The box RA8 User manual

RA8
active
full-range speaker
user manual

Musikhaus Thomann e.K.
Treppendorf 30
96138 Burgebrach
Germany
Telephone: [phone]
E-mail: [email protected]
Internet: www.thomann.de
03.06.2014, ID: 219265

Table of contents
1 General notes............................................................................................................................................... 4
2 Safety instructions..................................................................................................................................... 6
3 Features....................................................................................................................................................... 10
4 Installation.................................................................................................................................................. 11
4.1 Tips on handling speakers............................................................................................................ 12
5 Connections and operating elements........................................................................................... 13
5.1 Pin assignment.................................................................................................................................. 18
6 Application examples............................................................................................................................ 19
7 Technical specifications....................................................................................................................... 24
8 Protecting the environment.............................................................................................................. 26
Table of contents
RA8
3

1 General notes
This user manual contains important information on 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 other users, 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 provides an overview of the symbols and signal words used in this user manual.Symbols and signal words
General notes
active full-range speaker
4

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.
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.
Warning – danger zone.
General notes
RA8
5

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 instructions
active full-range speaker
6

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
RA8
7

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
active full-range speaker
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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
RA8
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3 Features
Special features of this active full-range speaker:
nCoaxial full-range speaker
n1 × 8" woofer, 1 × 1" tweeter
nConnections: NL4 output (lockable), 1/4" phone sockets for LINE IN/OUT, AUX
nOutput power 100 W
nDispersion pattern 100° × 100°
nSelectable input sensitivity Line/Mic
nMulti-function housing with tripod flange and carrying handle
nStandby feature
Features
active full-range speaker
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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.
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
RA8
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4.1 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.
If you notice distortion during operation, the active speaker is overloaded. This may perma‐
nently damage the device. Always reduce the volume as soon as you hear distortion.
Installation
active full-range speaker
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5 Connections and operating elements
Front panel
Connections and operating elements
RA8
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1 LED PEAK
Indicates overload. If the LED flickers or lights up, the input level is too high.
2LINE VOL
Volume control for the LINE input. Turn this knob clockwise to increase the volume. Turn it counter-clockwise to
reduce it.
3TRE
Treble control. Turn this knob clockwise to increase the high frequencies. Turn it counter-clockwise to reduce them.
4BASS
Bass control. Turn this knob clockwise to increase the low frequencies. Turn it counter-clockwise to reduce them.
5AUX VOL
Volume control for the AUX input. Turn this knob clockwise to increase the volume. Turn it counter-clockwise to
reduce it.
6 LED SIGNAL
Indicates an incoming input signal.
Connections and operating elements
active full-range speaker
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Rear panel
Connections and operating elements
RA8
15

7LINE IN
1/4" phone input sockets for line signals.
8LINE OUT
1/4" phone output sockets for line signals.
9AUX
1/4" phone input sockets for AUX signals.
10 LINE/MIC
Push button to select the input sensitivity of the device (line or microphone level).
11 OUTPUT
NL4 mounting connector (1+/1–) to connect another passive speaker.
Connections and operating elements
active full-range speaker
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12 STANDBY
Push button to enable or disable the energy saving mode.
When the box receives no signal for 60 minutes, it switches to standby mode. When it receives a signal again, it auto‐
matically switches back to normal mode.
LED ACTIVE
Power indicator LED. This LED is permanently on in normal mode. It goes off when the energy-saving mode is ena‐
bled and the box enters the standby mode.
LED STANDBY
Standby mode. This LED lights up when the energy saving mode is enabled and the box enters the standby mode. It
goes off again when the box switches back to normal.
13 ON / OFF
Mains power switch to turn the device on or off.
14 IEC chassis connector with fuse holder for operating voltage supply.
Connections and operating elements
RA8
17

5.1 Pin assignment
The drawing alongside shows the pin assignment of the lockable NL4 mounting connector
(1+/1–).
Drawing and table indicate the pin assignment of 1/4" TS phone plugs to be used.
1 Signal
2 Ground
NL4 mounting connector for
speaker connection
Phone plugs for signal in and
outputs
Connections and operating elements
active full-range speaker
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6 Application examples
If you have a second speaker for stereo playback, the input signal at the left LINE IN
channel is reproduced by the RA8. The input signal from the right LINE IN channel is
fed to the right LINE OUT and to the OUTPUT socket, respectively.
Application examples
RA8
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Line signal directly fed into the box, right channel looped through to second RA8
Application examples
active full-range speaker
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