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Bachmann OO Class 70 diesel with DCC Sound

Example 1: Zimo MX644D 21pin MTC; Zimo Dumbo LS40X20X09-2W dual speaker

Photos courtesy of Richard Copeland

Example 2: Zimo MX644D with 2x Zimo LS18X13X13-1W Dumbo speakers

Freightliner 70001 gets the DCC Sound treatment today...

MX644D 21pin sound decoder is easy enough. The narrow body means we are limited on speaker choice, so opt for a pair of Zimo Dumbo LS18X13X13-1Ws in the provided recess, which fit comfortably and connected in parallel sound really great. We attempt to include the sample 470uF/25V capacitor for stay-alive, but this proves just too big preventing the body from going back on. The loco runs well anyway, so the cap is removed.

Back together, a very simple install, and looking good exiting the tunnel!

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Please note that these guides are provided as useful resources for you, as-is. YouChoos cannot be held responsible for errors in the information, or for any damage caused to your models or equipment if you choose to follow any of the steps detailed here.

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