thomann ASM5 User manual

ASM5
active studio monitor
user manual

Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: [phone]
E-mail: [email protected]
Internet: www.thomann.de
11.08.2015, ID: 350076

Table of contents
1 General information................................................................................................................................. 4
1.1 Further information........................................................................................................................... 5
1.2 Notational conventions.................................................................................................................... 6
1.3 Symbols and signal words............................................................................................................... 6
2 Safety instructions..................................................................................................................................... 9
3 Features....................................................................................................................................................... 13
4 Installation.................................................................................................................................................. 14
5 Connections and operating elements........................................................................................... 16
6 Technical specifications....................................................................................................................... 20
7 Plug and connection assignment.................................................................................................... 22
8 Troubleshooting...................................................................................................................................... 25
9 Protecting the environment.............................................................................................................. 27
Table of contents
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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
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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.
Personal consultation For personal consultation please contact our technical hotline.
Service If you have any problems with the device the
customer service will gladly assist you.
General information
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1.2 Notational conventions
This manual uses the following notational conventions:
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.
Letterings
General information
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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.
WARNING! This combination of symbol and signal word indicates a pos‐
sible dangerous situation that can 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.
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.
General information
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Warning signs Type of danger
Warning – suspended load.
Warning – danger zone.
General information
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2 Safety instructions
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.
This device may be used only by persons with sufficient physical, sensorial, and intellectual
abilities and having corresponding knowledge and experience. Other persons may use this
device only if they are supervised or instructed by a person who is responsible for their safety.
DANGER!
Danger for children
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.
Intended use
Safety
Safety instructions
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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.
DANGER!
Electric shock caused by short-circuit
Always use proper ready-made insulated mains cabling (power cord) with a pro‐
tective contact plug. Do not modify the mains cable or the plug. Failure to do so
could result in electric shock/death or fire. If in doubt, seek advice from a regis‐
tered electrician.
Safety instructions
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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. Do not place the device near
any direct heat source. Keep the device away from naked flames.
Safety instructions
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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. Failure to do so could result in damage to the device and
possibly injure the user.
Unplug the device before electrical storms occur and when it is unused for long
periods of time to reduce the risk of electric shock or fire.
Safety instructions
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3 Features
Special features of the device:
n2-way system: 5 1/4" bass / mid-range speaker and 3/4" tweeter
nXLR, 1/4" and RCA inputs
nBi-amping amplifier (class AB)
nSwitch for adapting treble and bass to the room acoustics
nSwitchable low-pass filter with a variable crossover frequency
nHousing made of vinyl-coated MDF
nProtection circuits against radio interference, over temperature, on / off switching noise
and to limit output current
nStandby function
Features
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4 Installation
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. Use the shortest possible high-
quality cables for all connections.
WARNING!
Risk of injury caused by falling objects
Make sure that the installation complies with the standards and rules that apply
in your country. Always secure the device with a secondary safety attachment,
such as a safety cable or a safety chain.
Installation
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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.
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.
Installation
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5 Connections and operating elements
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.
Control LED on the front panel
Connections and operating elements
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Rear panel
Connections and operating elements
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1 IEC chassis plug with fuse holder
Connection for the power supply.
If the fuse blows, replace it with a new fuse of the same type. You must first disconnect the device from the power
supply.
2[Power]
Mains switch. Turns the device on and off.
3 XLR chassis socket
Connection for a balanced line input signal.
4[Volume]
Volume control.
5[HF Trim]
Switch to adapt the treble to the room acoustics (–2 dB, 0 dB, +2 dB).
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6[Acoustic Space]
Switch to adapt the bass frequencies 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).
8 RCA jack to connect line level source devices (unbalanced).
9 1/4" phone socket for balanced input signal.
Connections and operating elements
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6 Technical specifications
Speakers 5 1/4" bass / mid-range speaker and 3/4" tweeter
Frequency response 55 Hz … 20 kHz
Crossover frequency 2,7 kHz
Inputs 1/4" phone socket (balanced), XLR chassis socket (balanced), RCA (unbalanced)
Output power Bass / mid-range amp: 40 W
Treble amp: 20 W
Maximum sound pressure level in 1 m distance 100 dB
Signal-to-noise ratio > 95 dB (typical, A-weighted)
Input impedance 20 kΩ(balanced), 10 kΩ(unbalanced)
Input sensitivity 85 V pink noise for 100 dB SPL in 1 m distance (volume control @ 100 %)
Operating supply voltage AC 230 V , 50 Hz
Technical specifications
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