Just finished a sound installation of the LokSound 58741 board into a KATO ES44AC locomotive and thought I could share a picture and video of the result. Trainboard member bkbloss originally created a thread on this decoder here, but I just wanted to keep this installation picture and video on their own. The speaker is a simple 8x12 Soberton (SP-1208), built into a 3D printed enclosure of my own design. The speaker itself is sealed to the enclosure with Lepage Fun Tak sticky putty. Note that there is NO frame or shell modification at all. The ESU sound project used in the Kato is S0523-LS5H0DCC-Diesel-GE-12-GEVO-LATE-EXH-V2-R2.esux, horn 6 (K5-HL) and bell 2 (GE M 6731022A Steel Bell 030) I initially tried it with a CUI 9x16, but the shell pinches down to just about 9.2mm at the top end of the shell, meaning that the 9mm + 0.5mm sidewalls of the enclosure would not fit. Still, this enclosure for the 8x12 has a total volume of about 700 mm³ (actual volume, minus the speaker). With the current installation, the rear headlight will not light up. At a later date I will add a tiny SMD LED to the back of the speaker enclosure, connected to the LokSound board with magnet wire. I don't have any fancy audio equipment, so this was filmed on a Nikon D500 with its onboard microphone. For comparison, I also filmed a Rapido Trains 8-40CM with its factory sound installation (also a LokSound installation) Enjoy!