The box ACHAT 108 SUBA The box PRO User manual

ACHAT 108 SUBA
active subwoofer
user manual

Musikhaus Thomann e.K.
Treppendorf 30
96138 Burgebrach
Germany
Telephone: [phone]
email: [email protected]
Internet: www.thomann.de
17.01.2012

Table of contents
1 General notes............................................................................................................................................... 4
2 Safety instructions..................................................................................................................................... 7
3 Features....................................................................................................................................................... 11
4 Installation and starting up................................................................................................................ 12
4.1 Pin assignment.................................................................................................................................. 13
4.2 Tips on handling speakers............................................................................................................ 16
5 Connections and operating elements........................................................................................... 17
6 Technical specifications....................................................................................................................... 20
7 Protecting the environment.............................................................................................................. 22
Table of contents
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1 General notes
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 are subject to a process of continuous development. We therefore reserve the
right to make changes without notice.
This section gives an overview of the symbols and signal words used in this user manual.Symbols and signal words
General notes
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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.
CAUTION! This combination of symbol and signal word
indicates a possible dangerous situation that
can result in minor injury if it is not avoided.
NOTICE! This combination of symbol and signal word
indicates a possible dangerous situation that
can result in material and environmental
damage if it is not avoided.
Warning signs Type of danger
Warning – high-voltage.
General notes
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Warning signs Type of danger
Warning – danger zone.
General notes
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2 Safety instructions
This device is intended to be used in a sound reinforcement system. Use the device only as
described in this user manual. Any other use or use under other operating conditions is consid‐
ered to be improper and may result in personal injury or property 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 block areas of ventilation. Do not install 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:
nInputs: XLR/1/4" combi sockets, RCA sockets
nOutputs: 2 lockable NL4 mounting connectors for passive speaker boxes (top)
n8" woofer
nVolume and bass control
nBlack textured coating
Features
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4 Installation and starting up
Unpack and check carefully 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.
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.
Installation and starting up
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4.1 Pin assignment
The drawing alongside shows the pin assignment of the lockable NL-4 mounting connectors.
NL4 mounting connectors as
speaker connectors
Installation and starting up
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Drawing and table indicate the pin assignment of 1/4" TS jacks to be used with the unit.
1 Signal
2 Ground, shielding
XLR/1/4" combi sockets (balanced wiring) as signal inputs. Drawing and table indicate the pin
assignment of XLR plugs to be used with the unit.
1 Ground, shielding
2 Positive signal (+)
3 Negative signal (–)
1/4" jack socket as signal inputs
XLR connectors as signal inputs
Installation and starting up
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Drawing and table indicate the pin assignment of RCA plugs to be used with the unit.
1 Signal
2 Ground, shielding
RCA connectors as signal inputs
Installation and starting up
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4.2 Tips on handling speakers
We recommend you to set up the speakers in a way, that the sound signals can reach the audi‐
ence unobstructedly. It will often be helpful to mount the speakers on tripods. Thus, the sound
will be evenly spread with maximum range throughout the audience area.
Always use high grade cable to connect your equipment. Otherwise you won't reach max‐
imum sound quality.
For optimum results both impedance and power handling of the speakers must match the
requirements of the amplifier. Always follow the technical specifications of the speakers! The
overall impedance of the connected loudspeakers must not deceed the minimum output
impedance of the amp. The amps RMS output power should be 50 % above the power han‐
dling capacity of the connected speakers.
If you notice distortion during operation, either the amp or the speaker is overloaded. This may
permanently damage the amp or the speaker. Always reduce the volume when you hear dis‐
tortion.
Installation and starting up
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5 Connections and operating elements
Connections and operating elements
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1 POWER
This pilot lamp indicates that the device is switched on and operational.
2 SIG
This pilot lamp indicates an incoming input signal.
3 CLIP
Indicates overloading (Clipping). In this case the level of the input signal is too high.
4 BASS
Use this control to increase or attenuate the low frequencies.
5 VOLUME
Overall volume control (built-in subwoofer and connected external speakers).
6 Phase switch. Shifts the phasing of the subwoofer signal by 180°, if required. Thus, unwanted extinction effects due
to interaction with other speakers can be avoided.
Connections and operating elements
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7 INPUT
RCA jacks as signal inputs.
8 INPUT
XLR/1/4" combi sockets as signal inputs.
9 OUTPUT
NL4 sockets as connections for a pair of passive speakers.
10 IEC chassis connector with fuse holder for operating voltage supply.
11 POWER
Mains switch to power the unit on and off.
Connections and operating elements
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6 Technical specifications
Inputs XLR/1/4" combi sockets (balanced), RCA sockets (unbalanced)
Input impedance 20 kΩ(balanced), 10 kΩ(unbalanced)
Outputs Lockable NL4 mounting connectors
Frequency response 40…125 Hz
Output power 100 W (RMS) for built-in speaker
Passive speaker output (top) 2 ×60 W (RMS) @ 4 Ω
Crossover frequency 120 Hz
SPL 116 dB (max.)
Power supply AC 220 – 240 V , 50/60 Hz
Power consumption 275 W
Fuse 3.5 A / 250 V, slow blow, 5 mm × 20 mm
Technical specifications
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