Photo: courtesy Markku (Finland)

The PM-74 and PM-64 were also part of the Quarter-A line of amplifiers.  The PM-74 and PM-64 retained the look of the PM-84, but had respectively lower power ratings.  Of course, the performed in Class A mode up to one quarter of the rated output, before reverting to Class A/B. 

The PM-74 was tested by Stereo Review in the  August 1988 issue.  Click on the thumbnail images below to see the fullsize page of this test.