KH 120  Active Near-field Loudspeaker
KH 120 Active Near-field Loudspeaker
Operating Manual
georg neumann gmbh · ollenhauerstr. 98 · 13403 berlin · germany
tel +49 (0)30 / 41 77 24-0 · fax -50 · headoffice@neumann.com · www.neumann.com
Contents
Important safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
The KH 120 studio monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Delivery includes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Product overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing and connecting the KH 120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparing the loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Preparing the room . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Positioning the loudspeakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Connecting the audio cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Connecting/disconnecting the KH 120 to/from
the mains power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Configuring and using the KH 120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Switching the KH 120 on/off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjusting the frequency response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Adjusting the acoustic level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Connecting ground lift . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Adjusting the brightness of the Neumann logo . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Cleaning and maintaining the KH 120 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Manufacturer Declarations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Appendix
System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
Pin assignment of the XLR socket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
Acoustical Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
Installation angles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III
EN
KH 120 | 1
Important safety instructions
1. Read these instructions.
2. Keep these instructions. Always include these instructions when passing the product on
to third parties.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.
6. Only clean the product when it is not connected to the mains power supply. Clean only
with a dry cloth.
7. Always ensure a free air flow around the cooling fins on the rear of the product. Do not
block any 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. Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service 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, when the apparatus has been
exposed to rain or moisture, does not operate normally, or has been dropped.
15. To completely disconnect this apparatus from the AC mains, disconnect the power supply
cord plug from the AC receptacle.
16. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain
or moisture.
17. 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.
18. The mains plug of the power supply cord shall remain readily accessible.
Installation • Ensure that the room in which you use this product is wired in accordance with the local
electrical code and checked by a qualified inspector.
• Only use the product indoors.
• Do not install the product in hot, humid, or excessively dusty locations, in direct sunlight or
in locations where it is exposed to externally generated vibrations.
• Do not place burning objects (e.g. candles) on top of or near the product.
• If condensation has formed on the product, e.g. because it was moved from a cold environment to a warm one, allow the product to acclimatize to room temperature before using it.
• Do not overload wall outlets and extension cables as this may result in fire and electric
shock.
EN
Danger due to high
sound pressure
levels
WARNING
Danger of hearing damage due to sudden high sound pressure levels!
Audio signals that are present at switch-on of the product or that can be present during
operation, can create sudden, very high sound pressure levels which can damage your
hearing.
XX Always lower the output level of the audio source before connecting it to the loudspeaker
or starting it (pressing “play”).
This loudspeaker can be used for commercial purposes. Commercial use is subject to the rules
and regulations of the trade association responsible. Neumann, as the manufacturer, is there-
2 | KH 120
fore obliged to expressly point out possible health risks arising from use. This loudspeaker is
capable of producing sound pressure levels exceeding 85 dB(A) SPL. This is the sound pressure corresponding to the maximum permissible level which is by law (in some countries)
allowed to affect your hearing for the duration of a working day (8 hours). It is used as a basis
according to the specifications of industrial medicine. Higher sound pressure levels and/or
longer durations can damage your hearing. At higher sound pressure levels, the duration must
be shortened in order to prevent hearing damage. The following are signs that you have been
subjected to excessive sound pressure levels for too long a time:
• You can hear ringing or whistling sounds in your ears.
• You have the impression (even for a short time only) that you can no longer hear high frequencies (temporary threshold shift).
Magnetic fields
WARNING
Interference due to magnetic fields!
This product generates a permanent magnetic field (> 1.5 mT) that can interfere with cardiac pacemakers and implanted defibrillators (ICDs).
XX Always
maintain a distance of at least 4" (10 cm) between the loudspeaker and the cardiac pacemaker or implanted defibrillator.
Hazard warnings The label shown on the right is attached to the rear of
on the rear of the product. the product
The symbols on this label have the following meaning:
Presence of uninsulated dangerous voltage within the product’s enclosure that may be of sufficient magnitude to constitute a risk of fire or
electric shock.
Never open the product or remove the grilles fitted to the product as
there is a risk of electric shock. There are no user serviceable parts
inside. Refer servicing to your Neumann service partner.
Read and follow the safety and operating instructions contained in the
operating manual.
Intended use Intended use of the product includes:
• having read this operating manual, especially the chapter “Important safety instructions”,
• using the product within the operating conditions and limitations described in this operating manual.
“Improper use” means using the product other than as described in this operating manual, or
under operating conditions which differ from those described herein.
EN
Note that imperial dimensions are approximate.
The current operating manual as well as the supplement “Getting Started Quickly” can also be
downloaded from the “Downloads” area on the product page at www.neumann.com.
KH 120 | 3
The KH 120 studio monitor
Thank you for purchasing a Neumann studio monitor. The KH 120 features a Mathematically
Modeled Dispersion™ Waveguide (MMD™), flexible acoustical controls, various input options
and an extensive range of mounting hardware. This allows the loudspeaker to be used in
diverse acoustical conditions, with any source equipment and in a wide variety of physical
locations. The KH 120 represents the latest in acoustic and electronic simulation and measurement technologies to ensure the most accurate sound reproduction possible.
Depending on the size, Neumann’s two-way loudspeaker systems are designed for use as near
field monitors or as rear loudspeakers in larger multi-channel systems. They can be used in
project, music, broadcast, and post production studios for tracking, mixing, and mastering.
Delivery includes
1 KH 120 A
2 Mains cables (European and US version) or 1 Mains cable (UK version)
4 Self-adhesive feet
1 Operating manual
1 Supplement “Getting Started Quickly”
EN
4 | KH 120
Product overview
Front panel
1
2
2
1 N
eumann logo
•lights up white:
loudspeaker is switched on and ready
for operation
•flashes red:
loudspeaker’s protection system is
active
2 Bass reflex ports
Bottom
3 On/off switch
5
4 I EC mains socket with protective ground
contact
4
3
6
5 D
IP switches [1]–[4]
[1] Switches the Neumann logo on/off
[2] Dims the Neumann logo
[3] No function
[4] Connects/disconnects ground lift
6 XLR input socket
7
8
9
Back panel
0
A
7 Acoustical controls
8 Output level control
EN
9 Input gain control
0 Cooling fins
A Mounting holes
KH 120 | 5
Installing and connecting the KH 120
CAUTION
Danger of injury and material damage due to tipping/dropping of the product!
If improperly mounted, the product and/or the mounting hardware (e.g. rack) can tip over
or drop down.
XX Always
have the product mounted by a qualified specialist according to local, national
and international regulations and standards.
XX Use
the mounting systems recommended by Neumann and always provide sufficient
additional protection against tipping or dropping!
CAUTION
Damage to the product due to overheating!
If air cannot circulate properly around the cooling fins on the rear of the product, the
amplifier(s) may overheat leading to premature activation of the thermal protection system
which limits the maximum output level of the loudspeaker. In rare cases, damage to the
product may also occur.
XX Never
cover the cooling fins.
XX When
installing the product into tight spaces such as wall recesses, maintain an air gap
of at least 5 cm (2") around the top, rear and side panels of the product and provide sufficient air circulation. If necessary, use forced-air cooling (e.g. in OB vans).
For information on installation, please refer to the supplied “Getting Started Quickly”
supplement. This will help you set up the loudspeakers in a way that will give you the
best acoustic performance from the system.
For further information on setting up loudspeakers, please refer to the “Questions &
Answers” section on the product page at www.neumann.com.
For more information on building systems using Neumann loudspeaker products, please
refer to the Product Selection Guide at www.neumann.com
Preparing the loudspeakers
CAUTION
Risk of staining surfaces!
Some surfaces treated with varnish, polish or synthetics may suffer from stains when they
come into contact with other synthetics. Despite a thorough testing of the synthetics used
by us, we cannot rule out the possibility of staining.
XX Do
not place the loudspeaker on delicate surfaces.
To place the loudspeaker on a flat surface:
XX Attach
the supplied self-adhesive feet to the bottom of the cabinet.
This reduces the risk of scratching the surface and acoustically isolates the loudspeaker
from the surface.
Preparing the room
EN
XX Arrange
all acoustically relevant surfaces and objects symmetrically on either side of the
listening axis of the room (left/right).
XX Minimize
the sound that is reflected back to the listening position by using angled surfaces
and/or acoustical treatment.
This product has been optimized for use in recording studios. In order to not affect the
quality of reproduction, make sure that the product is used in an EMC environment.
6 | KH 120
Positioning the loudspeakers
XX Carry
out the following steps very accurately, since the more accurate the physical arrangement of the loudspeakers in the room, the more accurate the reproduction will be at the
listening position.
Distances
XX Observe
the recommended distances between the loudspeakers and your listening position
(imperial dimensions are approximate):
• Minimum: 0.75 m (2.5')
• Recommended: 1.0–2.0 m (3'–6')
• Maximum: 4.0 m (12')
dwall
Arranging the
loudspeakers
at an angle
XX Avoid
positioning the loudspeaker at a distance “dwall” of 0.8 to 2 m from the wall behind
the loudspeaker. When positioning bass managed loudspeakers, avoid a distance “dwall”
of 0.8 to 1 m from a solid wall behind the loudspeaker. Similarly, avoid these distances
from solid side walls or a solid ceiling. Respecting these positioning limitations reduces
the chances of dips in the low frequency response (comb filtering) caused by strong reflections.
XX Copy
the diagram “Installation angles” that can be found at the end of this operating man-
ual.
XX Place
the diagram at the listening position or center of the listening area.
XX Using
a tape measure, place the loudspeakers at the same distance from the center of the
diagram “Installation angles”. To ensure good imaging, do this at an accuracy of at least
1 cm (1/2").
XX If
the loudspeakers cannot be placed at the same distance from the listening position, compensate for distance differences > 1cm (1/2") by delaying closer loudspeakers by 30 µs/cm
(76 µs/inch).
XX At
the same time, check the location of the loudspeaker cabinet. This depends on the application:
• 2.0 systems (stereo): ±30°, plus optional subwoofer(s)
• 5.1 systems: ITU-R BS.775-1: ANSI/SMPTE 202M: 0°, ±30°, ±110° (±10°), plus optional subwoofer(s)
(center, front left/right, surround left/right)
0°, ±22.5°, arrays to the surround left and to the surround right,
plus optional subwoofer(s)
• 7.1 systems:
0°, ±30°, ±90°, ±150°, plus optional subwoofer(s)
(center, front left/right, side left/right, back left/right)
The acoustical axis of the KH 120 is located at the midpoint of the bass and tweeter drivers.
XX Always point the acoustical axis, in the horizontal and vertical planes, towards the listening
x = 9.1 cm
y = 17.0 cm
position. The acoustical axis is a line perpendicular to the loudspeaker’s front panel along which
the microphone was placed when tuning the loudspeaker’s crossover during design.
Pointing the acoustical axis, in the horizontal and vertical planes, towards the listening
position or center of the monitoring area will give the best measured and perceived
sound quality.
EN
KH 120 | 7
XX Position
the loudspeaker so that there is a direct line of sight from the listening position to
the bass and tweeter drivers.
Connecting the audio cables
Connecting analog cables
Connecting
XLR cables
XX
Connect the left and right output of your audio source to the XLR sockets of the respective
loudspeaker.
XLR
XLR
Right signal
Left signal
Analog Source
XX
Use an XLR adapter (not supplied) to connect unbalanced cables (e.g. RCA cables). XX
Use the following wiring if you want to make your own XLR adapter:
Wiring
Pin
Loudspeaker (XLR-M)
Source (RCA)
Signal
1
Audio ground
2
Signal +
3
Signal -
Connecting/disconnecting the KH 120 to/from
the mains power supply
To connect the KH 120 to the mains power supply:
XX Make
sure that the on/off switch 3 is set to “OFF”.
XX Connect
3
the IEC connector of the supplied mains cable to the mains socket 4.
4
EN
Power Source
XX Connect
the mains plug of the mains cable to a suitable wall socket.
To disconnect the KH 120 from the mains power supply:
XX Set
the on/off switch 3 to “OFF”.
XX Pull
8 | KH 120
the mains plug out of the wall socket.
Configuring and using the KH 120
Switching the KH 120 on/off
XX Set
the on/off switch to:
• “ON” to switch on the loudspeaker. The Neumann logo lights up, provided that is has not
been switched off (see page 11).
• “OFF” to switch off the loudspeaker. The Neumann logo goes off.
There is a five second delay before sound can be heard from the loudspeaker in order
to avoid noises (pops) from preceding equipment switched on at the same time. Conversely, switching off the loudspeaker immediately mutes the audio.
Adjusting the frequency response
When all its acoustical controls are set to 0 dB, the KH 120 loudspeaker is designed to have
a flat frequency response in anechoic conditions. When the loudspeaker is installed in your
monitoring environment, the response changes. The same loudspeaker installed in different
positions in the same room may require different acoustical control settings. In a symmetrical
installation, left/right pairs (front or back) will probably have the same acoustical settings.
XX Before
using your loudspeaker system for the first time, calibrate the frequency response of
the loudspeakers in the room in order to obtain the desired response.
XX Repeat
XX At
the above step if you change the physical conditions in your studio.
your listening position, determine the frequency response of each loudspeaker.
XX Use
the acoustical controls to adjust the frequency response. Recommended frequency responses:
• Studio applications: flat
• Film applications: X-curve shape (see ANSI/SMPTE 202M)
• Home applications: subjective evaluation
Acoustical control
Function
Possible settings
Bass
Compensates for acoustical loading in
the low frequency range due to nearby
large solid boundaries (e.g. walls).
0, -2.5, -5, -7.5 dB
Low-Mid
Compensates for acoustical loading in
the low-mid frequency range due to
nearby large solid objects (e.g. mixing
consoles or desks).
0, -1.5, -3, -4.5 dB
Treble
Compensates for insufficient or
excessive high-frequency damping in
the room.
+1, 0, -1, -2 dB
EN
KH 120 | 9
The following settings can be used as a starting point for further adjustment:
Loudspeaker position
Acoustical controls
Bass
In a corner
Treble
-7.5 dB
-1.5 dB
–
-5 dB
–
–
Next to an acoustically soft wall (e.g. gypsum)
-2.5 dB
–
–
Free standing in an untreated room
-2.5 dB
–
Free standing in a well-treated room
–
–
Next to an acoustically solid wall (e.g. brick, concrete)
*
Low-Mid
-1 dB
–
In a small room with strong side wall reflections
-5 dB
0 dB
–
Near a small desktop or small reflecting surface*
–
-1.5 dB
–
Near a large desktop or large reflecting surface*
–
-3 dB
–
Use these settings in addition to one of the top five settings
Adjusting the acoustic level
XX On
your KH 120 loudspeakers, set the output level control (“OUTPUT LEVEL”) to 94 dB SPL
and the input gain control (“INPUT GAIN”) to -15 dB.
a broadband pink noise test signal that is set to -18 dBFS (Europe) or -20 dBFS (USA)
on the mixing console’s output level meters.
XX Play
XX Measure
the sound pressure level at the listening position using a sound level meter with
the following settings:
• “C”-weighted
• slow integration time
XX Set
the output level and input gain controls of your loudspeakers so that the desired acoustic level is obtained.
Recommended sound pressure levels:
Application
Sound pressure level
Film
85 dB(C)
Broadcast
79 to 83 dB(C)
Music
No defined reference levels
If the Neumann logo flashes red, the loudspeakers’ protection system has been activated. To
avoid this and achieve the desired output level, use larger loudspeakers or add a bass managed subwoofer to the system.
EN
10 | KH 120
Examples of sound pressure levels as a function of the input and output level of the KH 120:
Input signal
dBu
Input gain KH 120
dB
Output level KH 120
dB SPL
Sound pressure level
0
(0.775 V)
0
(0.775 V)
+4
(1.23 V)
-20
(77.5 mV)
0
-15
-4
-15
100
100
94
114
100
85
94
79
dB SPL at 1 m
Connecting ground lift
To avoid unwanted hum or buzz associated with the input signal cables or source equipment,
you can internally disconnect pin 1 of the XLR socket from the loudspeaker electronics’ chassis
ground (see table on page 8):
XX Set
the DIP switch [4] (“ground lift”) to “Lift”.
For safety reasons, the electronics chassis ground is always connected to the mains
power earth pin.
Adjusting the brightness of the Neumann logo
WARNING
Danger of hearing damage due to unexpected high sound pressure levels!
If the Neumann logo is switched off, it is not obvious whether the product is switched on or
off. In this case, unexpected high sound pressure levels can cause hearing damage.
XX Always
set the audio sources connected to the loudspeaker to a low output level before
they deliver an audio signal.
XX If you switch off or dim the Neumann logo, mention this to everyone who works with this
loudspeaker or the connected audio sources.
To dim or switch off the Neumann logo in low light level environments or when the loudspeaker
is placed behind an acoustically transparent screen:
XX Set
the DIP switch [1] to:
• “On” to switch on the Neumann logo.
• “Off” to switch off the Neumann logo.
XX Set
the DIP switch [2] to:
• “Dim” to dim the Neumann logo.
• “Bright” to not dim the Neumann logo.
When the loudspeaker’s protection system is active, the Neumann logo’s color changes
from white to red. The brightness of this red limiter indication can be adjusted by
means of the DIP switch [2] (“Dim” or “Bright”). However, you cannot switch off the
limiter indication, as it appears independent of the position of the DIP switch [1].
KH 120 | 11
EN
Cleaning and maintaining the KH 120
CAUTION
Damage to the product caused by liquids!
Liquids entering the product can cause a short-circuit in the electronics and damage or even destroy the product.
XX Keep
XX Before
XX Use
all liquids away from the product!
cleaning, disconnect the product from the mains power supply.
a soft, dry, and lint-free cloth to clean the product.
Troubleshooting
Problem
Cause
Solution
The Neumann logo is off, no sound
is heard from the KH 120
The KH 120’s main fuse
has blown.
Have the product checked by an
authorized Neumann service partner.
The Neumann logo is off or not
clearly visible, but sound is heard
from the KH 120
The Neumann logo is
switched off or dimmed.
Switch on the Neumann logo
and switch off the dimming (see page 11) .
There is hum or buzz coming from
the KH 120 when the audio cable is
connected.
Bad cabling or ground
loop in the installation.
Check all cabling to eliminate the cause
of the problem, change from unbalanced
to balanced cabling, or use the ground lift
switch (see page 11).
For further information, please refer to the “Questions & Answers” section on the product page at www.neumann.com.
Specifications
Acoustics
EN
-3 dB free field frequency response
52 Hz to 21 kHz, ±3 dB
Pass band free field frequency response
54 Hz to 20 kHz, ±2 dB
Self-generated noise
(with input gain set to 100 dB for 0 dBu)
<20 dB(A) at 10 cm
Total harmonic distortion < 0.5 % at 95 dB SPL at 1 m
>100 Hz
Max. SPL in full space / calc. in half space at 3 % THD
at 1 m, averaged between 100 Hz and 6 kHz
105.1 dB SPL / 111.1 dB SPL
Bass capability:
Max. SPL in half space with 3 % THD at 1 m,
averaged between 50 Hz and 100 Hz
104.8 dB SPL
Max. short term SPL with IEC-weighted noise
(IEC 60268-5) at 1 m, in typical listening conditions
107 dB(C) SPL
Max. short term SPL with music material at 2.3 m,
in typical listening conditions (pair)
97 dB(C) SPL (full range)
104 dB(C) SPL (with subwoofer)
Max. long term SPL with pink noise at 2.3 m,
in typical listening conditions (single/pair)
88/93 dB(C) SPL (full range)
89/94 dB(C) SPL (with subwoofer)
Electronics
Woofer amplifier, continuous (peak) output power
50 W (80 W), THD and noise < 0.1 %
with deactivated limiter
Tweeter amplifier, continuous (peak) output power
50 W (80 W), THD and noise < 0.1 %
with deactivated limiter
Controller design
analog, active
Crossover frequency; crossover slope
2.0 kHz; 24 dB/oct., 4th order
12 | KH 120
Acoustical controls Bass:
0, -2.5, -5, -7.5 dB
Low-mid: 0, -1.5, -3, -4.5 dB
Treble:
+1, 0, -1, -2 dB
Protection circuitry
Limiter: low, high
Infrasonic filter frequency; slope
30 Hz; 6 dB/oct.
Analog input
Input type
XLR, electronically balanced
Impedance
depending on the position of the output level control
(“OUTPUT LEVEL”):
114 dB SPL
20 kW
108 dB SPL
10 kW
100 dB SPL
20 kW
94 dB SPL
10 kW
Input gain control (sensitivity)
0 dB to -15 dB
Output level control
94, 100, 108, 114 dB SPL
CMRR
>56 dB, 20 Hz to 15 kHz
Maximum input level
24 dBu
Product properties
Power consumption (idle)
20 W
Power consumption (full output AC)
200 W
Dimensions (H x W x D)
277 x 182 x 220 mm (107/8" x 71/8" x 85/8")
Internal net volume/external volume
6.5 l/9.7 l
Weight
6.4 kg (14.1 lbs)
Drivers – woofer, tweeter
magnetically shielded – 130 mm (5.25"), 25 mm (1")
Mounting points
2 x M8 on rear panel with depth 15 mm (5/8")
Cabinet surface finish, Color
painted aluminium, Anthracite (RAL 7021)
Operating conditions
Ambient temperature
+10 °C to +40 °C (+50 °F to +104 °F)
Relative humidity
max. 90 % (non-condensing)
Power supply
100 to 240 V~, 50/60 Hz
Transport/storage conditions
Ambient temperature
–25 °C to +70 °C (–13 °F to +158 °F)
Relative humidity
max. 90 %
In compliance with
Europe
EMC EN 55103-1/-2, Electromagnetic Environment: Class E4
Safety EN 60065
USA
47 CFR 15 subpart B
Canada
ICES-003
EN
Acoustical measurements, block diagram and pin assignment
Additional technical data such as acoustical measurements, a block diagram of the KH 120 and the pin assignment
of the XLR socket can be found at the end of this operating manual.
KH 120 | 13
Accessories
Product
Description
BKH 120
Soft carry bag for 1 pair of KH 120
FKH 120
Flight case for 1 pair of KH 120
LH 28
Tripod stand adapter
LH 29
TV spigot (lighting stand adapter)
LH 32
Wall L-bracket
LH 43
Surface mounting plate
LH 45
Wall bracket
LH 46
Adjustable ceiling drop adapter
LH 47
Mounting adapter plate
LH 48
Tripod adapter plate
LH 61
Adjustable L-bracket
LH 64
Omnimount/VESA adapter
LH 65
Table stand
EN
14 | KH 120
Manufacturer Declarations
Guarantee
For the current terms and conditions of the product guarantee, please visit www.neumann.com.
In compliance with the following requirements
• WEEE (2002/96/EC)
Please dispose of the product at the end of its operational lifetime by taking it to your local
collection point or recycling center for such equipment.
CE Declaration of Conformity
• RoHS (2011/65/EU)
• Low Voltage Directive (2006/95/EC)
• EMC Directive (2004/108/EC)
The declarations are available on the product page at www.neumann.com.
Certified by
Audio, Video and Similar Electronic Apparatus - Safety Requirements CAN/CSA-C22.2
No. 60065:03 and UL Std. No. 60065
Trademarks
Neumann® is a registered trademark of Georg Neumann GmbH. The following are trademarks
of Georg Neumann GmbH:
• “Mathematically Modeled Dispersion” and “MMD”
Other company, product, or service names mentioned in this operating manual may be the
trademarks, service marks, or registered trademarks of their respective owners.
FCC
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
This class B digital apparatus complies with the Canadian ICES-003.
Changes or modifications made to this equipment not expressly approved by Neumann may
void the FCC authorization to operate this equipment.
EN
KH 120 | 15
System Block Diagram/System-Blockdiagramm/
Synoptique Système/Diagrama de Bloques del Sistema
Power on
Mute
Display Dimmer On/Off
and Bright/Dim
Production
Trimmers
XLR: Analog
Power
Amps
CrossOver
(24 dB/
oct)
Treble
Limiters
Bass
GND Lift
Fine
Coarse
Gain
0
-2.5
-5.0
-7.5
0
-1.5
-3.0
-4.5
+1
0
-1
-2
Bass
Low Mid
Treble
Pin assignment of the XLR socket/Buchsenbelegung XLR/
Brochage de la prise XLR/Asignación de la hembra XLR
1
Audio ground/Audio-Erdung/Masse audio/Toma de tierra de audio
2
Signal +/Signal +/Signal +/Señal +
3
Signal −/Signal −/Signal −/Señal −
Acoustical Measurements/Akustische Messungen/
Mesures acoustiques/Mediciones Acústicas
EN
Below are acoustical measurements conducted in anechoic conditions at 1 m.
Color versions of these graphs can be found on the appropriate product page of
the web site.
DE
Die folgenden akustischen Messungen wurden unter reflexionsarmen Bedingungen
bei 1 m Abstand durchgeführt. Farbversionen dieser Diagramme finden Sie auf den
entsprechenden Produktseiten der Neumann Website.
FR
Vous trouverez ci après les courbes correspondant aux mesures acoustiques effectuées en chambre sourde, à une distance de 1 mètre du moniteur. Vous retrouverez ces courbes, en couleur, dans la section appropriée de notre site Web.
ES
Las siguientes mediciones acústicas se han realizado bajo condiciones de baja
reflexión a una distancia de 1 m. Encontrará versiones a color de estos diagramas
en las páginas correspondientes de los productos en la página web de Neumann.
Free-Field Response
Freifeld-Frequenzgang
Réponse en champ libre
Respuesta en frecuencia en campo libre
Group Delay
Gruppenlaufzeit
Temps de propagation de groupe
Retardo de grupo
EN
DE
FR
KH 120 | I
ES
Harmonic Distortion at 90 dB SPL
Klirrfaktor bei 90 dB SPL
Distorsion harmonique à 90 dB SPL
Distorsión armónica total a 90 dB SPL
Maximum SPL at 1 m (1% and 3%)
Maximaler SPL bei 1 m (1 % und 3 %)
Niveau SPL maximal, à 1 m (1% et 3%)
SPL máximo a 1 m (1 % y 3 %)
Acoustical Controls
Akustikregler
Effet des correcteurs
de compensation acoustiques
Regulador acústico
Cumulative Spectral Decay
Zerfalls­spektrum
Waterfall (Decay spectral)
Caída espectral acumulada
Frequency (Hz)
Horizontal Directivity Plot
Horizontales Abstrahlverhalten
Directivité horizontale
Directividad horizontal
EN
DE
FR
ES
II | KH 120
Vertical Directivity Plot
Vertikales Abstrahlverhalten
Directivité verticale
Directividad vertical
time (ms)
1 2 0°
1 1 0°
1 00°
90°
30°
1 50°
22.5°
0°
1 80°
22.5°
1 50°
30°
60°
Installation angles/Aufstellwinkel/Angles d�installation/
Ángulos de colocación
1 2 0°
1 1 0°
1 00°
90°
60°
EN
DE
FR
KH 120 | III
ES
FR
03/13 · 540417/A02
Printed in germany
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