MOTU Traveler-mk3 User manual

™
Traveler- mk3
User Guide for Mac
1280 Massachusetts Avenue
Cambridge, MA 02138
Business voice: [phone]
Business fax: [phone]
Web site: www.motu.com
Tech support: www.motu.com/support

SAFETY PRECAUTIONS AND ELECTRICAL REQUIREMENTS
WARNING:TO REDUCE THE RISK OF FIRE OR ELECTRICAL SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR OTHER MOISTURE.
CAUTION:TO REDUCE THE RISK OF ELECTRICAL SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
WARNING: DO NOT PERMIT FINGERSTOTOUCHTHETERMINALS OF POWER PLUGSWHEN INSTALLING OR REMOVINGTHE PLUGTO OR FROM
A POWER SOURCE.
IMPORTANT SAFEGUARDS
1. Read instructions - All the safety and operating instructions should be read before operating the MOTU Traveler-mk3.
2. Retain instructions - The safety instructions and owner's manual should be retained for future reference.
3. Heed Warnings - All warnings on the MOTU Traveler-mk3 and in the owner's manual should be adhered to.
4. Follow Instructions - All operating and use instructions should be followed.
5. Cleaning - Unplug the MOTU Traveler-mk3 from the computer before cleaning and use a damp cloth.Do not use liquid or aerosol cleaners.
6. Power Sources - This MOTUTraveler-mk3 should be operated only from the type of power source indicated on the marking label.
7. Power-Cord Protection - Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them. Pay particular attention to cords and plugs, convenience
receptacles, and the point where they exit from the MOTU Traveler-mk3.
8. Lightning - For added protection for the MOTU Traveler-mk3 during a lightning storm, unplug its power supply from any wall outlets.This will prevent damage to the MOTU Traveler-mk3 due to lightning and power line
surges.
9. Servicing - Do not attempt to service this MOTU Traveler-mk3 yourself as opening or removing covers will expose you to dangerous voltage and other hazards.Refer all servicing to qualified service personnel.
10. Damage Requiring Service - Unplug the MOTU Traveler-mk3 from the computer and refer servicing to qualified service personnel under the following conditions.
a. When the power supply cord or plug is damaged.
b. If liquid has been spilled or objects have fallen into the MOTU Traveler-mk3.
c. If the MOTU Traveler-mk3 has been exposed to rain or water.
d. If the MOTU Traveler-mk3 does not operate normally by following the operating instructions in the owner's manual.
e. If the MOTU Traveler-mk3 has been dropped or the cabinet has been damaged.
f. When the MOTU Traveler-mk3 exhibits a distinct change in performance, this indicates a need for service.
11. Replacement Parts -When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock or other hazards.
12. Safety Check - Upon completion of any service or repairs to this MOTU Traveler-mk3, ask the service technician to perform safety checks to determine that the product is in safe operating conditions.
ENVIRONMENT
Operating Temperature: 10°C to 40°C (50°F to 104°)
AVOID THE HAZARDS OF ELECTRICAL SHOCK AND FIRE
Do not handle the power supply, or power cables with wet hands.
DC INPUT
10-18V, 12 watts
CAUTION: DANGER OF EXPLOSION IF BATTERY IS REPLACED. REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE RECOMMENDED
BYMANUFACTURER. DISPOSE OF USED BATTERY ACCORDING TO MANUFACTURER’S INSTRUCTIONS.

About the Mark of the Unicorn License Agreement and
Limited Warranty on Software
TO PERSONS WHO PURCHASE OR USETHIS PRODUCT:carefully read all the
terms and conditions of the “click-wrap” license agreement presented to you when
you install the software. Using the software or this documentation indicates your
acceptance of the terms and conditions of that license agreement.
Mark of the Unicorn, Inc. (“MOTU”) owns both this program and its documentation.
Both the program and the documentation are protected under applicable copyright,
trademark, and trade-secret laws.Your right to use the program and the
documentation are limited to the terms and conditions described in the license
agreement.
Reminder of the terms of your license
This summary is not your license agreement, just a reminder of its terms.The actual
license can be read and printed by running the installation program for the software.
That license agreement is a contract, and clicking “Accept” binds you and MOTU to
all its terms and conditions. In the event anything contained in this summary is
incomplete or in conflict with the actual click-wrap license agreement, the terms of the
click-wrap agreement prevail.
YOU MAY: (a) use the enclosed program on a single computer; (b) physically transfer
the program from one computer to another provided that the program is used on only
one computer at a time and that you remove any copies of the program from the
computer from which the program is being transferred; (c) make copies of the
program solely for backup purposes.You must reproduce and include the copyright
notice on a label on any backup copy.
YOU MAY NOT: (a) distribute copies of the program or the documentation to others;
(b) rent, lease or grant sublicenses or other rights to the program; (c) provide use of
the program in a computer service business, network, time-sharing, multiple CPU or
multiple user arrangement without the prior written consent of MOTU; (d) translate,
adapt, reverse engineer, decompile, disassemble, or otherwise alter the program or
related documentation without the prior written consent of MOTU.
MOTU warrants to the original licensee that the disk(s) on which the program is
recorded be free from defects in materials and workmanship under normal use for a
period of ninety (90) days from the date of purchase as evidenced by a copy of your
receipt. If failure of the disk has resulted from accident, abuse or misapplication of the
product, then MOTU shall have no responsibility to replace the disk(s) under this
Limited Warranty.
THIS LIMITED WARRANTY AND RIGHT OF REPLACEMENT IS IN LIEU OF,
AND YOU HEREBY WAIVE, ANY AND ALL OTHER WARRANTIES, BOTH
EXPRESS AND IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.THE
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EVENT SHALL MOTU OR ITS SUPPLIERS, LICENSORS, OR AFFILIATES BE
LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES, INCLUDING
BUT NOT LIMITED TO LOSS OF USE, LOSS OF PROFITS, LOSS OF DATA OR
DATA BEING RENDERED INACCURATE, OR LOSSES SUSTAINED BY THIRD
PARTIES EVEN IF MOTU HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS
WHICH MAY VARY FROM STATE TO STATE. SOME STATES DO NOT ALLOW
THE LIMITATION OR EXCLUSION OF LIABILITY FOR CONSEQUENTIAL
DAMAGES, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
Update Policy
In order to be eligible to obtain updates of the program, you must register the software
at motu.com.
Copyright Notice
Copyright © 2008, 2007, 2006, 2005, 2004 by Mark of the Unicorn, Inc. All rights
reserved. No part of this publication may be reproduced, transmitted, transcribed,
stored in a retrieval system, or translated into any human or computer language, in
any form or by any means whatsoever, without express written permission of Mark of
the Unicorn, Inc., 1280 Massachusetts Avenue, Cambridge, MA, 02138, U.S.A.
Limited Warranty on Hardware
Mark of the Unicorn, Inc.and S&S Research (“MOTU/S&S”) warrant this equipment
against defects in materials and workmanship for a period of TWO (2)YEARS from
the date of original retail purchase.This warranty applies only to hardware products;
MOTU software is licensed and warranted pursuant to separate written statements.
If you discover a defect, first write or call Mark of the Unicorn at [phone] to
obtain a Return Merchandise Authorization Number. No service will be performed on
any product returned without prior authorization. MOTU will, at its option, repair or
replace the product at no charge to you, provided you return it during the warranty
period, with transportation charges prepaid, to Mark of the Unicorn, Inc., 1280
Massachusetts Avenue, MA 02138.You must use the product’s original packing
material for in shipment, and insure the shipment for the value of the product. Please
include your name, address, telephone number, a description of the problem, and
the original, dated bill of sale with the returned unit and print the Return Merchandise
Authorization Number on the outside of the box below the shipping address.
This warranty does not apply if the equipment has been damaged by accident,
abuse, misuse, or misapplication; has been modified without the written permission
of MOTU, or if the product serial number has been removed or defaced.
ALL IMPLIED WARRANTIES, INCLUDING IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
LIMITED IN DURATION TO TWO (2)YEARS FROM THE DATE OF THE
ORIGINAL RETAIL PURCHASE OF THIS PRODUCT.
THE WARRANTY AND REMEDIES SET FORTH ABOVE ARE EXCLUSIVE
AND IN LIEU OF ALL OTHERS, ORAL OR WRITTEN, EXPRESS OR IMPLIED.
No MOTU/S&S dealer, agent, or employee is authorized to make any modification,
extension, or addition to this warranty.
MOTU/S&S ARE NOT RESPONSIBLE FOR SPECIAL, INCIDENTAL, OR
CONSEQUENTIAL DAMAGES RESULTING FROM ANY BREACH OF
WARRANTY, OR UNDER ANY LEGAL THEORY, INCLUDING LOST PROFITS,
DOWNTIME, GOODWILL, DAMAGE OR REPLACEMENT OF EQUIPMENT
AND PROPERTY AND COST OF RECOVERING REPROGRAMMING, OR
REPRODUCING ANY PROGRAM OR DATA STORED IN OR USED WITH
MOTU/S&S PRODUCTS.
Some states do not allow the exclusion or limitation of implied warranties or liability for
incidental or consequential damages, so the above limitation or exclusion may not
apply to you.This warranty gives you specific legal rights, and you may have other
rights which vary from state to state.
MOTU, AudioDesk, Mark of the Unicorn and the unicorn silhouette logo are
trademarks of Mark of the Unicorn, Inc.
This equipment has been type tested and found to comply with the limits for a class B digital device,
pursuant to Part 15 of the FCC Rules.These limits are designed to provide reasonable protection
against harmful interference in a residential installation.This equipment generates, uses, and can
radiate radio frequency energy and, if not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause interference to radio
or television equipment reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by any combination of the following measures:
• Relocate or reorient the receiving antenna
• Increase the separation between the equipment and the receiver
• Plug the equipment into an outlet on a circuit different from that to which the receiver is connected
If necessary, you can consult a dealer or experienced radio/television technician for additional
assistance.
PLEASE NOTE: only equipment certified to comply with Class B (computer input/output devices,
terminals, printers, etc.) should be attached to this equipment, and it must have shielded interface
cables in order to comply with the Class B FCC limits on RF emissions.
WARNING: changes or modifications to this unit not expressly approved by the party
responsible for compliance could void the user's authority to operate the equipment.

III
Contents
5
Quick Reference: Traveler-mk3 Front Panel
6 Quick Reference: Traveler-mk3 Rear & Side Panels
7
Quick Reference: MOTU Audio Setup
9
About the Traveler-mk3
15
Packing List and Mac System Requirements
17 Installing the Traveler-mk3 Hardware
33
Installing the Traveler-mk3 Mac Software
37
MOTU Audio Setup
43
Traveler-mk3 Front Panel Operation
55
Digital Performer
59
AudioDesk
63
Other Mac OS X Audio Software
71 Reducing Monitoring Latency
77
CueMix FX
107
MOTU SMPTE Console
111
Troubleshooting

Quick Reference:Traveler-mk3 Front Panel
1. These four detented digital trim knobs provide 53dB of
pre-amp gain for the four preamp inputs (analog 1-4) which provide low-impedance XLR mic input or high-impedanceTRS guitar/instrument input.The knobs also function as pad switches (when pushed) for a 20 dB pad.When you turn or push the knobs,you’ll see dynamic feedback of your adjustment in the LCD display. The total gain range — from when pad is enabled and the trim is turned all the way down to when the pad disabled and trim is turned all the way up — is 73 dB. Use the trim knob and the LCD metering for individual channels (via the METERS knob) to calibrate the input signal level.These mic inputs are also equipped with the Traveler-mk3’s V-Limit™ hardware limiter,which provides an additional +12 dB of headroom above zero with no clipping or digital distortion.See “Overload protection (mic/guitar inputs only)”on page 87 for details.
2. Turn theVOL knob to control the headphone volume.The
LCD provides visual feedback for the headphone volume setting as you turn the knob.Push the knob once to view the current volume setting in the LCD display.
3. From the factory, the MASTER VOL knob controls the
main outs (Analog 1-2),but MASTER VOL can be programmed to control any combination of outputs.See “The Monitor Group”on page 100 for details.Push the knob once to view the current volume setting in the LCD display;push it again to mute the monitor group;push a third time to return to the previous volume.Note:if the
Monitor group is programmed to not include the main outs,the MASTER VOL knob will no longer control the volume of the main outs.
4. This section controls theTraveler-mk3’s built-in
CueMix FX mixer and effects.There are eight stereo mix busses:each bus mixes all inputs (or any subset you wish) to a stereo output of your choice.You can apply EQ, compression and/or reverb to inputs and outputs.The four knobs to the left of the LCD correspond directly to the four labeled sections of the LCD.Use the CHANNEL knob to choose the input,output or mix you wish to edit. Push it to switch among inputs,outputs and busses, then turn it to choose the desired channel or bus.Use the PAGE, PARAM and VALUE knobs to access the mix settings for the chosen channel.
5. These four 4-segment meters show input signal level for
the mic/instrument XLR/combo inputs on the rear panel.
6. These four 4-segment meters show input signal level for
the analog TRS input jacks on the rear panel.
7. 4-segment metering for AES/EBU input. 8. MIDI activity LEDs for MIDI input and output. 9. 4-segment metering for S/PDIF input. 10. Optical digital I/O signal present LEDs for each bank.
11. When theTraveler-mk3 is resolving to SMPTE time code,
the LOCK light glows green when lockup has been achieved.The TACH light blinks once per second when the Traveler-mk3 is successfully reading address (time code) information.
12. TheTraveler-mk3 is powered by its FireWire connection
to the computer.Use this power switch to turn it on and off.It is recommended that you always power off the Traveler-mk3 before unplugging the FireWire cable.
13. These lights indicate the global sample rate at which the
Traveler-mk3 is operating.Use MOTU Audio Setup to set the sample rate or to choose an external clock source, from which the sample rate will be derived.When no clock signal is currently present,one of these LEDs flashes rapidly.For example,if you’ve set the Traveler-mk3 to slave to an external clock,such as optical,but there is no clock signal currently being detected, it flashes.
14. These four round“L/R”LEDs indicate signal presence on
the stereo S/PDIF and AES/EBU digital outputs.
15. These round LEDs indicate signal presence on the eight
rear-panelTRS analog outputs.Their threshold is around -42 dB.They do not indicate clipping in any way;use your host audio software level meters to calibrate output levels.Outputs 1-2 serve as the main outs.Push and then turn the front-panel volume knob for volume control.
16. The multi-purpose backlit LCD shows system settings,
CueMix FX settings or metering,depending on which knobs you turn.The labels above and below the LCD refer to the four digital rotary encoders to the left of the LCD. The channel numbers indicate individual channels when viewing level meters for banks of 8 channels.
17. Push the CHANNEL knob repeatedly to cycle among the
four main sections of the mixer:mix busses,inputs, outputs and the reverb module.Push the PARAM knob to enter the SETUP menu, which provides global Traveler-mk3 settings,such as the global sample rate, etc.
18. Push the METERS knob to cycle among three meter
display modes in the LCD: 1) vertical multi-channel meters,2) horizontal long-throw metering for individual channels,and 3) CueMix FX/Setup.In either meter mode (1 or 2),turn it to choose the banks and/or channels you wish to view in the LCD.
19. This is a standard quarter-inch stereo headphone jack.
From the factory, it serves as its own independent output.But it can be programmed to mirror any other output pair (digital or analog).Use the volume knob above to control its level.
20. These switches provide phantom power for their respec-
tive microphone input.Left is off; right is on.(Right on!)
1 2 4 5 6 7 8 9 10 11
121314151617181920
3

1. These jacks provide stereo,24-bit AES/EBU digital input
and output at any sample rate up to 96kHz.They are disabled at the 4x rates (176.4 and 192kHz).
2. Connect theTraveler-mk3 to the computer here using
the standard 1394 FireWire A cable provided with your Traveler-mk3.
Important note:it is best to turn off the
Traveler-mk3 when plugging in the FireWire cable, as this avoids the possibility of static discharge, which can harm the electrical components in the Traveler-mk3 or your computer.
Use the second
FireWire port to daisy-chain up to four MOTU FireWire audio interfaces to a single FireWire bus.You can also connect other FireWire devices.For details, see “Connecting multiple MOTU FireWire interfaces”on page 30.
3. These are standard word clock jacks.Use them for a
variety of applications,such as for digital transfers with devices that cannot slave to the clock supplied by their digital I/O connection with the Traveler-mk3.When the Traveler-mk3 is operating at a 2x sample rate (88.2 or 96 kHz) or 4x sample rate (176.4 or 192kHz),the word clock output can either match theTraveler-mk3’s sample rate or be reduced to the equivalent 1x rate (either 44.1 or 48 kHz).This setting is made via MOTU Audio Setup.See “Word Out”on page 42.
4. These optical digital I/O connectors can be connected
either to an ADAT-compatible“lightpipe”device (such as a digital mixer) or to a S/PDIF optical (“TOSLink”) compatible device,such as an effects processor or DAT machine.Be sure to set the format in the MOTU Audio Setup software (or from the front panel LCD).See “Optical input/output”on page 41 for details.ADAT optical supplies eight channels of 24-bit digital I/O per bank (4 channels per bank at 96 kHz).TOSLink is stereo at sample rates up to 96 kHz.One special note:you can choose independent formats for each bank,A and B,as well as IN and OUT within each bank.For example,you could choose ADAT for the optical A IN (for,say, eight channels of input from your digital mixer) and stereo TOSLink for the optical A OUT (for,say,your DAT machine).
5. These jacks provide stereo,24-bit S/PDIF digital input
and output at any sample rate up to 96kHz.They are disabled at the 4x rates (176.4 and 192kHz).
6. TheTraveler-mk3’s eight analog outputs are gold-plated,
balanced +4dBTRS (tip/ring/sleeve) quarter-inch connectors that can also accept an unbalanced plug. They are equipped with 24-bit 192 kHz converters.
7. These two balanced,quarter-inch jacks serve as the
Traveler-mk3’s main outputs.You can connect them to a set of powered studio monitors and then control the volume from the front panel MASTER VOL volume knob.
To hear disk tracks in your audio software on these main outs,assign the disk tracks (and master fader) to these main outs (Analog 1-2).You can also use CueMix FX to monitor liveTraveler-mk3 inputs here as well.
8. These 4 analog inputs are gold-plated,balancedTRS (tip/
ring/sleeve) quarter-inch connectors that can also accept an unbalanced plug.The front panel LCD and CuemixFX softwarelet youadjust them for either +4dBu or -10dBV input signals.They have 24-bit 192 kHz converters.These inputs (5 through 8) do not have mic pre-amps, so they are best used for synthesizers,drum machines,effects processors,and other instruments with line level signals (either -10 or +4).These inputs are also equipped with theTraveler-mk3’s Precision Digital Trim™ feature:digitally controlled analog trims that let you adjust input level in 1 dB increments from either front panel LCD or the included CueMix FX software.The trim can be adjusted over a range of 0 to +12 dB.
9. These four XLR/TRS combo jacks accept either a mic
cable or a quarter-inch guitar cable.Both the low- impedance XLR jack and the high-impedanceTRS jack are equipped with a pre-amp (so don’t connect a +4 line level XLR cable!) 48V phantom power can be applied via front panel toggle switches.A 20 dB pad can be applied by pushing the front panel Precision DigitalTrim™ knob. When turned,this knob provides 53 dB of gain.
10. Connect a MIDI device here using standard MIDI cables.
Connect theTraveler-mk3’s MIDI OUT port to the MIDI IN port on the other device.Conversely,connect the Traveler-mk3’s MIDI IN port to the MIDI OUT port on the other device.You can connect different devices to each port,such as a controller device to the IN port and a sound module to the OUT port.You can also daisy-chain MIDI devices,but be sure to manage their MIDI channels (so that they don’t receive or transmit on the same channel).
11. For bus-powered operation,turn on the Bus Power
Enable switch.For battery operation (i.e.powering the Traveler-mk3 from a battery pack via the 4-in XLR jack), turn this switch to the OFF position.
12. Connect a 10-24V battery pack or other DC power supply
here via a 4-in XLR cable.Remember to also turn off the bus power switch to the left.
13. This jack accepts any standard 10-24V DC power supply
with either tip-positive or tip-negative polarity.Remem- ber to also turn the BUS POWER switch to the OFF position.
Quick Reference:Traveler-mk3 Rear & Side Panels
1 2 3 4 5 6 7 9
10 11 12 13
8

CHAPTER
7
Quick Reference: MOTU Audio Setup
TheTraveler-mk3 driver provides a stereo
return back to the computer.This return
feeds the signal on anyTraveler-mk3 output
pair or CueMix FX mix bus directly back to
the computer,where you can record,
process,monitor or otherwise use it.This is a
great way to“bounce”full mixes,complete
with live audio routed through the
Traveler-mk3 only, back into the computer.
Specifies the stereo input and
output pair when the
Traveler-mk3 is chosen for
Mac OS X audio I/O.
Choose the global sample rate
for the system here.
This menu lets you choose what you will
hear from the PHONES jack.To mirror the
main outs,choose Analog 1-2.Or you can
mirror any other output pair.To hear the
phones as their own independent output,
choose Phones 1-2.
Click the tabs to access general
MOTU FireWire interface
settings or settings specific to
the Traveler-mk3 (or other
connected interface).
Check this option if you would like the MOTU
Audio Setup icon to appear in the application
dock as soon as a MOTU FireWire interface is
detected (switched on,plugged in, etc.)
Click the General tab to access these settings.
Each optical bank can be
configured independently for
ADAT or TOSLink.Disable them
when not in use to conserve
DSP and bus bandwidth.
Choose the output pair you would
like the main outs to mirror, or
chooseAnalog 1-2to operatethem
as their own independent pair.
This button opens another dialog that lets
you assign your own customized names to
each Traveler-mk3 input and output.For
example, if you have a lead vocal mic
plugged into input 1,you could name it“Lead
Vox”.Your customized names then appear in
your host audio application (if it supports
Core Audio input naming).
In the standard Mac OS X fashion,
the console appears in the dock
when you launch it.If the Launch
option is checked (as shown
above),the icon appears as soon as
you switch on your Traveler-mk3
interface.If you click and hold on
the dock icon (instead of clicking it)
or control-click,a menu of
hardware settings appears as
shown to the right.You can view
and configure any hardware
settings from this menu, without
opening the console window.
Determines the clock source for your
Traveler-mk3.If you’re just using the
analog ins and outs,set this to Internal.
The other settings are for digital transfers
via AES/EBU,S/PDIF or optical ports,or
for slaving theTraveler-mk3 to word
clock,time code or other sources.
The Clip Hold Time controls how
long the top-most red LED remains
illuminated after clipping.Choose
‘Infinite’to be able to clear the LED
from Digital Performer.The Peak
HoldTime controls how long the
highest illuminated LED remains lit
before going dark.
When running aTraveler-mk3 at a
high sample rate (88.2,96,176.4
or 192 kHz),this option appears in
the interface tab.It lets you choose
aword clock output ratethat either
matches the global sample rate
(e.g.96 kHz) or reduces it to the
corresponding 1x rate (e.g.48kHz
instead of 192 kHz).

8

CHAPTER
9
1
About the Traveler-mk3
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
The Traveler-mk3 Rear Panel. . . . . . . . . . . . . . . . . . . . . . . . . 10
The Traveler-mk3 Front Panel. . . . . . . . . . . . . . . . . . . . . . . . 12
Traveler-mk3 side panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
16-bit and 24-bit recording . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CueMix FX 32-bit floating point mixing and effects. . 13
AudioDesk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Digital Performer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Other Host Audio Software . . . . . . . . . . . . . . . . . . . . . . . . . . 14
OVERVIEW
The Traveler-mk3 is a FireWire audio interface for
Mac and Windows with on-board effects and
mixing that offers 28 inputs and 30 outputs at 44.1
or 48 kHz. Both analog and digital I/O are offered
at sample rates up to 96 kHz, and analog recording
and playback is offered at rates up to 192 kHz.All
inputs and outputs can be accessed simultaneously.
The Traveler-mk3 consists of a light (3.8 pounds)
and small (14.75 x 9 inches) aluminum alloy-
encased interface that connects directly to a
computer via a standard IEEE 1394 FireWire™
cable.
The Traveler-mk3 offers the following main
features:
■Bus-powered and battery-powered operation
■Four combo XLR/TRS mic/guitar inputs with
preamps, 48V phantom power, 20 dB pad,
Precision Digital Trim™ and V-Limit™ overload
protection
■Four 24-bit analog quarter-inch (TRS) inputs
■Eight 24-bit analog quarter-inch (TRS) outputs
■Operation on all analog I/O at standard sample
rates up to 192 kHz
■Digitally controlled analog trim for all analog
inputs
■Two banks of optical digital I/O that provide 16
channels of ADAT optical at 48 kHz, 8 channels of
S/MUX optical I/O at 96 kHz or two banks of
stereo TOSLink at rates up to 96 kHz
■RCA S/PDIF at sample rates up to 96 kHz
■AES/EBU digital I/O at rates up to 96 kHz
■Word clock I/O
■MIDI I/O
■On-board SMPTE synchronization
■Headphone jack with independent volume
control
■Programmable master volume knob
■CueMix™ FX no-latency mixing, monitoring
and effects processing
■Front-panel LCD programming for the mixer
and all other settings
■Extensive front panel metering and status LEDs
■Stand-alone operation
■Mac and Windows drivers for across-the-board
compatibility with any audio software on current
Mac and Windows systems
■AudioDesk™, full-featured audio workstation
software for Mac OS X
With a variety of I/O formats, mic preamps, no-
latency mixing and processing of live input and
synchronization capabilities, the Traveler-mk3 is a
complete, portable“studio in a box” when used
with a Mac or Windows computer.

ABOUT THE TRAVELER-MK3
10
THE TRAVELER-MK3 REAR PANEL
The Traveler-mk3 rear panel has the following
connectors:
■Eight gold-plated, balanced quarter-inch (TRS)
analog outputs (with 24-bit 192 kHz converters)
■Four gold-plated, balanced quarter-inch (TRS)
analog inputs (with 24-bit 192 kHz converters)
■Four combo XLR/TRS mic/guitar inputs with
preamps
■Two sets of optical connectors (in and out),
individually switchable among ADAT optical
“lightpipe”, 96 kHz S/MUX optical or S/PDIF
“TOSLink”
■RCA S/PDIF in/out
■XLR AES/EBU in/out
■Word clock in/out
■Two 1394 FireWire jacks
28 inputs and 30 outputs
All Traveler-mk3 inputs and outputs can be used
simultaneously, for a total of 28 inputs and 30
outputs when operating at 44.1 or 48 kHz:
* The PHONES output can operate as an
independent output pair, or it can mirror any other
Traveler-mk3 output pair, such as the main outs
(Analog 1-2).
† The Traveler-mk3 optical connectors support
several standard optical I/O formats, which
provide varying channel counts. See “Optical” on
page 11 for details about optical bank operation.
All inputs and outputs are discrete. For example,
using a mic input does not“steal”an input from the
TRS analog I/O bank.
All digital I/O is disabled for 192kHz operation.
Mic/instrument inputs with preamps
The four mic/instrument inputs are equipped with
preamps and“combo” XLR/TRS jacks, which
accept low-impedance XLR microphone inputs or
high-impedance quarter-inch guitar/instruments
inputs. The total gain range for these preamps,
including the 20dB pad, is 73dB, allowing you to
connect any type of guitar or microphone. Preamp
gain and pad can be controlled from the front
panel digital rotary encoders/switches or the
included CueMix FX™ software.
Mic/guitar input overload protection
All four mic/guitar inputs are equipped with
V-Limit™, a hardware limiter that helps prevent
digital clipping from overloaded input signals.
With V-Limit enabled, signals can go above zero
dB (with limiting applied) to as high as +12 dB
above zero with no distortion due to digital
clipping.
Additional or alternative protection can be applied
to the mic/guitar inputs by enabling the
Traveler-mk3’s Soft Clip feature, which engages
just before clipping occurs and helps reduce
perceptible distortion.
Analog
All analog inputs are equipped with 24-bit 192 kHz
A/D converters.All analog outputs have 24-bit
192 kHz D/A converters.All audio is transferred to
and from the computer in a 24-bit data stream.
Connection Input Output
Analog 24-bit 192 kHz on bal/unbal TRS 4 8
Mic/guitar 24-bit 192 kHz on XLR/TRS combo 4 -
Headphone output* - stereo
ADAT optical digital† 16 16
AES/EBU 24-bit 96 kHz digital stereo stereo
RCA S/PDIF 24-bit 96 kHz digital stereo stereo
Total 28 30

ABOUT THE TRAVELER-MK3
11
All quarter-inch analog inputs can accept either a
balanced or unbalanced plug. They are equipped
with a -10 dBV / +4 dBu reference level switch,plus
up to +12 dB of digital trim boost.
The quarter-inch outputs are referenced to a +4
dBu line level output signal.
Precision Digital Trim™
The Traveler-mk3’s mic/guitar inputs are equipped
with digitally controlled analog trims that allow
adjustments in 1 dB increments. The mic/guitar
input trims can be adjusted using front-panel
digital rotary encoders that provide feedback in the
front panel LCD with up to 53 dB of boost.All
analog inputs, including four rear-panel TRS
analog inputs, can be trimmed using the front
panel LCD or using the Traveler-mk3’s included
CueMix FX control software for Mac and
Windows. This allows you to fine-tune trim
settings for synths, effects modules and a wide
variety of analog inputs for optimum levels.
Different trim configurations can then be saved as
files on disk for instant recall.
Optical
The two optical banks provide 16 channels of
ADAT optical at 44.1 or 48 kHz, 8 channels of
S/MUX optical I/O at 96 kHz or two banks of
stereo TOSLink at rates up to 96 kHz. The banks
operate independently,including input and output,
allowing you to mix and match any optical formats.
For example, you could receive 4 channels of
96 kHz S/MUX input on Bank A while at the same
time sending 96 kHz stereo optical S/PDIF
(“TOSLink”) from the Bank A output.
AES/EBU
The Traveler rear panel provides a standard
AES/EBU digital input and output that supports
digital I/O at 44.1, 48, 88.2 and 96 kHz. The
AES/EBU jacks are disabled at the 4x sample rates
(176.4 and 192kHz).
S/PDIF
The Traveler-mk3 rear panel provides S/PDIF
input and output in two different formats: RCA
“coax”and optical “TOSLink”. The RCA jacks are
dedicated to the S/PDIF format. The TOSLink
jacks can be used either for either TOSLink or
ADAT optical, as discussed earlier.
Word clock
The Traveler-mk3 provides standard word clock
that can slave to any supported sample rate. In
addition, word clock can resolve to and generate
“high” and“low” sample rates. For example, if the
Traveler-mk3 global sample rate is set to 96 kHz,
the word clock input can resolve to a “low” rate of
48 kHz. Similarly, when the Traveler-mk3 is
operating at 96 kHz, Setup lets you choose a word
clock output rate of 48 kHz.
1394 FireWire
The two 1394 FireWire jacks accept a standard
IEEE 1394 FireWire cable to connect the
Traveler-mk3 to a FireWire-equipped Mac or
Windows computer. The second jack can be used
to daisy chain multiple interfaces — up to four
MOTU FireWire interfaces on a single FireWire
bus. It can also be used to connect other FireWire
devices without the need for a FireWire hub. Keep
in mind, however, that the Traveler-mk3 uses more
FireWire bus bandwidth when one or both optical
banks are enabled, or when it operates at higher
sample rates. These operating configurations will
limit the number of devices you can daisy chain on
a single FireWire bus.
On-board SMPTE synchronization
The Traveler-mk3 can resolve directly to SMPTE
time code via any analog input, without a separate
synchronizer. It can also generate time code via any
analog output. The Traveler-mk3 provides a DSP-
driven phase-lock engine with sophisticated
filtering that provides fast lockup times and sub-
frame accuracy.

ABOUT THE TRAVELER-MK3
12
The included MOTU SMPTE Console™ software
provides a complete set of tools for generating and
regenerating SMPTE time code, which allows you
to slave other devices to the computer. Like
CueMix FX, the synchronization features are
cross-platform and compatible with all audio
sequencer software that supports sample-accurate
sync or MIDI Time Code.
THE TRAVELER-MK3 FRONT PANEL
Digital Precision Trim™ rotary encoders
The four Digital Precision Trim™ detented rotary
encoders provide preamp gain adjustment and also
serve as 20dB pad switches when pushed. When
you turn these trim knobs, input gain can be
adjusted in 1dB increments, and the LCD display
provides active numeric feedback as the
adjustment is made.
Phantom power
Individual 48V phantom power can be enabled for
each preamp with the four front panel switches.
Headphone output and main volume control
The Traveler front panel includes a quarter-inch
stereo headphone output jack and volume knob.
Dedicated MASTER VOLUME knob
From the factory, the MASTER VOL knob controls
the main outs (Analog 1-2),but MASTERVOL can
be programmed to control any combination of
outputs. See “The Monitor Group” on page 100 for
details.
Programmable backlit LCD display
Any Traveler-mk3 setting, including the powerful
CueMix FX on-board 16-bus mixer with effects,
can be accessed directly from the front panel using
the four rotary encoders and the 2x16 backlit LCD
display.
Programmable LCD metering
Push the METERS knob to cycle among three
meter display modes in the LCD: 1) vertical multi-
channel meters,2) horizontal long-throw metering
for individual channels, and 3) CueMix FX/Setup.
In either meter mode (1 or 2), turn it to choose the
banks and/or channels you wish to view in the
LCD.
Metering section
The front panel of the Traveler-mk3 displays
several banks of input metering and output activity
LEDs. The round analog, SPDIF and AES/EBU
output activity LEDs, as well as the ADAT optical
in/out activity LEDs, display signal presence. The
threshold for these lights is approximately -42 dB.
The four-segment input meters provide dedicated
multi-segment metering for their respective inputs.
The Clock lights indicate the global sample rate (as
chosen in the Setup software). The LOCK and
TACH LEDs provide feedback for the
Traveler-mk3’s on-board SMPTE synchronization
features.TheADAT and MIDI LEDs indicate audio
and MIDI activity, respectively.
TRAVELER-MK3 SIDE PANEL
MIDI I/O
The Traveler-mk3’s standard MIDI IN and MIDI
OUT jacks supply 16 channels of MIDI I/O to and
from the computer via the Traveler-mk3’s FireWire
connection. Timing accuracy can be sample-
accurate with host software that supports it.
Bus power
The Traveler-mk3 can draw power from three
possible sources:
1. the computer (via the FireWire cable connection
between the Traveler-mk3 and the computer)
2. an external battery pack (purchased separately)
3. a DC power supply

ABOUT THE TRAVELER-MK3
13
Bus power provides convenient portability with
laptop computers.An external battery pack
provides both portability and extended operation,
even in remote locations. The included DC power
supply allows for stand-alone operation as a mixer,
without a computer. (The Traveler-mk3 can also
run stand-alone with a battery pack.)
Battery power
The 4-pin XLR battery power jack allows you to
connect a standard DC battery pack for extended
remote recording. The battery pack must supply a
minimum of 10-18 volts and 12 watts. For further
details, contact your preferred supplier of
professional audio/video equipment.
Power supply
If you do not want the Traveler-mk3 to draw power
from the computer, and AC power is available, you
can power the Traveler-mk3 from any standard
10-18V,12 watt DC power supply with any polarity
(tip positive or negative).
16-BIT AND 24-BIT RECORDING
The Traveler-mk3 system handles all data with a
24-bit signal path,regardless of the I/O format.You
can record and play back 16-bit or 24-bit audio files
at any supported sample rate via any of the
Traveler-mk3’s analog or digital inputs and
outputs.24-bit audio files can be recorded with any
compatible host application that supports 24-bit
recording.
CUEMIX FX 32-BIT FLOATING POINT
MIXING AND EFFECTS
All Traveler-mk3 inputs and outputs can be routed
to the on-board CueMix FX 16-bus (8 stereo)
digital mixer driven by hardware-based DSP with
32-bit floating point precision. The mixer allows
you to apply no-latency effects processing to
inputs, outputs or busses directly in the
Traveler-mk3 hardware, independent of the
computer. Effects can even be applied when the
Traveler-mk3 is operating stand-alone (without a
computer) as a complete rack-mounted mixer.
Input signals to the computer can be recorded wet,
dry, or dry with a wet monitor mix (for musicians
during recording, for example).
Effects include reverb, parametric EQ and
compression/limiting. The Traveler-mk3’s Classic
Reverb™ provides five different room types, three
frequency bands with adjustable crossover points,
shelf filtering and reverb lengths up to 60-seconds.
Two forms of compression are supplied: a standard
compressor with conventional threshold/ratio/
attack/release/gain controls and the Leveler™, an
accurate model of the legendary LA-2A optical
compressor, which provides vintage, musical
automatic gain control.
CueMix FX also provides 7-band parametric EQ
modeled after British analog console EQs,
featuring 4 filter styles (gain/Q profiles) to
effectively cover a wide range of audio material.
Low-pass and high-pass filters are also supplied
with slopes that range from 6 to 36 dB. The EQ
employs extremely high precision 64-bit floating
point processing.
The Traveler-mk3’s flexible effects architecture
allows you to apply EQ and compression on every
input and output (a total of 58 channels), with
enough DSP resources for at least one band of
parametric EQ and compression on every channel
at 48 kHz. However, DSP resources are allocated
dynamically and a DSP meter in the CueMix FX
software (included) allows you to keep tabs on the
Traveler-mk3’s processing resources. Each input,
output and mix bus provides a send to the Classic
Reverb processor, which then feeds reverb returns
to mix busses and outputs, with a selectable split
point between them to prevent send/return
feedback loops.

ABOUT THE TRAVELER-MK3
14
AUDIODESK
AudioDesk is a full-featured, 24-bit audio
workstation software package included with the
Traveler-mk3 system (for Mac only). AudioDesk
provides multi-channel waveform editing,
automated virtual mixing, graphic editing of ramp
automation, real-time effects plug-ins with 32-bit
floating point processing, crossfades, support for
many third-party audio plug-ins, background
processing of file-based operations, sample-
accurate editing and placement of audio, and more.
DIGITAL PERFORMER
The Traveler-mk3 system is fully integrated with
MOTU’s award-winning Digital Performer audio
sequencer software package.
OTHER HOST AUDIO SOFTWARE
The Traveler-mk3 system includes a standard
Mac OS X CoreAudio driver for multichannel I/O
with any audio application that supports
CoreAudio.

CHAPTER
15
2Packing List and
Mac System Requirements
PACKING LIST
The Traveler-mk3 ships with the items listed below.
If any of these items are not present in your
Traveler-mk3 box when you first open it, please
immediately contact your dealer or MOTU.
■One Traveler-mk3 I/O rack unit
■One set of removable rack ears
■One 6-pin to 6-pin IEEE 1394“FireWire” cable
■One DC power adapter
■One Traveler-mk3 Mac/Windows manual
■One cross-platform Universal Audio Installer CD
■One Mac OS X AudioDesk installer CD with
PDF manual
■Traveler-mk3 product registration card
MAC SYSTEM REQUIREMENTS
The Traveler-mk3 system requires the following
Mac system:
■A G4/500Mhz Power Mac or faster equipped
with at least one FireWire port
■At least 256 MB (megabytes) of RAM (512 MB
or more is recommended)
■Mac OS X (version 10.4.9 or later)
■A large hard drive (preferably at least 100 GB)
PLEASE REGISTER TODAY!
Please register your Traveler-mk3 today. There are
two ways to register.
■Visit www.motu.com to register online
OR
■Fill out and mail the included product
registration card
As a registered user, you will be eligible to receive
technical support and announcements about
product enhancements as soon as they become
available. Only registered users receive these
special update notices, so please register today.
Be sure to do the same for the included AudioDesk
software, which must be registered separately.You
can do so online at motu.com/register. Please be
sure to register AudioDesk as well, so that you will
be eligible to receive technical support and
announcements about AudioDesk software
enhancements as soon as they become available.
Thank you for taking the time to register your new
MOTU products!

PACKING LIST AND MAC SYSTEM REQUIREMENTS
16

CHAPTER
17
3Installing the Traveler-mk3
Hardware
OVERVIEW
Here’s an overview for installing the Traveler-mk3:
Connect the Traveler-mk3 interface . . . . . . . . . . . . . . . . . 18
Connect the Traveler-mk3 to the computer.
Connect audio inputs and outputs . . . . . . . . . . . . . . . . . . 18
Make optical and analog connections as desired.
Connect MIDI gear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Connect a controller, synth or control surface.
A typical Traveler-mk3 setup. . . . . . . . . . . . . . . . . . . . . . . . . 25
An example setup for computer-based mixing/FX.
Operating the Traveler-mk3 as a converter . . . . . . . . . . 26
An example of using the Traveler-mk3 as an
expander.
Making sync connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
If you need to resolve the Traveler-mk3 with other
devices, make the necessary sync connections.
Syncing to SMPTE time code. . . . . . . . . . . . . . . . . . . . . . . . . 28
Syncing AES/EBU and S/PDIF devices . . . . . . . . . . . . . . . . 29
Syncing word clock devices. . . . . . . . . . . . . . . . . . . . . . . . . . 30
Connecting multiple MOTU FireWire interfaces . . . . . 30
IMPORTANT NOTE BEFORE YOU BEGIN!
Before you begin installing the Traveler-mk3 (or
any bus-powered device), take these important
precautionary measures to avoid damaging the
sensitive electrical components in your computer,
the Traveler-mk3 or other devices being
connected:
■Tu r n of f t he c om pu te r.
■Turn off the Traveler-mk3’s front panel power
switch.
■Turn off the power of any other devices.
■Touch the metal casing of the Traveler-mk3 to
discharge any static electricity that you may be
carrying just before the installation.
After you have made all of the necessary
connections, as described in this chapter, turn on
the devices in this sequence:
1. Turn on the computer.
2. Turn on the Traveler-mk3.
3. Turn on other devices connected to the
Trave ler-mk3.

INSTALLING THE TRAVELER-MK3 HARDWARE
18
CONNECT THE TRAVELER-MK3 INTERFACE
1Plug one end of the Traveler-mk3 FireWire cable
(included) into the FireWire socket on the
computer as shown below in Figure 3-1.
☛You can connect the Traveler-mk3 to an
800Mbit “FireWire B” port using a 9-pin to 6-pin
FireWire B cable (not shown). However, the
Traveler-mk3 will still operate at its specified
400Mbit (FireWire A) data rate.
2Plug the other end of the FireWire cable into the
Traveler-mk3 I/O as shown below in Figure 3-1.
Figure 3-1: Connecting the Traveler-mk3 to the computer.
CONNECT AUDIO INPUTS AND OUTPUTS
The Traveler-mk3 audio interface has the following
audio input and output connectors:
■8 balanced, +4 dB quarter-inch analog outputs
■4 balanced +4 dB quarter-inch analog inputs
■4 mic/guitar combo jack inputs with preamps
■2 pair of optical in/out switchable between
ADAT (“Lightpipe”) or optical S/PDIF (TOSLink)
■1 pair of AES/EBU in and out
■1 pair of RCA S/PDIF in and out
Here are a few things you should keep in mind as
you are making these connections to other devices.
Mic/guitar inputs with preamps
Connect a microphone,guitar,instrument or other
analog input to the back panel XLR/quarter-inch
combo jack (Figure 3-4) with either a standard mic
cable or a balanced cable with a quarter-inch plug.
☛Do not connect a +4 (line level) XLR cable to
the mic/guitar inputs (because of the preamps).
Phantom power
If you are connecting a condenser microphone or
other device that requires phantom power, move
the corresponding 48V phantom power switch on
the front panel (Figure 3-2) to the right (enabled).
Trim
Both the low-impedance XLR mic input and the
high-impedance quarter-inch guitar input are
equipped with 53 dB of digitally controlled analog
trim. Use the detented trim knobs on the front
Figure 3-2: Traveler-mk3 front panel

INSTALLING THE TRAVELER-MK3 HARDWARE
19
panel (Figure 3-2) to adjust the input level as
needed for each input. The LCD provides visual
feedback as you turn the trim knob (Figure 3-3).
Figure 3-3: The LCD gives you feedback as you turn the TRIM knobs for
the four mic/guitar inputs.
The Traveler-mk3’s input trims are digitally
controlled, so they allow you to make fine-tuned
adjustments in 1dB increments. Use the four input
level meters on the front panel (labeled ANALOG
1-4) to calibrate the level.You can also use a long-
throw horizontal meter in the LCD. See “Meters
knob” on page 44.You can also adjust trim in the
MOTU CueMix FX software. See “Input trim” on
page 83.
20 dB pad
If the input signal is still too hot with the trim
turned all the way down, engage the 20dB pad by
pushing the Trim rotary encoder (Figure 3-2). The
LCD provides feedback for the current pad setting.
Quarter-inch analog
The quarter-inch analog inputs (5-8) and outputs
(1-8) shown in Figure 3-4 are balanced (TRS)
connectors that can also accept an unbalanced
plug.
The quarter-inch outputs are calibrated to produce
a +4 dBu line level output signal.
Quarter-inch analog input trims
The quarter-inch inputs are calibrated to
accommodate either +4 dBu or -10 dBV signals
and are equipped with digital trims that provide up
to +12 dB of boost.You can use either the front
panel LCD or the included CueMix FX software to
adjust both the reference level and the input trim.
To do so using CueMix FX, see “Pad and reference
level”on page 86 and “Input trim” on page 83. To
adjust the trims using the front panel LCD:
1Push the CHANNEL knob repeatedly until you
see “I:” (which stands for Input) in the CHANNEL
section of the LCD (Figure 3-5).
2Turn the CHANNEL KNOB until you see the
desired analog input or input pair. For example,
analog inputs 1-2 appear as“I:An 1-2”
(Figure 3-5), which means Input analog 1-2.
3From the factory, TRS analog inputs are
grouped in stereo pairs (5-6 and 7-8) If you need to
split a pair to deal with it as two individual mono
inputs, turn the PARAMETER knob until you see
PAIR in the parameter section of the LCD
(Figure 3-5). Turn the VALUE knob to choose
MONO. Then turn the CHANNEL knob again to
select the desired input you are adjusting.
Figure 3-5: The settings for analog inputs 1 and 2 (as a pair).
Figure 3-4: Traveler-mk3 back panel

INSTALLING THE TRAVELER-MK3 HARDWARE
20
4After splitting the stereo pair, if necessary, turn
the PARAM knob until you see the TRIM
parameter in the LCD (Figure 3-6):
Figure 3-6: Setting the input trim for a TRS analog input.
5Turn the VALUE knob to adjust the trim.
6Repeat steps 4 and 5 for the REF LEVEL setting
(+4 or -10).
Main outs
Analog outputs 1-2 can serve as main outputs.
From the factory, the volume for the TRS main
outputs is controlled by the MASTER VOL knob
on the front panel, although this knob can be
programmed to control any combination of
outputs. For details, see “The Monitor Group” on
page 100. In a standard studio configuration, the
main outs are intended for a pair of studio
monitors, but they can also be used as additional
outputs for any purpose.
Optical
The Traveler-mk3 rear panel provides two sets of
ADAT optical (“lightpipe”) connectors: Bank A
and B (Figure 3-4). Each bank provides an input
and output connector. All four connectors can
operate independently and offer two different
optical formats:ADAT optical or TOSLink (optical
S/PDIF). For example, you could connect
8-channel ADAT optical input from your digital
mixer and stereo TOSLink output to an effects
processor.
The Traveler-mk3 supplies +12dB of digital trim
(boost) for each optical input, which can be
adjusted from CueMix FX (“Input trim”on
page 83) or the front panel (“The IN (inputs)
menu” on page 49).
Optical operation at 44.1 or 48 kHz
When configured for ADAT“lightpipe”, an optical
connector provides 8 channels at 44.1 and 48 kHz.
ADAT optical operation at 88.2 or 96 kHz
When configured for ADAT“lightpipe”, an optical
connector provides four channels at 88.2 or 96 kHz
(2x sample rates).When using the ADAT lightpipe
format at a 2x rate, be sure to choose either Type I
or Type II operation, as explained in “ADAT SMUX
Type” on page 48.
Below is a summary of optical formats:
Optical is disabled at 4x sample rates
The optical banks are disabled at the 4x sample
rates (176.4 and 192kHz).
Using optical I/O to operate the Traveler-mk3 as a
16-channel expander
When the Traveler-mk3 is not connected directly
to a computer via FireWire, the sixteen optical
output channels can be programmed (via the
CueMix FX mixer) to mirror the incoming signal
on any combination of the Traveler-mk3’s inputs.
By connecting the Traveler-mk3 optical outputs to
another device, such as another ADAT-optical
equipped interface or a digital mixer, you add up to
sixteen additional inputs to your system (or eight
inputs at the 2x sample rates).
Format 44.1 or 48 kHz 88.2 or 96 kHz
ADAT optical 8 channels 4 channels
TOSLink stereo stereo