thomann box pro DSP 18 Sub User Manual

DSP 18 Sub

active speaker

user manual

Musikhaus Thomann

Thomann GmbH

Hans-Thomann-Straße 1

96138 Burgebrach

Germany

Telephone: [phone]

E-mail: [e-mail]

Internet: www.thomann.de

18.06.2019, ID: 424348 (V2)

Table of contents

Table of contents

1 General information................................................................................................................................. 4

1.1 Further information........................................................................................................................... 5

1.2 Notational conventions.................................................................................................................... 6

1.3 Symbols and signal words............................................................................................................... 6

2 Safety instructions..................................................................................................................................... 8

3 Features....................................................................................................................................................... 13

4 Installation.................................................................................................................................................. 14

4.1 Tips on handling speakers............................................................................................................ 15

5 Connections and controls................................................................................................................... 16

6 Technical specications....................................................................................................................... 19

7 Plug and connection assignment.................................................................................................... 22

8 Protecting the environment.............................................................................................................. 25

DSP 18 Sub

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General information

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.

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1.1 Further information

General 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

Online guides

Personal consultation For personal consultation please contact our technical hotline.

Service

Use the search function in the electronic version to nd the topics of
interest for you quickly.

Our online guides provide detailed information on technical basics
and terms.

If you have any problems with the device the customer service will
gladly assist you.

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General information

1.2 Notational conventions

This manual uses the following notational conventions:

Letterings

The letterings for connectors and controls are marked by square brackets and italics.

Examples: [VOLUME] control, [Mono] button.

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.

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General information

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.

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Safety instructions

2 Safety instructions

Intended use

Safety

8

This device is designed for sound reinforcement. 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 sucient 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.

active speaker

Safety instructions

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.

DANGER!
Electric shock caused by short-circuit

Always use proper ready-made insulated mains cabling (power cord). Do not
modify the mains cable. Failure to do so could result in electric shock/death or
re. If in doubt, seek advice from a registered electrician.

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Safety instructions

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 su‐
cient ear protectors.

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.

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Safety instructions

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 re.

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Safety instructions

NOTICE!
Possible damage due to installation of a wrong fuse

The use of dierent types of fuses can cause serious damage to the unit. Fire
hazard!

Only fuses of the same type may be used.

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3 Features

Features

The device is characterized by the following features:

n 18" woofer
n Class D amplier
n Built-in sound processor
n Connection options: XLR connections for signal in and outputs (L+R, and crossover)
n Phase switch
n Switchable Low-Pass lter 90/120 Hz
n Pole mount (M20)
n Two carrying handles
n Casing made of medium-density breboard (MDF)
n Powder-coated front grille

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Installation

4 Installation

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.

CAUTION!
Risk of injury due to heavy weight

Due to the heavy weight of the device, at least two persons are required for trans‐
port and installation.

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active speaker

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

NOTICE!
Possible property damage by magnetic elds

Loudspeakers produce a static magnetic eld. Therefore, maintain an appropriate
distance to devices that can be adversely aected or damaged by an external
magnetic eld.

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Connections and controls

5 Connections and controls

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Connections and controls

1 [Balanced Outputs]

Balanced line signal outputs, designed as XLR chassis plug.

2 [Balanced Inputs]

Balanced line signal inputs, designed as XLR chassis socket.

3 [Phase]

If necessary, this switch shifts the phase of the subwoofer signal by 180 °. This avoids unwanted cancellation eects in
combination with other speakers.

4 [Subwoofer Level]

Volume control.

5 [Xover]

Crossover frequency switch Toggles between 90 Hz and 120 Hz.

6 [Outputs Mode]

This switch is used when using active speaker boxes. In [Link] position, all signals from 20 Hz to 20 kHz are output to
the speaker boxes. If the switch is in [Xover] position, only signals above 90 Hz/120 Hz are output to the speaker
boxes.

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Connections and controls

7 [Signal]

LED (green): Indicates that the input signal is present.

8 [Limit]

LED (red): Indicates overload. In this case, the level of the line input signal is too high.

9 [Power]

LED (blue): Indicates that operating voltage is present.

10 [POWER]

Mains switch. Turns the device on and o.

11 IEC chassis plug with fuse for the power supply.

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Technical specications

6 Technical specications

Speaker 1 × 18" woofer

Input connections Voltage supply IEC chassis plug C14

Line signal 2 × XLR chassis socket

Input impedance 22 kΩ

Output connections Line signal 2 × XLR chassis plug

Output power RMS: 800 W

Peak: 1800 W

Frequency range 30 Hz … 150 Hz

Crossover frequency 80 Hz or 120 Hz

Signal-to-noise ratio 70 dB

Sound pressure level (SPL), max. 128 dB

Power consumption 980 W

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Technical specications

Supply voltage

Fuse 5 mm × 20 mm, 5 A, 250 V, slow-blow

Dimensions (W × H × D) 610 mm × 680 mm × 745 mm

Weight 39 kg

Ambient conditions Temperature range 0 °C…40 °C

Further information

Design Bass reex

Truss-capable No

Stand mounting Yes

Casters No

230 V 50 Hz

Relative humidity 50 %, non-condensing

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Frequency response

Technical specications

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Plug and connection assignment

7 Plug and connection assignment

Introduction

Balanced and unbalanced trans‐
mission

22

This chapter will help you select the right cables and plugs to connect your valuable equip‐
ment in such a way that a perfect sound experience is ensured.

Please note these advices, because especially in ‘Sound & Light’ caution is indicated: Even if a
plug ts into the socket, an incorrect connection may result in a destroyed power amp, a short
circuit or ‘just’ in poor transmission quality!

Unbalanced transmission is mainly used in semi-professional environment and in hi use.
Instrument cables with two conductors (one core plus shielding) are typical representatives of
the unbalanced transmission. One conductor is ground and shielding while the signal is trans‐
mitted through the core.

Unbalanced transmission is susceptible to electromagnetic interference, especially at low
levels, such as microphone signals and when using long cables.

In a professional environment, therefore, the balanced transmission is preferred, because this
enables an undisturbed transmission of signals over long distances. In addition to the conduc‐
tors ‘Ground’ and ‘Signal’, in a balanced transmission a second core is added. This also transfers
the signal, but phase-shifted by 180°.

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XLR plug (balanced)

Plug and connection assignment

Since the interference aects both cores equally, by subtracting the phase-shifted signals, the
interfering signal is completely neutralized. The result is a pure signal without any noise inter‐
ference.

1 Ground, shielding

2 Signal (in phase, +)

3 Signal (out of phase, –)

4 Shielding on plug housing (option)

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Plug and connection assignment

XLR plug (unbalanced)

1 Ground, shielding

2 Signal

3 Bridged to pin 1

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8 Protecting the environment

Disposal of the packaging mate‐
rial

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.

Disposal of your old device

This product is subject to the European Waste Electrical and Electronic Equipment Directive
(WEEE) in its currently valid version. Do not dispose with your normal household waste.

Dispose of this device through an approved waste disposal rm 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.

Protecting the environment

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Notes

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Musikhaus Thomann · Hans-Thomann-Straße 1 · 96138 Burgebrach · Germany · www.thomann.de