ESSENTIAL RC PRODUCT TEST: Sense Hobby ESS-AIR Engine and Gun Sound System

Add realistic sound to your scale models by dropping in this easy to install sound system. Available from RC Castle at http://www.rc-castle.com/index.php?ro... 1. Light weight and compact size easy to install. 2. Support firmware updates and function upgrades. 3. Uses advanced DNS/DCR algorithm to reproduce the sound of real engines. 4. Support AUX channel that can simulate a variety of sounds such as gunfire. 5. Support RC PLUS to realize functional setting and sound purchasing from sound stores. 6. Support 2 sets of engine sounds which enable fast switching between engine sounds. Amplifier Input Voltage: 5V - 26V Speaker Impedance: 4 ohm AMP Output Power: 15W/12V ( Under 4 ohm ) Number of Audio Channel: 2 Ouput Is Short-Circuit , Overload & Thermally Protected. Speaker Diameter: 54mm Weight: 60g Nominal Impedance: 4ohm Input Power: Normal 5W , Max 10W Resonance Frequency: 312Hz