The box MA 1220 MKII User manual

Owner‘s Manual
Active 2-way Full Range Monitor
MA 1220 MKII
12/1“

2
Important Safety Instructions
For your own safety you must read this section in full
rst!
Intended use
This active speaker is intended exclusively for the transmission of audio
signals according to this manual and the specications given here. By
using it in any other way you face the risk of electric shock. No warranty
claims will be granted for damage resulting from improper use!
Risk of electrical shock!
Connect the device only to a properly wired and earthed electrical wall•
socket providing the mains voltage listed in the chapter “Technical
specications” of this manual.
NEVER operate the speaker box if the power plug or power the cord is •
damaged.
NEVER submerse the speaker box in water. Liquid getting into the box •
will risk a short circuit and will be hazardous.
NEVER expose the speaker box to direct precipitation or moisture •
and never use it in a damp or wet environment. This speaker box was
developed for indoor use only. Do not use it outdoors.
Do not subject the speaker box to high temperatures, direct sunlight, •
severe vibrations, shocks or tremors, or excessive dust.
Ensure that the power cord does not become wet during operation.•
You must NEVER open the housing of the speaker box or try to repair it. •
There are no user serviceable parts inside. Warranty will become void if
you open the housing and you face the risk of electric shock.
Do not place objects containing uids, e.g. ower vases or beer bottles, •
on or near the device.
Notice regarding power disconnection:•
To switch the device off and to disconnect it from the power source the
power plug must be removed from the power socket. For this reason the
device should be placed in a position where a constant unobstructed
access to the power socket is assured, thus in an emergency situation
you are able to immediately pull out the power plug. To eliminate the
risk of re you must completely disconnect the power plug from the
power socket after the device has been used.

3
Always grasp the power cord by the plug. Do not pull on the cord itself •
and never touch the power cord with wet hands as this could result
in a short circuit or an electrical shock. Do not place the device, other
speaker cabinets or anything else on the power cord and make sure
that it does not become clamped. Place the power cord in a position
where it can not be trod on. A damaged power cord can cause a re
or an electrical shock. Check the power cord from time to time. Should
it become damaged contact our customer service centre to have it
replaced.
 Riskofre!
NEVER leave the device unattended while it is switched on.•
Do not place any open sources of re, like candles, on the device.•
Never operate the speaker box in the vicinity of heat sources such as •
cookers, heating elements, lighting equipment, smoke machines, or
other heat producing installations.
When a thunderstorm with the risk of lightening threatens please •
disconnect the device from the mains power.
Risk of personal injury!
Keep the power cord and device away from children. Children •
frequently underestimate the dangers of electrical equipment.
Ensure a safe location for the device• . Flying and installation of this
speaker cabinet must be carried out by suitably qualied personnel
following the approved safety standards.
Do not stack the speaker cabinet in a manner that could cause injury •
should a cabinet become dislodged.
Do not operate the device if it has sustained a fall or is damaged. •
Arrange for the device to be checked and/or repaired by qualied
technicians.
Important!• Keep sufcient distance from the speaker box when
operated with high volume level. Listening to music with high
sound pressure level may cause permanent damage to your
hearing!
Before connecting or operating this speaker box, please study and •
follow the instruction manuals of all devices connected to the box,
paying particular attention to the operating precautions and wiring
procedure.

4
The operating elements
1. LINE/MIC
Level adjust switch for input 1. Press down this switch, when
connecting audio signals with microphone level to INPUT 1. Release
the switch, when connecting line level signals.
2. Input 1 socket
Here you can connect microphone or line level audio signals to be
transmitted by the monitor. Select the desired input level using the
LINE/MIC switch q.
3. Input 2 socket
Here you can connect line level audio signals to be transmitted by the
monitor.

5
4. Line output socket
Output level is -0dB, connect this output signal to the line input socket
of another unit.
5. Speaker output socket
Outputs a at frequency curve, can drive a standard passive speaker
with minimum impedance of 8Ω. This output is optimized for usage of
model M 1220 MK2, available at Thomann as well.
6. Power supply input socket
Connect the power cable here. With fuse and ON/OFF switch, the
indicator is lit up when the unit is turned on. After usage, please turn
off the power switch. Input Voltage: AC230V~, 50Hz/60Hz.
7. Peak indicator
When the output volume is at maximum, this indicator will be ashing.
Please then reduce the volume to assure safe operation with clear
audio output.
8. Volume 1 control
Turn it clockwise to increase the volume of the Input 1, turn it
counterclockwise to reduce the volume. Please take care, that the
peak indicator does not lit up.
9. Volume 2 control
Turn it clockwise to increase the volume of the input 2, turn it
counterclockwise to reduce the volume. Please take care, that the
peak indicator does not lit up.
10. Treble control
Turn it clockwise to increase the high frequencies. Turn it
counterclockwise to attenuate high frequencies.
11. Bass control
Turn it clockwise to increase the low frequencies. Turn it
counterclockwise to attenuate the low frequencies.

6
Technical Measurements
Frequency response, SPL/2.83v Waterfall spectrum analysis
Harmonic distortion 106dB/2.5m, nominal impedance
Cleaning and Care
Do not attempt to clean the plastic enclosure with solvents or
petrochemical based cleaners. Wipe it only with a slightly damp cloth.
Disposal
Do not dispose of the device at the end of his operating life
in your normal domestic waste. This device is subject to the
European Guidelines 2002/96/EC.
Have the product disposed of by a professional disposal company of by•
your communal disposal facility.
Observe the currently applicable regulations. In case of doubt contact •
your disposal facility.
Dispose of packaging materials in an environmentally •
responsible manner.

7
Technical specifications
Mains voltage ............................... : AC230V~, 50/50Hz
System .......................................... : Built-in crossover two way full
....................................................... : range active speaker
Cabinet material ........................... : Plywood covering black toast painting
Cabinet Colour .............................. : Black
Driver Quantity .............................. : 1 x 12” (Bass), 1 x 44mm Driver
Tweeter Dispersion (H x V) ........... : (55° - 100°) x 50°
Frequency Response (-3dB) ........ : 65Hz - 18kHz
Max SPL (1m) ............................... : 123dB (Free Field)
Level Adjust .................................. : ±12dB (10kHz) - Treb
....................................................... : ±12dB (100Hz) - Bass
Output power ................................ : 160W/8 Ohm, 250W/4 Ohm
Distortion ...................................... : Line - 0.02%, Microphone 0.04%
Load impedance ........................... : 160W@8Ω, 250W@4Ω
Input impedance ........................... : Balanced - 20kΩ, unbalanced - 10kΩ
Connectors ................................... : XLR, K3P, J3P, Speakon 1+ 1-
Dimensions (WxDxH) ................... : 396 x 408 x 536mm
Packing Dimensions (WxDxH) ..... : 622 x 492 x 502mm
Net Weight .................................... : 18 kg
Gross Weight ................................ : 20 kg
As we continuously strive to improve our products, all specications and
appearance are subject to change without prior notice.

© 2010
Musikhaus Thomann
Treppendorf 30 • 96138 Burgebrach • Germany
www.thomann.de