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Old 12-07-2021, 12:31 PM
here2stay here2stay is offline
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Quote:
Originally Posted by lakesailor View Post
The Levinson 43X series amps were all based on the Proceed HPA 2/3/5 series amps. When Madrigal shut down the Proceed HT division the HPA series of amps all underwent very minor revisions and became the Levinson 43X series. These amps had very tight operating tolerances and generally require servicing from a knowledgeable tech on a somewhat regular basis. They are excellent amps and are very dynamic. If you do buy the 433 and run into an issue I have the HPA schematics that I could send to you. From my experience this series of amps has no cap problems.
Hello Lakesailor or anyone else that may have the Proceed HPA schematics/repair manual. Can you please provide those to me. I recently acquired an HPA 3 with the center channel out. Also, I was hoping to check offset and bias.

Thank you!!
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