Kit: MX644D; 2x SugarStrand25X09X06; SACC16 + SuperCap17000uF
We quite like this model from Heljan, though the provision for a speaker is rather limited. We choose to get creative and go
with a pair of low-profile SugarStrands instead...
No complex re-wiring to do... simply plug in the MX644D 21pin decoder and all the lighting should work as-is. We add wires to
the decoder for the stay-alive (SuperCap17000uF via SACC16 PCB), and split off the speaker wires in parallel to the pair of
SugarStrands. 2 of these 8 ohm speakers means 4 ohm in total, which is fine with the MX644D.
The speakers sit vertically, one either side... they have to be the low-profile 6mm version to do this, but together they woik