The Dallee sound units reproduce sounds taken from real engines and stored on a chip within the unit for great fidelity. One or more speakers (8 Ohm) are needed and we have a choice of sizes - the bigger the better! On board power of 9 to 24 volts is required (PP3 battery as a minimum) and triggering the bells, whistle/horn can be by radio control (they interface with RCS systems), by reed switches or DCC.
STEAM SOUND
Chuff can be synchronised by opto-coupler or motor voltage. Choice of whistle types and two generic engine types. All have randomly sounding air pumps, blower & safety valve with triggerable whistle & bell sounds.
Some units can also be supplied without the air pump sound.
DIESEL SOUND
Engine speed, brake release and notch controlled from motor voltage.
Random air relief valve. Choice of engine sound and horn types.
Triggerable horn & bell.
| Steam Sound | Diesel Sound | |||||||||
| Whistle Type |
Heavy chuff loco Double air pump |
Light chuff loco Single air pump |
Horn Type |
ALCO Road Engine |
ALCO Switcher |
Baldwin |
EMD e.g. GP7, GP9 |
Fairbanks Morse |
GE e.g. U boats |
Railbus |
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Reading G-3 Multi-chime |
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Reading 1-10 Single-chime |
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PRR T-1 Multi-chime |
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PRR K-4 Multi-chime |
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PRR Banshee Single-chime |
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SP GS-4 Multi-chime |
Nathan K5L | |||||||||
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NYC Multi-chime |
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NKP Berkshire Multi-chime |
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C & O Multi-chime |
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Switcher Single chime |
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Sound units for British Class 66 are also available.
DSU+ above no
Sound Unit size 1"x2.75"x1" high, includes cables. 8 ohm speaker required.
DOPTO Opto coupler for synchronising steam sound to wheels
Speakers - see price list.