D-sub output channels 7
and 8.
18. FEMALE XLR JACKS 7 & 8: Connects to
D-sub channels 7 and 8 at the DB25 output.
Used to send signal to a workstation via the
D-sub interface.
19. MALE XLR JACKS 7 & 8: The front panel
inputs for channels 7 and 8 can be routed
to these XLR outputs to conveniently patch
equipment from the rear panel.
20. TRS OUTPUTS 7 & 8: Balanced ¼” TRS
jacks are wired to the D-sub input channels
7 and 8. Used to receive signals originating
from your audio workstation.
Radial Engineering Ltd.
2
16
17
18
19
20
SixPack™ Power Rack
®
INPUTS 1~8
INPUT
INPUT
INPUTS 1~8
OUTPUT
INPUT
OUTPUT
INPUTS 1~8
INPUT
OUTPUT
48V
16V
TM
ACK
Workhorse
SIX-PACK
or
INPUT 1 7orINPUT 4 8
True to the Music
INTRODUCTION
The SixPack is a 6 slot power rack designed for 500 series modules. It provides power to
the modules plus 48 volt phantom for mic preamps. Up to six modules may be used at any
one time. Radial modules and those that have been designed by other manufacturers to
take advantage of the Workhorse’s extra features will enjoy the added functionality of the
Omniport™.
CARD SLOT I/O CONNECTIONS
Each of the SixPack card slots is equipped with
XLR, D-Sub and ¼” TRS inputs and outputs.
The input sensitivity is dependant on the type
of module being used. For instance if you are
CARD SLOT 2
FEED
ON
CARD SLOT 1
FEED
ON
using a microphone preamplier, the input will
of course be suited for a low level microphone.
If you are using a dynamic processor like a
limiter or an EQ, then the input will usually be
OFF
OUTPUT
OFF
LINK
OUTPUT
ON
set to handle a professional +4dB balanced
line-level signal.
Following 500 series convention, the XLR,
OMNIPORT
2
OFF
OMNIPORT
1
TRS and D-sub outputs usually produce a
+4dB balanced line level signal that is able to
feed a professional recording system or line
level mixing console. Put simply, the input level
is determined by the type of module being
used while the output level will typically be a
balanced +4dB line level signal.
OUTPUT INPUT
OUTPUT INPUT
BASIC SIGNAL FLOW
This ow chart shows the basic signal routing for slots one through six. The signal comes
into the SixPack via the rear panel female XLR, ¼” TRS or D-Sub inputs and is routed to the
module via the 15-pin card-edge receptacle. Once the signal is processed by the module, the
signal is output via the male XLR, ¼” TRS or D-Sub outputs.
FXLR
TRS
D-SUB D-SUB
Radial Engineering Ltd.
INPUT
INPUTS 1~8
CARD-SLOT
(ONE OF SIX)
3
OUTPUT
MXLR
OUTPUT
TRS
OUTPUTS 1~8
SixPack™ Power Rack
True to the Music
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
CARD-SLOT 1CARD-SLOT 2
INPUT
FEED
LINK
1
OFF
OFF
OUTPUT
INPUT
FEED
2
OFF
OUTPUT
FEED SWITCH
With older 500 series racks, connections between modules were done using an XLR patch
cable whereby the output from one module would plug into the input of another. The SixPack
simplies the process by introducing a FEED switch on each card-slot. This switch connects
the balanced output of one module into the adjacent module, eliminating the need for patch
cables.
EQUALIZERCOMPRESSOR MIC PREAMP
INPUT-3 INPUT-2
FEED FEED
CARD-SLOT 3 CARD-SLOT 2 CARD-SLOT 1
OUTPUT-3 OUTPUT-2 OUTPUT-1
The FEED switch lets you daisy chain a series of adjacent modules to create a customized
channel strip whereby a mic preamp feeds an EQ, which in turn could feed a compressor.
Changing the order is simply a matter of relocating the modules or patching using an XLR
or TRS cable.
INPUT-1
®
STEREO LINK SWITCH
Odd numbered card-slots are equipped with a LINK switch that allows modules that are
‘stereo ready’ to be linked together. A typical example would be using two limiters on a stereo
track where you want the dynamics to be the same for both channels.
CARD-SLOT 1CARD-SLOT 2
FEED
OFF
LINK
OFF
1
SixPack™ Power Rack
Radial Engineering Ltd.
CARD-SLOT 3CARD-SLOT 4
INPUT
FEED
OFF
OUTPUT
4
INPUT
FEED
OFF
OUTPUT
LINK
OFF
3
4
INPUT
FEED
OFF
OUTPUT
2
Link turned onLink turned off
INPUT
OUTPUT
®
OUTPUT
INPUT
8
INPUT
OUTPUT
INPUT
9
10
INPUT
FEED
LINK
INPUT
OUTPUT
OMNIPORTOMNIPORT
OFF
OFF
OUTPUT
OUTPUT
INPUT
GROUND
CARD SLOT 10 CARD SLOT 9 CARD SLOT 8 CARD SLOT 7 CARD SLOT 6 CARD SLOT 5 CARD SLOT 4 CARD SLOT 3 CARD SLOT 2 CARD SLOT 1
FEED
OFF
UNPACKING THE SIXPACK
It is recommended that you save all packaging. Inside you will nd the power supply, power
cable suitable for your region and a handle. The handle may be attached to the side or the
top using two screws and two washers as shown below.
True to the Music
POWERING THE SIXPACK
The SixPack employs an external 100V to 240V power supply
that automatically converts the various voltages used around
the world and regulates them before sending the power to
the SixPack. A standard male IEC/EIN power input connector
makes it easy to travel as you will only need to change the cable
to suit the local power connector type. The connection between
the power supply and the SixPack is a 5-pin locking XLR.
There is no power switch on the SixPack. As soon as you connect the power supply to the
SixPack, a front panel LED will illuminate to let you know the power supply is active. This
indicates the +16/-16V rails are ready.
PHANTOM POWER
A second LED indicator will illuminate to tell you that 48V phantom is present. Phantom
power is only sent to the modules when the supply connection to the 15-pin card slot is
made. This will normally only be found on preamp modules that employ 48V phantom. Other
modules will not be affected and will simply ignore the phantom power as if it were not there.
POWER SHARING
The power supply produces 1600 milliamps (mA) of current that is shared between the cardslots. So for instance, if you have power-hungry tube preamps in slots 1 thru 4 that require
250 milliamps of current each, you still have 600 milliamps of current left to power the other
card-slots. Considering most 500 series modules use between 40 and 130 milliamps of
current, it is unlikely you will ever exceed the SixPack’s available power.
Example: Slot-1 Radial PowerTube tube preamp 235mA
Slot-2 Radial PowerTube tube preamp ........................... 235mA
Slot-3 Radial PowerTube tube preamp ........................... 235mA
Slot-4 Radial PowerTube tube preamp ........................... 235mA
Slot-5 Radial Komit compressor ..................................... 130mA
Slot-6 Radial Komit compressor ..................................... 130mA
Total Current Draw: 1200mA (400mA to spare!)
+16VDC
-16VDC
Radial Engineering Ltd.
6
SixPack™ Power Rack
True to the Music
INSTALLING MODULES IN THE SIXPACK
It’s always safer to make electrical connections with the power disconnected. The SixPack’s
internal power circuit is equipped with protective measures intended to provide a margin of
safety should a module exchange be performed with the power on. However, the SixPack is
not designed to allow repeated insertion and removal of modules while the power supply is
active. Always disconnect the power supply before exchanging modules.
Slide your modules into a slot until the 15-pin card-edge mates with the rear plane connector
and push rmly. Once inserted, secure the module in place using the supplied Phillips 4/40
machine screws. To prevent damage to the frame do not over tighten the screws. After the
module is inserted, it will automatically route the signal from the rear panel connectors to and
from the module.
®
Radial Engineering Ltd.
7
SixPack™ Power Rack
®
True to the Music
SIGNAL FLOW AND LEVELS
Because the SixPack is modular, it can accept a multitude of devices into its card slots. This
also means that you need to understand the signal ow so that you can be sure what you
want to do will work. In the world of audio, there are basically four ‘low level’ signal groups to
contend with before you get to high power output levels such as those produced by power
ampliers to drive loudspeakers.
MIXER
+4dB
-10dB
0dB
NOMINAL
WORKHORSE MIX BUSS
3
4
-20dB
-50dB
MIC / DI
1
ACOUSTIC
2
1. MIC LEVEL RANGE: Microphones and direct boxes produce the weakest
signals. These typically range from -60dB to -40dB. Some such as ribbon
microphones can be as low as -70dB while condenser mics will generally be
at the top end of this range. With a SixPack, one would connect a microphone
to a preamp like the PowerPre™. This would elevate the mic-level signal to
produce a +4dB line-level signal at the XLR output.
2. INSTRUMENT LEVEL RANGE: The output levels produced by instruments
can range widely. A single coil electric bass guitar can produce as little as
-40dB while an electronic keyboard, sampler or digital piano is capable of
producing -10dB or more. For low level instruments, 500 series modules like
the JDV™ amplify the signal to produce a +4dB signal level at the XLR output
for direct recording.
3. UNBALANCED -10dB LINE LEVEL RANGE: Unbalanced outputs from CD
players, keyboards, mixers and home hi- components are usually specied
at -10dB and are often referred to as consumer line-level. These normally
connect to a preamp input or a line level module. If too loud, one simply
engages a pad.
4. BALANCED +4dB LINE LEVEL RANGE: This is the professional line level
that comes from a recording system and is normally the level that connects
in and out of EQs, compressors and so on. Most 500 series modules receive
and produce a +4dB signal level.
Matching the output level of one device to the input of the next will help you avoid distortion
and maximize signal-to-noise. For instance, using a +4dB output to drive a -10dB input could
overload the input and cause distortion. Conversely, a -10dB output may not have enough
gain to drive the input of a +4dB device resulting in a higher noise oor.
Because each of the SixPack slots is equipped with both XLR and ¼” TRS balanced input
and output connectors, you are pretty much free to interconnect modules or route signals to
other devices as you like. Once you start working with the SixPack, you will quickly come to
understand all of the capabilities and how easy it is to use.
Radial Engineering Ltd.
8
SixPack™ Power Rack
True to the Music
48V
16V
TM
ACK
Workhorse
SIX-PACK
or
INPUT 1 7orINPUT 4 8
+
3
-
+
G
-
+
G
4
5
-
+
G
-
+
G
6
7
-
+
G
-
+
G
8
MAKING CONNECTIONS
As a precaution, turn down levels before making connections. This will avoid the loud onoff transient that can damage equipment or blow speakers. After you have some modules
installed you can connect the 5-pin XLR power supply cable. The SixPack will instantly power
on and the front panel LED indicators will illuminate.
XLR and TRS connections
Connecting to and from modules is done using the XLR, ¼” TRS and D-sub connectors.
These jacks are wired in parallel. The 1/4” TRS connectors are particularly useful for crosspatching between modules, like a patchbay, opening many options for creative signal
processing.
XLR I/O TRS I/O COMBINATION I/O
CARD SLOT 1
INPUT
FEED
OFF
OUTPUT
LINK
OFF
OMNIPORT
1
INPUT
OUTPUT
D-sub connections for modules
The SixPack is equipped with D-sub input and output connectors wired to the TASCAM™
pin-out standard for easy patching to workstations. These carry 8 channels of audio back
and forth between your workstation and the SixPack. Once connected, D-sub channels 1
thru 6 are automatically routed to the six card-slot inputs and outputs. D-sub channels 7 and
8 are routed to the ¼” TRS and female XLR convenience jacks on the front and rear panels.
OUTPUT
FEED
OFF
LINK
OFF
1
CARD SLOT 1
OUTPUT
OMNIPORT
OUTPUT
FEED
OFF
LINK
OFF
1
CARD SLOT 1
OUTPUT
OMNIPORT
INPUT
INPUT
INPUT
INPUT
®
D-SUB CHANNELS
12345678
748
1
CARD SLOT 6 CARD SLOT 5
FEED
M
F
F
F
MFM
8 7
OUTPUT OUTPUT
FROM DB25 INPUT
SPLIT VOLTAGE POWER SUPPLY
-16VDC
ON
M
OFF
OUTPUT
OUTPUT
LINK
ON
OFF
OMNIPORT
OMNIPORT
6
5 4 23 1
OUTPUT INPUT
OUTPUT INPUT
+16VDC
www.radialeng.com
GND
OUTPUTS 1~8
INPUTS 1 ~ 8 OUTPUTS 1~8
Radial Engineering Ltd.
CARD SLOT 3
CARD SLOT 4
FEED
FEED
ON
ON
OFF
OFF
OUTPUT
OUTPUT
LINK
ON
OFF
OMNIPORT
OMNIPORT
OUTPUT INPUT
OUTPUT INPUT
®®
PIN DIAGRAM - PANEL VIEW
13
+
+
+
+
G
G
G
G
-
-
-
-
4
6
8
2
-
-
-
-
3
5
7
1
G
G
G
G
+
+
+
+
AUDIO INTERFACE
CARD SLOT 2
FEED
ON
OFF
OUTPUT INPUT
OMNIPORT
OUTPUT
INPUTS 1~8
9
CARD SLOT 1
FEED
ON
OFF
LINK
ON
OFF
OUTPUT INPUT
OUTPUT
OMNIPORT
D-SUB PIN-OUT PANEL VIEW
13
G
1
-
+
G
-
2
+
G
-
3
+
G
-
4
+
G
-
5
+
G
-
6
+
G
-
7
+
G
-
8
+
SixPack™ Power Rack
®
True to the Music
SETTING UP A CHANNEL STRIP
The SixPack makes it easy to combine several modules together to create a channel strip.
For instance, when recording a vocal track, you may want to run a mic preamp into an EQ to
add some presence and then into a compressor to control it’s dynamic range.
Using the old system, you would connect the microphone to the mic preamp using a standard
XLR cable. The mic preamp output would then connect to the EQ which in turn would connect
to the limiter. The direct XLR output from the limiter would then be sent to the recording
system.
COMPRESSOR EQUALIZER MIC-PRE
CARD SLOT 1
INPUT
FEED
OFF
OUTPUT
LINK
OFF
OMNIPORT
1
INPUT
OUTPUT
FEED
OFF
LINK
OFF
1
OUTPUT
CARD SLOT 1
INPUT
OUTPUT
OMNIPORT
INPUT
FEED
OFF
LINK
OFF
1
OUTPUT
CARD SLOT 1
INPUT
OUTPUT
OMNIPORT
INPUT
The SixPack simplies the process with a FEED switch that replaces inter-module patch
cables. Instead of using an XLR cable, you simply push the FEED switch into the UP position
and it routes the signal to the adjoining module’s input working from left to right (front view).
Because the FEED function is tied to the XLR connector, it will work with both Radial modules
and older 500 series modules.
COMPRESSOR EQUALIZER MIC-PRE
CARD SLOT 1
INPUT
FEED
OFF
OUTPUT
LINK
OFF
OMNIPORT
1
INPUT
OUTPUT
FEED
OUTPUT
OFF
LINK
OFF
1
CARD SLOT 1
OMNIPORT
OUTPUT
FEED
OFF
LINK
OFF
1
CARD SLOT 1
INPUT
OUTPUT
OMNIPORT
INPUT
INPUT
FEEDFEED
OUTPUT
INPUT
Once you get started, you will soon nd all kinds of new and exciting ways to patch modules.
You could, for instance, use the FEED switch to connect one module into the next while using
a TRS cable to simultaneously patch the signal to a third module.
EQ MIC-PRE
CARD SLOT 1
INPUT
FEED
OFF
LINK
OFF
OMNIPORT
1
OUTPUT
FEED
OUTPUT
INPUT
10
CARD SLOT 1
INPUT
FEED
OFF
OUTPUT
LINK
OFF
OMNIPORT
1
INPUT
OUTPUT
SixPack™ Power Rack
Radial Engineering Ltd.
COMPRESSOR
CARD SLOT 1
INPUT
FEED
OFF
OUTPUT
LINK
OFF
OMNIPORT
1
INPUT
OUTPUT
True to the Music
PIN DIAGRAM - PANEL VIEW
1
-
+
G
-
+
G
2
3
-
+
G
-
+
G
4
5
-
+
G
-
+
G
6
7
-
+
G
-
+
G
8
13
INPUTS 1~8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
PIN DIAGRAM - PANEL VIEW
1
-
+
G
-
+
G
2
3
-
+
G
-
+
G
4
5
-
+
G
-
+
G
6
7
-
+
G
-
+
G
8
13
INPUTS 1~8
TM
ACK
Workhorse
or
INPUT 4 8
TM
ACK
Workhorse
or
INPUT 4 8
7
4
8
1
M
F
M
F
7
4
8
1
M
F
M
F
7
4
8
1
M
F
M
F
USING THE CONVENIENCE XLR INPUT JACKS
The front female XLR inputs can be used in several ways depending on how the rear panel
switches for channels 7 and 8 are set.
Routing the front inputs to modules 1 & 4
The SixPack makes it easy to set up a stereo channel strip by
routing the front channel 7 and 8 conveinence jack to slots 1 and
4. This lets you add an EQ to slots 2 and 5 and a compressor to
slots 3 and 6 to create a stereo ‘strip of dreams’. The outputs of
the modules can be connected to the workstation using the XLR,
TRS or D-sub connectors.
CARD
SLOT
1-3
FRONT PANEL
FXLR INPUTS
CARD
SLOTS
CARD
SLOT
4-6
OUTPUTS 1~8
CHANNELS 7&8
Routing the front inputs to rear outputs
You can also choose to route the front female XLR inputs to male
XLR outputs on the rear panel. This option lets you patch into a
preamp or processor without having to reach around to the back
panel. Set the rear panel switches as shown to route the front XLR
inputs to the rear XLR outputs.
4
F
D-SUB
CARD-SLOT
OUTPUTS
4
F
8
M
8
M
7
1
M
F
7
1
M
F
®
STEREO
MIC PREAMP
FRONT PANEL
FXLR INPUTS
REAR PANEL
MXLR OUTPUTS
Routing the front inputs to D-sub channels 7 & 8
You can route the front inputs to D-sub channels 7 and 8 and patch
the output of a mic or preamp to your workstation. Set the rear
panel switches as shown to route the front inputs to the D-sub
interface. This setup can be used while recording to connect two
additional microphone signals along with the modules in the six
card-slots.
Radial Engineering Ltd.
STEREO
MIC PREAMP
FRONT PANEL
FXLR INPUTS
OUTPUTS 1~8
D-SUB
CHANNELS 7&8
11
XLR
CABLES
4
F
SixPack™ Power Rack
8
M
7
1
M
F
®
OMNIPORT
OUTPUT INPUT
OUTPUT
FEED
LINK
ON
OFF
ON
OFF
OMNIPORT
OUTPUT
48V
16V
TM
ACK
CARD SLOT 1
Workhorse
SIX-PACK
or
INPUT 1 7orINPUT 4 8
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
INPUT
FEED
INPUT
FEED
OFF
CARD SLOT 1CARD SLOT 2
OFF
INPUT
OMNIPORT
OUTPUT
www.radialeng.com
®®
OMNIPORT
OUTPUT INPUT
OUTPUT
FEED
LINK
ON
OFF
ON
OFF
OMNIPORT
OUTPUT INPUT
OUTPUT
FEED
ON
OFF
CARD SLOT 2
OMNIPORT
OUTPUT INPUT
OUTPUT
FEED
LINK
ON
OFF
ON
OFF
CARD SLOT 3
OMNIPORT
OUTPUT INPUT
OUTPUT
FEED
ON
OFF
CARD SLOT 4
48V
16V
TM
ACK
CARD SLOT 1
PIN DIAGRAM - PANEL VIEW
1
-
+
G
-
+
G
2
3
-
+
G
-
+
G
4
5
-
+
G
-
+
G
6
7
-
+
G
-
+
G
8
13
INPUTS 1~8
Workhorse
SIX-PACK
or
INPUT 1 7orINPUT 4 8
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
FEED
LINK
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OUTPUT
INPUT
OMNIPORT
FEED
LINK
12
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OMNIPORT
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OMNIPORT
OUTPUT
INPUT
OMNIPORT
FEED
LINK
12
INPUT
FEED
OFF
OFF
CARD SLOT 1CARD SLOT 2
OMNIPORT
OFF
OUTPUT OUTPUT
LINK
OFF
INPUT
OMNIPORT
OUTPUT
WORKHORSE SIXPACK SPECIFICATIONS
Circuit type:.............................Connection bus from modules to connectors
Format: ...................................Desktop
Number of slots: .....................6
Input connectors: ....................8 balanced XLR male, 8 ¼” TRS, 25-Pin D-Sub
Output connectors: .................8 balanced XLR female, 8 ¼” TRS, 25-Pin D-Sub
Compatibility: ..........................Adheres to the Whos-Doc and VPR Alliance
Omniport: ................................Ye s
Feed switch: ...........................Yes
Stereo link:..............................Ye s
48V phantom power: ..............Yes on all card-slots
Available current: ....................1600 milliamps
Average current: .....................266 mA per slot
Card slot impedance:..............Module dependent
Ground connections: ..............Chassis
XLR pin wiring: .......................AES standard: pin-1 ground, pin-2 (+), pin-3 (-)
D-sub pin-out: .........................Follows Tascam D-sub standard
Power supply: .........................External 100V - 240V AC with 48V Phantom
PSU Connection: ....................Locking 5 pin XLR female on cable
WORKHORSE SIXPACK BLOCK DIAGRAM
True to the Music
INPUTS 1~8
INPUT-1 INPUT-2 INPUT-3 INPUT-4 INPUT-5 INPUT-6
Radial Engineering Ltd.
CARD-SLOT 1 CARD-SLOT 2 CARD-SLOT 3 CARD-SLOT 4 CARD-SLOT 5 CARD-SLOT 6
OUTPUT-1 OUTPUT-2 OUTPUT-3 OUTPUT-4 OUTPUT-5 OUTPUT-6
OUTPUTS 1~8
12
TRS OUTPUT-7 TRS OUTPUT-8
FRONT
INPUT-1/7
FRONT
PANEL
JACKS
1/7 SWITCH
4/8 SWITCH
M/F SWITCH
MXLR MXLR
FXLR FXLR
D-SUB CH 7 D-SUB CH 8
SixPack™ Power Rack
FRONT
INPUT-4/8
True to the Music
INPUTS 1~8
INPUT
INPUT
INPUTS 1~8
OUTPUT
INPUT
OUTPUT
INPUTS 1~8
INPUT
OUTPUT
INPUTS 1~8
OUTPUTS 1~8
OUTPUT
INPUT
OUTPUT
OMNIPORT
Omniport™ is a special ¼” TRS jack located on the rear panel that has been left ‘open’
to allow the module to perform a unique task. In other words, depending on the type of
module, the manufacturer can assign the Omniport to perform a function that may be most
appropriate. This could be a key input on a gate, a TRS effects loop or maybe an output.
As the Omniport function is determined by the module, you will need to consult the module
manufacturer’s specication for details on how it was designed to be used.
OMNIPORT
TRS
OUTPUT
FXLR
MXLR
®
TRS CARD-SLOT
D-SUB D-SUB
INPUT
(ONE OF SIX)
INPUTS 1~8
OUTPUT
OUTPUTS 1~8
Radial Modules Omniport Assignment:
Module Omniport function
PowerPre: Instrument input
JDV-Pre: Line level output
PowerTube: Instrument input
PreComp: Send & receive insert
PreMax: Instrument input
X-Amp: Instrument input
PhazeQ: Balanced dry signal out
JDX: Direct box output
D-SUB INTERFACE AND THE FRONT PANEL CONVENIENCE XLRS
The SixPack is equipped with two 8-channel D-sub connectors that let you route signals
Module Omniport function
EXTC: Send & receive insert
Komit: Compressor side chain
Shuttle: Extra insert loop
Q3: Send & receive insert
Q4: Unbalanced I/O
TankDriver: Alternate reverb out
TossOver: Alternate 2-way output
SubMix: Mixer expansion bus
ChainDrive: Unbalanced input
between your workstation and the SixPack. D-sub channels 1 thru 6 are routed to the cardslots inputs and outputs while D-sub channels 7
and 8 are routed to convience jacks on the front
and rear panels. These allow you to patch external
processors into your workstation via the SixPack.
Switches on the rear panel let you to choose how
the connectors are routed. The routing options are:
Front XLR To Card-slots 1 & 4
Front XLR To D-Sub ch. 7 & 8
Front XLR To Rear Male XLR
Radial Engineering Ltd.
5
SixPack™ Power Rack
TRS
THREE YEAR TRANSFERABLE LIMITED WARRANTY
RADIAL ENGINEERING LTD. (“Radial”) warrants this product to be free
from defects in material and workmanship and will remedy any such defects free of charge according to the terms of this warranty. Radial will
repair or replace (at its option) any defective component(s) of this product
(excluding nish and wear and tear on components under normal use) for
a period of three (3) years from the original date of purchase. In the event
that a particular product is no longer available, Radial reserves the right
to replace the product with a similar product of equal or greater value. In
the unlikely event that a defect is uncovered, please call 604-942-1001
or email service@radialeng.com to obtain an RA number (Return Authorization number) before the 3 year warranty period expires. The product
must be returned prepaid in the original shipping container (or equivalent)
to Radial or to an authorized Radial repair center and you must assume
the risk of loss or damage. A copy of the original invoice showing date of
purchase and the dealer name must accompany any request for work to
be performed under this limited and transferable warranty. This warranty
shall not apply if the product has been damaged due to abuse, misuse,
misapplication, accident or as a result of service or modication by any
other than an authorized Radial repair center.
THERE ARE NO EXPRESSED WARRANTIES OTHER THAN THOSE
ON THE FACE HEREOF AND DESCRIBED ABOVE. NO WARRANTIES
WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE SHALL EXTEND BEYOND THE
RESPECTIVE WARRANTY PERIOD DESCRIBED ABOVE OF THREE
YEARS. RADIAL SHALL NOT BE RESPONSIBLE OR LIABLE FOR ANY
SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSS
ARISING FROM THE USE OF THIS PRODUCT. THIS WARRANTY
GIVES YOU SPECIFIC LEGAL RIGHTS, AND YOU MAY ALSO HAVE
OTHER RIGHTS, WHICH MAY VARY DEPENDING ON WHERE YOU
LIVE AND WHERE THE PRODUCT WAS PURCHASED.
www.radialeng.com
Radial Engineering Ltd.
1588 Kebet Way, Port Coquitlam BC V3C 5M5
tel: 604-942-1001 • fax: 604-942-1010
info@radialeng.com • www.radialeng.com
Radial Workhorse™ SixPack™ User Guide - Part #R870 1263 00 / 06-2018
Specications and appearance are subject to change without notice.
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