I installed an ESU Loksound Select Micro sound decoder in Atlas N scale SP SD9. Two SBS4DCC "Sugar Cube" speakers were also used with a double sound chamber. To make a little more room for the decoder board, I used a Dremel tool just a little on the inside of the shell in the cab and short hood area where the decoder sits. I am very pleased with the sound, lighting and operation from this decoder! Decoder installed in front of chassis with speakers in rear.... Forward light "sandwich" board scratch-built from styrene. I'm calling it a sandwich board because it sandwiches the LED's in-place and the boards support post is also sandwiched between frame halves.... Rear headlight LED positioned in notch in sound chamber.... Lighting effects with shell re-installed. The top light is set to gyralight. To reduce the gyralight effect showing thru the numberboards, I installed a small light block on the sandwich board that fits between the clear numberboard inserts and then painted the numberboard inserts all black except for the very bottom, so the headlight would only shine through. It doesn't completely stop the gyralight effect from showing through, but almost...
Thank for the compliments, guys! I do have to keep the wheels clean or I will get some occasional cutting-out. The wheels on this unit are pretty brassy too, so they tend to get dirty a little quicker.
