Instruction manual [PDF] (10 pages)
- Updated: 09.04.2026
Document Preview & Text Transcription
© Copyright LOTRONIC 2014 K12A-K15A-K18A
Page 1
ACTIV SUBWOOFER
CAISSON DE BASSE ACTIF
K12A ( 15-2857 )
K15A ( 15-2858 )
K18A ( 15-2859 )
GB - INSTRUCTION MANUAL
F - MANUEL D’UTILISATION
© Copyright LOTRONIC 2014 K12A-K15A-K18A
Page 2
ENGLISH
Thank you for having chosen our activ subwoofer. For your own safety, please read this user manual carefully before installing the
device.
SAFETY INTRODUCTION
If the device has been exposed to temperature changes due to environmental changes, do not switch it on immediately. The
arising condensation could damage the device. Leave the device switched off until it has reached room temperature.
It is essential that the device is earthed. A qualified person must carry out the electric connection.
Make sure that the available voltage is not higher than stated at the end of this manual.
Make sure the power cord is never crimped or damaged. If it is damaged, ask your dealer or authorized agent to replace the
power cord.
Always disconnect from the mains, when the device is not in use or before cleaning it. Only handle the power cord by plug. Never
pull out the plug by tugging the power cord.
DISCONNECT DEVICE: Where the MAINS plug or an appliance coupler is used as the disconnect device, the disconnect device
shall remain readily operable.
CAUTION:
1. Please be aware that damages caused by manual modifications to the device are not subject to warranty. Keep away from
children and non-professionals.
2. The light doesn’t include any spare parts for repair, please check if all the parts are well installed and screws are fitted tightly
before operating. Do not use the light when the cover is open.
GENERAL GUIDELINES
This device is only allowed to be operated with an alternating current of max. 110-120VAC / 220-240VAC / 50-60Hz and was
designed for indoor use only.
Operate the device only after having familiarized yourself with its functions. Do not permit operation by person not qualified for
operating the device. Most damages are the result of unprofessional operation.
Please use the original packaging if the device is to be transported.
For safety reasons, please be aware that all modifications on the device are forbidden. Furthermore, any other operation may
lead to short-circuit, burns, electric shock, crash, etc. If this device will be operated in any way different to the one described in
this manual, the product may suffer damages and the guarantee becomes void.
© Copyright LOTRONIC 2014 K12A-K15A-K18A
Page 3
DESCRIPTION
8.
COOLING FAN
This fan is used used to refresh power amplifier. don't obstruct these parts
9.
POWER SWITCH
This switch is used to to switch the subwoofer built-in power amplifier on or off.
10. POWER SUPPLY SELEC
The main power supply is different between country ( in france :220V ). Select the good value with the switch ( 110V or
220V )
1. INPUT
Connect on this socket ( Combo XLR - Jack ) a line level
device as cd player, DVD player, mixer,....
2. LINK OUTPUT
This ouput is same signal as the input. Connect this
output to an other activ speaker or to a power amplifier
3. CUT FREQUENCY CONTROL
This control is use to adjust the cut frequency of
subwoofer. The system will cut all frequency of input
above the cut frequency to let only the bass frequencies
to the built-in power amplifier
4. LEVEL CONTROL
This control is used to adjust main level control of the
subwoofer.
5. PHASE SWITCH
This button is used to change the signal phase to the
opposite. If you think the bass sound from the subwoofer
is shifted with the satellite speaker signal, push on this
button
6. COOLING VENTS
This hole are used to refresh power amplifier. don't
obstruct these parts
7. AC SOCKET
Before to connect the ac cord on this socket, make sure
that the available voltage is not higher than stated at the
end of this manual
© Copyright LOTRONIC 2014 K12A-K15A-K18A
Page 4
TECHNICAL SPECIFICATIONS
K12A :
Woofer :
12'' ( 31cm )
Frequency Range (-10 dB) :
45 Hz - 500Hz
RMS Power Rating :
350 W
Impedance :
8 ohms
Max SPL :
107 dB SPL peak
System Sensitivity (1w/1m) :
95 dB SPL
Input sensitivity :
1.2V
Distortion :
<0,5%
Damping factor :
>200
Protection :
Soft start, short circuit, overheating
Power supply :
AC110-120V / 220-230V / 50-60Hz
Enclosure :
Low-frequency, 15 mm, plywood (multi layer)
Dimensions (D x W x H) :
490 mm x 460 mm x 414 mm
Net Weight :
25 kg
K15A :
Woofer :
15'' ( 38cm )
Frequency Range (-10 dB) :
45 Hz - 250Hz
RMS Power Rating :
450 W
Impedance :
8 ohms
Max SPL :
118 dB SPL peak
System Sensitivity (1w/1m) :
101 dB SPL
Input sensitivity :
1.2V
Distortion :
<0,5%
Damping factor :
>200
Protection :
Soft start, short circuit, overheating
Power supply :
AC110-120V / 220-230V / 50-60Hz
Enclosure :
Low-frequency, 15 mm, plywood (multi layer)
Dimensions (D x W x H) :
550 mm x 520 mm x 480 mm
Net Weight :
45 kg
Pages Preview: