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Related Manuals for thomann the box pro A 121 LA
Summary of Contents for thomann the box pro A 121 LA
- Page 1 A 121 LA active subwoofer 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 05.02.2019, ID: 447348 (V2)
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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....................... 7 Safety instructions............................. 9 Features............................... 13 Installation..............................14 Connections and controls........................16 Starting up..............................21 Networking and remote control...................... 24 Technical specifications........................ -
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. active subwoofer... -
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. Instructions The individual steps of an instruction are numbered consecutively. The result of a step is indented and highlighted by an arrow. -
Page 7: Symbols And Signal Words
General information 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. 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. - Page 8 General information Warning signs Type of danger Warning – high-voltage. Warning – danger zone. active subwoofer...
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Page 9: Safety Instructions
Safety instructions Safety instructions Intended use This device is designed for sound reinforcement. Use the device only as described in this user manual. Any other use or use under other operating conditions 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.
- Page 11 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.
- Page 12 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! 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.
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Page 13: Features
Features Features 21" bandpass woofer with 4" voice coil 2000 W class-D amplifier with SMPS Built-in SHARK sound processor (DSP) Connection options: XLR chassis socket for signal input, XLR chassis plug for signal output Lockable in and output socket (Power Twist) for power supply Network port for controlling notebooks / computers using the Pronet software Water-repellent membrane coating Compact 18 mm birch multiplex enclosure... -
Page 14: Installation
Installation Installation 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 15 Installation NOTICE! Possible property damage by magnetic fields Loudspeakers produce a static magnetic field. Therefore, maintain an appropriate distance to devices that can be adversely affected or damaged by an external magnetic field. A 121 LA...
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Page 16: Connections And Controls
Connections and controls Connections and controls active subwoofer... - Page 17 Connections and controls 1 Audio signal input with lockable XLR chassis socket. The socket is electronically perfectly symmetrical wired to ach‐ ieve an optimal signal-to-noise ratio and a sufficient power reserve, including A / D conversion. 2 Pushbutton [GND LIFT] If hum is caused by a ground loop, you can use this switch to disconnect the connection between the earth pin of the device and the signal ground of the device.
- Page 18 Connections and controls 7 Preset button This button has two functions: If kept pressed while turning the device on, the ID assignment is made. The internal digital signal processor (DSP) assigns a new ID to the device for the remote control within the Pronet network. Each element must have a unique ID so that it can be represented in the Pronet network.
- Page 19 Connections and controls This LED lights up when the user setting is loaded. This setting corresponds to the user preset no. 1 of the DSP. In delivered condition, the user setting is identical to the setting [STANDARD]. If you want to change it, you must connect the element to a PC, edit the parameters using the Pronet software, and save the setting to user memory preset no.
- Page 20 Connections and controls 11 [POWER OUT] Lockable output socket (Power Twist) to connect another device to the power supply. To connect another device to the power supply, insert the Power Twist connection cable into this socket and lock the plug by turning it clockwise. Connect the other end of the Power Twist connection cable to the Power Twist input socket of the other device.
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Page 21: Starting Up
Starting up Starting up Switching on After you have made all the required connections, turn on the audio system. It is recommended to provide one switch for turning on the entire audio system and to always leave the Power Twist plugs connected to the sockets of the individual units. With this simple trick you can extend the life of the Power Twist connectors. - Page 22 Starting up 1 Stage 2 Wall or huge obstacle active subwoofer...
- Page 23 Starting up 3 Auditorium 4 Doubled bass 5 Reduced bass Subwoofer stacks must be placed at a minimum distance of 80 cm from walls and fixed obsta‐ cles, so that the sound is not affected by reflections. A 121 LA...
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Page 24: Networking And Remote Control
Networking and remote control Networking and remote control Network capability Using the network ports on the rear panel, the individual devices of the entire audio system can be networked and remote controlled with a notebook / computer using the Pronet soft‐ ware. - Page 25 Networking and remote control 1 Network ports on the rear panel of the first unit. 2 [TERMINATE] pushbutton must not be pressed. The LED above it is off. 3 Network ports on the rear panel of the last unit. 4 [TERMINATE] pushbutton must be pressed. The LED above it is on.
- Page 26 Networking and remote control ID assignment Each device of a Pronet network must have a unique identifier or ID. By default, the USB2CAND converter has the ID 0. Any other device can only have an ID equal or higher than 1. There must be no devices with the same ID on the network.
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Page 27: Technical Specifications
Technical specifications Technical specifications Speaker 1 × 21" bandpass subwoofer (4" voice coil) Input connections Voltage supply Lockable input socket (Power Twist) Data interface RJ45 input for control using Pronet soft‐ ware Signal transmission XLR chassis socket Input impedance 20 kΩ (balanced), 10 kΩ (unbalanced) Input sensitivity +4 dBu / 1,25 V Output connections... - Page 28 Technical specifications Frequency range 34 Hz … 100 Hz (±–3 dB, depending on processor settings) Sound pressure level (SPL), max. 141 dB Power consumption 700 W (nominal) 1700 W (maximum) Operating supply voltage AC 230 V 50 Hz Dimensions (W × H × D) 511 mm ×...
- Page 29 Technical specifications Further information Design Bandpass filter Truss-capable Tripod mounting Casters Woofers 1 × 21" Power rating 2000 W A 121 LA...
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Page 30: 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 31 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. XLR plug (balanced) Ground, shielding Signal (in phase, +) Signal (out of phase, –) Shielding on plug housing (option) A 121 LA...
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Page 32: 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 33 Notes A 121 LA...
- Page 34 Notes active subwoofer...
- Page 36 Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de...