hartke HD25 schematics

[benito_red]

hello to everybody,

I'm looking for HARTKE HD25 bass amp schematics.
Does anybody has a copy of it?
Thanks in advance...

[Enzo]

I don't have that, but it can't be very complex, it is a low power amp with an 8" speaker.

Is there a problem you need to solve? You can look inside, and I would be very surpised if the power amp was not an IC, like a TDA2050 or a LM3886 or some other similar item. And the preamp will likely be op amp based. But a view inside will tell you that.

[benito_red]

I own a brand new HD25 and so far it works correctly. I just wonder how is the circuits schematic diagram. I already took a look inside and saw that power section is made with a power IC but I do not remember what (now I am far from home and I cannot verify) but it is none of the followings: TDA2030 TDA2050 or a LM3886. The pre section is SDA with just one IC , likely a 4 sections OP amp. And as it is SDA circuit I think the day it could fail will not be possible to repair it.