Active speaker system


  • 2 unbalanced stereo line inputs
  • Balanced stereo line input
  • Active and passive speaker set
  • 3-way construction
  • 2-band master EQ


  • Education
  • Corporate spaces
  • Residential

The LX503 is a 3-way stereo loudspeaker system consisting of an active and passive unit to be linked with each other. It offers an easy and flexible solution for a wide variation of applications, producing a clear and powerful sound. The integrated amplifier is capable of delivering a power of 2 x 40 Watt and has a line level input allowing the speaker system to be directly connected to audio sources such as CD-players, DVD players, laptops, MP3 players or many other line level audio sources. The line input is performed in three different ways, making it convenient to connect any kind of audio source without complexes. Unbalanced audio sources can be connected to either the RCA or 3.5mm jack connectors, while balanced audio sources can be connected to the Euro-Terminal block connectors. A volume potentiometer allows the user to adjust the level of loudness while the two-band tone control allows equalization of treble and bass. The mode can be selected between mono or stereo by means of a switch. The magnetically shielded loudspeakers ensure a complete immunity against interference and radiation caused by external devices, reducing the hum and noise to an absolute minimum. The passive loudspeaker should be connected to the active loudspeaker by means of a two-pin Euro-Terminal block connector and the main power should be fed to the IEC socket at the back of the active loudspeaker. Both speakers come with a sturdy steel mounting bracket, allowing proper mounting and inclining. Available in black (/B) and white (/W).

System specifications
RMS Power 2 x 40 W
Sensitivity (1W/1m) 88 dB
Frequency Response (± 3 dB) 80 Hz - 20 kHz
Inputs Connector RCA / Cinch (Unbalanced)
3.5 mm Jack (Unbalanced)
3-pin Euro Terminal block (Balanced)
Outputs Connector 2-pin Euro Terminal block (Speaker)
Power Connector IEC Power connector
Drivers HF 3/4”
MF 1”
LF 5 1/4”
Product Features
Dimensions 7.0079 x 9.45 x 7.60 " (W x H x D)
Weight 12.35 lb
Operating temperature -4 °F ~ 113 °F
Construction ABS
Bracket Coated steel
Colours Black (LX503MK2/B)
White (LX503MK2/W)

Information sheet English

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Information sheets other languages

LX503MK2/B - Black version

Code Quantity Length Width Height Cubage Weight
PRODUCT 1 0,18 m 0,18 m 0,24 m 0,00761 m³ 5,40 kg
PCS 1 0,47 m 0,21 m 0,28 m 0,02685 m³ 6,20 kg
INNER 1 - - - - -
MASTER 4 0,48 m 0,56 m 0,43 m 0,11558 m³ 24,80 kg
PALLET 96 - - - - -

LX503MK2/W - White version

Code Quantity Length Width Height Cubage Weight
PRODUCT 1 0,18 m 0,18 m 0,24 m 0,00761 m³ 5,40 kg
PCS 1 0,47 m 0,21 m 0,27 m 0,02637 m³ 6,20 kg
INNER 1 0,46 m 0,21 m 0,27 m 0,02608 m³ 6,20 kg
MASTER 4 0,48 m 0,57 m 0,43 m 0,11765 m³ 24,80 kg
PALLET 96 - - - - -
LX503MK2/B - Black version


Black version
EAN: 5414795025271
LX503MK2/W - White version


White version
EAN: 5414795025264

LX503/B - 3-way active speaker system 5" 2x35 watt - black

LX503/B Discontinued

3-way active speaker system 5" 2x35 watt - black
EAN: 5414795013926
replaced by LX503MK2/B