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Preamplifier who is it?
Preamplifier who is it?
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Old 12th April 2015, 07:59 AM   #1
mprivitera1 is online now mprivitera1  Italy
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Default Preamplifier who is it?

Hello to all,
browsing the net I found this preamp, mount 20 transistors per channel Ohh !! Ohh !! Ohh !! . The seller does not know the technical features, it seems that both the pre / clone of marantz ma9s2.In network I have not found any documentation for it .Who of you know this board preamp ?? the electrical characteristics?
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Old 12th April 2015, 08:41 AM   #2
jan.didden is offline jan.didden  Europe
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Looks to me like a phono pre, with the // transistors and some hi-Q caps probably for RIAA. No idea of the brand though.

Jan
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Old 12th April 2015, 10:19 AM   #3
mprivitera1 is online now mprivitera1  Italy
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Originally Posted by jan.didden View Post
Looks to me like a phono pre, with the // transistors and some hi-Q caps probably for RIAA. No idea of the brand though.

Jan
..it is shown as line preamplifier and works with dual voltage 24V . It is a really strange one PCB , has a total of 40 transistors for a preamplifier
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Old 12th April 2015, 10:49 AM   #4
peranders is offline peranders  Sweden
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Preamplifier who is it?
Does the pcb have some more marking? It looks some chinese/ebay stuff.
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Old 12th April 2015, 10:58 AM   #5
mprivitera1 is online now mprivitera1  Italy
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Originally Posted by peranders View Post
Does the pcb have some more marking? It looks some chinese/ebay stuff.
no, the seller tells me does not have a name the PCB . He tells me to have bought in Germany a few years ago ... Anyway, I watched the service manual marantz ma9s2 , actually the preamp section is very similar to this PCB . My doubt is , can a transistor preamp with 40 ..... who know how it really is intriguing .... I am tempted ...
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