1595 - COMPLETE Rolling Thunder Receiver with Subwoofer Kit

How does it work?
The speakers in most HO scale locomotives will only reproduce sounds
above approximately 600 hertz. The human ear can detect sounds between
20 to 20,000 hertz, and we can feel sounds at even lower frequencies.
Many of the sounds real trains make are in the lower frequencies that
models cannot reproduce. This is due to the tiny speakers which cannot
move enough air. To overcome this shortcoming, Paragon3 incorporates a
cutting edge radio transmitter system we call Rolling Thunder^TM
that sends the low frequency sounds to a specially designed receiver
and subwoofer under your layout. Since low frequency sounds have a
longer wavelength, it is difficult for the human ear to detect the
direction of the source. The result is that while the locomotive moves
around the layout, you can hear the high frequency sounds coming from
the locomotive, and the low frequency sounds from the subwoofer-- all
perfectly synchronized to the motion of the locomotive and the puffing
of the smoke, and your ears will perceive the full array of sound as
coming from the model!

On a large
layout, where a locomotive can be very far from the subwoofer, the Rolling Thunder^TMsystem detects the distance and fades out the subwoofer until
the locomotive gets close again, or, if another locomotive is in
range, it will connect automatically to the subwoofer and begin
playing its sounds at levels appropriate to its distance to the
subwoofer.

The system
consists of the Paragon3 sound system in the locomotive, with its
integral Rolling Thunder^TM
transmitter, a Rolling Thunder^TM
receiver box under the layout, and a powered subwoofer.