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Old 2nd February 2012, 06:14 PM   #1
toufu is offline toufu  United States
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Default Marantz HDAM

Hi, is anyone familiar with the Marantz HDAM or HDAM SA circuits? Do the transistors need to be matched? And are the covers really necessary?

Thanks.
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Old 2nd February 2012, 06:27 PM   #2
Jebem is offline Jebem  Portugal
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You may find some useful information on this site. Just search for HDAM. For example, see if the following posts help You:
Marantz HDAM tweak
Marantz HDAM Preamp DIY Kit on Ebay
X-HDAM Opamp from newbee
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One of my SE 211 tube amps: http://sites.google.com/site/sunajeb...ificador-211se
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