TA-50 mini power amp module user manual
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 02.09.
Table of contents Table of contents 1 General information................................................................................................................................. 1.1 Further information........................................................................................................................... 1.2 Notational conventions.................................................................................................................... 1.3 Symbols and signal words.....
General information 1 General information This manual contains important instructions for the safe operation of the unit. Read and follow the safety instructions and all other instructions. Keep the manual for future reference. Make sure that it is available to all those using the device. If you sell the unit please make sure that the buyer also receives this manual. Our products are subject to a process of continuous development. Thus, they are subject to change.
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. Keyword search Use the search function in the electronic version to find the topics of interest for you quickly. Online guides Our online guides provide detailed information on technical basics and terms.
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. 1.3 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 manual.
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.
Safety instructions 2 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.
Safety instructions 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. NOTICE! Risk of fire Do not cover the device nor any ventilation slots.
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. 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.
Safety instructions NOTICE! External power supply The device is powered by an external power supply. Before connecting the external power supply, ensure that the input voltage (AC outlet) matches the voltage rating of the device and that the AC outlet is protected by a residual cur‐ rent circuit breaker. Failure to do so could result in damage to the device and pos‐ sibly the user.
Features 3 Features n n n n n n Minimal space requirement Ideal for mounting on flat panel displays, in suspended ceilings,… Output power: 2 × 17 W @ 4 Ω (2 × 20 W max.
Installation and starting up 4 Installation and starting up Unpack and carefully check that 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.
Connections and operating elements 5 Connections and operating elements mini power amp module 14
Connections and operating elements 1 [STEREO | BRIDGE] Switch for operating modes ‘STEREO’ (channels operate independently of each other) and ‘BRIDGED’ (channels are interconnected to form one channel with double output). 2 [LIMITER OFF | ON] On / off switch for the integrated limiter. 3 [VOLUME] Volume control. 4 [POWER] Power indicator. The Power indicator is lit green during normal operation and changes to red in standby-mode. 5 [POWER OFF | AUTO | ON] Position OFF: Unit switched off.
Connections and operating elements 6 [DC 24V IN] Phoenix terminals to connect the supplied 24 V power adapter for power supply. 7 [INPUT] Input socket (3.5 mm mini phone jack) for connecting the signal source. 8 [SPEAKER OUTPUT] Phoenix terminals to connect speaker boxes in bridged (one speaker box with 8 Ω) or stereo mode (two speaker boxes with 4 Ω each), see wiring diagram on the unit.
Technical specifications 6 Technical specifications Output power 2 x 20 W @ 4 Ω Frequency range 35 Hz…50 kHz, -3.5 dB Input sensitivity 330 mV (17 W, 4 Ω) Input impedance 10 kΩ Signal-to-noise ratio -95 dB (4 Ω, 1 K) THD 6.5 % Protection circuit Limiter Control indicator Power Power consumption at half output power 40 W Operating supply voltage DC 24 V Dimensions (W × D × H) 145 mm × 95 mm × 45 mm Weight 0.
Plug and connection assignment 7 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.
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) 1 Signal 2 Ground 1 Signal (in phase, +) 2 Signal (out of phase, –) 3 Ground 3.
Plug and connection assignment Three-pole 1/8" mini phone jack (stereo, unbalanced) 1 Signal (left) 2 Signal (right) 3 Ground, shielding mini power amp module 20
Cleaning 8 Cleaning Fan grids The fan grids of the device must be cleaned on a regular basis to remove dust and dirt. Before cleaning, switch off the device and disconnect AC-powered devices from the mains. Use a lintfree damp cloth for cleaning. Never use solvents or alcohol for cleaning.
Protecting the environment 9 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. Please follow the notes and markings on the packaging.
Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.
