Designer 20
| Title | Function | Dates_produced |
|---|
 | X1000 | Amplifier, Power | 1998-2005 |
 | X1000.5 | Amplifier, Power | 2006-200? |
 | X150 | Amplifier, Power | 1999-199? |
 | X150.5 | Amplifier, Power | 2003-200? |
 | X250 | Amplifier, Power | 2001-2004 |
 | X250.5 | Amplifier, Power | 2004-200? |
 | X350 | Amplifier, Power | 1998-2004 |
 | X350.5 | Amplifier, Power | 2004-200? |
 | X600 | Amplifier, Power | 1998-2004 |
 | X600.5 | Amplifier, Power | 2005-200? |
 | XA100 | Amplifier, Power | 2004-2007 |
 | XA100.5 | Amplifier, Power | 2007-200? |
 | XA160 | Amplifier, Power | 2003-2007 |
 | XA160.5 | Amplifier, Power | 2007-20?? |
 | XA200 | Amplifier, Power | 2002-2007 |
 | XA200.5 | Amplifier, Power | 2007-20?? |
| XA30 | Amplifier, Power | 2006-200? |
 | XA30.5 | Amplifier, Power | 2007-200? |
 | XA60 | Amplifier, Power | 2006-2007 |
 | XA60.5 | Amplifier, Power | 2007-200? |
