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Levinson Reliability???
Fellas,
I have a question for you all. I have an opportunity to pick up a Levinson 433 that would meet my needs very well. It is from an authorized dealer, full warranty, and has functioned flawlessly since 2008 as a demo. Perfect condition. My question is. I know the 3xx Levinson amps had cap problems, but are the 4xx amps reliable? It seems that some have failed, but I have not heard of any 433 issues, as these were designed after the 431, 432, and 436. Thanks for the info. Tim
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For I am not ashamed, for I know [in] Whom I have believed and am persuaded that He is able... |
#2
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Myles Astor, Senior Editor., Positive-Feedback.com, Goldmund Telos 300 amplifier, Goldmund Mimesis 37S Nextgen preamplifier, Doshi EVO phono and tape stages; Zellaton Plural EVO speakers; VPI Vanquish Turntable, VPI 12-inch Fat Boy gimbal arm and SAT LM-12 arm; Lyra Atlas SL Lambda, Fuuga mk.2, vdh Colibri Master Signature cartridges; Technics 1506/FM heads; Various cables including TA, MIT, Kubala-Sosna, Skogrand, Viero L3 Equilibrio speaker cables, Audience, SRA Craz 3 rack, Isobase and OHIO Class XL+2.1 platforms. |
#3
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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.
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I just sold the HPA5 to upgrade, so that may rule out the 433. Back to the Drawing Board!
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For I am not ashamed, for I know [in] Whom I have believed and am persuaded that He is able... |
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Lakesailor,
If you would be so kind to share your schematics for the HPA, I would be highly appreciative. This is purely precautionary as my HPA 3 has performed flawlessly but eventually, the caps will need attention. TIA... Sonicbath. |
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Hello Lakesailor,
I own two Proceed HPA 3 (original owner), and have a problem with one of the amps. In my country, the Harman Kardon dealership has changed three times in the past five years. As you can imagine, the actual dealer does´nt even know the Proceed brand. I have a local technician that repairs amps but the schematics are needed. I would like to know if I can get this information from you. Thank you, eadomin |
#7
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#8
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Lakesailor,
I also would be very appreciative to have the HPA schematics. I currently have an HPA3 here on my bench that I am repairing and service information would most certainly be welcome. Thank you in advance for any help you may be able to provide. Ron |
#9
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Lakesailor,
I would really appreciate if you could send me the schematics for the HPA. I own a HPA5 that is defective on 2 channels and i really like the sound of the amp as the 3 other channels work flawlessly. Regards Christian |
#10
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I am curious (if you know) how the Proceed BPA 2 fits into that. From what I have found, which is next to nothing, it is basically the same as an HPA 2 with about 1/2 the power (125 wpc). I sold my ML 331 and bought the BPA-2, they do sound very similar. I also read the BPA-2 is Class A for the 1st few watts, which is more than I ask of it in it's current system. I usually listen at around 60 to 70 dB, which is probably closer to 0.1 watt. The ML had a very slight hum, and I was worried I wouldn't be able to afford to repair it if it ever had a serious problem. I bought the ML for $1,800 sold it for $2,300 and bought the Proceed for $700. So that worked out well, and I don't have to worry about having so much (to me) tied up in the one piece. I do miss how cool the ML looked though... Last edited by brad1138; 07-24-2019 at 11:17 AM. |
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