Downloads Header
Computer Interface Software Packages
For use with the 2K2, P and PB Series of BigSound™ systems and SM18 Sound and Motor decoders.
Notice: Update Pending
Package Version Date Download
Full Installation: Program version 1.3.1, ROM version R20 21 24 July 2023
Upgrade: Program only, no ROM files. 1.3.0 10 June 2023
Upgrade: ROM Files only. R20 10 June 2023
 USB Device Drivers
Pre-Installation Executeable 2.12.24 11 April 2017
Standard zip archive 2.12.24 11 April 2017
 Boot Code Firmware Updates
P5 Systems B12042008 28 June 2023
 Revision History
Release Notes 20 10 June 2023
 Configuration Files
CVP Recommended P8 Configuration for USA Diesel Drop In -- 25 January 2011
P14 Recommended Configuration -- 14 May 2015
Latest BigSoundTM ROM files
ZIP archive -- extract and place in your ROMFiles directory.
Need a ZIP Utility? Try 7-Zip.
Name Description Version Download Listen
 DIESEL (AMERICAN)
ALCO American Locomotive Company Diesel R21
DASH 8 GE Dash 8 Diesel R21
DASH 9 GE Dash 9 Diesel R21
E8 EMD E8 Diesel, dual engine start-up/shut-down R21
F3 EMD F series, single chime R21
F7 EMD F series, multi-chime R21
GENESIS GE Amtrak Genesis, any phase R21
GP7 EMD GP7/9 with Hancock Horn R21
GP9 EMD GP7/9 Diesel, multi-chime R21
GP30 EMD GP30 Turbocharged Diesel R21
GP38 EMD GP38 Diesel, Roots Blower R21
GP40 EMD GP40 Diesel R21
HH660 Alco HH660 R21
NW2 EMD NW2, single chime R21
PA Alco PA (244 Prime Mover) R21
PLYM Plymouth Switcher Diesel Switcher R21
RS3 Alco RS3 (244 Prime Mover) R21
RSD Alco RSD (251-C Prime Mover) R21
SD40 EMD SD40 (645E3 Prime Mover) R21
SD45 EMD SD45 Diesel R21
SD70 EMD SD70MAC (710 Prime Mover) R21
SW1500 EMD SW1500 Swithcer R21
U25B GE U25B, 'uboat' class diesel R21
45TWhicomb Whitcomb 45 Ton Switcher R21
 EUROPEAN
ABe44 European Electric R12
CLASS 66 British Rail Class 66 (EMD 710 Prime Mover) R21
CROC RhB Ge 6/6 Crocodile R12
DB218 DB/BR Class 218 R12
DBTEE DB Class VT 11.5, TEE (Trans Europe Express) R12
ERBUS European Railbus R12
ERACK Electric Rack Locomotive R12
EURO European Steam R21
GEI German E44 R12
GEII Ge4/4 II -- Swiss MOB R12
GEIII Maienfeld 641 R12
G45 RhB G4/5 Steam R21
HARZ Harz (HSB) German Railway R21
SRACK Swiss Rack R12
 GAS, ELECTRIC & EFFECTS
BCE Box Cab Elecric R12
CABLE San Francisco Cable Car R12
CITY Urban Streetcar R12
DESIRE New Orleans Streetcar R12
DOODLE Doodlebug Gas/Electric Interurban R12
GG1 PRR GG1 Electric R12
GOOSE RGS Gallopin' Goose R12
RDC Rail Diesel Car R12
RTRY Rotary Snow Plow R12
SFX Special Effects R12
SPEEDR Speeder R12
TROL Trolley R12
 STEAM (AMERICAN)
1361 Pennsy K4 (Pacific) #1361 R21
440 4-4-0 'American' R21
ACS1 American Classic Steam 1 R21
ACS2 American Classic Steam 2 R21
BIGBOY Union Pacific 4-8-8-4 Big Boy R21
CabF Southern Pacific 4-8-8-2 Cab Forward R21
C16 Consolidation R21
C21 Consolidation R21
DAYH Daylight R21
Dock 0-6-0 Dockside Switcher R21
DRGW Denver & Rio Grande Western R21
EBT East Broad Top R21
FRIS Frisco #1522 R21
GTW Grand Trunk Western (Canadian National) R21
HDSON 4-6-4 J1e Hudson R21
HUD49 4-6-4 J1e Hudson with Southern Pacific Daylight Horn R21
K463 K-27 #463 R21
K473 K-28 #473 R21
K480 K-36 #480 R21
K487 K-36 #487 R21
MALLET 2-8-8-2 Mallet R21
MIKADO 2-8-2 Mikado R21
MOGUL Older 2-6-0 Mogul (Bachmann) R21
NORTH 4-8-4 Northern class R21
PORT Porter R22
PRR Pennsylvania Railroad R21
RGS Rio Grande Southern R21
SPAC Southern Pacific #1218 R21
SRRL Sandy River & Rangeley Lakes Forney R21
UINT Uintah R21
V&T Virginia & Truckee INYO #22 R21
 STEAM (GEARED & SPECIAL)
CLMX Climax R21
GYPSY Gypsy R21
HEIS Heisler R21
PSHAY Shay, 38 Ton R21
SHAY Shay, 36 Ton R21
3SHAY Shay, 3 Truck 55 Ton R21
WEST Westside Shay R21

Valid XHTML 1.1 Valid CSS