Flat-panel Speakers

DPS 26 - 100 V

Art. No. 50280

26 x 26 cm dipole flat-panel loudspeaker made of corrosion resistant aluminum with weatherproof equipment for outdoor use. The DPS 26 is a passive speaker without power supply, adapted for all applications of speech reproduction (e.g. announcements at railway stations, etc.). The optimized directivity pattern and focused sound radiation ensure perfect speech intelligibility while minimizing the disturbance of nearby areas (noise pollution). The clear design line with a square body, simple and variable mounting possibilities as well as thoughtful power taps on the 100 V transformer for easier adjustment complete the advantages.Connection (100 V) + / - Red / White 6 W White / Yellow 3 W Yellow / Black 1.5 W Red / Yellow 1 W White / Black 0.5 W Red / Black 0.3 W

DPS 40 EN - 100 V

Art. No. 50291

The DPS 40 EN dipole flat-panel loudspeaker has been specifically developed to deal with particularly critical acoustic characteristics in rooms with high reverberation levels. In contrast to the similar model DPS 40 F - 100 V, the loudspeakers of DPS 40 EN are arranged as a symmetrical array. The sound is sharply focused both in horizontal and vertical directions therefore. Because this loudspeaker is normally installed on a higher place (bottom edge about 3 m), there is a passive time delay element integrated to optimize the radiating direction at an angle of -10°. DPS 40 EN is a passive loudspeaker, so it will not require any power supply. Railway station PA speakers A key objective of public address systems in railway stations is to ensure that every message relating to railway operation and in emergencies is clearly audible to all travellers at the target location in the station. DIN EN 60268-16 sets ambitious standards for speech intelligibility because the acoustic environment on railway platforms is a difficult one. Trains arriving and leaving generate very loud ambient noises and require the loudspeakers to have a correspondingly high loudness level Announcements on adjacent platforms make other announcements unintelligible unless the sound is properly and effectively restricted to the required target area Sound reverberating from the sound-reflecting ceilings and walls in enclosed station buildings generates interference noise that makes the announcement hard to understand. The passive train station loudspeakers made by VISATON will, however, allow the required speech intelligibility to be achieved, despite the difficult surroundings. These speakers are dipole flat-panel speakers, and provide the required high levels of sound pressure while focussing the sound they produce more accurately than classic speaker systems. A dipole speaker works by creating air movement (as sound pressure waves) directly from the front and back surfaces of the driver, while the amount of sound emitted to the sides, up and down is much reduced. An arrangement of several loudspeakers in line or in a single plane results in an even more closely focussed sound image. By combining these two principles, VISATON has achieved a targeted improvement in the polar characteristics of loudspeaker systems. Thanks to this principle, the platform in front of and behind the loudspeaker is addressed and the adjacent platforms hardly hear any of it. The sound also hardly reaches the ceiling and floor so interfering reverberations that would reduce speech intelligibility are reduced.Connection (100 V) + / - Red / White 40 W White / Yellow 20 W Yellow / Black 10 W Red / Yellow 6.9 W White / Black 3.4 W

DPS 40 F - 100 V (RAL 9006)

Art. No. 50294

The DPS 40 F - 100 V dipole flat-panel loudspeaker has been developed and optimised specifically for applications in the open-air with limited adjoining reflecting surfaces (such as ceilings). It focuses the sound to a great extent in a horizontal direction, so neighbours or adjacent station platforms only receive much reduced signals than would be the case with classic horn speakers. Sound field simulations coupled with measurements under real-life field conditions demonstrate that there is a difference in the level of interference noise to the sides of the platform of 6 to 8 dB in favour of dipole flat-panel speakers. At the same time, their efficiency is considerably higher, which means that typical horn speakers would require eight times the amplifier output to achieve the same sound pressure on a railway platform.

Versions: Models with one side closed e.g. for use at the ends of platforms.

  • DPS 40 F-GR - 100 V (closed at the right side)

  • DPS 40 F-GL - 100 V (closed at the left side)


Railway station PA speakers

A key objective of public address systems in railway stations is to ensure that every message relating to railway operation and in emergencies is clearly audible to all travellers at the target location in the station. DIN EN 60268-16 sets ambitious standards for speech intelligibility because the acoustic environment on railway platforms is a difficult one.

  • Trains arriving and leaving generate very loud ambient noises and require the loudspeakers to have a correspondingly high loudness level
  • Announcements on adjacent platforms make other announcements unintelligible unless the sound is properly and effectively restricted to the required target area
  • Sound reverberating from the sound-reflecting ceilings and walls in enclosed station buildings generates interference noise that makes the announcement hard to understand.

The passive train station loudspeakers made by VISATON will, however, allow the required speech intelligibility to be achieved, despite the difficult surroundings. These speakers are dipole flat-panel speakers, and provide the required high levels of sound pressure while focussing the sound they produce more accurately than classic speaker systems.

A dipole speaker works by creating air movement (as sound pressurewaves) directly from the front and back surfaces of the driver, while the amount of sound emitted to the sides, up and down is much reduced. An arrangement of several loudspeakers in line or in a single plane results in an even more closely focussed sound image. By combining these two principles, VISATON has achieved a targeted improvement in the polar characteristics of loudspeaker systems.

Thanks to this principle, the platform in front of and behind the loudspeaker is addressed and the adjacent platforms hardly hear any of it. The sound also hardly reaches the ceiling and floor so interfering reverberations that would reduce speech intelligibility are reduced.

Connection (100 V)

+ / -  

Red / Black

10 W

Yellow / Black

6 W

White / Black

3 W