Preamplifier who is it?

[mprivitera1]

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?

 

[jan.didden]

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

 

[mprivitera1]

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

 

[peranders]

Does the pcb have some more marking? It looks some chinese/ebay stuff.

 

[mprivitera1]

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 ...