HELIX SYSTEM
DN9340 / DN9344
OPERATORS MANUAL
DN9340 Software V2.02
DN9344 Software V2.01
Klark Teknik Group,
Klark Teknik Building,
Walter Nash Road,
Kidderminster.
Worcestershire.
DY11 7HJ.
England.
Tel:+44 1562 741515
Fax:+44 1562 745371
Email: sales@ktgplc.com
Website: www.klarkteknik.com
IMPORTANT SAFETY INSTRUCTIONS
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK,
DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE
AVIS: RISQUÉ DE CHOC ELETRIQUE. NE PAS OUVRIR
These symbols are internationally accepted symbols that warn of potential hazards with
electrical products.
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 equilateraltriangle is intended to alert
the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the appliance.
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 manufacturers
instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus 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 third prong are provided for your safety. When 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. Unplug this apparatus during lightning storms or when unused for long periods of time.
12. Refer all testing to qualified personnel. Servicing isrequiredwhentheapparatusisdamagedinany 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,orhasbeendropped.
Walter Nash Road, Kidderminster, Worcestershire. DY11 7HJ. England
Tel: +44 1562 741515. Fax: +44 1562 745371
Company Registration No: 2414018
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SIGNAL PROCESSING BY DEFINITION DESIGNEDFOR APUREPERFORMANCE
DECLARATION OF CONFORMITY
Klark Teknik Group (UK) PLC
We,
of, Klark Teknik Building, Walter Nash Road, Kidderminster, Worcestershire, DY11 7HJ
Declare that a sample of the following product:-
Product Type Number Product Description Nominal Voltage (s) Current Freq
DN9340 Digital Equaliser 115V AC 200mA
DN9344 230V AC
100mA
to which this declaration refers, is in conformity with the following directives and/or standards:-
Directive(s) Test Standard(s)
89/336/EEC Electromagnetic Compatibility Directive
amended by 92/31/EEC & 93/68/EEC 73/23/EEC,
Low Voltage Directive, amended by 93/68/EEC
Generic Standard Using EN50130 Limits and Methods EN50081/1
Class B Conducted Emissions
Class B Radiated Emissions
EN50130
EN50130
Fast Transient Bursts at 2kV EN61000-4-4
Static Discharge at 4kV EN61000-4-2
Electrical Stress Test EN60204
Electrical Safety UL6500-99
E60065-00
50/60Hz
Signed:............................
Date: 24th April 2003
Name: Simon Harrison
Authority: R&D Director, Klark Teknik Group (UK) PLC
Attention!
Where applicable, the attention of the specifier, purchaser, installer or user is drawn to special limitations of use
which must be observed when these products are taken into service to maintain compliance with the above
directives. Details of these special measures and limitations to use are available on request and are available
in product manuals.
A Subsidiary of Telex communications, Inc.
Contents
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Thank you for using a Klark Teknik product
After you have unpacked
Quick reference
Introduction and key features
Identification of controls: DN9340
Connections: DN9340
Signal flow: DN9340
Operation: DN9340
Home page 17
Graphic equalisation 19
Parametric equalisation 22
T-DEQ
Dynamic equalisation 24
Filters 26
Storing and recalling settings 28
Setup menu 29
Metering 30
Clear down sequence 31
1
3
5
7
9
13
15
Remote Control
Identification of controls: DN9344
Signal flow: DN9344
Operation: DN9344
Remote Control Mode 42
Contact Closure (RELAY) Mode 43
Stand Alone Mode 44
Application notes:
Application note 1: dynamic EQ 45
T-DEQ
Application note 2: What do we mean by all these Q types? 48
Technical specifications: DN9340
Technical specifications: DN9344
Service Information
32
37
41
51
52
53
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.
The Klark Teknik Helix System
Thank you for selecting the Klark Teknik Helix System digital equaliser. The equaliser continues the Klark
Teknik tradition of providing superb audio performance, technical accuracy and rugged reliability. At the
same time it offers unprecedented levels of flexibility by incorporating graphic, parametric and dualthreshold dynamic equalisation ( ) in a single unit. In view of this flexibility we hope that you will
spend a little time to read this manual, as this will allow you to obtain the very best results with minimum
effort. Wealso draw youattention to the“Important safety information” page at the beginningof the manual.
For those of you in a hurry, the quick reference guides are on pages 5 and 6.
T-DEQ
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Precautions
Do not install this unit in a location subjected to excessiveheat, dust or mechanical vibration.
Voltage Selectionand PowerConnection
Connection is made by means of anIEC standard powersocket. The rear panel text indicatesthe voltage range
required for satisfactory operation of the unit.
Before connecting this unit to the mains supply, ensure the fuse fitted is the correct type and rating is as
indicated on the rear panel, adjacent to the fuse holder.
Safety Warning
This unit is fitted with a standard fused IEC mains inlet: For safety reasons the earth lead should never be
disconnected.
To prevent shock or fire hazard, do not expose the unit to rain or moisture. To avoid electrical shock do not
remove covers. Refer servicing to qualified personnel only.
Attention! Cables
This product should only be used with high quality, screened twisted pair audio cables, terminated with metal
bodied 3-pin XLR connectors. Any other cable type or configuration for the audio signals may result in
degraded performance due to electromagnetic interference.
Electric Fields:
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).
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2
After You Have Unpacked The Unit
Save all the packing materials - they will prove valuable should it become necessary to transport or ship this
product.
Please inspect this unit carefully for any signs of damage incurred during transportation. It has undergone
stringent quality control inspectionand every possible effort has been made to ensure that it left the factory in
perfect condition.
If, however, the unit shows any signs of damage, please notify the transportation company without delay.
Only you, the consignee, may institute a claim against the carrier for damage during transportation.
If necessary, contact your supplier or as a last resort, your Klark Teknik importing agent, who will fully cooperate under such circumstances.
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Side Up
This
KIDDERMINSTER ENGLAND
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4
Quick reference: DN9340
Power ON indication.
The left, centre and right encoder knobs used for controlling values and selecting
options.
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Power switch.
Output metering incorporating multi-point
clip indication.
Alphanumeric display - this showsparameter
values for the current function being
controlled by theencoder knobs.
Soft keys for selecting options and secondary
functions.
This area of the main graphic display labels
the soft key functions. Typically these
include “select” to choose a particular filter,
and “menu” to step round a circular choice of
options for that type of EQ. On the home
page these buttons access the gain, delay,
naming and markerfunctions.
T-DEQ
Input metering incorporating multi-point clip
indication.
HOME(SETUP) key. Press once to return to
the home page. Once on the home page, press
and hold for one second to access the Setup
menu. Step through the Setup menu (and exit
after the last item) by repeatedly pressing this
key.
STORE and RECALL keys. Used to store
complete unit settings to one of the 64
memory locations andthen to recallthem.
PC port connector. Use with the supplied
cable to install software updates or to control
the unit froman external computer.
dynamic EQ metering.
Main graphic display - this shows the
frequency response of the selected type of
EQ, or theoverall response onthe home page.
EQ active lights - these show if a particular
type of EQ is currently affecting the overall
frequency response.
Access keys to control each type of
equalisation - press HOME(SETUP) key to
return to thehome page.
If you have received the unit in an unknown
state, and wish to clear it down to ensure
that no EQ is active, please refer to the
information on page 29.
Two part touchstrip. Press either part briefly
to select a particular filter or fader. In
Graphic EQ mode, press and hold to increase
the level (upper strip) or reduce it (lower
strip).
Channel select key. Press to select either
channelAor B for control. If the unit is linked
for stereo operation then both indicators will
be lit.
Bypass key - on the home page this bypasses
the complete unit for the selected channel
(both channels if linked). When a particular
EQ type is selected (by the keys above the
bypass switch), the bypass operates on that
type of EQonly.
5
Quick reference: DN9344
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Power on indicator.
The large red alphanumeric displays can be used to
show electronic scribble-strip information, Last
Memory Recalled, andCommunications Mode.
Display mode indicator (blue) for Section 2. When lit
this indicates that the large red displays are now
showing Last Memory Recalled and
Communications Mode. When not lit, the displays
are showing electronic scribble-strip names. In this
case the left-hand three characters show the name of
Channel A and the right-hand three the name of
Channel B.
Power switch.
Section 2 output metering incorporating multi-point
clip indication.
Section 2 dynamic EQ metering.
Section 2 input metering incorporating multi-point
clip indication.
UP and DOWN keys for Section 2. Used to select
communications channel (address) for remote control
and also contact closure mode. Active only when in
SETUPmenu.
Communications traffic indicators. These indicate
when there is activity on any of the external
interfaces. Transmit and receive data are shown for
front panel (RS-232) and rear panel (RS-485) data,
and also thecontact closure (RELAY) input.
T-DEQ
SETUP key. Press and hold to enter SETUP menu. A
momentary press toggles between the electronic
scribble-strip displays and display of Last Memory
Recalled and Communications Mode.
Communications Mode isnot editable when display is
accessed this way.
UP and DOWN keys for Section 1. Used to select
communications channel (address) for remote
control and also contact closure mode. Active only
when in SETUPmenu.
Display mode indicator (blue) for Section 1. When lit
this indicates that the large red displays are now
showing Last Memory Recalled and
Communications Mode. When not lit, the displays
are showing electronic scribble-strip names. In this
case the left-hand three characters show the name of
Channel A and the right-hand three the name of
Channel B.
PC port connector. Use with the supplied cable to
install software updates or to control the unit from an
external computer.
Section 1 output metering incorporating multi-point
clip indication.
Section 1 dynamic EQ metering.
Section 1 input metering incorporating multi-point
clip indication.
Scribble-strip areas to allow easy labelling of the unit.
Use only chinagraph pencils to avoid permanently
marking the unit. Remove chinagraph markings by
wiping with a soft cloth. Do not use solvents as these
may damage thesurface.
T-DEQ
Remote ControlActive indicator (green) for Channel
1A. This shows that that the master unit is currently
controlling this channel by remote control. Often
referred to asthe “me” light.(repeat for 1B/2A/2B).
6
Introduction and key features
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The Klark Teknik DN9340 Helix equaliser is a two-channel audio equaliser packaged in a 2RU, 19” rackmounting format. The two channels can be controlled independently as two separate mono equalisers or
linked for stereo operation. The unit has been designed to build on Klark Teknik's unrivalled reputation for
high quality equalisation whilst addressing a number of limitations in more conventional products.
The Klark Teknik DN9344 Helix Slave equaliser is a 1U slave version of the DN9340 unit. By packaging
FOUR channels of Helix processing into a 1U case it offers unrivalled space efficiency, with a cost per
channel lower than many less flexible products. The DN9344 can be controlled from a master DN9340 unit
or by an external computer, and also has provision for contact closure operation.
Simultaneous availability of graphic and parametric equalisation.
·
In addition to the obvious
advantages of a dual-purpose unit, this allows the engineer to separate out different sections of
equalisation. For example, during setup and any soundcheck, the parametric mode can be used to set
a basic EQ for the venue, with maximum flexibility. Once the show starts, however, the engineer can
flip to graphic mode, which now starts off from a`flat' baseline. Any problems that needfast attention
during the show can now be addressed using the speed of operation of graphic EQ, and without
confusion between the `showtime' EQ and the original venue setup. At any time, a quick look at the
home page will show the true overall response of the unit.
Threshold Dependent Dynamic EQ ( ).
·
T-DEQ
Over the years a number of dynamic EQ products
have been introduced. These typically resemble a combination of a dynamics processor and an
equaliser. This approach has the disadvantage that whilst it is usually fairly easy to determine the
level at which the dynamic EQ willstart to operate, itis much harder to visualisethe likely effect as the
system is pushed harder or to set a maximum amount of EQ. The unique system developed by
T-DEQ
Klark Teknik with its dual thresholds provides unrivalled clarity of operation making this a very
practical tool.
Speed of operation.
·
Since the advent of digital signal processors, it has been possible to pack ever
more functions into smaller boxes. However, if a function is buried in a hard-to-find sub-menuwhich
is only accessible after navigating a complex series of button presses, it may as well not be included.
In live production theoperation ofthe unit is as crucial as the sound quality, and this is a key part of the
Helix design. The 2RU format permits a large graphic LCD display, and a second alphanumeric
display provides clear value readouts above the control knobs without using up space on the main
LCD. Dedicated selection buttons for the main functions, clear LED indicators, and no less that 8
separate bargraph meters ensure that the unit is fast and accuratein operation. The unique two-section
touchstrip provides instant access to filters andfaders, so that Helix providesthe same feeling ofbeing
“in control” familiar to users of Klark Teknik analogue graphic equalisers.
·
Space efficiency.
The Helix system allows exceptionally compact EQ systems to be assembled. For
example, one DN9340 and six DN9344 units would provide 26 channels of EQ, each with graphic,
parametric, and dynamic EQ, plus flexible filters, all in 8U of rackspace.
·
Interface to Midas consoles.
To further enhance the speed of operation of the Helix system, an
interface is provided which connects to Midas Heritage and Legend series consoles. This allows
the EQ system to be controlled automatically from the solo system of the console, ensuring that
the correct EQ device is always ready for instant access.
7
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8
Identification of controls:DN9340
labels the soft key functions. Typically
This area of the main graphic display
these include “select” to choose a
a circular choice of options for that type of
particular filter, and “menu” to step round
new filters (parametric and filter modes
EQ. Additional functions include adding
only) and selecting an individual fader or
filter to be in or out. On the home page
naming and markerfunctions.
these buttons access the gain, delay,
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frequency response of the selected type of
Main graphic display - this shows the
EQ active lights - these show if a
particular type of EQ is currently
page. Along the top edge is the name of
EQ, or the overall response on the home
affecting the overall response. Note that
this is not just an indication of the bypass
status (bypass) of each type of EQ and the
the current working memory, the in/out
state. For example, if all the faders on the
graphic EQ are flat, then the light will not
unit name.
be lit. If the graphic is not bypassed, and
then a fader is moved away from zero, the
light will now light to indicate that the
response is now being affected by the
graphic. This is particularly useful on the
home page where it can be quickly seen
what is contributing to the overall
dynamic and filters. Pressing one of
equalisation; graphic, parametric,
Access keys to control each type of
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these keys selects the type of EQ to be
controlled. These keys do not affect the
actual sound at all - they just activate the
controls. The large display will change to
and the “type” bypass LED will indicate
show the display for the selected EQ type,
whether this section is bypassed or not.
The keys illuminate to show which type
the HOME(SETUP) key to return to the
of EQ is currently being controlled. Press
system response.
home page, which will show the overall
Identification of controls:DN9340
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Alphanumeric display - this shows
parameter values for the current function
Soft keys for selecting options and
secondary functions. These keys
being controlled by the encoder knobs. In
illuminate to indicate whether they are
labelling is directly above the relevant
general, when setting parameters the
active in aparticular mode ornot.
knob, with the title on the top row and the
value on thebottom row.
When selecting options or entering text,
the top row shows the title and the knob
functions separated by commas, with the
status on thebottom row.
Channel select key. Press to select either
Bypass key - on the home page this
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channel A or B for control. If the unit is
linked for stereo operation then both
selected channel (both channels if linked).
bypasses the complete unit for the
indicators will be lit and the key will be
inoperative.
bypass operates onthat type ofEQ only.
the keys above the bypass switch), the
When a particular EQ type is selected (by
Identification of controls:DN9340
used for controlling values and selecting
The left, centre and right encoder knobs -
options. Each knob is surrounded by an
that the knobis active inthe current mode.
illuminated blue ring which lights to show
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HOME(SETUP) key. Press once to return
to the home page from any of the
complete unit settings to one of the 64 user
STORE and RECALLkeys. Used to store
individual EQ pages. Once on the home
page, press and hold for one second to
In addition to user memories settings may
memory locations and then to recall them.
access the setup menu. Step through the
be recalled from “preset” memories that
setup menu (and exit after the last item) by
can only be manipulated by means of an
repeatedly pressing this key. The
external computer.
HOME(SETUP) key is also used to abort
from STORE andRECALLoperations.
11
Two part touchstrip. The touchstrip is
and can also be used to adjust gain
used to select individual faders or filters
a particular filter or fader. Press and hold
settings. Press either part briefly to select
or tap repeatedly to increase the level
Note that the lower strip is wider than the
(upper strip) or reduce it (lower strip).
upper and lower strips simultaneously
more urgent to reduce gain... Pressing
upper one to reflect that it is generally
allows the creation of fader groups.
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