the t amp TA1050 Power Amplifier User Manual
- June 2, 2024
- the t amp
Table of Contents
the t amp TA1050 Power Amplifier
General Information
This document contains important instructions for the safe operation of the
product. Read and follow the safety instructions and all other instructions.
Keep the document for future refer‐ ence. Make sure that it is available to
all those using the product. If you sell the product to another user, be sure
that they also receive this document.
Our products and documentation are subject to a process of continuous
development. They are therefore subject to change. Please refer to the latest
version of the documentation, which is ready for download under
www.thomann.de.
Symbols and signal words
In this section you will find an overview of the meaning of symbols and signal words that are used in this document.
| 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.
WARNING!| This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in death or serious injury if it is
not avoided.
CAUTION!| This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in minor injury if it is not
avoided.
NOTICE!| This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can result in material and environmental damage
if it is not avoided.
Warning signs| Type of danger
| Warning – high-voltage.
| Warning – danger zone.
Safety instructions
Intended use
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.
Safety
DANGER!
Risk of injury and choking hazard for children!
Children can suffocate on packaging material and small parts. Children can
injure themselves when handling the device. Never allow children to play with
the packaging material and the device. Always store packaging material out of
the reach of babies and small children. Always dispose of packaging material
properly when it is not in use. Never allow children to use the device without
supervision. Keep small parts away from children and make sure that the device
does not shed any small parts (such knobs) that children could play with.
DANGER!
Danger to life due to electric current!
Within the device there are areas where high voltages may be present. Never
remove any covers. There are no user-serviceable parts inside. Do not use the
device when covers, safety equipment or optical components are missing or
damaged.
DANGER!
Danger to life due to electric current!
A short circuit could lead to a fire hazard and risk of death. Always use
proper ready-made insulated triple-core mains cable with a safety plug. Do not
modify the mains cable or the plug. In case of isolation damage, disconnect
immediately the power supply and arrange repair. If in doubt, seek advice from
a qualified electrician.
WARNING!
Possible hearing damage due to operating the device at a high volume!
The device can produce volume levels that, when operated at a high volume, may
cause temporary or permanent hearing impairment. Over an extended period of
time, even levels that seem to be uncritical can cause hearing damage. Avoid
operating the device at excessively high volumes over an extended period of
time. 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 adequate ear-muffs.
CAUTION!
Risk of injury due to heavy weight!
The device is heavy. Lifting and dropping it during transport and installation
can cause injuries. Make sure at least two people work together when
transporting and installing the device.
NOTICE!
Risk of fire due to covered vents and neighbouring heat sources!
If the vents of the device are covered or the device is operated in the
immediate vicinity of other heat sources, the device can overheat and burst
into flames. Never cover the device or the vents. Do not install the device in
the immediate vicinity of other heat sources. Never operate the device in the
immediate vicinity of naked flames.
NOTICE!
Damage to the device if operated in unsuitable ambient conditions!
The device can be damaged if it is operated in unsuitable ambient conditions.
Only operate the device indoors within the ambient conditions specified in the
“Technical specifications” chapter of this user manual. Avoid operating it in
environments with direct sun light, heavy dirt and strong vibrations. Avoid
operating it in environments with strong temperature fluctuations. If
temperature fluctuations cannot be avoided (for example after transport in low
outside temperatures), do not switch on the device immediately. Never subject
the device to liquids or moisture. Never move the device to another location
while it is in operation. In environments with increased dirt levels (for
example due to dust, smoke, nicotine or mist): Have the device cleaned by
qualified specialists at regular intervals to prevent damage due to
overheating and other malfunctions.
NOTICE!
Damage to the device due to high voltages!
The device can be damaged if it is operated with the incorrect voltage or if
high voltage peaks occur. In the worst case, excess vol‐ tages can also cause
a risk of injury and fires. Make sure that the voltage specification on the
device matches the local power grid before plugging in the device. Only
operate the device from professionally installed mains sockets that are
protected by a residual current circuit breaker (FI). As a precaution,
disconnect the device from the power grid when storms are approaching or it
the device will not be used for a longer period.
NOTICE!
Interference with nearby electrical devices due to magnetic fields!
The device generates strong magnetic fields that can interfere with the
function of poorly shielded devices. The magnetic fields are strongest
directly above and below the Power Amplifier. You should therefore never place
sensitive devices such as pre-amplifiers, radio transmission systems, or tape
decks directly above or below the Power Amplifier. When placing the Power
Amplifier in a rack, you should place it at the bottom thereof, and place any
other equipment at the top of the rack.
NOTICE!
Risk of fire due to installation of a wrong fuse!
Using fuses of a different type than compatible with the device may cause a
fire and seriously damage the device. Only use fuses of the same type. Observe
the labelling on the device casing and the information in the “Technical data”
chapter.
Features
- Inputs
- 2 × XLR
- 2 × 6.35-mm jack
- Outputs
- 2 × Speaker Twist (lockable)
- 2 × screw terminal
- Protective circuits
- Audio limiter
- Thermal protection
- Short circuit protection
- DC voltage protection
- Overcurrent protection
- Infrasound protection
- Cooling via integrated two-stage fans
- Suitable for 19-inch racks (2 RU, installation depth 44 cm)
For device-specific features see Ä Chapter 6 ‘Technical specifications’ on page 15.
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 product against
vibration, dust and moisture during transportation or storage use the original
packaging or your own packaging material suitable for transport or storage,
respectively.
Create all connections while the device is off. Use the shortest possible
high-quality cables for all connections. Take care when running the cables to
prevent tripping hazards.
Connections and controls
Front panel
1| [CH-A] / [CH-B] | Input gain controls for channels A and B
---|---
2| LED indicators [CH-A] / [CH-B] | These LEDs indicate the ready status
of the device ( [Power] ), the input signal level ( [Signal] ), channel
overdrive ( [Clip] ) and a fault condition ( [Fault] ).
3| [POWER] | Main switch for turning the device on and off
The [Power] LED is permanently lit during operation. The [Signal] LEDs respond to the input signal. If any of these LEDs light up without an input signal present, disconnect the speakers from the power amplifier and turn the input gain controls of channels A and B down to minimum. If the LEDs will still light, the device must be checked by an authorized service workshop.
Rear panel
| 1 | Fuse holder |
|---|---|
| 2 | [OUT A] / [OUT B] |
sockets for connecting speakers
3| [OUT A] / [OUT B] | Signal outputs, designed as screw terminals (+/)
for connecting speakers
4| [IN A] / [IN B] | Signal inputs, designed as XLR panel sockets
5| [IN A] / [IN B] | Signal inputs, designed as 6.35-mm jack sockets
6| [STEREO/PARALLEL/BRIDGED] | Switch for operating modes “STEREO”
(channels operate independently of each other), “PARALLEL” (inputs of the
channels are combined. Input A is output on output A and output B.) and
“BRIDGED” (channels are interconnected to form one channel with double
output).
7| [Lift/Ground] switch | Use the ground/lift switch to separate the
connection between the earth pin of the device and the unit’s signal ground to
prevent ground loops:
- “Lift” position (not pressed): no connection
- “Ground” position (pressed): earth pin and signal ground are electrically connected
8| Rubber panel plug for the power supply
Technical Specifications
TA 1050 MK-X
| Amplifier class | H |
|---|---|
| Input impedance | 20 kΩ (balanced) |
10 kΩ (unbalanced)
Output power| RMS 8 Ω, stereo| 2 × 380 W
RMS 4 Ω, stereo| 2 × 520 W
RMS 8 Ω, mono “bridged”| 1050 W
Slew rate| 40 V/ms
Common mode rejection| > 60 dB (1 kHz)
IMD-SMPTE (60 Hz, 7 kHz)| <0.01% / 400 W
Crosstalk| < 60 dB
Frequency response| 20 Hz … 20 kHz (+ 0.1 …–3 dB, 1 W, 8 Ω)
Signal-to-noise ratio| 103 dB
Total harmonic distortion (THD) 4 Ω at 1 kHz| <0.05% / 620 W
Damping factor (8 Ω, 1 kHz)| 300:1
Sensitivity| 0.775 V at rated power (8 Ω)
Gain| 34 dB
Cooling| 2 × 2-speed DC fans
Power consumption| Load| 1/8 nominal power| 1/3 nominal power| 1/1 nominal
power
(2 ×) 8 Ω| 450 W / 2.9 A| 690 W / 4.2 A| 1190 W / 6.8 A
(2 ×) 4 Ω| 735 W / 4.4 A| 1150 W / 6.6 A| 1980 W / 10.6 A
Supply voltage| 230 V 50 Hz
Fuse| 5 mm × 20 mm, 15 A, 250 V, fast blow
Dimensions (W × H × D)| 483 mm × 103 mm × 475 mm
Weight| 16.4 kg
Ambient conditions| Temperature range| 0 °C…40 °C
Relative humidity| 50%, non-condensing
TA 1400 MK-X
| Amplifier class | H |
|---|---|
| Input impedance | 20 kΩ (balanced) |
10 kΩ (unbalanced)
Output power| RMS 8 Ω, stereo| 2 × 570 W
RMS 4 Ω, stereo| 2 × 850 W
RMS 8 Ω, mono “bridged”| 1600 W
Slew rate| 40 V/ms
Common mode rejection| > 60 dB (1 kHz)
IMD-SMPTE (60 Hz, 7 kHz)| <0.01% / 570 W
Crosstalk| < 60 dB
Frequency response| 20 Hz … 20 kHz (+ 0.1 …–3 dB, 1 W, 8 Ω)
Signal-to-noise ratio| 103 dB
Total harmonic distortion (THD) 4 Ω at 1 kHz| <0.05% / 850 W
Damping factor (8 Ω, 1 kHz)| 350:1
Sensitivity| 0.775 V at rated power (8 Ω)
Gain| 36.9 dB
Cooling| 2 × 2-speed DC fans
Power consumption| Load| 1/8 nominal power| 1/3 nominal power| 1/1 nominal
power
(2 ×) 8 Ω| 380 W / 2.4 A| 985 W / 5.8 A| 1650 W / 9.3 A
(2 ×) 4 Ω| 665 W / 3.9 A| 1730 W / 9.9 A| 2650 W / 14.0 A
Supply voltage| 230 V 50 Hz
Fuse| 5 mm × 20 mm, 15 A, 250 V, fast blow
Dimensions (W × H × D)| 483 mm × 103 mm × 475 mm
Weight| 17.5 kg
Ambient conditions| Temperature range| 0 °C…40 °C
Relative humidity| 50%, non-condensing
TA 2400 MK-X
| Amplifier class | H |
|---|---|
| Input impedance | 20 kΩ (balanced) |
10 kΩ (unbalanced)
Output power| RMS 8 Ω, stereo| 2 × 760 W
RMS 4 Ω, stereo| 2 × 1200 W
RMS 8 Ω, mono “bridged”| 2300 W
Slew rate| 60 V/ms
Common mode rejection| > 60 dB (1 kHz)
IMD-SMPTE (60 Hz, 7 kHz)| <0.01% / 760 W
Crosstalk| < 60 dB
Frequency response| 20 Hz … 20 kHz (+ 0.1 …–3 dB, 1 W, 8 Ω)
Signal-to-noise ratio| 103 dB
Total harmonic distortion (THD) 4 Ω at 1 kHz| <0.05% / 1200 W
Damping factor (8 Ω, 1 kHz)| 500:1
Sensitivity| 0.775 V at rated power (8 Ω)
Gain| 39.2 dB
Cooling| 2 × 2-speed DC fans
Power consumption| Load| 1/8 nominal power| 1/3 nominal power| 1/1 nominal
power
(2 ×) 8 Ω| 443 W / 2.8 A| 1080 W / 6.6 A| 2180 W / 12.2 A
(2 ×) 4 Ω| 790 W / 4.8 A| 2004 W / 10.3 A| 3600 W / 18.9 A
Supply voltage| 230 V 50 Hz
Fuse| 5 mm × 20 mm, 20 A, 250 V, fast blow
Dimensions (W × H × D)| 483 mm × 103 mm × 475 mm
Weight| 19.7 kg
Ambient conditions| Temperature range| 0 °C…40 °C
Relative humidity| 50%, non-condensing
Further information
| Channels | 2 |
|---|---|
| 19-inch rack installation height | 2 RU |
| 2 Ω stable | No |
| DSP / frequency | No |
| Convection cooling | No |
Protection circuits (DC voltage protection, over temperature protection, short-circuit protection, infrasound protection, overcurrent protection)| Yes
Block diagram
Plug and connection assignment
Introduction
This chapter will help you select the right cables and plugs to connect your
valuable equipment in such a way that a perfect sound experience is ensured.
Please note these advices, because especially in ‘Sound & Light’ caution is
indicated: Even if a plug fits into the socket, an incorrect connection may
result in a destroyed power amp, a short circuit or ‘just’ in poor
transmission quality!
Balanced and unbalanced transmission
Unbalanced transmission is mainly used in semi-professional environment and in
hifi use. Instrument cables with two conductors (one core plus shielding) are
typical representatives of the unbalanced transmission. One conductor is
ground and shielding while the signal is transmitted through the core.
Unbalanced transmission is susceptible to electromagnetic interference,
especially at low levels, such as microphone signals and when using long
cables.
In a professional environment, therefore, the balanced transmission is
preferred, because this enables an undisturbed transmission of signals over
long distances. In addition to the conductors ‘Ground’ and ‘Signal’, in a
balanced transmission a second core is added. This also transfers the signal,
but phase-shifted by 180°.
Since the interference affects both cores equally, by subtracting the phase-
shifted signals, the interfering signal is completely neutralized. The result
is a pure signal without any noise interference.
XLR plug (balanced)
| 1 | Ground, shielding |
|---|---|
| 2 | Signal (in phase, +) |
| 3 | Signal (out of phase, –) |
| 4 | Shielding on plug housing (option) |
XLR plug (unbalanced)
| 1 | Ground, shielding |
|---|---|
| 2 | Signal |
| 3 | Bridged to pin 1 |
Speaker Twist chassis connector
| 1, + | Signal 1 (in phase) |
|---|---|
| 1, – | Signal 1 (out of phase) |
| 2, + | Signal 2 (in phase) |
| 2, – | Signal 2 (out of phase) |
1/4″ TS phone plug (mono, unbalanced)
| 1 | Signal |
|---|---|
| 2 | Ground, shielding |
1/4″ TRS phone plug (mono, balanced)
| 1 | Signal (in phase, +) |
|---|---|
| 2 | Signal (out of phase, –) |
| 3 | Ground |
1/4″ TRS phone plug (stereo, unbalanced)
| 1 | Signal (left) |
|---|---|
| 2 | Signal (right) |
| 3 | Ground |
Cleaning
Fan grids
The fan grids of the device must be cleaned of any contamination, such as dust, etc. on a regular basis. Before cleaning, switch off the device and disconnect mains-operated devices from the mains. Only use pH-neutral, solvent-free and non-abrasive cleaning agents. Clean the unit with a slightly damp lint-free cloth.
Protecting the environment
Disposal of the packing material
Environmentally friendly materials have
been chosen for the packaging. These materials can be sent for normal
recycling. Ensure that plastic bags, packaging, etc. are disposed of in the
proper manner.
Do not dispose of these materials with your normal household waste, but make
sure that they are collected for recycling. Please follow the instructions and
markings on the packaging.
Observe the disposal note regarding
documentation in France.
Disposal of your old device
This product is subject to the European
Waste Electrical and Electronic Equipment Directive (WEEE) as amended.
Do not dispose of your old device with your normal household waste; instead,
deliver it for controlled disposal by an approved waste disposal firm or
through your local waste facility. When disposing of the device, comply with
the rules and regulations that apply in your country. If in doubt, consult
your local waste management facility. Proper disposal protects the environment
as well as the health of your fellow human beings.
Also note that waste avoidance is a valuable contribution to environmental
protection. Repairing a device or passing it on to another user is an
ecologically valuable alternative to disposal.
You can return your old device to Thomann GmbH at no charge. Check the current
conditions on www.thomann.de.
If your old device contains personal data, delete those data before disposing
of it.
CUSTOMER SUPPORT
Thomann GmbH Hans-Thomann-Straße 1 96138 Burgebrach Germany
Telephone: +49 (0) 9546 9223-0
Internet: www.thomann.de
References
Read User Manual Online (PDF format)
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