ZÖLLNER Makrofons are diaphragm sound transmitters operating on compressed air.
For decades ZÖLLNER Makrofons have proven their reliability worldwide.

STRONG POINTS

• high quality material and workmanship
• made in Germany
• corrosion-resistant
• made entirely of fire resistant material:
  • housing - brass
  • horn – steel (or acc. to customer’s request copper)
• simple, but well-engineered construction
• durable
• virtually maintenance-free
• low life cycle costs
• economic air consumption
• temperature range: -25 °C to +70 °C
• broad frequency spectrum with many strong overtones
• according to UIC 644 standard frequencies 370 +/- 10 Hz and 660 Hz +/- 15 Hz
• sound pressure level 120 -125 dB(A) at a 5 m range in front of the horn
• other frequencies available, such as 220, 311, 440 or 808 Hz for other applications
• accessories:
  • flange heating
  • protective grid or net valves
  • air filter
• assistance with soundproofing
  solutions