Model Engine Sound Effects

Technobots now stock three versions of our very popular engine sound effect units. The basic version is a single voice which can be purchased with either a Diesel, Petrol or Steam sound. The Combo version has all three sounds built into the same unit which is ideal if you wish to be able to use the sound unit in a different model later using a different engine sound. Finally and new for 2012 is the Programmable Engine Sound System that takes the realistic Diesel and Petrol sounds from the earlier models but gives the user the option to customise the sounds to better suit their own personal requirements as well as a number of other features such as twin throttle, horn and volume control. All of our engine sound units use some rather clever electronics as a digital amplifier that offers a very loud sound output that can easily drive our 10W speakers. This means we can keep the overall size of our sound units very small and very battery efficient, the amplifier runs so cool it does not even need a heatsink. This technology does mean that you cannot feed the engine sound unit into a third party mixer or amplifier.

All models are supplied ready assembled, tested and housed in a flanged case for easy mounting in your model. The Five models were all designed by Alan Bond of the Solent Radio Control Model Boat Club (SRCMBC). Naturally the sound units have found their way into all sorts of models, not just boats, we have customers using them in model tanks, RC cars (rock crawlers) and trucks as well.

The user options vary depending on the model purchased but all offer an option to select the number of cylinders. In all cases the engine sound varies smoothly and proportionally with the throttle demand in both forward and reverse. The petrol and diesel engine variants have an idling time-out of around 20 seconds after which they run down and stop. Opening the throttle again causes the engine to re-start following a short "cranking" sound. The steam engine variant starts and stops immediately on throttle opening or closure.

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