The t.racks DS 2/4 User manual

DS 2/4
digital speaker
management system
user manual

Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: [phone]
E-mail: [email protected]
Internet: www.thomann.de
24.08.2015, ID: 198101

Table of contents
1 General notes............................................................................................................................................... 4
2 Safety notes.................................................................................................................................................. 6
3 Performance characteristics.............................................................................................................. 10
4 Installation and operation.................................................................................................................. 11
4.1 Pin assignment.................................................................................................................................. 12
5 Connectors and controls...................................................................................................................... 13
6 Functions..................................................................................................................................................... 18
7 Technical data........................................................................................................................................... 27
8 Cleaning....................................................................................................................................................... 29
9 Protecting the environment.............................................................................................................. 30
Table of contents
DS 2/4
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
digital speaker management system
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
DS 2/4
5

2 Safety notes
This device serves sound control and distribution of incoming audio signals to the connected
speakers. 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
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 notes
digital speaker management system
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 notes
DS 2/4
7

CAUTION!
Possible hearing damage
With loudspeakers or headphones connected, the device can produce volume
levels that may cause temporary or permanent hearing impairment.
Do not operate the device permanently at a high volume level. Decrease the
volume level immediately if you experience ringing in your ears or hearing
impairment.
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 notes
digital speaker management system
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 notes
DS 2/4
9

3 Performance characteristics
nTwo inputs, four outputs (2 × 2-way, 3-way, 4-way, 2-way-sub)
nThree digital 24-bit signal processors
nParametric five-band equalizers
nHigh- and low-pass filters
nControllable input and output sensitivity
nRuntime delay of up to seven milliseconds
nLimiter with adjustable threshold, attack, hold and decay
nRS232 interface
nInstallation in 19-inch racks (1 rack unit)
Performance characteristics
digital speaker management system
10

4 Installation and operation
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.
The unit has been designed for rack mounting in a standard 19-inch rack; it occupies one rack
unit.
Rack mounting
Installation and operation
DS 2/4
11

4.1 Pin assignment
XLR mounting sockets are provided for signal inputs. XLR mounting plugs are provided for
signal outputs. The figure and the table show the XLR pin assignment for balanced wiring.
1 Ground
2 Positive signal (+)
3 Negative signal (–)
XLR-connections for signal in-/
outputs
Installation and operation
digital speaker management system
12

5 Connectors and controls
Front panel
Connectors and controls
DS 2/4
13

1 Display
2BACK / NEXT
Cursor and navigation buttons. With the help of these buttons, you can place the cursor at the desired point in the
display text and switch between the different menus.
3MENU
Button to call the menu function.
4GAIN
Button to activate the parameterisation mode. Operate the button repeatedly to switch between the channels.
5ENTER
Button to confirm changes and input values and to open the different submenus.
6QUIT
Button to leave the opened menu or the menu function.
Connectors and controls
digital speaker management system
14

7 Jog wheel
The jog wheel can be used to set parameters, enter values and select menu options.
8 LED-display input channel A / B
The LEDs show the signal strength of the input signal. Reduce the output level of the device connected to the
affected channel in the event of overdrive ("CLIP" LED flickers or is permanently lit).
9 LED-display output channel 1 to 4 with MUTE switch
The LEDs show the signal strength of the output signal. In the event of overdrive ("CLIP" LED flickers or is perma‐
nently lit), reduce the output level of the affected channel. The MUTE switch can be used to mute the channels indi‐
vidually; in this case, the associated display LED lights up.
10 Mains switch to activate/deactivate the device.
Connectors and controls
DS 2/4
15

Rear panel
Connectors and controls
digital speaker management system
16

11 Plug for mains cable with fuse holder.
12 RS232 interface, 9-pin D-SUB socket.
13 OUTPUTS
Signal output 4 to 1 (male XLR panel connector).
14 INPUTS
Signal input channel A and B (female XLR panel connector).
Connectors and controls
DS 2/4
17

6 Functions
First switch on the speaker management system and then switch on the connected
devices to avoid activation crackling and possible damage to the connected speakers.
Operate the [MENU] button to open the "Xover sub menu". The settings of the crossover fre‐
quencies are stored in this menu.
This submenu permits calling of a stored configuration.
1. Operate the [ENTER] button to activate the "load a Xover" option.
2. Select the desired configuration with the jog wheel (1 to 10).
3. Confirm your selection with [ENTER]. The display shows ‘loading …’ .
"Xover sub menu"
"load a Xover"
Functions
digital speaker management system
18

A user configuration can be created in this submenu.
1. Operate the [ENTER] button and then [NEXT] to activate the "design a Xover" option.
2. Select the desired mode with the [NEXT] / [BACK] buttons or with the jog wheel, e.g.
"type: 2×2 way crossover“.
3. Confirm the selection with [ENTER]. The display shows ‘out 3&4 source B’ . Use the [NEXT] /
[BACK] buttons or the jog wheel to select the desired channel assignment.
Since the channels cannot be freely assigned to the controller channels, the
sum formation function "source A+B" should not be assigned here. This can
lead to problems in stereo operation. The controller assigns the channels as fol‐
lows: INPUT A to OUTPUT 1 and 2, INPUT B to OUTPUT 3 and 4.
4. Confirm your selection with [ENTER]. The display shows ‘stereo links: off’ . Use the [NEXT] /
[BACK] buttons or the jog wheel to select the desired option.
The "stereo links" option can be selected when the channels OP (OUTPUT) 1 and
3 as well as 2 and 4 are parameterised identically. The OUT1+3 and OUT2+4
values are then copied automatically and do not have to be entered repeatedly.
"design a Xover"
Functions
DS 2/4
19

5. Confirm the selection with [ENTER]. The display shows ‘new xover, ’ [ENTER] ‘to confirm’.
This submenu permits saving the user-specific and changed configurations in the device.
1. Operate the [ENTER] button and then twice the [NEXT] button to activate the "store a
Xover" option. The display shows ‘… store a xover’ .
2. Operate the [ENTER] button and use the jog wheel to select the desired memory slot
(1 to 10).
3. Operate the [ENTER] button. You may then select a user-specific designation. Use the jog
wheel and the [NEXT] button for this.
4. Confirm the selection with [ENTER]. The display shows ‘stored’ .
"store a Xover"
Functions
digital speaker management system
20