Manual 2.0
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Wichtige Sicherheitshinweise!
Bitte vor Gebrauch lesen und für späteren Gebrauch
aufbewahren!
• Read all of these instructions!
• Save these instructions for later use!
•Follow all warnings and instructions marked on the product!
• Do not use this product near water, i.e. bathtub, sink, swimming pool,
wet basement, etc.
• Do not place this product on an unstable cart, stand or table. The product may
fall, causing serious damage to the product or to persons!
• Slots and openings in the cabinet and the back or bottom are provided for
ventilation; to ensure reliable operation of the product and to protect it from
overheating, these openings must not be blocked or covered. This product should
not be placed in a built-in installation unless proper ventilation is provided.
• This product should not be placed near a source of heat such as a stove,
radiator, or another heat producing amplifier.
• Use only the supplied power supply or power cord. If you are not sure of the
type of power available, consult your dealer or local power company.
• Do not allow anything to rest on the power cord. Do not locate this product
where persons will walk on the cord.
• Never break off the ground pin on the power supply cord.
• Power supply cords should always be handled carefully. Periodically check cords
for cuts or sign of stress, especially at the plug and the point where the cord
exits the unit.
• The power supply cord should be unplugged when the unit is to be unused for
long periods of time.
• If this product is to be mounted in an equipment rack, rear support should be
provided.
• This product should be used only with a cart or stand that is recommended by
HK AUDIO
®
.
• Never push objects of any kind into this product through cabinet slots as they
may touch dangerous voltage points or short out parts that could result in risk
of fire or electric shock. Never spill liquid of any kind on the product.
• Do not attempt to service this product yourself, as opening or removing covers
may expose you to dangerous voltage points or other risks. Refer all servicing
to qualified service personnel.
• Clean only with dry cloth.
• 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 the safety. If the provided plug does not fit into
your outlet, consult an electrician for replacement of the obsolete outlet.
• Unplug this product from the wall outlet and refer servicing to qualified service
personnel under the following conditions:
• When the power cord or plug is damaged or frayed.
• If liquid has been spilled into the product.
• If the product has been exposed to rain or water.
• If the product does not operate normally when the operating instructions are
followed.
• If the product has been dropped or the cabinet has been damaged.
• If the product exhibits a distinct change in performance, indicating a need of
service!
• Adjust only these controls that are covered by the operating instructions since
improper adjustment of other controls may result in damage and will often
require extensive work by a qualified technician to restore the product to
normal operation.
• Exposure to extremely high noise levels may cause a permanent hearing loss.
• Individuals vary considerably in susceptibility to noise induced hearing loss, but
nearly everyone will lose some hearing if exposed to sufficiently intense noise
for a sufficient time. The U.S. Government´s Occupational Safety and Health
Administration (OSHA) has specified the following permissible noise level
exposures:
Duration Per Day In Hours Sound LeveldBA, Slow Response
890
692
495
397
2 100
1 1/2102
1 105
1/2 110
1/4 or less 115
• According to OSHA, any exposure in excess of the above permissible limits
could result in some hearing loss.
• Ear plug protectors in the ear canals or over the ears must be worn when operating
this amplification system in order to prevent a permanent hearing loss if exposure
is in excess of the limits as set forth above. To ensure against potentially
dangerous exposure to high sound pressure levels, it is recommended that all
persons exposed to equipment capable of producing high sound pressure levels
such as this amplification system be protected by hearing protectors while this
unit is in operation.
•Fuses: Replace with IEC 127 (5x 20 mms) type and rated fuse for best
performance only.
TO PREVENT THE RISK OF FIRE AND SHOCK HAZARD, DO NOT EXPOSE
THIS APPLIANCE TO MOISTURE OR RAIN. DO NOT OPEN CASE;
NO USER SERVICE-ABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
• The unit has been built by HK AUDIO
®
in accordance with IEC 60065 and left
the factory in safe working order. To maintain this condition and ensure nonrisk operation, the user must follow the advice and warning comments found in
the operating instructions. The unit conforms to Protection Class 1 (protectively
earthed).
• HK AUDIO®ONLY GUARANTEE THE SAFETY, RELIABILITY AND EFFICIENCY
OF THE UNIT IF:
• Assembly, extension, re-adjustment, modifications or repairs are carried out by
HK AUDIO®or by persons authorized to do so.
• The electrical installation of the relevant area complies with the requirements
of IEC (ANSI) specifications.
• The unit is used in accordance with the operating instructions.
• The unit is regularly checked and tested for electrical safety by a competent
technician.
WARNING:
• If covers are opened or sections of casing are removed, except where this can
be done manually, live parts can become exposed.
• If it is necessary to open the unit this must be insulated from all power sources.
Please take this into account before carrying out adjustments, maintenance,
repairs and before replacing parts.
• The appliance can only be insulated from all power sources if the mains
connection is unplugged.
•Adjustment, maintenance and repairs carried out when the unit has been opened
and is still live may only be performed by specialist personnel who are authorized
by the manufacturer (in accordance with VBG 4) and who are aware of the
associated hazards.
• Loudspeaker outputs which have the IEC 417/5036 symbol (Diagram 1, below)
can carry voltages which are hazardous if they are made contact with. Before
the unit is switched on, the loudspeaker should therefore only be connected
using the lead recommended by the manufacturer.
• Where possible, all plugs on connection cables must be screwed or locked onto
the casing.
• Replace fuses only with IEC127 type and specified ratings.
• It is not permitted to use repaired fuses or to short-circuit the fuse holder.
• Never interrupt the protective conductor connection.
• Surfaces which are equipped with the "HOT" mark (Diagram 2, below), rear
panels or covers with cooling slits, cooling bodies and their covers, as well as
tubes and their covers are purposely designed to dissipate high temperatures
and should therefore not be touched.
• High loudspeaker levels can cause permanent hearing damage. You should
therefore avoid the direct vicinity of loudspeakers operating at high levels.
Wear hearing protection if continuously exposed to high levels.
MAINS CONNECTION:
• The unit is designed for continuous operation.
• The set operating voltage must match the local mains supply voltage.
• The unit is connected to the mains via the supplied power unit or power cable.
• Power unit: Never use a damaged connection lead. Any damage must be rectified
by a competent technician.
•Avoid connection to the mains supply in distributor boxes together with several
other power consumers.
• The plug socket for the power supply must be positioned near the unit and
must be easily accessible.
PLACE OF INSTALLATION:
• The unit should stand only on a clean, horizontal working surface.
• The unit must not be exposed to vibrations during operation.
• Keep away from moisture and dust where possible.
• Do not place the unit near water, baths, wash basins, kitchen sinks, wet areas,
swimming pools or damp rooms. Do not place objects containing liquid on the
unit - vases, glasses, bottles etc.
• Ensure that the unit is well ventilated.
• Any ventilation openings must never be blocked or covered. The unit must be
positioned at least 20 cm away from walls. The unit may only be fitted in a rack
if adequate ventilation is ensured and if the manufacturer's installation instructions are followed.
• Keep away from direct sunlight and the immediate vicinity of heating elements
and radiant heaters or similar devices.
• If the unit is suddenly moved from a cold to a warm location, condensation can
form inside it. This must be taken into account particularly in the case of tube
units. Before switching on, wait until the unit has reached room temperature.
• Accessories: Do not place the unit on an unsteady trolley, stand, tripod, base or
table. If the unit falls down, it can cause personal injury and itself become damaged.
Use the unit only with the trolley, rack stand, tripod or base recommended by
the manufacturer or purchased together with the unit. When setting the unit
up, all the manufacturer's instructions must be followed and the setup accessories
recommended by the manufacturer must be used. Any combination of unit and
stand must be moved carefully. A sudden stop, excessive use of force and uneven
floors can cause the combination of unit and stand to tip over.
• Additional equipment: Never use additional equipment which has not been
recommended by the manufacturer as this can cause accidents.
•To protect the unit during bad weather or when left unattended for prolonged
periods, the mains plug should be disconnected. This prevents the unit being
damaged by lightning and power surges in the AC mains supply.
Diagram 1 Diagram 2
• Das Gerät wurde von HK AUDIO®gemäß IEC 60065 gebaut und hat das Werk
in sicherheitstechnisch einwandfreiem Zustand verlassen. Um diesen Zustand
zu erhalten und einen gefahrlosen Betrieb sicherzustellen, muss der Anwender
die Hinweise und die Warnvermerke beachten, die in der Bedienungsanleitung
enthalten sind. Das Gerät entspricht der Schutzklasse I (schutzgeerdet).
• DIE SICHERHEIT, ZUVERLÄSSIGKEIT UND LEISTUNG DES GERÄTES WIRD
VON HK AUDIO®NUR DANN GEWÄHRLEISTET, WENN:
• Montage, Erweiterung, Neueinstellung, Änderungen oder Reparaturen von
HK AUDIO®oder von dazu ermächtigten Personen ausgeführt werden.
• die elektrische Installation des betreffenden Raumes den Anforderungen von
IEC (ANSI)-Festlegungen entspricht.
• das Gerät in Übereinstimmung mit der Gebrauchsanweisung verwendet wird.
WARNUNG:
•Wenn Abdeckungen geöffnet oder Gehäuseteile entfernt werden, außer wenn
dies von Hand möglich ist, können Teile freigelegt werden, die Spannung führen.
•Wenn ein Öffnen des Gerätes erforderlich ist, muss das Gerät von allen Spannungsquellen getrennt sein. Berücksichtigen Sie dies vor dem Abgleich, vor
einer Wartung, vor einer Instandsetzung und vor einem Austausch von Teilen.
•Ein Abgleich, eine Wartung oder eine Reparatur am geöffneten Gerät unter
Spannung darf nur durch eine vom Hersteller autorisierte Fachkraft (nach VBG
4) geschehen, die mit den verbundenen Gefahren vertraut ist.
• Lautsprecher-Ausgänge, die mit dem IEC 417/5036-Zeichen (Abb.1, s.unten)
versehen sind können berührungsgefährliche Spannungen führen. Deshalb vor
dem Einschalten des Gerätes Verbindung nur mit dem vom Hersteller empfohlenen Anschlusskabel zum Lautsprecher herstellen.
• Alle Stecker an Verbindungskabeln müssen mit dem Gehäuse verschraubt oder
verriegelt sein, sofern möglich.
• Es dürfen nur Sicherungen vom Typ IEC 127 und der angegebenen Nennstromstärke verwendet werden.
•Eine Verwendung von geflickten Sicherungen oder Kurzschließen des Halters ist
unzulässig.
• Niemals die Schutzleiterverbindung unterbrechen.
• Oberflächen, die mit dem "HOT"-Zeichen (Abb.2, s.unten) versehen sind, Rükkwände oder Abdeckungen mit Kühlschlitzen, Kühlkörper und deren Abdeckungen, sowie Röhren und deren Abdeckungen können im Betrieb erhöhte Temperaturen annehmen und sollten deshalb nicht berührt werden.
• Hohe Lautstärkepegel können dauernde Gehörschäden verursachen.
Vermeiden Sie deshalb die direkte Nähe von Lautsprechern, die mit hohen
Pegeln betrieben werden. Verwenden Sie einen Gehörschutz bei dauernder
Einwirkung hoher Pegel.
NETZANSCHLUSS:
• Das Gerät ist für Dauerbetrieb ausgelegt.
• Die eingestellte Betriebsspannung muss mit der örtlichen Netzspannung
übereinstimmen.
• Der Anschluss an das Stromnetz erfolgt mit dem mitgelieferten Netzteil oder
Netzkabel.
• Netzteil: Eine beschädigte Anschlussleitung kann nicht ersetzt werden.
Das Netzteil darf nicht mehr betrieben werden.
•Vermeiden Sie einen Anschluss an das Stromnetz in Verteilerdosen zusammen
mit vielen anderen Stromverbrauchern.
• Die Steckdose für die Stromversorgung muss nahe am Gerät angebracht und
leicht zugänglich sein.
AUFSTELLUNGSORT:
• Das Gerät sollte nur auf einer sauberen, waagerechten Arbeitsfläche stehen.
• Das Gerät darf während des Betriebs keinen Erschütterungen ausgesetzt sein.
•Feuchtigkeit und Staub sind nach Möglichkeit fernzuhalten.
• Das Gerät darf nicht in der Nähe von Wasser, Badewanne, Waschbecken,
Küchenspüle, Nassraum, Swimmingpool oder feuchten Räumen betrieben
werden. Keine mit Flüssigkeit gefüllten Gegenstände -Vase, Gläser, Flaschen
etc. auf das Gerät stellen.
• Sorgen Sie für ausreichende Belüftung der Geräte.
•Eventuelle Ventilationsöffnungen dürfen niemals blockiert oder abgedeckt
werden. Das Gerät muß mindestens 20 cm von Wänden entfernt aufgestellt
werden. Das Gerät darf nur dann in ein Rack eingebaut werden, wenn für
ausreichende Ventilation gesorgt ist und die Einbauanweisungen des Herstellers eingehalten werden.
•Vermeiden Sie direkte Sonneneinstrahlung sowie die unmittelbare Nähe von
Heizkörpern und Heizstrahlern oder ähnlicher Geräte.
•Wenn das Gerät plötzlich von einem kalten an einen warmen Ort gebracht wird,
kann sich im Geräteinnern Kondensfeuchtigkeit bilden. Dies ist insbesondere
bei Röhrengeräten zu beachten. Vor dem Einschalten solange warten bis das
Gerät Raumtemperatur angenommen hat.
• Zubehör: Das Gerät nicht auf einen instabilen Wagen, Ständer, Dreifuß, Untersatz oder Tisch stellen. Wenn das Gerät herunterfällt, kann es Personenschäden
verursachen und selbst beschädigt werden. Verwenden Sie das Gerät nur mit
einem vom Hersteller empfohlenen oder zusammen mit dem Gerät verkauften
Wagen, Rack, Ständer, Dreifuß oder Untersatz. Bei der Aufstellung des Gerätes
müssen die Anweisungen des Herstellers befolgt und muss das vom Hersteller
empfohlene Aufstellzubehör verwendet werden. Eine Kombination aus Gerät
und Gestell muss vorsichtigt bewegt werden. Plötzliches Anhalten, übermäßige
Kraftanwendung und ungleichmäßige Böden können das Umkippen der Kombination aus Gerät und Gestell bewirken.
• Zusatzvorrichtungen: Verwenden Sie niemals Zusatzvorrichtungen, die nicht
vom Hersteller empfohlen wurden, weil dadurch Unfälle verursacht werden
können
• Zum Schutz des Gerätes bei Gewitter oder wenn es längere Zeit nicht beaufsichtigt oder benutzt wird, sollte der Netzstecker gezogen werden.
Dies verhindert Schäden am Gerät aufgrund von Blitzschlag und Spannungsstößen im Wechselstromnetz.
Abb.1 Abb.2
Important Safety Instructions
Before connecting, read instructions
Important Advice on Safety!
Please read before use and keep for later use!
Version 1.0 10/2004
D.A.R.T Manual 2.0
Welcome to the
HK AUDIO
®
family!
Thank you for choosing (another) HK AUDIO
®
product.
D.A.R.T is an all-in-one monitoring solution comprising
loudspeakers, power amps, and integrated control
circuitry painstakingly fine-tuned specifically for
these components.
In their quest for superior audio performance,
our engineers went so far as to develop new
technologies specifically for D.A.R.T. Five unique
features make D.A.R.T by HK AUDIO®stand out
in the crowd of powered monitor cabinets.
Guarantee
Register your D.A.R.T using the enclosed registration
card and your warranty will be extended by five years
free of charge!
Use the convenient Online Registration on
www.hkaudio.com.
If you cannot register online, please fill out the
enclosed guarantee card completely, and send it to
us by post or fax. The registration is only valid if the
fully completed registration card is sent to
HK AUDIO®within 30 days of the date of purchase,
or if registration via the Internet has been effected
within the period stipulated. Furthermore, we would
like to know more about who uses our equipment
and where. This information supports future product
development. Your personal data is, of course,
assured by data protection.
Thank you!
HK AUDIO
®
Technical Service
Postfach 1509
66595 St. Wendel
Germany
Contents
1 D.A.R.T Control Features . . . . . . . . . . . . . . . . . . 6
2 Setting Up and Connecting D.A.R.T . . . . . . . . . 7
3 Operating the System Safely . . . . . . . . . . . . . . . 7
4 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
5 Aligning D.A.R.T on Speaker Stands . . . . . . . . . 8
6Tips and Tricks . . . . . . . . . . . . . . . . . . . . . . . . . 8
7Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 9
8Technical Specifications . . . . . . . . . . . . . . . . . . 9
5
English
Digital amping
More efficiency and dynamics.
With an extremely high efficiency of over 90%
Class-D digital amps are considerably smaller,
lighter, and more compact than conventional amps.
The lower thermal load of the components enhances
reliability. The considerably faster slew rate and the
higher damping factor are audible in the system’s
transient response and more accurate performance.
OFR™
Optimized Frequency Response Technology
HK AUDIO’s unique OFR™ technology deliver
commanding yet well-balanced sound at every level.
It corrects for non-linear frequency response in
the speaker components at the same time as it
compensates for the way human hearing works
at varying levels.
MultiBand Limiting
Specialized limiting for each frequency range
Several limiters, each specializing in its own
frequency range, work side by side to keep the entire
system under control. This ensures even dynamic
response and punchy projection for a highly musical
sound across the entire frequency spectrum.
Subsonic Filter
Preventing Low Frequency Interference
The integrated subsonic filter eliminates accidental
and unintentional signals such footfalls, wind, or the
sound of a hand accidentally brushing a microphone.
It cuts these frequencies drastically, freeing energy
to render bass impulses better. Goodbye squashed
dynamics and artificial sound, hello authenticity and
natural sounding low/mid frequencies.
DuoTilt™
Making the most of sonic energy
The new DuoTilt™ speaker stand mounting collars
allow for a more efficient use of sound energy.
With two possible downward angles (7,5°, 15°)
to better aim the satellite speakers directly at the
audience, troublesome ceiling reflections are
minimized for a tighter, clearer sound.
D.A.R.T Manual 2.0
1 D.A.R.T Control Features
1 Gain Mic In
Twist this knob to adjust the microphone’s level.
Note: You can adjust the microphone and line
inputs separately and mix them as desired.
2 Mic In
This electronically balanced XLR input is designed
to take a microphone. (pin 1= ground, 2= +, 3= -).
3 Gain Line In
This knob lets you adjust the power amp to match
the input signal level; helps you prevent distortion
when you’re patching in signals with higher levels.
4 Line In
Electronically balanced XLR input designed to accept
signals from the output of a mixing console
(pin 1 = ground, pin 2 = +, pin 3 = -).
5 Through
Parallel output for routing the Line signal to other
components, for instance, to additional D.A.R.T
monitors.
6 CD/Tape In
RCA phono jack input for external signal sources
such as CD players or tape decks. The incoming
stereo signal is mixed down to a monaural signal
so that both channels can be rendered.
Use the Gain Line In knob to adjust the
CD/Tape In input level.
7 EQ
Active 2-band tone controls. As expected, High boosts
and cuts treble frequencies, Low boosts and cuts
bass frequencies.
8 Limiter Status LEDs
These tricolor LEDs indicate the operating status
of the MultiBand Limiter; there is one LED for the
1" driver and the 12" speaker.
(green = signal, yellow = soft limit, red = full limit).
Caution! This LED is not a clipping indicator.
If the LED flashes red every now and then, it’s ok.
This simply tells you that the limiter is operating
at full capacity.
9 Ground
Ground lift switch for separating the signal and chassis
ground when you encounter hum. The ground circuit
is severed when you press the button.
Caution: Never tape over the AC plug’s ground
terminal – this endangers lives!
10 Fuse
Mains fuse. This fuse will blow in the event of a
defect or malfunction, cutting D.A.R.T off from the
mains power supply and protecting it from damage.
Replace it with the same type of fuse only.
11 Mains Input
Use the factory-included power cord to connect this
socket to a mains power supply.
Caution: Make sure the local mains voltage matches
the voltage specified on the device. Connecting the
system to the wrong mains voltage will likely destroy
D.A.R.T’s electronic components, and is
not covered under warranty.
12 Power Switch
On/off switch for the D.A.R.T The switch glows red
to indicate that the unit is powered up.
D.A.R.T’s rear panel
1 2 3 4 5 6 7
8 9 10 1211
7
English
2 Setting Up and
Connecting D.A.R.T
Connect the cord that carries the signal from your
mixing console (from its Monitor Out or Line Out, or
a similar labeled output jack) to the balanced Line In.
Use a cord equipped with standard XLR microphone
connectors to do this. Make sure the XLR connectors
have the following pin assignments:
pin 1 = ground, 2 = +, 3 = -.
Connect the cord carrying the signal from your CD player
or tape deck (CD Out, Tape Out, or a similarly labeled
output jack) to the CD/Tape In jack of the D.A.R.T.
Use a cord equipped with RCA phono connectors
to do this.
If you want to connect a microphone directly to
D.A.R.T without plugging into a mixing console, simply
plug an XLR microphone cord into the balanced
Mic In. Make sure the XLR connectors have the
following pin assignments:
pin 1 = ground, 2 = +, 3 = -.
3 Operating the System Safely
Make sure the Power On switch is set to the
Off position.
Caution! Before you plug D.A.R.T into a wall outlet,
ensure your local mains voltage matches the specification indicated on the device’s rear panel. Connecting
D.A.R.T to the wrong mains voltage can result in the
destruction of its electronic components!
Turn the Gain knobs (Gain Line In and Gain Mic) all
the way down (counterclockwise as far as the knobs
will go).
Before powering up D.A.R.T, make sure all other
connected components are turned on first. Everything connected to the mixing console that feeds a
signal into it, such as keyboards, instrument amps,
effects, and so forth, should be switched on first,
then the mixing console, and finally D.A.R.T (and
if D.A.R.T is serving as a monitor, then the main
PA amplifier/s).
Only then should you begin to turn up the Gain from
zero to whatever level you need. The preferred level
when you connect a mixing console to D.A.R.T is to
set the Gain Line In knobs to the center or 12 o’clock
position (= 0 dBV). If you connect a CD player or a
keyboard directly to the D.A.R.T – depending on input
signal level – turn the GAIN knob clockwise all the
way to the far right to achieve maximum volume.
When powering down your system, always turn the
volume back down to zero and switch D.A.R.T off
first, and then proceed to switch off all connected
devices.
4 Settings
Gain Line In Knob
If the signal is distorted or saturated, first check the
signal source and, if possible, reduce the output
signal level there.
If the signal that you are routing to D.A.R.T cannot
be adjusted at the source, adjust D.A.R.T’s power
amp by backing off the Gain Line In knob.
Gain Mic In Knob
Twist this knob to adjust the volume of the microphone.
Note: You can adjust the microphone and line
inputs separately and mix them as desired. If the
signal is distorted or saturated, turn down the
Gain Mic In knob.
Ground Lift Switch
If you encounter low frequency hum, activate the
Ground Lift switch. The ground circuit is severed
when you press the button. If this doesn’t work,
check all cords connected to D.A.R.T and all signals
routed to the mixing console until you pinpoint
the problem.
Caution! Never tape over the AC plug’s ground
terminal – this endangers lives!
EQ
Adjust the sound as desired using the active two-band
tone controls. High boosts and cuts treble frequencies,
Low boosts and cuts bass frequencies.
possible conections
D.A.R.T Manual 2.0
5 Aligning D.A.R.T
on Speaker Stands
The HK AUDIO®DuoTilt™ lets you align D.A.R.T
horizontally to prevent or reduce troublesome
ceiling reflections.
The front opening of the HK AUDIO®DuoTilt™ gives
you a 7.5° angle of tilt, and the rear opening gives
you a 15° angle of tilt.
If you choose to set D.A.R.T on a fully extended cabinet
tripod or mounting pole, insert the pole into the
opening that provides an angle of 15°.
This alignment option is preferable when you want
to address an audience where less listeners
are standing directly in front of the speakers.
If you want to address an audience where more
listeners are farther away from the loudspeakers,
opt for the 7.5° angle.
6 Tips and Tricks
1 Do not expose electronic circuitry to moisture!
When you set the system up outdoors, be sure to
protect it against rain. Keep soft drinks, beer or any
other liquids well away from the cabinets to protect
their electronic components from short circuits,
which could fry them.
2 D.A.R.T delivers optimum sound, so you should
provide it with optimum input signals! Noise such
as hum is generally caused by defective cables, the
wrong type of cords, or unbalanced signals routed
into the mixing console. Check all signal and
mains cables.
3 Prevent distortion! Not only is it unpleasant to the
ears of your audience, it can also endanger your
equipment.
Make sure that all components which are connected (both directly and indirectly) to D.A.R.T have
sufficient power ratings, and that they don’t distort
because they‘re running within their respective limits. Provide an undistorted signal to the system
that doesn’t have to be cleaned up by backing off
the GAIN knob.
4 Avoid ground loops! In spite of a balanced signal
circuit, redundant ground circuits in a single audio
system may generate undesirable humming.
For example, you may encounter a ground loop
when the mixer is grounded via a mains cord
which isn’t connected to the same mains circuit
as D.A.R.T. To prevent this problem, always be sure
to connect D.A.R.T and the mixing console to the
same electrical circuit (same phase!).
If your setup hums despite this precaution, the
Ground Lift switch can be a great help.
Caution! Never tape over the AC plug’s ground
terminal – this endangers lives!
7.5° angle of tilt
D.A.R.T on a speaker stand
15° angle of tilt
9
English
7 Troubleshooting
The Power switch does not light up red after you
switch the system on.
• Check if the mains cord is plugged all the way into
the Mains Input jack.
• Check if the mains power supply is actually providing current.
The Power switch lights up red, but no sound is
coming from D.A.R.T.
• Check the cables that you connected to Line In
and Mic In.
• Check if the signal sources (mixer, keyboard,
CD player) are on.
• Are the Gain Line In or Mic In knobs turned up?
The signal coming from the speaker sounds distorted.
• Check the LED displays at your mixer. They should
not be constantly in the red. If necessary, back off
the volume at the mixer.
• If the LED displays on your mixer are in the green,
turn down the Gain Line In knob on D.A.R.T.
• Observe the Limiter 1" and Limiter 12" LEDs on
D.A.R.T’s control panel. These should light up red
for no more than a brief moment.
Under no circumstances may the red LEDs
illuminate continuously. If this is the case, turn
down the corresponding GAIN knob.
Annoying hum
• Check the cables that you are using to connect
the signal source to D.A.R.T If any are damaged,
replace them immediately.
• If you cannot pinpoint the cause of the hum, press
the Ground Lift switch. This should in most cases
fix the problem.
8 Technical Specifications
Frequency response +/- 3dB: 80 Hz – 19 kHz
Frequency response –10 dB: 60 Hz – 22 kHz
Axial sensitivity @1W/1m (half space): 105 dB
Maximum SPL @ 1m (half space, 10% THD): 123 dB
Loudspeakers:
Bass/mid woofer: 1x 12"
HF driver: 1" B&C
HF protection (passive): Dynamic protection circuit
Horn characteristics: 60° x 40° CD horn
Power amps:
1x 250 W Class D for bass/mid, 1x 60 W for HF
Active limiters: HK AUDIO®MultiBand Limiter,
Subsonic filter
Crossover frequency: 2 kHz, 24 dB/octave active
crossover
Voicing section: 2-Band EQ
Connectors:
1 XLR Line In balanced
1 XLR Through balanced
1 XLR Mic In balanced
1 RCA phono stereo In
Speaker stand mounting collar: HK AUDIO®DuoTilt™
Weight: 21 kg/ 46.2 lbs.
Dimensions (WxHxD): 56 cm x 40.5 cm x 35.5 cm /
22" x 16" x 14"
This is to certify that
HK AUDIO®D.A.R.T
complies with the provisions of the Directive of
the Council of the European Communities on the
approximation of the laws of the Member States
relating to electromagnetic compatibility
(EMC Directive 89/336/EEC) and the low voltage
Directive (73/23/EEC).
This declaration of conformity of the European
Communities is the result of an examination
carried out by the Quality Assurance Department
of STAMER GmbH in accordance with European
Standards EN 50081-1, EN 50082-1and EN
60065 for low voltage, as laid down in Article 10
of the EMC Directive.
Stamer Musikanlagen
GmbH*
Magdeburger Str. 8
66606 St.Wendel
Lothar Stamer Dipl.Ing.
Managing Director
St.Wendel, 04/02/02
* Stamer Musikanlagen manufactures exclusively
for HK AUDIO®.
HK Audio®• Postfach 1509 • 66595 St. Wendel
Germany • info@hkaudio.com • www.hkaudio.com
International Inquiries: fax +49-68 51-905 215
international@hkaudio.com
Technische Änderungen vorbehalten
Copyright 2004 Music & Sales GmbH • 09/2004
MS D-1147 09/04
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