User Manual ASM7 Active Studio Monitor
Thomann GmbH Hans-Thomann-Straße 1 96138 Burgebrach Germany Telephone: +49 (0) 9546 9223-0 Internet: www.thomann.de 27.04.
Table of Contents Table of Contents 1 General information................................................................................................................................. 1.1 Further information........................................................................................................................... 1.2 Notational conventions.................................................................................................................... 1.3 Symbols and signal words.....
ASM7 Active Studio Monitor
General information 1 General information This user manual contains important information on the safe operation of the device. Read and follow all safety notes and all instructions. Save this manual for future reference. Make sure that it is available to all persons using this device. If you sell the device to another user, be sure that they also receive this manual. Our products and user manuals are subject to a process of continuous development.
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.
General information Warning signs Type of danger Warning – danger zone.
Safety instructions 2 Safety instructions Intended use This device is primarily designed for monitoring during audio recording and mixing in the studio. 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 prop‐ erty damage. No liability will be assumed for damages resulting from improper use.
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. Do not modify the mains cable or the plug.
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’ of this user manual.
Safety instructions NOTICE! Possible staining The plasticiser contained in the rubber feet of this product may possibly react with the coating of your surface and after some time cause permanent dark stains. In case of doubt, do not put the rubber feet directly on the surface and use a suitable underlay if neces‐ sary, i.e. felt-pad floor protectors or similar.
Features 3 Features Special features of the device: 2-way system: 6 1/2" bass / mid-range speaker and 1" tweeter XLR, 1/4" and RCA inputs Bi-amping amplifier (class AB) Switch for adapting treble and bass to the room acoustics Switchable low-pass filter with a variable crossover frequency Housing made of vinyl-coated MDF Protection circuits against radio interference, over temperature, on / off switching noise and to limit output current n Standby function n n n n n n n 14 ASM7 Active Studio Monitor
Installation 4 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. Create all connections while the device is off. Use the shortest possible high-quality cables for all connections.
Installation NOTICE! Use of stands When mounting the device onto a stand, ensure that the stand is in a safe and stable position and that the weight of the device does not exceed the maximum permissible load capacity of the stand.
Connections and operating elements 5 Connections and operating elements Control LED on the front panel If the speaker box receives no signal for 10 to 15 minutes, it switches to standby mode. The control LED on the front panel then lights red. As soon as the speaker box receives a signal, it switches back to normal mode and the LED will turn blue.
Connections and operating elements Rear panel & ( ' % $ ) * # ö USE ONLY WITH A 250 V FUSE 18 ASM7 Active Studio Monitor
Connections and operating elements 1 IEC chassis plug with fuse holder 2 [Power] Mains switch. Turns the device on and off.
Connections and operating elements 8 RCA jack to connect line level source devices (unbalanced) 9 1/4" phone socket for balanced input signal 20 ASM7 Active Studio Monitor
Technical specifications 6 Technical specifications Speaker 6 1/2" bass / mid-range speaker and 1" tweeter Input connections 1 × 1/4" jack socket (balanced) 1 × XLR panel socket (balanced) 1 × RCA socket (unbalanced) 1 × IEC chassis plug C14 Input impedance 20 kΩ (balanced), 10 kΩ (unbalanced) Input sensitivity 85 mV pink noise for 102 dB SPL in 1 m distance (volume control @ 100 %) Output power Bass / mid-range amp: 60 W Treble amp: 20 W Frequency range 45 Hz … 20 kHz Crossover frequency 2.
Technical specifications Sound pressure level (SPL), max. 102 dB Power consumption 120 W Supply voltage 230 V Fuse 5 mm × 20 mm, 1 A, 250 V, slow-blow Dimensions (W × H × D) 213 mm × 321 mm × 230 mm Weight 6.
Technical specifications Further information Sales unit 1 pair Analogue input XLR yes Analogue mini jack input no Analogue jack input yes Analogue RCA input yes Digital input no Magnetic shielding no Manual frequency correction yes ASM7 Active Studio Monitor 23
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.
Plug and connection assignment XLR plug (balanced) RCA connection 26 ASM7 Active Studio Monitor 1 Ground, shielding 2 Signal (in phase, +) 3 Signal (out of phase, –) 4 Shielding on plug housing (option) Drawing and table indicate the pin assignment of an RCA plug.
Troubleshooting 8 Troubleshooting In the following we list a few common problems that may occur during operation. We give you some suggestions for easy troubleshooting: Symptom Remedy The unit does not work Check the power supply terminal and the position of the power switch. No sound 1. Check the position of the volume control. 2. Check the correct connection of the signal cables. 3. Check the signal cables and / or the signal source. 4. Try using another signal cable.
Troubleshooting Symptom Remedy Noise and hum occur 1. Make sure that only balanced cables are used. 2. Make sure that all audio devices are connected to the same power circuit and thus share the same ground ref‐ erence. If the procedures recommended above do not succeed, please contact our Service Center. You can find the contact information at www.thomann.de.
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.
Notes 30 ASM7 Active Studio Monitor
Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.
