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2004Monitors forum

Distinguishing features and component differences between PRO 1 and PRO 2 monitors

22 years old. Gear and prices may have changed since.

What the thread found

  • The PRO 1 and PRO 2 monitors share the same housing, monitor tube, functions, and faceplate design.
  • The high voltage power supply differs between models, with the PRO 2 featuring a more modern version.
  • PRO 1 uses an external fuse while PRO 2 uses an internal thermal fuse.
  • PRO 1 side rails are smooth while PRO 2 side rails have ripples.
  • PRO 1 heat sink has 10 ribs while PRO 2 heat sink has two sets of 5 ribs plus a box structure.
  • PRO 1 has a fuse receptacle on the left rail near the monitor plug while PRO 2 has no external fuse.
  • PRO 1 faceplate is secured with 3 screws while PRO 2 uses 2 screws despite having 3 holes marked on the faceplate sticker.
  • PRO 1 units were produced in limited quantity with approximately 50 units made total.
  • PRO 1 monitors work only with PRO 1 level equipment while PRO 2 monitors are compatible with both PRO 1 and PRO 2 level equipment.
  • Because internal components can be mixed between the two models during repair or upgrade, serial number verification is necessary to confirm the actual specification level of a given monitor.

Depends on

  • This information is from 2004 and applies to equipment from that era.
  • The claim about production quantities is presented as 'supposedly' and may not be precisely verified.
  • Components between models are interchangeable, so visual inspection alone may not definitively identify a unit's specification level without consulting the serial number.
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