Klein O 200 User manual

Active
Monitor Loudspeaker
Installation
and Operation
O 200
KLEIN +HUMMEL GmbH
Zeppelinstrasse12 • 73760 Ostfildern/Germany
Tel.: + 49/(0)711/45893 - 0
Fax: + 49 (0)71145893 - 35
e-Mail: [email protected]
Internet: www.klein-hummel.de
Version 05/00
058-E0011

Safety Instructions
It is absolutely essential that you read these safety instructions carefully before connecting and using this K+H
product. Your safety depends on it. Furthermore, failure to follow these instructions voids the warranty. To ensure
safe operation for years to come, keep these instructions in a safe place for future reference. K+H has manufactured
this product in accordance with IEC 1992 (SEC) 39 standards, then tested and delivered it in safe operating condition.
To maintain it in this condition, you must:
•observe all safety instructions,
•use the product only as described herein,
•have any maintenance, repairs, or modifications performed only by K+H or other authorized personnel, and
•ensure that the room in which you use this product is wired in accordance with the local electrical code.
Warning!
•When the interior of the cabinet is exposed, touching some parts can lead to an electric shock.
•If you need to gain access to the interior electronics of the unit, always disconnect the unit from any and all power
sources first.
•Any repairs, maintenance, or other service of the unit when its interior compartment is exposed may only be
performed safely (in accordance with VBG 4) by authorized technicians familiar with all the risks
involved. Even in an unplugged state, a fully charged capacitor in the unit can zap the unsuspecting.
•Loudspeaker output jacks labeled with the IEC 417/5036 emblem (Fig. 10, right) may be carrying
dangerously high voltages. If your unit has this emblem, ensure that any connections to be
made between these jacks and the speakers themselves are made before powering up the
unit, and are done so only with manufacturer-approved interconnecting cables.
•If you need to replace any fuses, ensure that the replacements are of exactly the same type,
value and voltage as the originals, as spelled out in the technical specifications at the rear of
this manual.
•Do not use "repaired" fuses.
•If you do not have any fuses on hand of the specified size, type, and value, do not hot-wire the
contacts in the holder by short-circuiting them.
•Certain areas of the cabinet, cover, and rear panel can achieve extreme temperatures and are
therefore marked with a "HOT" label (Fig. 11). Refrain from touching any heat sink or ventilation
grille.
•High volume levels are known to cause permanent - i.e. irreversible - hearing damage, especially
when listened to without sufficient breaks. The higher the levels, the more frequent and exten-
ded must be the breaks. Avoid standing too close to loudspeakers that are being driven at high
levels. If you must be exposed to high sound pressure levels over an extended period of time,
use hearing protection.
Mains Connection:
•This unit is designed for continuous operation.
•Ensure that the operating voltage of the unit matches that of the local mains current (AC line voltage).
•Always check before connecting the power cable to the mains socket that the power switch on the unit itself is set
to off ("O").
•Use the power cable or power supply that came with the unit to connect to the mains socket (wall outlet).
•Power supply: a damaged power cable may not be repaired. Use a new cable.
•Avoid plugging the mains cable into a power strip that already has several other power-consuming devices
connected to it.
•Avoid using extension cables. The unit must be connected to a mains socket close to it, and that socket should
be freely accessible.
Installation:
•This product may only be placed on a stable, clean, horizontal surface.
•Do not expose this product to vibration.
•Do not operate this product anywhere near water or other liquids. Do not use it near a sink, swimming pool,
bathtub, or in any damp room or area. Electrical shocks carried through water can kill. Do not place any beverages
whatsoever on or near this product, as liquids can kill electronic components.
•Ensure sufficient ventilation around the product to allow for adequate heat dissipation, especially near the rear
panel and the sides of the cabinet (minimum of 8 inches from the nearest wall). The unit may only be installed in
a rack if measures are taken to ensure sufficient ventilation and if the mounting instructions of the manufacturer
are followed. Do not block or cover any heat sink, fan, or vent.
•Do not place the product where it will be in the path of direct sunlight, and keep it a safe distance away from
radiators and other heaters of any kind.
•If you bring this product from a cold environment into a warm one (such as from a vehicle into a studio), it is quite
possible that condensation will form inside the cabinet. Please allow the unit sufficient time for acclimatisation
to room temperature (minimum thirty minutes) before connecting and powering up.
•To avoid accidents, do not use any accessory equipment with this product which is not approved by the manufacturer,
particularly mounting accessories. Do not place this unit on any unstable platform, cart, stand or table. Should the
unit fall, it can cause bodily injury to persons, or can be damaged itself.
•To protect this product from lightning damage during a thunderstorm or from power surges during an extended
absence, disconnect the power cable from the wall outlet.
Fig. 10
Fig. 11

Active Studio-Monitor-Loudspeaker
KLEIN+HUMMEL TYPE O 200
Installation - Operation
Operating conditions
The active studio-monitor-speaker O 200 is determined for operation in rooms within a
temperaturerangeof +10to +40 degrees(centigrade).The storingand transportingrange
is -25° to +70° centigrade.
Positioning
The speakers of the O 200 are magnetically shielded, so even a position close to a TV-
monitor is possible without any influence to the picture.The sophisticated O 200 design
gained in an unified and neutral sound with a broad listening area even outside the sym-
metry axis. Be sure, positioning the high frequency speakers in ears height. Not only in
order to get best performance, but also to get best cooling of the heat sink, the preferred
position of the speaker is vertical.Threads on both sides give the possibility of mounting
the speaker on a forked stand.Those stands are delivered e.g.by
Högel-Studiotechnik GmbH
Siemensstrasse 2
D-85716 Unterschleissheim (Germany)
Phone: +89 / 310 11 88
Fax: +89 / 317 49 12
Please be sure, that the threads are closed every times, either by the plastic plugs on
delivery, orthe fixingscrews.Otherwisetheperformance ofthespeaker atlow frequencies
willbe influenced.The samehappensif theplasticplugs ontherear side,coveringopenings
forservice, areremoved.
Mains operation
Theinternal amplifiersare suppliedby230V/ 50- 60Hz mainsvoltage.Onrequest special
versions with other voltages are available. If the power plug has to be removed the protec-
tion earth must be connected or an additional ground wire with at least 1.5 mm² has to be
connected with the case.
Mains switch
After switching on, the signal will be connected to the speakers after a delay of approxi-
mately3 seconds,preventing switchingpulses tobeheard fromown andexternal sources.
Switching off disconnects the speakers immediately.
Input Level / Location Equalization / Ground-Lift
Next to the input connectors are the level controls, the location equalizer switch and the
ground-lift switch. For avoiding unwanted setting, a cover has to be removed at first.
Input
By the switch INPUT the input sensitivity of the default + 6 dBm (1,55 V) can be
increased to 0 dBm (0,775V).

Level
The rotary control LEVEL allows the attenuation of the input signal from 0 to -24 dB
Location Equalization
By the four step rotary switchEQUALIZATION the influence of the speaker position
to walls on the low frequency response can be corrected.
Position 1 = speaker free
Position 2 = speaker in front of a wall
Position 3 = speaker in a room corner
Position 4 = speaker in a room edge
Ground Lift
The switch GROUND-LIFT opens the connection between signal ground and
case for preventing hum, caused by ground loops.The default upper position
closes the connection, in the down position the signal ground is separated and
the protection earth is connected to the case only.
Pleasebe sure,that afteradjusting thecontrolsasmentionedbefore, allopenings mustbe
closed by the cover again. Otherwise noise by the streaming air and influence to the bass
response may occur.
Mains Fuse
When removing a blown mains fuse, the value must be
1 A (slow blow) @ 230VAC (5 x 20 mm)
The speaker must be separated from mains before.
Baffle Cover
Thebaffle cover, deliveredwith theO 200,preventsmechanical damagesfrom thespeaker
systems.The acoustical influence of the cover is extremely small an can be detected by
measuring only.The design of the speaker allows the use with or without this cover.
LED Indicators
Two LED’s, integrated in the high frequency speaker, are indicating following states:
Green: normal operation, internal power supply correct
Red: overload protection in function
The red LED indicates the function of the overload protection circuit.This may occur when
cueing tape decks or testing with sine waves. The circuit reduces the output to uncritical
values.
Care for cabinet
The surface of O 200 can be delivered either flocked dark grey or varnished anthracite
metallic. In the first time the flocked version may lose some hairs.This can be avoided by
cleaning the surface with a vacuum cleaner. This cleaning should be repeated in longer
intervals.

Specifications O 200
Sound Pressure Level
short term per pair, @ 0,5m 117 dB
short term per unit 114dB
short term @ 1m 108dB
maximum level @ 0,5 m 109dB
maximum level @ 1 m 103db
Free FieldTransmission Factor
measured with 1/3 octave noise frequencyindependent withmaximum
between 63 Hz and 20 kHz deviation of ± 2 dB
measuredwith sinewave frequency independentwith maximum
between 63 Hz and 20 KHz deviation of ± 2,5 dB
Self Noise Level at 5 cm 26dB(A)
at 1 m neithermeasurable noraudible
Total Harmonic Distortion
(K2 and K3 above 125 Hz) <0,5 % @ 86 dB/SPL / 1m
Amplifier Section
Woofer/midrange-amplifier 50 W @ 8 Ohms (THD < 0,1%)
Tweeteramplifier 50 W @ 8 Ohms (THD < 0,1%)
Electroniccrossover
transitfrequency 2,5 kHz
attenuation(acoustical) 24 dB/octave
subsonic filter 40 Hz, 18 dB/octave
Protection circuit againstoverload ofwoofer/midrange-
andtweeter- speakers
Input
Impedance > 10 kOhms (balanced electronically)
option > 4,7 kOhms (balanced, floating)
sensitivity + 6 dBm (switchable to 0 dBm)
attenuator, stepless 0 ... -24 dB
Commonmode rejektion > 60 dB @ 15 kHz
Location Equalization position0 speaker freefield
position1 speaker in front of a wall
position2 speaker inacorner (2 boundaries)
position3 speaker inan edge(3 boundaries)
SpeakerChassis
woofer/midrangesystem 170 mm Ø, 8 Ohms, type TT 170TV
tweeter system 25 mm Ø, 6 Ohms, type HT 25 TV
Connectors AudioInput Cannon XLR3-31(3-pole,female)
mains Three pole IEC chassis connector,
(moldedcable ondelivery)
Power Consumption idling 15W
fullpower 120W
Cabinet plywood, dark grey flocked finish
Dimensions (WxHxD) 207 x 325 x 250 mm
Volume 17 liters
NetWeight 10 kg
Option (on specialorder) 1.input balanced floating (10 V max.)
2.metallic anthrazitlacquered, ondemand
with additionanal threads for forked stands