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Sound Modules

Our sound modules create a very realistic motor sound that changes with variation of speed, acceleration, and coasting. The sound adjusts in every drive situation immediately without delay or audible transition.

The sound modules SM3 and SM7 can be combined with all customary esc's, as long as no special break function exists (meaning the position of the joystick always corresponds to the speed). For Servonaut speed controllers (exception: E20/E22) the modules provide a special interface and for this reason a larger range of functions. As suitable accessory we are offering the tone controller SM-EQ for the new sound modules SM3, SMB, and SM7. You can adjust treble and bass perfectly with the SM-EQ.

Chart - range of functions speed controller / sound modules (PDF)

SM3

The new mini sound module SM3 is the successor of the popular SMT and only half the size of it! The SM3 combines traditional Servonaut motor sound from SMT and SMX. In total, there are five motor types availabe.

SM7

The bigger sound module SM7 provides more adjustment possibilities, a higher output power, and dynamic turbocharger-sound (disengageable). We are offering five brand new mixed motor sounds in top quality. Our SM7 is Multiswitch/Multibus compatible. You can get more information about our Servonaut-Multibus in our forum!

SMB

Our sound module SMB was developed in cooperation with Damitz Modelltechnik especially for excavators. This module is not directly operated by speed signals, but by mixers in the radio. A suitable radio with extensive mix functions is required.

SM+

In case you already have an SMX, SMT, or SM7, you can play back extra sounds, e.g. a particular siren. Basic computer and Windows skills are necessary.