PA 108 A
active 2 way full-range
speaker
user manual
Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: +49 (0) 9546 9223-0
E-mail: info@thomann.de
Internet: www.thomann.de
20.05.2016, ID: 157977
Table of contents
1 General notes............................................................................................................................................... 4
2 Safety instructions..................................................................................................................................... 6
3 Features....................................................................................................................................................... 10
4 Installation.................................................................................................................................................. 11
4.1 Pin assignment.................................................................................................................................. 12
4.2 Tips on handling speakers............................................................................................................ 13
5 Connections and operating elements .......................................................................................... 14
6 Technical specifications....................................................................................................................... 18
7 Protecting the environment.............................................................................................................. 20
Table of contents
PA 108 A
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 2 way 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
PA 108 A
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 2 way 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
PA 108 A
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 2 way full-range speaker
8
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
PA 108 A
9
3 Features
Special features of this active 2-way full-range speaker box:
n 1 × 8" woofer
n Horn, dispersion 90° × 60°
n Output power 80 W (Bass) + 50 W (Treble)
n 2-band tone stack
n XLR in and output
n Switchable low cut @ 120 Hz
n Monitor feets available for use as floor monitor
n Tripod mounting flange retrofittable
n Standby feature
Features
active 2 way full-range speaker
10
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 highquality 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
PA 108 A
11
4.1 Pin assignment
You can use XLR plugs with balanced or unbalanced wiring. In the following, we will give you
an overview of the various options.
XLR mounting sockets are used for signal inputs. XLR mounting plugs provide the output sig‐
nals. Drawing and table indicate the XLR pin assignment.
Balanced wiring:
1 Ground, shielding
2 Positive signal (+)
3 Negative signal (–)
XLR connections for signal in
and outputs
Installation
active 2 way full-range speaker
12
Unbalanced wiring:
1 Ground, shielding
2 Signal
3 Bridged to pin 1
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.
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
PA 108 A
13
5 Connections and operating elements
Connections and operating elements
active 2 way full-range speaker
14
1 VOLUME
Volume control. Turn this knob clockwise to increase the volume. Turn it counter-clockwise to reduce the volume.
2 TREBLE
Treble control. Turn this knob clockwise to increase the high frequencies. Turn it counter-clockwise to attenuate
them.
3 BASS
Bass control. Turn this knob clockwise to increase the low frequencies. Turn it counter-clockwise to attenuate them.
4 OUTPUT
An XLR mounting plug servers as line out to connect further active speakers.
5 INPUT
An XLR mounting socket servers as signal input with switchable sensitivity.
6 IEC chassis connector for operating voltage supply with fuse holder.
Connections and operating elements
PA 108 A
15
7 ON/OFF
Use the mains switch to turn the unit on or off.
8 115V/60Hz — 230V/50Hz
Mains voltage selector. Before switching the unit on, make sure this selector is set correctly for the actual supply
voltage at the operating location!
9 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.
Connections and operating elements
active 2 way full-range speaker
16
10 LINE/MIC
Push button to select the input sensitivity (line or microphone level).
LED MIC
This LED lights up if the input sensitivity is set to MIC (microphone level).
LED LINE
This LED lights up if the input sensitivity is set to LINE (line level).
11 120Hz
Use this switch to attenuate the low frequencies below 120 Hz. The function reduces the transmission of impact noise
and so increases the woofers life time.
12 CLIP
Indicates clipping. If this LED flickers or lights up, the input level is too high.
Connections and operating elements
PA 108 A
17
6 Technical specifications
System 2-way full-range active speaker box with built-in crossover
Speakers 1 × 8" woofer
1 × horn, dispersion 90° × 60°
Connections XLR in
XLR out
Frequency response 65 Hz … 18 kHz (–3 dB)
60 Hz … 20 kHz (–10 dB)
Sound pressure level (1 m) 116 dB
Level adaptation Bass: ± 10 dB, 100 Hz
Treble: ± 10 dB, 10 kHz
Output power Bass: 80 W
Treble: 50 W
Technical specifications
active 2 way full-range speaker
18
THD Line: 0.02 %
Microphone: 0.04 %
Load impedance Bass: 8 Ω
Treble: 8 Ω
Input impedance
Line: 20 kΩ
Microphone: 10 kΩ
Operating voltage supply
AC 230 V , 50 Hz
AC 115 V , 60 Hz
Housing Polypropylene, trapezoid
Dimensions (W × H × D) 277 mm × 400 mm × 257 mm
Weight 10 kg
Technical specifications
PA 108 A
19
7 Protecting the environment
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.
This product is subject to the European Waste Electrical and Electronic Equipment Directive
(WEEE). Do not dispose with your normal household waste.
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.
Disposal of the packaging mate‐
rial
Disposal of your old device
Protecting the environment
active 2 way full-range speaker
20
Notes
PA 108 A
21
Notes
active 2 way full-range speaker
22
Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de
Loading...