1. The most popular of the 3 is the 4004, the 2400 is a very good radial tracking turntable and in my opinion underrated.
2. The cartridges for 4004 and 2400 are inter changeable, its the MMC 20 series The 5500 has a MMC 1-5,
Location: Mexico city
Printing machine technician
Restored various 1960-70 items
Rock and Roll music
Collecting Vinyl
Restored Jukebox Wurlitzer 1050