thomann the t.amp S-75 MK II Manual de usuario
S-75 MK II, S-100 MK II, S-150 MK II
Power Amplier
User Manual
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: +49 (0) 9546 9223-0
Internet: www.thomann.de
24.08.2023, ID: 141140, 144356, 141141 (V6)
Table of contents
1 General information................................................................................................................................. 5
1.1 Symbols and signal words............................................................................................................... 5
2 Safety instructions..................................................................................................................................... 7
3 Features....................................................................................................................................................... 10
4 Connections and controls................................................................................................................... 11
5 Installation and starting up................................................................................................................ 17
5.1 Tips on handling speakers............................................................................................................ 19
5.2 Other useful hints............................................................................................................................. 20
6 Technical specications....................................................................................................................... 22
7 Plug and connection assignment.................................................................................................... 25
8 Cleaning....................................................................................................................................................... 30
9 Protecting the environment.............................................................................................................. 31
Table of contents
S-75 MK II, S-100 MK II, S-150 MK II 3
Power Amplier
4S-75 MK II, S-100 MK II, S-150 MK II
Power Amplier
1 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.
1.1 Symbols and signal words
In this section you will nd an overview of the meaning of symbols and signal words that are
used in this document.
General information
S-75 MK II, S-100 MK II, S-150 MK II 5
Power Amplier
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.
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.
General information
6S-75 MK II, S-100 MK II, S-150 MK II
Power Amplier
2 Safety instructions
This device amplies 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 sucient 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 suocate 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 supervi‐
sion. 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.
Intended use
Safety instructions
S-75 MK II, S-100 MK II, S-150 MK II 7
Power Amplier
DANGER!
Danger to life due to electric current!
A short circuit could lead to a re 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 qualied electrician.
WARNING!
Possible hearing damage due to high volumes on speakers or headphones!
With speakers or headphones connected, 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. Do not operate the
device permanently at a high volume level. Decrease the volume level immediately if you experience ringing in your ears or hearing
impairment.
NOTICE!
Risk of re 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 over‐
heat and burst into ames. 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 ames.
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 specied in the “Technical specications” 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 uctuations. If temperature uc‐
tuations 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 qualied specialists at reg‐
ular intervals to prevent damage due to overheating and other malfunctions.
Safety instructions
8S-75 MK II, S-100 MK II, S-150 MK II
Power Amplier
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 res. Make sure that the voltage specication 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!
Risk of re due to installation of a wrong fuse!
Using fuses of a dierent type than compatible with the device may cause a re 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.
NOTICE!
Interference with nearby electrical devices due to magnetic elds!
The device generates strong magnetic elds that can interfere with the function of poorly shielded devices. The magnetic elds are
strongest directly above and below the Power Amplier. You should therefore never place sensitive devices such as pre-ampliers,
radio transmission systems, or tape decks directly above or below the Power Amplier. When placing the Power Amplier in a rack,
you should place it at the bottom thereof, and place any other equipment at the top of the rack.
NOTICE!
Possible staining due to plasticiser in rubber feet!
The plasticiser contained in the rubber feet of this product may react with the coating of the oor and cause permanent dark stains
after some time. If necessary, use a suitable mat or felt slide to prevent direct contact between the device’s rubber feet and the oor.
Safety instructions
S-75 MK II, S-100 MK II, S-150 MK II 9
Power Amplier
3 Features
nOutput power 2 × 45 W to 250 W (depending on the model)
nSpeaker Twist and terminal connections for speakers
nAll protection circuits incl. soft start
nInput level switchable from –0 to +4 db
nFanless operation
nStandby function
Features
10 S-75 MK II, S-100 MK II, S-150 MK II
Power Amplier
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