1.2 Notational conventions........................7 1.3 Symbols and signal words....................... 7 Safety instructions..........................10 Features............................... 14 Installation..............................15 Connections and operating elements................... 17 Technical specifications........................21 Plug and connection assignment....................24 Troubleshooting............................27 Protecting the environment......................29 ASM5 Active Studio Monitor...
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. ASM5 Active Studio Monitor...
Our online guides provide detailed information on technical basics Online guides and terms. Personal consultation For personal consultation please contact our technical hotline. If you have any problems with the device the customer service will Service gladly assist you. ASM5 Active Studio Monitor...
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. ASM5 Active Studio Monitor...
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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. ASM5 Active Studio Monitor...
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General information Warning signs Type of danger Warning – danger zone. ASM5 Active Studio Monitor...
Ensure that plastic bags, packaging, etc. are disposed of properly and are not within reach of babies and young children. Choking hazard! Ensure that children do not detach any small parts (e.g. knobs or the like) from the unit. They could swallow the pieces and choke! Never let children unattended use electrical devices. ASM5 Active Studio Monitor...
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If this is not possible, keep a greater distance or use sufficient ear protectors. NOTICE! Risk of fire Do not block areas of ventilation. Do not install the device near any direct heat source. Keep the device away from naked flames. ASM5 Active Studio Monitor...
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NOTICE! Possible damage due to installation of a wrong fuse The use of different types of fuses can cause serious damage to the unit. Fire hazard! Only fuses of the same type may be used. ASM5 Active Studio Monitor...
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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. ASM5 Active Studio Monitor...
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 Standby function ASM5 Active Studio Monitor...
Take care when running the cables to prevent tripping hazards. 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. ASM5 Active Studio Monitor...
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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. ASM5 Active Studio Monitor...
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. ASM5 Active Studio Monitor...
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Connections and operating elements Rear panel & ö USE ONLY WITH A 250 V FUSE ASM5 Active Studio Monitor...
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Switch to adapt the treble to the room acoustics (–2 dB, 0 dB, +2 dB) 6 [Acoustic Space] Switch to adapt the bass to the room acoustics (0 dB, –2 dB, –4 dB) 7 [LF Cutoff] Switchable low-pass filter with variable crossover frequency (flat, 80 Hz, 100 Hz) ASM5 Active Studio Monitor...
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Connections and operating elements 8 RCA jack to connect line level source devices (unbalanced) 9 1/4" phone socket for balanced input signal ASM5 Active Studio Monitor...
85 mV pink noise for 100 dB SPL in 1 m distance (volume control @ 100 %) Output power Bass / mid-range amp: 40 W Treble amp: 20 W Frequency range 55 Hz … 20 kHz Crossover frequency 2.7 kHz Signal-to-noise ratio > 95 dB (typical, A-weighted) ASM5 Active Studio Monitor...
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5 mm × 20 mm, 500 mA, 250 V, slow-blow Dimensions (W × H × D) 185 mm × 278 mm × 200 mm Weight 4.6 kg Ambient conditions Temperature range 0 °C…40 °C Relative humidity 20 %…80 % (non-condensing) ASM5 Active Studio Monitor...
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Technical specifications Further information Sales unit 1 pair Analogue input XLR Analogue mini jack input Analogue jack input Analogue RCA input Digital input Magnetic shielding Manual frequency correction ASM5 Active Studio Monitor...
In addition to the conduc‐ tors ‘Ground’ and ‘Signal’, in a balanced transmission a second core is added. This also transfers the signal, but phase-shifted by 180°. ASM5 Active Studio Monitor...
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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" TRS phone plug (mono, bal‐ anced) Signal (in phase, +) Signal (out of phase, –) Ground ASM5 Active Studio Monitor...
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Plug and connection assignment XLR plug (balanced) Ground, shielding Signal (in phase, +) Signal (out of phase, –) Shielding on plug housing (option) RCA connection Drawing and table indicate the pin assignment of an RCA plug. Signal Ground, shielding ASM5 Active Studio Monitor...
4. Try using another signal cable. Once the music gets loud, the Maybe overheating is imminent. Provide better ventila‐ high frequencies slump tion or reduce the volume. Distortion is audible Excessive input signal. Reduce the signal level. ASM5 Active Studio Monitor...
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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. ASM5 Active Studio Monitor...
Dispose of this device through an approved waste disposal firm or through your local waste facility. When discarding the device, comply with the rules and regulations that apply in your country. If in doubt, consult your local waste disposal facility. ASM5 Active Studio Monitor...
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