ho scale gp7 or sw9 with dual mode sound

[h2w]

what companies make an ho scale gp7 or sw9 ( Boston &Maine preferably) that has sound that can be activated on dc.
thank you
mark

[Spikre]

 
  not sure about sound as Stealth units are preferred here.
   SW9 -- Proto
   GP7 -- Atlas,Proto,Genesis,Bachman.
    do You want B&M Blue Bird or Maroon ?
  GP7s should be available in both paint colors.
  not sure about the SW9 ?
  You may want to also consider:
  NW2 - Kato,BLI
  SW1 - Walthers 90s,and recent new version.
  SW7 - BLI
  SW1200 - Proto
  if B&M had those models
  or even an Alco S-2 - Atlas,Bachman.
     maybe  someday  the Alco S-5 will be made in Plastic ??
       Spikre