This one has been brewing for a while now but since I wanted to build a nice balanced amp it moved up in line.    Basic setup is the same as the old Dynalo but now with Super Symmetry input, higher rail voltages and naturally a bit more power.  Input stage changed to THAT340 which is a quad bipolar transistor array with matched NPN and PNP pairs.  It is cheap and easy to source so no jfet drama.  The other transistors are new as well and the pinout is different to reflect that.    Here is a lo