The Theory: We all like the sound to come from the front of the engine, and we
all like the most bass possible. I can put a much larger speaker in the tender
(better bass). Bass sounds are less directional than high frequencies. I
thought: What if I put a smaller speaker in the smoke box and a larger speaker
in the tender? Will it seem like the sounds are coming from the engine?
The results: Nope. After I squished everything into the boiler and put it all
together, I thought there was no sound at all coming from the locomotive - I
assumed I had broken a wire or something catastrophic. Wrong. I took the boiler
off the chassis, and if I put my ear right next to the speaker that normally
lives in the boiler, I could hear it doing its thing. The larger speaker in the
tender was so much more powerful that it sounds just as if there is only one
speaker.
BTW - the speakers are the same impedance. I had them hooked up in parallel.
Maybe (1) if in series they would be better matched (not likely), or (2) I
could attenuate the tender speaker. Not this round, I need to get the
locomotive back in service.
The good news is now I can put a much larger stay-alive capacitor on the Zimo
decoder in the locomotive, and I only need two wires between locomotive and
tender.
-Michael Eldridge
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