Midas consoles DL431 Operator Manual
DL431 Mic Splitter
Operator Manual
Midas Klark Teknik Limited,
Klark Industrial Park,
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
Tel: +44 1562 741515
Fax: +44 1562 745371
Email: info@midasklarkteknik.com
Website: www.midasconsoles.com
DL431 Mic Splitter — Operator Manual
DOC02-DL431 Issue B — April 2010
© Red Chip Company Ltd.
In line with the company’s policy of continual improvement, specifications and function may be
subject to change without notice. This document was correct at the time of writing. E&OE.
IMPORTANT SAFETY INSTRUCTIONS
The lightning flash with arrowhead symbol within an equilateral triangle is
intended to alert the user to the presence of uninsulated “dangerous voltage”
within the product's enclosure that may be of sufficient magnitude to constitute a
risk of electric shock to persons.
The exclamation point within an equilateral triangle is intended to alert the user
to the presence of important operating and maintenance (servicing) instructions
in the literature accompanying the product.
1 Read these instructions.
2 Keep these instructions.
3 Heed all warnings.
4 Follow all instructions.
5 Do not use this apparatus near water.
6 Clean only with a dry cloth.
7 Do not block any of the ventilation
openings. Install in accordance with the
manufacturer’s instructions.
8 Do not install near any heat sources such
as radiators, heat registers, stoves, or
other apparatus (including amplifiers) that
produce heat.
9 Do not defeat the safety purpose of the
polarized or grounding-type plug. A
polarized plug has two blades with one
wider than the other. A grounding type
plug has two blades and a third grounding
prong. The wide blade or the third prong
are provided for your safety. If the
provided plug does not fit into your outlet,
consult an electrician for replacement of
the obsolete outlet.
10 Protect the power cord from being walked
on or pinched particularly at plugs,
convenience receptacles and the point
where they exit from the apparatus.
11 Only use attachments/accessories
specified by the manufacturer.
12 Unplug this apparatus during lightning
storms or when unused for long periods of
time.
13 Refer all servicing to qualified personnel.
Servicing is required when the apparatus
has been damaged in any way, such as
power-supply cord or plug is damaged,
liquid has been spilled or objects have
fallen into the apparatus, the apparatus
has been exposed to rain or moisture,
does not operate normally, or has been
dropped.
14 Use the mains plug to disconnect the
apparatus from the mains.
15 Warning: To reduce the risk of fire or
electric shock, do not expose this
apparatus to rain or moisture.
16 Warning: Do not expose this
equipment to dripping or splashing
and ensure that no objects filled with
liquids, such as vases, are placed on
the equipment.
17 Warning: The mains plug of the power
supply cord shall remain readily
operable.
Midas
EC-Declaration of Conformity
The undersigned, representing the following manufacturer
Manufacturer: Address:
Midas Klark Teknik Ltd. Klark Industrial Park, Walter Nash Road,
Kidderminster. Worcestershire. DY11 7HJ.
hereby declares that the following product
Product Type Number Product Description Nominal Voltage(s) Current Freq.
DL431 Audio System Input Splitter
115V AC
230V AC
1A
0.6A
50/60Hz
is in conformity with the regulations of the following marked EC-directives and bears the
-mark accordingly
reference number title
2004/108/EC EMC Directive (EMC)
2006/95/EC Low-Voltage Directive (LVD)
The conformity of the product with EC Directives for use in environment E4 is provided by compliance with
the following standards:
Standards/date:
Applied Electrical Safety test standards:
reference number title
EN 60065:2002
Audio, video and similar electronic apparatus. Safety requirements
Applied EMC emission test standards:
ref. no. title
EN 55103-1:1996
Class A
CISPR 22: Radiated disturbance,
CISPR 22: Conducted disturbance,
CISPR 16: Discontinuous
EN 61000-3-2:2000 Mains
EN 61000-3-3:1995 Mains voltage
EN 55103-1 Annex A: Radiated
magnetic disturbance, 50Hz-50kHz
30-1000MHz
ac & signal ports
disturbance
harmonics
flicker
Applied EMC immunity test standards:
ref. no. title
EN 55103-2:1996
Class A
EN 55103-2 Annex A: Magnetic LF
EN 61000-4-4:1995: Fast transient
EN 61000-4-5:1995: Surge, ac port
EN 61000-4-6:1996: Conducted RF
EN 61000-4-11:1994: Mains voltage
EN 61000-4-2:1995 Electrostatic
discharge
EN 61000-4-3:1996: Radiated RF
disturbance, 80-1000MHz
disturbance, 50Hz–10kHz
bursts, ac & signal ports
field, ac & signal ports
dips and interruptions
Place, date: Kidderminster, UK
15
General Manager AVP, Product Development
Printed name: John Oakley Printed name: Alex Cooper
th
April 2010
DOC04-DL431ECDOC Rev. B
Licences
The following are the license agreements applicable to the Midas Digital Equipment.
End-User Licence Agreement for Midas™ and Klark Teknik™ Software
IMPORTANT - Please read this document carefully before using this Midas™ or
Klark Teknik™ Product. This is an agreement governing your use of software or
other machine instructions already installed on this Midas™ or Klark Teknik™
Product, as well as other software that we provide for installation on this Product.
The Midas™ or Klark Teknik™ Product will not operate in accordance with its
documentation without this software.
THIS AGREEMENT ("AGREEMENT" OR "LICENCE") STATES THE TERMS AND CONDITIONS UPON WHICH
MIDAS KLARK TEKNIK LIMITED ("COMPANY") OFFERS TO LICENSE THE INSTALLED FIRMWARE,
SOFTWARE AND/OR PROGRAMS ("the SOFTWARE") WITH THE MIDAS™ OR KLARK TEKNIK™ CONSOLE
OR SIGNAL PROCESSING PRODUCT ("PRODUCT") IN WHICH IT HAS BEEN INSTALLED BY, OR FOR
WHICH IT IS PROVIDED BY, THE COMPANY. BY USING THIS PRODUCT YOU WILL BE AGREEING TO
BECOME BOUND BY THE TERMS OF THIS LICENCE. IF YOU DO NOT AGREE TO THE TERMS OF THIS
LICENCE, DO NOT USE THIS PRODUCT AND PROMPTLY RETURN THE PRODUCT TO THE PLACE WHERE
YOU OBTAINED IT FOR A FULL REFUND. You agree to notify any persons whom you permit to operate
this Product of the terms of this Licence, and to require them to comply with these terms.
The Software is licensed, not sold, to you for use only under the terms of this Licence, and the
Company reserves all rights not expressly granted to you. The Company retains ownership of all copies
of the Software itself, and all proprietary parts of it, including those stored on or in the Product.
1. Licence: Subject to the terms and conditions of this agreement, the Company grants you, and
other persons you permit to operate the Product, a personal, limited, non-exclusive,
non-transferable licence to use the Software only on the single Product unit in which it has been
installed.
2. Restrictions: (a) The Software, and the accompanying written materials, are copyrighted and
contain trade secrets and other proprietary matter, including confidential information relating to
the specifications and performance characteristics of this Product. Save for such elements as
may be licensed to the Company, as described in paragraph 5, all rights to copyrights, trade
marks and trade secrets in the Software, or any modifications to it, are owned by the Company.
Unauthorised use or copying of the Company's proprietary Software, or any portion thereof, or
copying of those written materials, is prohibited. (b) You may not create, market, distribute, or
transfer copies of the Company's proprietary Software, or any part of it, to others, or duplicate,
rent, lease or loan that Software, or any part of it, except that you may transfer that Software
installed in this Product in conjunction with the sale, transfer, loan, rent or lease of this Product,
and subject at all times to this Licence. YOU MAY NOT REVERSE ENGINEER, DECOMPILE,
DISASSEMBLE, EXTRACT OR SEPARATE OUT, MODIFY, ADAPT, PORT, OR TRANSLATE THE
SOFTWARE, DERIVE THE SOURCE CODE OF THE SOFTWARE OR CREATE DERIVATIVE WORKS
BASED ON THE SOFTWARE OR ANY ACCOMPANYING WRITTEN MATERIALS, save as is allowed by
licences pertaining to component parts of the Software which are licensed by third parties, as
described under paragraph 5, or otherwise by law. (c) In the event you violate any term of this
Licence, all rights granted herein will automatically and immediately terminate and you must stop
using the Software and destroy any copies of the Software.
3. Limited Warranty: Subject to your installation of any Software updates issued by the Company
as described herein, and the condition below, the Company warrants that the Software will
operate in compliance with the Software's material specifications and documentation for a period
of 90 days from your purchase of this Product. The Software is provided "as is" and the Company
does not warrant that the operation of the Software will meet your requirements or operate free
from error. To the greatest extent permissible by law, the Company DISCLAIMS ALL
WARRANTIES AND CONDITIONS, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT OF THIRD
PARTY RIGHTS OR CAPABILITY OF CORRECTLY PROCESSING PROVIDING AND/OR RECEIVING
DATE INFORMATION. You understand that the Company may update or revise the Software but
in so doing incurs no obligation to furnish such updates to you. However, the Company may in its
discretion make updates available from time to time upon such terms and conditions as it shall
determine. It is a condition of the above warranty that you install any such Software updates, as
may be issued from time to time by the Company for the Software, in accordance with the
Company's instructions, and if you do not do so such warranty will cease to apply. You may view
current Software updates at http://www.klarkteknik.com and http://www.midasconsoles.com.
4. Limited Liability: THE ENTIRE RISK ARISING OUT OF YOUR USE OR PERFORMANCE OF THE
SOFTWARE REMAINS WITH YOU. THE LIABILITY OF THE COMPANY FOR ANY CLAIMS ARISING
OUT OF THIS LICENCE AND/OR BASED UPON THE SOFTWARE, REGARDLESS OF THE FORM OF
ACTION, AND INCLUDING WORK STOPPAGE, PRODUCT FAILURE OF MALFUNCTION OR ANY
OTHER COMMERCIAL LOSS OR DAMAGE, SHALL NOT EXCEED THE COST OF THE LICENCE FEE
FOR THE SOFTWARE OR THE COST OF THIS PRODUCT. SUBJECT TO THE PROVISIONS OF
APPLICABLE LAW, IN NO EVENT SHALL THE COMPANY BE LIABLE FOR ANY LOSS OF DATA, LOST
OPPORTUNITY OR PROFITS, COST OF COVER OR SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR
INDIRECT DAMAGES, EVEN IF YOU ADVISE THE COMPANY OF THE POSSIBILITY OF SUCH
DAMAGES. THIS IS A FUNDAMENTAL TERM OF THIS AGREEMENT AND YOU ACKNOWLEDGE
THAT THE AMOUNT YOU PAID FOR THE SOFTWARE AND/OR THE PRODUCT REFLECTS THIS
ALLOCATION OF RISK. NOTHING IN THIS PARAGRAPH PURPORTS TO EXCLUDE OR LIMIT THE
COMPANY'S LIABILITY FOR DEATH OR PERSONAL INJURY CAUSED BY NEGLIGENCE OR ANY
OTHER LIABILITY WHICH CANNOT BE EXCLUDED OR LIMITED BY LAW.
5. Other Third-Party Computer Programs: As referred to herein, the term "Software" refers
only to proprietary Midas™ or Klark Teknik™ software, owned by the Company, that has been
provided to you for installation on, or already installed in, a Product. In addition to the Software,
you may have also been provided, at no additional charge, with a version of the widely-available
GNU Linux Operating System, which is a modular operating system made up of hundreds of
individual software components, each of which was written, and the copyright and other rights in
which are owned individually, by various parties (collectively, "the GNU Linux Programs"). Each
component has its own applicable end user licence agreement, and many of these agreements
permit you to copy, modify, and redistribute the applicable software, but you must review the
on-line documentation that shares a directory or otherwise accompanies each of the GNU Linux
Programs provided to you for the specific terms and conditions. Nothing in this Licence limits
your rights under, or grants you rights that supersede, the terms of any other applicable end user
licence agreement. If you wish to receive a computer-readable copy of the source code for any
of the GNU Linux Programs that have been provided with your Midas™ or Klark Teknik™ Product,
send a cheque or money order (no cash accepted), your address and [£10.00] to cover the cost
of optical media, postage and handling, to:
Midas Klark Teknik Limited
ATTN: Linux Programs CD for Midas™/Klark Teknik™
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
In your request, indicate your Product's name and model number, serial number and
version/release information. In your request, also indicate the relevant Software version/release
infor mation. This offer, made pursuant to the GNU Linux Programs' end user licence agreements,
may expire according to the terms of those agreements, in which case your cheque will be
returned to you or destroyed at our option. Please note that the GNU Linux Programs that may
be available to you under this offer consists of the GNU Linux Operating System components only
and none of the proprietary application software developed by Midas or Klark Teknik is included.
Other updated Linux distributions containing application software are widely available from a
variety of Internet sources, and are often available at minimal or no cost.
6. Termination: This Licence will terminate immediately if you violate any of the Licence terms.
Upon termination you must discontinue use of the Software, and either destroy, erase or return
to Company all copies of the Software in your possession, custody or control, including those in
or on the Product.
7. General: This Licence constitutes the entire agreement between you and the Company with
respect to this Software and, save in the case of fraud, supersedes any other communication
(including advertising). Company reserves all rights not expressly granted to you in this licence.
If any provision of this Licence is held unenforceable, that provision shall be enforced to the
maximum extent permissible so as to give effect the intent of this Licence, and the remainder of
this Licence shall continue in full force and effect. This Licence shall be governed by English law
and the Courts of England and Wales will have exclusive jurisdiction to hear and decide any
dispute concerning it or its formation. No breach by you of any provision of this Licence shall be
waived or discharged except with the express written consent of the Company and no failure or
delay by the Company to exercise any of its rights under this Licence shall operate as a waiver
thereof and no single or partial exercise of any such right shall prevent any other or further
exercise of that or any other right. You acknowledge that the Company could be irreparably
damaged if the terms of this Licence were not specifically enforced, and agree that the Company
may seek appropriate equitable remedies with respect to breaches of this Licence, including
injunctive relief, in addition to such other remedies as the Company may otherwise have
available to it under applicable laws.
GNU General Public License (GPL)
For details of the Third Party Software License Attribution, Copyright and Terms and Conditions and
Notices, and the GNU LESSER GENERAL PUBLIC LICENSE, see the Midas Digital Equipment GNU
General Public License (GPL) Booklet part number DOC04-GPL issue A.
xi
Precautions
Before installing, setting up or operating this equipment, make sure that you have read
and fully understand all of this section and the “IMPORTANT SAFETY INSTRUCTIONS” at
the front of this manual.
This equipment is supplied by a mains voltage that can cause electric shock injury!
The following must be observed in order to maintain safety and electromagnetic compatibility (EMC)
performance.
Safety warnings
Signal 0V is connected internally to the
chassis.
To electrically isolate the equipment,
switch off both mains on/off switches at
the rear of unit, one after the other. Make
sure that the power at the mains outlets is
off, and then disconnect both mains cables
from the mains outlets.
To avoid electrical shock do not remove
covers.
The power supplies - even the DC ones have a high current!
General precautions
In the event of ground loop problems,
disconnect the signal screen at one end of the
connecting cables. Note that this can only be
done when the equipment is used within a
balanced system.
Do not remove, hide or deface any warnings or
cautions.
Power
The power supplies contain LETHAL VOLTAGES
greatly in excess of the mains voltage and that
its rails can produce extremely large currents
that could burn out equipment and wiring if
shorted.
The internal power supplies are of the switch
mode type that automatically senses the
incoming mains voltage and will work where the
nominal voltage is in the range 100VAC to
240VAC.
Each mains inlet is to be sourced from its own
separate wall-mounted mains outlet socket.
Otherwise, their mains sources must be suitably
distributed so as to meet local safety
regulations.
Two mains inlets are provided on the rear panel.
The correct leads for connection in the area to
which the unit was shipped are supplied with the
unit. The equipment should only be plugged
into the mains outlets using the supplied leads.
When removing the equipment’s electric plugs
from the outlets, always hold the plug itself and
not the cable. Pulling out the plug by the cable
can damage it.
Never insert or remove an electric plug with wet
hands.
When switching the unit on/off, switch the
mains power switches on/off one at a time. Do
not switch them on/off simultaneously.
Handling the equipment
Completely isolate the equipment electrically
and disconnect all cables from the equipment
before moving it.
When lifting or moving the equipment, always
take its size and weight into consideration. If
necessary, use suitable lifting equipment or
transporting gear, or sufficient additional
personnel.
Do not insert your fingers or hand in any gaps or
openings on the equipment, for example, vents.
Avoid inserting or dropping foreign objects, such
as paper, plastic, metal etc., into any gaps or
openings on the equipment, for example, vents.
If this happens, turn off the power immediately
and unplug the power from the AC outlets.
Then have the equipment inspected by the
manufacturer's qualified service personnel.
DL431 Mic Splitter
Operator Manual
xii Precautions
Installation
Before installing the equipment:
• Make sure the equipment is correctly
connected to the protective earth conductor
of the mains voltage supply of the system
installation through the mains leads.
• Power to the equipment must be via fused
spurs.
• Power plugs must be inserted in socket
outlets provided with protective earth
contacts. The electrical supply at the
socket outlets must provide appropriate
over-current protection.
• Both the mains supply and the quality of
earthing must be adequate for the
equipment.
• Before connecting up the equipment, check
that the mains power supply voltage rating
corresponds with the local mains power
supply. The rating of the mains power
supply voltage is printed on the equipment.
• Mount in rack only.
Location
• Ideally a cool area is preferred not in close
proximity to power distribution equipment
or other potential sources of interference.
• Do not install the equipment in places of
poor ventilation.
• Do not install this equipment in a location
subjected to excessive heat, dust or
mechanical vibration. Allow for adequate
ventilation around the equipment, making
sure that its fans and vents are not
obstructed. To prevent excessive heating of
the equipment, avoid mounting it directly
above power amplifiers or other devices
that radiate significant amounts of heat
such as, radiators and heaters. Keep the
equipment out of direct sunlight.
• Do not place the equipment in an unstable
condition where it might accidentally fall
over.
• Make sure that the mains voltage and fuse
rating information of the equipment will be
visible after installation.
Audio connections
To ensure the correct and reliable operation of
the equipment, only high quality balanced,
screened, twisted pair audio cable should be
used.
XLR connector shells should be of metal
construction so that they provide a screen
when connected to the console and, where
appropriate, they should have Pin 1 connected
to the cable screen.
Radio frequency
interference — Class A
device
This equipment has been tested and found to
comply with the limits for a Class A digital
device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide
reasonable protection against harmful
interference when the equipment is operated
in a commercial environment. 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. Operation of this equipment
in a residential area is likely to cause harmful
interference in which case the user will be
required to correct the interference at his own
expense.
Electric fields
Caution:
In accordance with Part 15 of the FCC
Rules & Regulations, “… changes or
modifications not expressly approved by
the party responsible for compliance
could void the user's authority to operate
the equipment.”
Should this product be used in an
electromagnetic field that is amplitude
modulated by an audio frequency signal (20Hz
to 20kHz), the signal to noise ratio may be
degraded. Degradation of up to 60dB at a
frequency corresponding to the modulation
signal may be experienced under extreme
conditions (3V/m, 90% modulation).
Operation
To avoid electrical shock, never operate the
equipment with the covers removed.
DL431 Mic Splitter
Operator Manual
Precautions xiii
Safety equipment
Never remove, for example, covers, housings
or any other safety guards. Do not operate
the equipment or any of its parts if safety
guards are ineffective or their effectiveness
has been reduced.
Optional equipment
Unless advised otherwise, optional equipment
must only be installed by service personnel
and in accordance with the appropriate
assembly and usage regulations.
Special accessories
To comply with part 15 of the FCC Rules, any
special accessories (that is, items that cannot
be readily obtained from multiple retail
outlets) supplied with this equipment must be
used with this equipment; do not use any
alternatives as they may not fulfil the RF
requirement.
DL431 Mic Splitter
Operator Manual
xiv Precautions
DL431 Mic Splitter
Operator Manual
xv
Contents
Information page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
IMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
EC-Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Licences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xv
Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Warranty and registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
About this manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Intended readers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Package contents/unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Chapter 2 Front Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
mic amp select panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Ethernet control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
AES50 audio panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
psu 1 and psu 2 panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
channel monitor panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
analogue output metering section . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
isolated C outputs section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Chapter 3 Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Rear panel connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 4 Getting Started. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Connecting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Switching on/off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Setting up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Chapter 5 Programming Mode . . . . . . . . . . . . . . . . . . . . . . . . . .13
Menu navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Menu flowchart (menus 1 to 5) . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Menu flowchart (menus 6 and 7) . . . . . . . . . . . . . . . . . . . . . . . . . 16
Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
DL431 Mic Splitter
Operator Manual
xvi Contents
1 MicSplit ID menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
2 AES50 Sync menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3 Local Mode menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4 48V Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
5 AES50 Status menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
7 Reset All menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Chapter 6 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Default display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Adjusting a channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Monitoring a channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Appendix A Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Using the 30Hz filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Appendix B Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . 25
Appendix C Technical Specification . . . . . . . . . . . . . . . . . . . . . . . 27
General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Inputs and outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Analogue inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Analogue outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Digital (system) outputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Appendix D Service Information . . . . . . . . . . . . . . . . . . . . . . . . . 29
Routine maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Yearly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Cleaning the LCD screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Cleaning the internal fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Equipment disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Appendix E XL8 Live Performance System. . . . . . . . . . . . . . . . . . 31
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
System components (standard supply) . . . . . . . . . . . . . . . . . . . . . . .34
System interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
FOH and MON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Mix matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Input channel processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
Mix channel processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Output channel processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Effects processing and GEQs . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Audio physical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Uses of the configurable audio connections . . . . . . . . . . . . . . . . . . . .40
Surround capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Resilience to failure (redundancy) . . . . . . . . . . . . . . . . . . . . . . . . . . .42
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Operator Manual
Contents xvii
Control software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
GUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Console linking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Integration of third party software . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Appendix F Setting Up An XL8 System . . . . . . . . . . . . . . . . . . . . .49
Initial set-up procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Unpacking the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Making up the racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Outboard equipment racks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Stage rack 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Wiring instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
XL8 system interconnections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Cable type and function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Powering the XL8 system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Switching the XL8 Control Centre on/off . . . . . . . . . . . . . . . . . . . . . . 58
Setting up the ID of the DL4n1 units . . . . . . . . . . . . . . . . . . . . . . . . 59
DL431 Mic Splitter
Operator Manual
xviii Contents
DL431 Mic Splitter
Operator Manual
Chapter 1: Introduction
The DL431 Mic Splitter is a six-unit (6U) high 19” rack unit that provides 24 mic/line
inputs. Each input feeds three separate preamps, two of which have separate remote
and local gain controls, while the third has fixed gain. The two preamps with gain
controls feed separate analogue to digital (A/D) converters, which pass digital audio to
the network. Four discrete AES50 outputs supply dual redundant digital audio to front
of house (FOH) and monitor XL8 systems, and allow for easy routing to any third-party
AES50 device, such as a recorder, via DL461 routers.
1
Two balanced analogue splits — sourced from post-each mic amp — are provided on
the rear panel. The third preamp (fixed gain) feeds a transformer isolated split on the
front panel for recording or broadcast applications.
Front panel control and local monitoring, including integral headphone amplifier,
enhance the DL431’s features, and dual redundant internal power supplies ensure
worry-free operation. Four DL431s are supplied with each XL8 system to provide
96 input channels.
Your DL431 Mic Splitter was conceived by Midas to offer audio professionals
high-performance audio equipment, designed to provide no-compromise sonic quality
with a feature set that offers all essential facilities and functions. It represents the very
best of British design and engineering combined with contemporary, efficient
manufacturing methods, and will give you many years of reliable service.
So, to obtain the best results with a minimum of effort, please read this operator
manual and, finally, enjoy your Midas DL431 Mic Splitter!
Features
The DL431 Mic Splitter comprises:
• 24 mic/line inputs.
• Three totally independent preamps per channel.
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Operator Manual
2 Chapter 1: Introduction
• Analogue splits.
• Full metering on every channel.
• Hi pass 30Hz filter option on every channel.
• 48V phantom voltage option on every channel.
• Control panel, with LCD screen, for easy unit configuration and channel set up.
• Two power supply units (PSUs) for dual redundancy.
• Easy routing to third-party AES50 devices.
• Integral headphone amplifier.
Warranty and registration
Midas has total confidence in the quality and reliability of this product. To back this up,
this product comes with the standard Midas and Klark Teknik three year warranty.
Please take the time to register your product by completing and returning the
registration card or registering on our website at www.midasconsoles.com.
About this manual
This is the operation manual for the DL431 Mic Splitter. It is intended to help get your
DL431 Mic Splitter installed and in operation as quickly as possible by giving you
unpacking, installation, connection, programming, setting up and operating
instructions. To help familiarise you with the DL431 Mic Splitter there is a description of
the front and rear panels.
The DL431 Mic Splitter forms an integral part of the XL8 Live Performance System. The
appendices in this manual contain a brief overview of the XL8 Live Performance System
and include system interconnection details. However, if you want to learn more about
the XL8 Live Performance System, see the Owner’s Manual (part number DOC02-XL8),
which provides a full and comprehensive guide.
Intended readers
This manual is aimed at professionals, such as front of house (FOH) and monitor (MON)
engineers who will be using this equipment in a live performance environment. It is
assumed that the reader has prior experience of using professional audio equipment
and has, most likely, undergone training on this system.
However, if you have limited experience on using this type of equipment, perhaps it
might be useful to read through the pertinent sections in the user documentation for
the XL8 Live Performance System before using this equipment. This will provide you
with valuable background information.
Package contents/unpacking
Please retain the original packing for use should you need to transport or ship this unit.
After unpacking, please inspect the unit carefully for any signs of damage that may
have occurred in transit and notify the courier immediately if you feel that any damage
has occurred.
The following items are included in the DL431 Mic Splitter package:
• 1-off DL431 Mic Splitter Safety Sheet (part number DOC04-DL431).
• 1-off Warranty Card (part number DOC04-WARRANTY).
• 2-off mains leads (part number PWR21-MAINSLEADV).
DL431 Mic Splitter
Operator Manual
1
34
5
67
8
9
10
2
Chapter 2: Front Panel
The front panel comprises the following:
3
Item Description
1 Control panel (see “Control panel” on page 4).
2 AES50 audio panel monitors (see “AES50 audio panel” on page 5).
3 analogue output metering section (see “analogue output metering
section” on page 6).
4 isolated C outputs section (see “isolated C outputs section” on page 6).
5 Eight cut-outs for rack mounting fixings.
6 Air intakes for fan cooling. Do not obstruct.
7 Power supply unit monitoring panels psu 1 and psu 2 (see “psu 1 and psu
8 channel monitor panel (see “channel monitor panel” on page 5).
9 Ethernet control panel (see “Ethernet control panel” on page 4).
10 mic amp select panel (see “mic amp select panel” on page 4).
2 panels” on page 5).
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Operator Manual
4 Chapter 2: Front Panel
2
3
4
1
5
Control panel
The control panel has an LCD screen that is used with the three controls underneath
(two buttons and a control knob) for controlling the input channel. In programming
mode the LCD screen shows the menus, which are navigated and selected using the
four programming buttons to the left.
The controls in the control panel are backlit and illuminate to show when they are on or
when pressed.
Item Description
1 LCD screen, comprising 64 characters (4 x 16). The default screen (shown
typically above) is displayed during normal operation.
2 gain steps control knob, for continuous gain adjustment within the range
-2.5dB to +45dB.
3 30Hz switch, switches the 30Hz analogue high pass filter (HPF) on/off.
4 48V switch for switching the 48V phantom voltage on/off.
5 Programming buttons (see “Menu navigation” on page 13).
mic amp select panel
The mic amp select panel has two buttons, A
and B, for selecting mic amp A or mic amp B.
Both buttons have a blue backlight that
illuminates to show that its mic amp is
selected.
Ethernet control panel
The Ethernet control panel has two green LEDs, X and Y, which
indicate network communication status, where:
• Flashing - active master.
• Illuminated - connected.
• Extinguished - not connected.
DL431 Mic Splitter
Operator Manual
AES50 audio panel 5
1 2
3
Headphones
AES50 audio panel
In the AES50 panel, each X and Y channel — on both the A and B
mic amp sections — has a green ok LED and red error LED, which
illuminate when communications to these channels is ok or that
there is an error, respectively.
psu 1 and psu 2 panels
These panels monitor the DL431 Mic Splitter’s
internal supply voltages for each network. The
yellow LEDs illuminate to show that their
respective voltage rails are active. The
voltages are +18V, -18V, +5V, +3.3V and +48V.
channel monitor panel
The channel monitor panel lets you connect headphones and listen to the audio of the
selected input channel.
DL431 Mic Splitter
Operator Manual
Item Description
1 Female XLR line out socket. This monitor line output operates at unity
gain in relation to any input signal applied and has a nominal operating
level of 0dBu. (Unlike the headphone jack this output does not have an
independent level control.)
2 phones socket for connection of a set of headphones.
3 level control knob for adjustment of the headphones in the range
4 (infinity) to +10dB.
6 Chapter 2: Front Panel
1
2
3
4
x24
analogue output metering section
The analogue output metering section has 24 panels each of which monitors a
specific analogue output channel.
Item Description
1 SELECT switch for selecting the channel; illuminates green to show when
channel is selected.
2 30Hz filter on/off LED indicator; illuminates green to show that it is on for
that channel.
3 48V phantom voltage on/off LED indicator; illuminates red to show that it is
on for that channel.
4 Seven-segment LED meter displays the output level in the range -18dB to
+24dB in 6dB steps.
isolated C outputs section
This section contains 24 isolated output sockets for
connection of female XLR connectors, typically used for
broadcast feeds.
DL431 Mic Splitter
Operator Manual
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