Hi!
Im building some api 312 clones using fabio baumans pcb:s. My first attempt at diy, so far im having loads of fun!
Im using sowter in transformer and 4804 out, and melcor opamps.
I finished one channel today and tried it. Everything seems to work fine except for some groundnoise (i havent mounted them in an enclosure yet, so im hoping that will clear up once i rack them). The noise seemed to dissapear almost completely if i touched the in transformer or my star grounding point (i connected all the separate grounds to a screw).
But!
The sound seemed to lack alot of bass and lower mids. Kinda thin, but with good treble and uppermids. Another guy i know of had the same problem with the sowter transformer and solved it by connecting the yellow and gray wires ( he says he probably connected the windings in series, just like the oep alternative for baumans apis are wired).
I hope all of this makes sense to you, as english is not my native language.
Anyway,
is this a good idea, or is there any other way i could solve my problem? Are the colorcodings on the pcb wrong for the sowter, or have i missed something maybe?
thanks!
/Jonas
Im building some api 312 clones using fabio baumans pcb:s. My first attempt at diy, so far im having loads of fun!
Im using sowter in transformer and 4804 out, and melcor opamps.
I finished one channel today and tried it. Everything seems to work fine except for some groundnoise (i havent mounted them in an enclosure yet, so im hoping that will clear up once i rack them). The noise seemed to dissapear almost completely if i touched the in transformer or my star grounding point (i connected all the separate grounds to a screw).
But!
The sound seemed to lack alot of bass and lower mids. Kinda thin, but with good treble and uppermids. Another guy i know of had the same problem with the sowter transformer and solved it by connecting the yellow and gray wires ( he says he probably connected the windings in series, just like the oep alternative for baumans apis are wired).
I hope all of this makes sense to you, as english is not my native language.
Anyway,
is this a good idea, or is there any other way i could solve my problem? Are the colorcodings on the pcb wrong for the sowter, or have i missed something maybe?
thanks!
/Jonas