thomann the t.amp S-75 MK II User Manual
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thomann the t.amp S-75 MK II User Manual

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Summary of Contents for thomann the t.amp S-75 MK II

  • Page 1 S-75 MK II, S-100 MK II, S-150 MK II power amplifier user manual...
  • Page 2 Musikhaus Thomann Thomann GmbH Hans-Thomann-Straße 1 96138 Burgebrach Germany Telephone: +49 (0) 9546 9223-0 E-mail: info@thomann.de Internet: www.thomann.de 07.07.2021, ID: 141140, 144356, 141141 (V5)

  • Page 3: Table Of Contents

    Table of contents Table of contents General information..........................4 1.1 Further information........................... 5 1.2 Notational conventions........................6 1.3 Symbols and signal words....................... 6 Safety instructions............................. 9 Features............................... 13 Connections and operating elements................... 14 Installation and starting up........................ 22 5.1 Tips on handling speakers......................25 5.2 Additional useful tips........................

  • Page 4: General Information

    Our products and user manuals are subject to a process of continuous development. We there‐ fore reserve the right to make changes without notice. Please refer to the latest version of the user manual which is ready for download under www.thomann.de. power amplifier...

  • Page 5: Further Information

    General information 1.1 Further information On our website (www.thomann.de) you will find lots of further information and details on the following points: Download This manual is also available as PDF file for you to download. Use the search function in the electronic version to find the topics of Keyword search interest for you quickly.

  • Page 6: Notational Conventions

    General information 1.2 Notational conventions This manual uses the following notational conventions: Letterings The letterings for connectors and controls are marked by square brackets and italics. Examples: [VOLUME] control, [Mono] button. Cross-references References to other locations in this manual are identified by an arrow and the specified page number.
  • Page 7 General information 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 pos‐ sible dangerous situation that can result in minor injury if it is not avoided.
  • Page 8 General information Warning signs Type of danger Warning – danger zone. power amplifier...

  • Page 9: Safety Instructions

    Safety instructions 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.
  • Page 10 Safety instructions 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. Do not use the device if covers, protectors or optical components are missing or damaged. DANGER! Electric shock caused by short-circuit Always use proper ready-made insulated mains cabling (power cord) with a protective contact plug.
  • Page 11 Safety instructions 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. Only operate the device within the ambient conditions specified in the chapter ‘Technical specifications’...
  • Page 12 Safety instructions 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 trans‐ mission systems, or tape decks directly above or below the power amplifier.

  • Page 13: Features

    Features Features Output power 2 × 45 W to 250 W (depending on the model) Speaker Twist and terminal connections for speakers All protection circuits incl. soft start Input level switchable from –0 to +4 db Fanless operation Standby function S-75 MK II, S-100 MK II, S-150 MK II...

  • Page 14: Connections And Operating Elements

    Connections and operating elements Connections and operating elements Front panel power amplifier...
  • Page 15 Connections and operating elements 1 CH-1: Input level controller for channel 1 Use the input level controllers CH-1 and CH-2 (4) on the front panel to control the signal amplification in the respective channel. If possible, turn this control fully to the right stop (= 0 dB attenuation) for optimal headroom.
  • Page 16 Connections and operating elements 5 PRO: Indicator for activated protection circuit This indicator lights up, if one of the following situations arises in one of the chan‐ nels: • 3-5 seconds after switching on, as the speakers are still electrically disconnected from the power amp.
  • Page 17 Connections and operating elements 8 POWER: Power indicator light Lights up green when the device is turned on. In standby mode, the LED lights red. As soon as the unit receives a signal, it switches back to normal mode and the LED will light up green again.
  • Page 18 Connections and operating elements Rear panel OUTPUT INPUT F:T5AL 250V (230V~) F:T10AL 250V (115V~) 115V/230V ~, 50/60Hz CH-2 CH-1 CH-2 CH-1 OUTPUT CH-2 CH-1 VOLTAGE SELECTION S-150 115V~ 230V~ F:T5AL 250V (230V~) INPUT F:T10AL 250V (115V~) CH-2 CH-1 115V/230V ~, 50/60Hz power amplifier...
  • Page 19 Connections and operating elements 10 Mains connector with fuse holder Connect the supplied power cord here and supply the device with mains voltage. 11 ERP ON | OFF On / off switch for standby function. If the standby function is enabled, the device automatically switches to standby mode after 20 minutes without any input signal.
  • Page 20 Connections and operating elements 16 GROUND/LIFT switch In normal operation signal source and power amplifier should share the same ground potential. In some constellations this admittedly leads to ground loops and thus to humming. If this happens vary the toggle switch setting for ground poten‐ tial on the rear panel of the unit.
  • Page 21 Connections and operating elements 20 0.77V | 1.4V | 26dB The input sensitivity at which the amplifier is delivering its full rated power, can be set with this switch between 0.775 V and 1.4 V ). Often multiple amplifiers are used simultaneously.

  • Page 22: Installation And Starting Up

    Installation and starting up 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.
  • Page 23 Installation and starting up DANGER! Electric shock caused by high voltages at the power amplifier output The output voltages of modern high-performance amplifiers may result in death or serious injury. Never touch the bare ends of loudspeaker cables when the amplifier is on. NOTICE! Magnetic fields The device generates strong magnetic fields that can interfere with the function...
  • Page 24 Installation and starting up Rack mounting Model types S-75 and S-100 The unit has been designed for rack mounting in a standard 19" rack; it occupies one rack unit. Model type S-150 The device is designed for mounting in 19" racks, it occupies two rack units (RU). power amplifier...

  • Page 25: Tips On Handling Speakers

    Installation and starting up 5.1 Tips on handling speakers We recommend you to set up the speakers in a way, that the sound signals can reach the audi‐ ence unobstructedly. It will often be helpful to mount the speakers on tripods. Thus, the sound will be evenly spread with maximum range throughout the audience area.

  • Page 26: Additional Useful Tips

    Installation and starting up 5.2 Additional useful tips Possible operation modes Depending on the individual application, the amplifier can be used in different operation modes: Stereo mode The two amplifier channels operate independently of one another, either channel (CH1 and CH2) is amplified and connected to loudspeakers, the volume can be con‐...
  • Page 27 For detailed information related to this topic please refer to our Online Guide "PA Speakers’" (www.thomann.de). S-75 MK II, S-100 MK II, S-150 MK II...

  • Page 28: Technical Specifications

    Technical specifications Technical specifications Model type S-75 S-100 S-150 Amplifier class Input impedance 20 kΩ (active, balanced) Input level 21 dBV / 9 V Output power 8 Ω, stereo 2 × 45 W 2 × 65 W 2 × 85 W 4 Ω, stereo 2 ×...
  • Page 29 Technical specifications Model type S-75 S-100 S-150 Crosstalk @ rated power (1 kHz, 8 Ω) > 70 dB Power consumption 1/2 nominal power Typical current consumption depending on the output power level ). All values based on a 230 V mains voltage and a 1 kHz input 8 Ω...
  • Page 30 Technical specifications Model type S-75 S-100 S-150 Ambient conditions Temperature range 0 °C…40 °C Relative humidity 20 %…80 % (non-con‐ densing) Further information Model type S-75 S-100 S-150 Power 4 Ω / channel 75 W 100 W 150 W Channels 2 Ω...

  • Page 31: Plug And Connection Assignment

    Plug and connection assignment Plug and connection assignment Introduction This chapter will help you select the right cables and plugs to connect your valuable equip‐ ment 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’...
  • Page 32 Plug and connection assignment 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 inter‐ ference. 1/4" TS phone plug (mono, unbalanced) Signal Ground, shielding 1/4"...
  • Page 33 Plug and connection assignment 1/4" TRS phone plug (stereo, unbalanced) Signal (left) Signal (right) Ground 1/4" TS phone plug (mono, unbalanced) Signal Ground S-75 MK II, S-100 MK II, S-150 MK II...
  • Page 34 Plug and connection assignment 3.5 mm TRS phone plug (mono, balanced) Signal (in phase, +) Signal (out of phase, –) Ground Three-pole 1/8" mini phone jack (stereo, unbalanced) Signal (left) Signal (right) Ground, shielding power amplifier...
  • Page 35 Plug and connection assignment XLR plug (balanced) Ground, shielding Signal (in phase, +) Signal (out of phase, –) Shielding on plug housing (option) XLR plug (unbalanced) Ground, shielding Signal Bridged to pin 1 S-75 MK II, S-100 MK II, S-150 MK II...
  • Page 36 Plug and connection assignment 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) ö power amplifier...

  • Page 37: Cleaning

    Cleaning Cleaning Fan grids The fan grids of the device must be cleaned of any contamination, such as dust, etc. on a reg‐ ular 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.

  • Page 38: Protecting The Environment

    Protecting the environment Protecting the environment Disposal of the packaging mate‐ rial For the transport and protective packaging, environmentally friendly materials have been chosen that can be supplied to normal recycling. Ensure that plastic bags, packaging, etc. are properly disposed of. Do not just dispose of these materials with your normal household waste, but make sure that they are collected for recycling.
  • Page 40 Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de...

This manual is also suitable for:

The t.amp s-100 mk iiThe t.amp s-150 mk ii

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