I’ve just finished fitting an MRC S2/S4 sound decoder to my one-and-only Atlas Alco switcher. Overall I am quite satisfied with the sound, although the horn is a bit quiet. The fitting of a better speaker may address this.
I also used the opportunity to test the new track layout at the west end of Sweethome, that has been progressing over the past few months.
Jon - how great that is! Is that chug-a-lug idle sound what the S’s sounded like? Have never heard one in real life.
I have a S-1 that I want to DCC and sound. I am new into this and wonder, is that MRC decoder used for both the sound and the running and lights, or is that a separate decoder?
Neither have I, although I have a few videos with alco sounds on and the decoder sounds good enough to pass muster, IMO.
The decoder is almost a drop in fit. You have to file away a little portion of the weight and solder on the 4 pick-up wires, but you do get both sound and power in the one decoder. Just as well, as there’s no room left inside for much else.
jake9,
No, that is not what S-units sound like. S-units have either a 539 (S-1 & S-3) or 539T (S-2 & S-4) prime mover. The “T” is for turbo, and indicates 1000Hp instead of 660Hp. Both kinds of 539’s are straight 6 diesels, and have cylinder heads as big around as a dinner plate.
What MRC did was record a 244 prime mover and program that into their S-unit board. These diesels are found in original RS-2’s & RS-3’s, FA’s/FB’s, and PA’s/PB’s, and were available in V-12 or V-16 versions (1600Hp or 2000Hp). Naturally, a V-12 does not sound like a straight 6.
Yes, the MRC decoder does have headlight controls on the board, and both operates the loco and makes their RS-3-like sounds. Most sound decoders these days do it all with the exception of Digitrax (they use plug-ins) and old DSX-type decoders from Soundtraxx.
loathar,
Nobody ever said that all MRC boards are failures. What we have been saying is that they have around a 50% failure rate for DCC, far higher than any other manufacturer of decoders. That makes them J-U-N-K. They do, apparently, work more reliably on DC since you don’t have to program them, and that’s where most failures occur.