DSP 4x4 Mini Amp
digital speaker
management system
user manual
Musikhaus Thomann
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: +49 (0) 9546 9223-0
E-mail: [email protected]
Internet: www.thomann.de
15.01.2021, ID: 495806
Table of contents
1 General information................................................................................................................................. 4
1.1 Further information........................................................................................................................... 5
1.2 Notational conventions.................................................................................................................... 6
1.3 Symbols and signal words............................................................................................................... 7
2 Safety instructions..................................................................................................................................... 9
3 Features....................................................................................................................................................... 13
4 Installation and starting up................................................................................................................ 14
5 Connections and controls................................................................................................................... 16
6 Operating on the computer............................................................................................................... 18
7 Technical specications....................................................................................................................... 35
8 Plug and connection assignment.................................................................................................... 38
9 Protecting the environment.............................................................................................................. 39
Table of contents
DSP 4x4 Mini Amp
3
1 General information
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 and user manuals are subject to a process of continuous development. We there‐
fore reserve the right to make changes without notice. Please refer to the latest version of the
user manual which is ready for download under www.thomann.de.
General information
digital speaker management system
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1.1 Further information
On our website (www.thomann.de) you will nd lots of further information and details on the
following points:
Download This manual is also available as PDF le for you to download.
Keyword search
Use the search function in the electronic version to nd 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
DSP 4x4 Mini Amp
5
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.
Texts and values displayed on the device are marked by quotation marks and italics.
Examples: ‘24ch’ , ‘OFF’ .
Letterings
Displays
General information
digital speaker management system
6
The individual steps of an instruction are numbered consecutively. The result of a step is
indented and highlighted by an arrow.
Example:
1. Switch on the device.
2. Press [Auto].
ð
Automatic operation is started.
3. Switch o the device.
1.3 Symbols and signal words
In this section you will nd an overview of the meaning of symbols and signal words that are
used in this manual.
Instructions
General information
DSP 4x4 Mini Amp
7
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.
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 information
digital speaker management system
8
2 Safety instructions
This device is intended to be used for amplication, mixing and playback of signals from
musical instruments and microphones. 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 sucient 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.
Intended use
Safety instructions
DSP 4x4 Mini Amp
9
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.
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.
Do not use the device if covers, protectors or optical components are missing or
damaged.
Safety
Safety instructions
digital speaker management system
10
NOTICE!
Risk of re
Do not block areas of ventilation. Do not install the device near any direct heat
source. Keep the device away from naked ames.
Safety instructions
DSP 4x4 Mini Amp
11
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.
Only operate the device within the ambient conditions specied in the chapter
‘Technical specications’ of this user manual. Avoid heavy temperature uctua‐
tions and do not switch the device on immediately after it was exposed to tem‐
perature uctuations (for example after transport at low outside temperatures).
Dust and dirt inside can damage the unit. When operated in harmful ambient
conditions (dust, smoke, nicotine, fog, etc.), the unit should be maintained by
qualied service personnel at regular intervals to prevent overheating and other
malfunction.
Safety instructions
digital speaker management system
12
3 Features
n Ultra-compact 4-channel DSP and 4-channel power amplier
n Ideal for small installations and in combination with ceiling speakers
n Inputs: 4 × 1/4" jack socket (balanced)
n Outputs: 4 ×1/4" jack socket (balanced) and screw terminals
n USB connection for control via PC using the supplied software (cable included)
n Comprehensive setting options for optimal sound
– Parametric Equalizer
– Graphic Equalizer
– High- and low-pass lters
– Noise Gate
– Limiter
– Phase inversion
Features
DSP 4x4 Mini Amp
13
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 product against vibration, dust and moisture during
transportation or storage use the original packaging or your own packaging material suitable
for transport or storage, respectively.
Create all connections while the device is o. Use the shortest possible high-quality cables for
all connections. Take care when running the cables to prevent tripping hazards.
Installation and starting up
digital speaker management system
14
The gure schematically shows how the device can be controlled via a computer's USB port.Conguration example
Installation and starting up
DSP 4x4 Mini Amp
15
5 Connections and controls
Connections and controls
digital speaker management system
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Front panel
1 LEDs [1], [2], [3], [4]
The LED lights up when a signal is present at the respective input.
2 Inputs [CH 1] … [CH 4], designed as 1/4" phone jack (mono, balanced).
3 [USB]
USB port
4 [POWER]
This LED lights when the device is turned on.
Rear panel
5 [SPEAKER OUTPUT]
Screw terminal strip
6 [PASSIVE OUTPUT]
Outputs [CH 1] … [CH 4], designed as 1/4" phone jack (mono, balanced).
7 Power cord
Connections and controls
DSP 4x4 Mini Amp
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6 Operating on the computer
1. Insert the software CD into the disk drive of your Windows PC and start the installation
programme that matches the device version.
2. Follow the instructions of the installation programme to completion.
3. Connect your PC to the device via a USB cable and turn on the device.
ð
The operating system detects the newly added USB device.
4. Open the PC programme. It automatically detects the connected device.
ð
In the upper right corner of the programme window the marking ‘Online’ appears.
1. Click on the ‘Online’ button in the programme window.
2. Close the programme window.
Install and start the software.
Exit software
Operating on the computer
digital speaker management system
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All tabs of the programme window have a similar structure and are divided into the following
areas:
Components of the programme
window
Operating on the computer
DSP 4x4 Mini Amp
19
1 Tab for selecting a function group
2 Main menu
3 Button for the status of the connection to the PC
4 Display area
5 Control area
6 Buttons for quick access to important presets
Operating on the computer
digital speaker management system
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