Have some time to start a 2nd amp case for my nearfield/desktop rig.
I'll be inserting an Aiyima A04 this time with integrated dial mechanism. It will only be 3.5" tall and same 7.5" diameter as Ill machine the TPA3251 board to insert sideways. I fly-cut the baseplate this time as well...
These amps don't even need fans, so only adding a center and 3 lateral air ports for convection flow...
I'll be inserting an Aiyima A04 this time with integrated dial mechanism. It will only be 3.5" tall and same 7.5" diameter as Ill machine the TPA3251 board to insert sideways. I fly-cut the baseplate this time as well...
These amps don't even need fans, so only adding a center and 3 lateral air ports for convection flow...
Usually they should have the exact same pin layout. But you can even check it with a multimeter, measuring resistance between pins in different volume settings.
Great....And what good memories, this lathe and this metal milling machine...good cast iron equipment!🙂
Ok. I figured out the correct wiring. The A04's Vol. pot PCB is not like the A07's that I wired up. I'll get a diagram up soon if anyone else cares to upgrade their volume pot. I tested everything and I'm glad I got this little jewel up and running again on my desktop rig. Just a gorgeous sound.