the box pro Achat 404 MKII Passive Speaker User Manual
- June 15, 2024
- The Box Pro
Table of Contents
Achat 404 MKII
Passive Speaker
Thomann GmbH
Hans-Thomann-Straße 1
96138 Burgebrach
Germany
Telephone: +49 (0) 9546 9223-0
Internet: www.thomann.de
22.08.2023, ID: 268594, 277963 (V2)
General information
This document contains important instructions for the safe operation of the
product. Read and follow the safety instructions and all other instructions.
Keep the document for future reference. Make sure that it is available to all
those using the product. If you sell the product to another user, be sure
that they also receive this document.
Our products and documentation are subject to a process of continuous
development. They are therefore subject to change. Please refer to the latest
version of the documentation, which is ready for download under
www.thomann.de.
1.1 Symbols and signal words
In this section you will find an overview of the meaning of symbols and signal
words that are used in this document.
| 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.
WARNING!| This combination of symbol and signal word indicates a possible
dangerous situation that can result in death or serious injury if it is not
avoided.
NOTICE!| This combination of symbol and signal word indicates a possible
dangerous situation that can result in material and environmental damage if
it is not avoided.
Warning signs| Type of danger
| Warning – danger zone.
Safety instructions
Intended use
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 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.
Safety
DANGER!
Risk of injury and choking hazard for children!
Children can suffocate on packaging material and small parts. Children can
injure themselves when handling the device. Never allow children to play with
the packaging material and the device. Always store packaging material out of
the reach of babies and small children. Always dispose of packaging material
properly when it is not in use. Never allow children to use the device without
supervi‐ sion. Keep small parts away from children and make sure that the
device does not shed any small parts (such knobs) that children could play
with.
WARNING!
Possible hearing damage due to operating the device at a high volume!
The device can produce volume levels that, when operated at a high volume, may
cause temporary or permanent hearing impairment. Over an extended period of
time, even levels that seem to be uncritical can cause hearing damage. Avoid
operating the device at excessively high volumes over an extended period of
time. 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 adequate ear-muffs.
NOTICE!
Damage to the device if operated in unsuitable ambient conditions!
The device can be damaged if it is operated in unsuitable ambient conditions.
Only operate the device indoors within the ambient conditions specified in the
“Technical specifications” chapter of this user manual. Avoid operating it in
environments with direct sunlight, heavy dirt and strong vibrations. Avoid
operating it in environments with strong temperature fluctuations. If
temperature fluctuations cannot be avoided (for example after transport in low
outside temperatures), do not switch on the device immediately.
Never subject the device to liquids or moisture. Never move the device to
another location while it is in operation. In environments with increased dirt
levels (for example due to dust, smoke, nicotine or mist): Have the device
cleaned by qualified specialists at regular intervals to prevent damage due
to overheating and other malfunctions.
Features
Special features of this high quality speaker:
- Connection options: 2 lockable NL2 jacks (1+/1), screw terminals
- 36 mm pole mount flange
- Wall mounting optionally available
- Black textured paint
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 off. Use the shortest possible
high-quality cables for all connections. Take care when running the cables to
prevent tripping hazards.
NOTICE!
Possible property damage to adjacent devices due to magnetic fields.
Speakers generate a static magnetic field. This magnetic field can affect
other neighbouring units and in unfavourable cases damage them.
Ensure that speakers are always a sufficient distance away from sensitive
equipment that may be affected by an external magnetic field.
NOTICE!
Potential property damage due to unsuitable stands!
If the device is mounted on an unsuitable stand, there is a risk that the
stand will fall over and cause damage.
Only use stands whose maximum bearing capacity is at least as high as the
weight of the device. Always ensure that the stand is stable.
4.1 Tips on handling speakers
We recommend you to set up the speakers in a way, that the sound signals can
reach the audience 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.
For optimum results both impedance and power handling of the speakers must
match the requirements of the amplifier. Always follow the technical
specifications of the speakers! The overall impedance of the connected
loudspeakers must not deceed the minimum output impedance of the amp. The
amps max. RMS output power should be 50 % above the power handling capacity of
the connected speakers.
If you notice distortion during operation, either the amp or the speaker is
overloaded. This may permanently damage the amp or the speaker. Always reduce
the volume when you hear distortion.
4.2 Connections
- FULL RANGE INPUT | Input, designed as a lockable NL2 connection (1+/1–).
- FULL RANGE THRU | Output for an additional speaker, designed as a lockable NL2 connection (1+/1– looped through).
- Screw terminal input
NL2 chassis connectors for speaker connections
The adjoining figure shows the pin assignment of the lockable NL2 chassis connectors.
Technical specifications
| Configuration | 4 × 4” speaker, 1” BMS driver |
|---|---|
| Input connections | NL2 |
Screw terminals
Frequency range| 160 Hz…20 kHz, –3 dB
150Hz…20 kHz, 10dB
Load capacity| 150 W (RMS), 600 W (peak)
Sensitivity (1 W/1 m)| 88 dB
Rated impedance| 8 Ω
Sound pressure level| 121 dB max.
Beam angle (H × V)| 150° × 30°
Dimensions (W × H × D)| 144 mm × 692 mm × 166 mm
Weight| 8 kg
Ambient conditions| Temperature range
Relative humidity
0 °C…40 °C
20 %…80 % (non-condensing)
Frequency response
Protecting the environment
Disposal of the packaging material
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 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.