Neumann KH 310 L, KH 310 R User manual
KH A S
O M
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Contents
Important safety instructions ...............................................2
The KH 310 studio monitor ..................................................4
Package contents ..........................................................4
Product overview ..........................................................5
Installing and connecting the KH 310.........................................6
Preparing the loudspeakers ............................................6
Preparing the room....................................................7
Positioning the loudspeakers ...........................................7
Connecting the audio cables............................................9
Connecting/disconnecting the KH 310 to/from
the mains power supply...............................................10
Configuring and using the KH 310........................................... 11
Switching the KH 310 on/o ...........................................11
Adjusting the frequency response ......................................11
Adjusting the acoustical level..........................................12
Activating ground lift .................................................13
Adjusting the brightness of the Neumann logo ...........................13
Cleaning and maintaining the KH 310 .......................................14
Troubleshooting ..........................................................14
Specifications ............................................................14
Manufacturer Declarations .................................................17
Appendix
System Block Diagram .................................................I
Pin assignment of the XLR socket........................................I
Acoustical Measurements ..............................................I
Installation angles ...................................................III
EN
KH 310 | 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 it exits 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.
EN
Installation
2 | KH 310
• 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 environ-
ment 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.
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.
X
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 therefore 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 aect 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 fre-
quencies (temporary threshold shift).
Magnetic fields
Hazard warnings
on the rear of
the product
Intended use
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).
X
Always maintain a distance of at least 10 cm (4") between the loudspeaker and the cardiac pacemaker or implanted defibrillator.
The label shown on the right is attached to the rear of
the product.
The symbols on this label have the following meaning:
Presence of uninsulated dangerous voltage within the product’s enclo-
sure that may be of sucient 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 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 opera-
ting manual.
EN
“Improper use” means using the product other than as described in this operating manual, or
under operating conditions which dier from those described herein.
KH 310 | 3
The KH 310 studio monitor
Thank you for purchasing a Neumann studio monitor. The KH 310 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 310 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 three-way loudspeaker systems are designed for use as
near-field monitors, as front loudspeakers in mid-sized multi-channel systems, or as rear
loudspeakers in larger multi-channel systems. They can be used in project, music, broadcast
centers, OB vans, and post production studios for tracking, mixing, and mastering.
Package contents
1 KH 310 A “left” or KH 310 A “right”
3 Mains cables (European, UK and US versions)
4 Self-adhesive feet
1 Operating manual
1 “Getting Started Quickly” supplement
EN
4 | KH 310
Note that imperial dimensions are approximate.
The current operating manual, the supplement “Getting Started Quickly” and further information
can be downloaded from the “Downloads” area on the product page at www.neumann.com.
Product overview
The KH 310 comes in two variants named “left” and “right” (see fi gure). It is also possible to use a “left” in the “right” position, and vice versa. Both variants can also be used
as a center loudspeaker. Information about positioning your KH 310 can be found on
page 7.
1
1 Neumann logo
•lights up white:
loudspeaker is switched on and ready for operation
2
3
4
2 Treble driver
3 Midrange driver
4 Bass driver
•fl ashes red:
loudspeaker’s protection system is active
output level is reduced
•lights up red:
electronic‘s temperature is too high
output level is reduced by 20 dB
You can adjust the brightness of the Neumann logo. For more information, refer to
page13.
B
A
0
9
8
7
6
5
5 ANALOG INPUT socket (XLR)
6 GROUND switch
(Connects/disconnects ground)
7 DISPLAY BRIGHTNESS switch
(Dims the Neumann logo)
8 INPUT GAIN control
9 OUTPUT LEVEL switch
0 ACOUSTICAL CONTROL switches
A Holes for Neumann mounting hardware
B Handles with mounting holes
C Cooling fi ns
D On/o switch I/0
E IEC mains socket
A
B
C
D
E
KH 310 | 5
EN
Installing and connecting the KH 310
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.
X
Always have the product mounted by a qualified specialist according to local, national
and international regulations and standards.
X
Use the mounting systems recommended by Neumann and always provide sucient
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.
X
Never cover the cooling fins.
X
When installing the product into tight spaces such as wall recesses, maintain an air gap
of at least 5 cm (2") around the rear of the product and provide sucient air circulation.
If necessary, use forced-air cooling (e.g. in OB vans).
It is not possible to remove the electronics panel and locate it remotely.
EN
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 suer from stains when they
come into contact with other synthetics. Despite a thorough testing of the synthetics used,
we cannot rule out the possibility of staining.
X
Do not place the KH 310 on delicate surfaces.
CAUTION
Danger of damaging the midrange and bass drivers!
If the KH 310 is placed face down on a soft surface or if the front panel of the KH 310 is
pressed against your body when you carry it, the drivers can be damaged.
X
Never place the KH 310 on a soft surface with the front panel facing downwards.
X
Always carry the KH 310 so that the front panel is facing upwards.
6 | KH 310
You can use the handles B on the rear panel to lift the loudspeaker.
To place the loudspeaker on a flat surface:
X
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.
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