Mzb1 20/630 Mzb1 20/160, 20/250, 20/400 Mzb2 20/400, 20/630 Mzb2 (3x1,65) 20/630 Mzb2 20/630 (1000) Minibox 20/630 (Mzb2 (2,54x1,98) 20/630) Mzb2 "b" 20/630 Mzb2 - single transformer variant Mzb2 - double transformer variant