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Capacitor question
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Yes. I have adjusted the exhaust chuff all the way up. If the chuff was as loud as the air pump can be, I'd have no complaints. Actually, I think I've found a solution. I talked with Soundtraxx today. It's their brand decoder. They said with the Shay unit low sound volume is a common complaint since the speaker is only 3/4" in diameter. Yes, everything behind the speaker is ait tight. Yes, I have holes drilled in the coal load, as well as a spot ground out of the under side of the coal load, so the sound can escape that way, too. Actually, there's no difference in sound with the coal load in or out, so I think I did good there. No, nothing's touching the speaker. If you look at the three truck Spectrum Shay, the speaker mounts in the bunker, not the tender. The bunker IS the speaker enclosure. It's right small. They also said I could use a capacitor with a uF rating all the way up to 1000, and that would help with the bass response. The unit comes with a 50uF capacitor. I found a speaker that is oval. It is 1" by .563". I have a capacitor, so we'll see what that does. I don't know about an amplifier. I ain't sure I could squeeze anything else in that bunker.
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