SPB 1 Engine Sound Unit

There are two files, one for the large gas engine and one for the large diesel sound. Each file is .WAV format, 15 seconds long and 430K bytes in size. You hear the engine go from idle RPM, then reved to full RPM and back to idle. If you would like one (or both) of these samples, E-mail me at eric@eaelec.com.

EA Electronics in collaboration with our UK partners, Paddle Wheels 2000 are pleased to announce the Sound Platform Board (SPB) 1 engine sound generator. The SPB series is designed around a microcontroller, which allows different sound effects to be built using the same hardware, only the software in the microcontroller changes.

The SPB 1 comes in two versions; the SPB 1G, a generator-only version (for those models which already have an on-board sound system) and the complete system version, the SPB 1C which includes a 200 milliwatt amplifier and 4" heavy duty speaker. There are 4 different gas & diesel engine sounds (plus a starter sound) programmed into the SPB 1. The user can configure the unit to generate any one of the four sounds.

Unlike some other engine sound units which are connected to the motor, the SPB plugs directly into your receiver. Your electronic speed control (ESC) is then plugged into to the SPB in a daisy chain manner, so that the signal from the receiver passes through the SPB and then goes on to the speed control. Other features:

• Mute on loss of signal (LOS) function. If the signal from the receiver is lost, the SPB will stop producing sound. This will save battery power if you are having transmitter problems. 
• Momentum; large engines cannot change RPM instantaneously and this feature simulates this characteristic by delaying any sudden RPM changes. This feature can be disabled if not needed.
• Volume adjust.
• Maximum RPM adjust.
• One year limited warranty.
• Dimensions: 2"(51 mm) long, 1.5"(38 mm) wide, 0.6"(15 mm) high

Specifications (complete system with speaker):

• Operating voltage range: 7 to 15 volts DC.
• Recommended battery voltage: 8.4 to 12 volts.
• Audio amplifier output power: 200 milliwatts RMS into 8 ohms @ 12 volts.
• Current Drain at full audio power: 190 milliamps
• Speaker dimensions: 4" diameter ( 5" diagonal ), 1.25" deep, 170 grams
• Speaker electrical specs: 8 ohms, 3 watts 

4 inch speaker included with the SPB-1C

Specifications (generator only):

• Operating voltage range: 5 to 15 volts DC.
• Recommended battery voltage: 6 to 12 volts.
• Current drain: 18 milliamps