INSTALL GUIDE AVAILABLE IN THE GUIDES SECTION: https://www.scalesoundsystems.com/guides
 
These are speaker system upgrades for Scale Trains Fox Valley Models Class J N&W 4-8-4 locomotives. Both the boiler-mounted and tender-mounted speakers are fuller, smoother and more detailed than stock.
 
Understand that the current whistle used on the factory LokSound decoders has too much lower-midrange (and likely some unfiltered bass-information) that causes severe distortion in any speaker. This speaker upgrade sounds much better than the stock speakers, but the whistle sound-file is still problematic. Hopefully ESU will address this with a better-processed whistle!
 
TWO systems are available depending on which decoder brand you use.
 
If using LokSound or any other 4Ω-compatible decoder, the "4Ω-Boiler+Tender-Set" includes the boiler-mounted SXTH-JBB1 speaker and the FFRC-AGBB tender-mounted speaker. This system is continuous-rated at 3W.
 
If using Soundtraxx, TCS WOW or any other 8Ω-minimum decoder, the "5.3Ω-Boiler+Tender-Set" includes the boiler-mounted SCTH-JBB1 speaker and two FFRC-2025 tender-mounted speakers. This system is continuous-rated at 4.5W.
 
The 2-speaker system running at 4Ω is better with LokSound, while the 3-speaker system running at 5.3Ω is safer with Soundtraxx and TCS.
 
NOTE: since Soundtraxx and TCS both recommend an 8Ω-minimum for their decoders, it is advisable that you not run either at full-volume. This has nothing to do with power-handling; it's current-draw strain on the power-amps.
 
These speakers are sold as a set only. The boiler-mounted speaker is not available separately as it is designed to work with the Force speakers in the tender, not the stock tender speakers