Anterior Horn Muffler Kit

Product Ref: Anterior Horn Muffler Kit

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Product Description

Anterior Horn Muffler Kit

Trent Instruments manufacture, calibrate and supply a complete Series of Mufflers to fit Air warning horns.

These have a unique and bespoke engineered design which has been developed in conjunction with train manufacturers. to give a clear audible warning while performing this with a Sound Pressure Level band which can ensure testing is safely performed in depots and Train Maintenance Facilities.


  •  Horn SPL reduction of 20-40dB with a good, audible, sound
  •  Primarily designed for horns with Fundamental Frequencies of 311Hz and 370Hz
  •  Rigorous Evaluation and Analytical testing has been performed for research and development
  •  Montage of pockets in a patterned design provides Acoustically Absorbent properties
  •  Allows safe activation of warning horns in enclosed environments
  •  Suitable for a compact envelope
  •  For best results use as a pair for each cab end
  •  Sturdy, Robust and Rigid design suitable for use in Train Maintenance Facilities
  •  Primary purpose is to assist with testing and verification
  •  Designed to fit on numerous Nathan Airchime Horn designs, including: CS, KSJ and KS Horns
  •  Protective case included
  •  Fully Compatible with our Warning Horn Control Panel and all systems that Trent Instruments provide
  •  Designed and developed in the UK to ISO 9001:2015 Standards
  •  Drawings available on request






SPL Reduction




To Suit Horn





Ø210 x 190















Ø270 x 240












Please contact our sales team for further information.