thomann the t. amp TA 450 MK-X User manual

TA 450 MK-X
TA 600 MK-X
TA 1050 MK-X
TA 1400 MK-X
TA 2400 MK-X
power amplifier
user manual

Musikhaus Thomann e. K.
Treppendorf 30
96138 Burgebrach
Germany
Telephone: [phone]
E-mail: [email protected]
Internet: www.thomann.de
14.08.2012

Table of contents
1 General notes............................................................................................................................................... 4
2 Safety instructions..................................................................................................................................... 7
3 Features....................................................................................................................................................... 12
4 Installation and starting up................................................................................................................ 13
4.1 Pin assignment.................................................................................................................................. 13
5 Connections and operating elements........................................................................................... 17
6 Technical specifications....................................................................................................................... 22
7 Protecting the environment.............................................................................................................. 25
Table of contents
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1 General notes
This user manual contains important information on safe operation of the device. Read and
follow all safety notes and all instructions. Save this manual for future reference. Make sure
that it is available to all persons using this device. If you sell the device, include the manual for
the next owner.
Our products are subject to a process of continuous development. We therefore reserve the
right to make changes without notice.
This section provides an overview of the symbols and signal words used in this user manual.Symbols and signal words
General notes
power amplifier
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Signal word Meaning
DANGER! This combination of symbol and signal word
indicates an immediate dangerous situation
that will result in death or serious injury if it is
not avoided.
CAUTION! This combination of symbol and signal word
indicates a possible dangerous situation that
can result in minor injury if it is not avoided.
NOTICE! This combination of symbol and signal word
indicates a possible dangerous situation that
can result in material and environmental
damage if it is not avoided.
Warning signs Type of danger
Warning – high-voltage.
General notes
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Warning signs Type of danger
Warning – danger zone.
General notes
power amplifier
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2 Safety instructions
This device amplifies electric audio frequency signals to operate passive speakers. Use the
device only as described in this user manual. Any other use or use under other operating con‐
ditions is considered to be improper and may result in personal injury or property damage. No
liability will be assumed for damages resulting from improper use.
This device may be used only by persons with sufficient physical, sensorial, and intellectual
abilities and having corresponding knowledge and experience. Other persons may use this
device only if they are supervised or instructed by a person who is responsible for their safety.
DANGER!
Danger for children
Ensure that plastic bags, packaging, etc. are disposed of properly and are not
within reach of babies and young children. Choking hazard!
Ensure that children do not detach any small parts (e.g. knobs or the like) from
the unit. They could swallow the pieces and choke!
Never let children unattended use electrical devices.
Intended use
Safety
Safety instructions
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DANGER!
Electric shock caused by high voltages inside
Within the device there are areas where high voltages may be present. Never
remove any covers.
There are no user-serviceable parts inside.
DANGER!
Electric shock caused by short-circuit
Always use proper ready-made insulated mains cabling (power cord) with a pro‐
tective contact plug. Do not modify the mains cable or the plug. Failure to do so
could result in electric shock/death or fire. If in doubt, seek advice from a regis‐
tered electrician.
Safety instructions
power amplifier
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CAUTION!
Possible hearing damage
The device can produce volume levels that may cause temporary or permanent
hearing impairment. Over an extended period of time, even levels that seem to
be uncritical can cause hearing damage.
Decrease the volume level immediately if you experience ringing in your ears or
hearing impairment. If this is not possible, keep a greater distance or use suffi‐
cient ear protectors.
CAUTION!
Risk of injury due to heavy weight
Due to the heavy weight of the device, at least two persons are required for trans‐
port and installation.
Safety instructions
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NOTICE!
Risk of fire
Do not block areas of ventilation. Do not install the device near any direct heat
source. Keep the device away from naked flames.
NOTICE!
Operating conditions
This device has been designed for indoor use only. To prevent damage, never
expose the device to any liquid or moisture. Avoid direct sunlight, heavy dirt, and
strong vibrations.
Safety instructions
power amplifier
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NOTICE!
Power supply
Before connecting the device, ensure that the input voltage (AC outlet) matches
the voltage rating of the device and that the AC outlet is protected by a residual
current circuit breaker. Failure to do so could result in damage to the device and
possibly injure the user.
Unplug the device before electrical storms occur and when it is unused for long
periods of time to reduce the risk of electric shock or fire.
NOTICE!
Magnetic fields
The device generates strong magnetic fields that can interfere with the function
of poorly shielded devices. The strongest magnetic fields are directly above and
below the power amplifier. Therefore, never place sensitive devices such as pre-
amplifiers, radio transmission systems, or tape decks directly above or below the
power amplifier. When installing the power amplifier into a rack, you should place
it in the lowest position, and further equipment such as pre-amplifiers in the
highest position.
Safety instructions
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3 Features
nInputs
– 2 × XLR
– 2 × 1/4" phone sockets
nOutputs
– 2 × NL4 (lockable)
– 2 × screw terminals
nProtection circuits
– Audio limiter
– Thermal protection
– Short circuit protection
– DC protection
– Overcurrent
– Subsonic noise protection
nCooling via integrated two-stage fans
nSuitable for 19" racks (2 RU, installation depth 44 cm)
Features
power amplifier
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4 Installation and starting up
Unpack and check carefully there is no transportation damage before using the unit. Keep the
equipment packaging. To fully protect the device against vibration, dust and moisture during
transportation or storage use the original packaging or your own packaging material suitable
for transport or storage, respectively.
Establish all connections as long as the unit is switched off. Use the shortest possible high-
quality cables for all connections.
4.1 Pin assignment
You can use XLR and 1/4" plugs with balanced or unbalanced wiring. In the following, we will
give you an overview of the various options
Installation and starting up
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Balanced XLR mounting sockets serve as signal inputs. The following drawings and tables indi‐
cate the XLR pin assignment.
Balanced wiring:
1 Ground, shielding
2 Positive signal (+)
3 Negative signal (–)
Unbalanced wiring:
1 Ground, shielding
2 Signal
3 Bridged to pin 1
XLR connections for signal
inputs
Installation and starting up
power amplifier
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The TRS inputs of the amplifier are only suitable for mono operation. The following drawings
and tables indicate the pin assignment of a 1/4" phone plug to be used.
Balanced wiring:
1 (Tip) Positive signal (+)
2 (Ring) Negative signal (–)
3 (Sleeve) Ground, shielding
Unbalanced wiring:
1 Signal
2, 3 Ground, shielding
1/4" phone sockets for signal
inputs
Installation and starting up
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The drawing alongside shows the pin assignment of the lockable NL4 mounting connectors.NL4 mounting connectors
Installation and starting up
power amplifier
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5 Connections and operating elements
Front panel
Connections and operating elements
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1POWER
Main switch to turn the device on or off.
2CH-A/B
Input gain control for the channels CH-A and CH-B.
3 LED indicators for channels CH-A/B
These LEDs indicate operational readiness of the unit (Power), the input signal level (Signal), overloading (Clip) and
fault condition (Fault) an.
During operation, the Power LED lights up constantly. The Signal LEDs respond to
the input signal. If one of these LEDs lights up without an input signal is present, dis‐
connect the speakers from the amp and turn the input gain control of both channels
down to minimum. If the LEDs continue to light up, the device must be inspected by
an authorized service centre.
Connections and operating elements
power amplifier
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Rear panel
Connections and operating elements
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4 Fuse holder.
5OUT A | OUT B
Lockable NL4 mounting connectors for signal outputs to connect speakers.
6OUT A | OUT B
Screw terminals (+/–) for signal outputs to connect speakers.
7IN A | IN B
XLR mounting connectors for signal inputs.
8IN A | IN B
1/4" phone sockets for signal inputs.
9STEREO | PARALLEL | BRIDGED switch
Switch to select the operating modes ‘STEREO’ (both channels operate independently of each other), ‘PARALLEL’ (the
inputs of both channel are interconnected) and ‘BRIDGED’ (both channels are interconnected to form one channel
with double output power).
Connections and operating elements
power amplifier
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