Servonaut SM7 Electronic Engine Sound Generator for Truck Models

Servonaut SM7 Engine Sound Module for 1/14 Truck Models

The SM7 is Servonaut’s latest high-fidelity electronic engine sound generator, designed specifically for 1/14 scale truck models. As the successor to the well-established SMX, the SM7 offers enhanced sound dynamics, expanded vehicle profiles, and seamless compatibility with Servonaut speed controllers and lighting modules.

Key Features:

• Authentic Sound Profiles:
  Includes 5 engine sounds:

  • Mercedes Actros V6

  • Scania V8

  • MAN TGA Inline

  • DAF Inline 6

  • Scania Inline 6

• Additional Sound Effects:

  • Ignition sequence

  • Five unique horns

  • Turbocharger

  • Compressed-air brake

  • Gear shift simulation

  • Reversing beeper

  • Warning beeper

• Individual Sound Adjustment:
  Volume of turbo, compressed-air, gear shift, and beeper can be fine-tuned via the Servonaut CARD accessory.

• Control Options:

  • Ignition and horn via receiver channel or multiswitch input

  • Compatible with Servonaut K-series (K15/30/40/60) and M-/S-series controllers (M20+, M24, S20/S22)

  • Reduced functionality with third-party ESCs

• Installation & Operation:

  • Operates directly from main battery (7.2V–12V), no secondary power required

  • Compatible with loudspeakers rated 4Ω or higher

  • Integrated mini potentiometer for onboard volume adjustment

  • Compact form factor for easy integration: 65 × 35 × 12 mm

Compatibility Notes:

• If not using a Servonaut ESC or if combining with an AIR4, a Servo Y-cable (SYBlock) is required.

• Exception: When using the M24 with AIR4, no Y-cable is needed.

This module is a must-have for builders seeking hyper-realistic truck audio with modular expandability across Servonaut's control and lighting ecosystem. Pair it with a Servonaut speaker and matching ESC for best performance.