Point to Point vs Circuit Board

Atma Sphere makes fine, well designed products. I'm not slagging them off, but 'properly' has nothing to do with it.

There are vast differences between controlled impedances on a circuit board and a hand wired prototype. SS gear can shrink by 50% between prototype and release changing noise radiation and absorption. A PCB has maximum track separation of 1 thickness between sides, contains ground planes and power distribution, all of which can affect the sound. PCB materials can affect the sound. Maintaining PCB tolerances in a handwired prototype is next to impossible. Prototypes types of any ilk are seldom evaluated in the retail packaging. Parts used in the prototype are sometimes superseded / improved necessitating a few steps back or sideways...

Simple circuits of tube amps invite point to point wiring, but for a solid state amp you would have wiring everywhere along with interference caused by all the wiring going everywhere, the routing would become too complex for sure.

@speakermaster thank you. That answers what I was curious about.

Simple circuits of tube amps invite point to point wiring, but for a solid state amp you would have wiring everywhere along with interference caused by all the wiring going everywhere, the routing would become too complex for sure.

Incorrect. A transistor has 3 pins, a tube typically has 6 to 9. A tube amp invites P2P wiring as the mechanics of an exposed tube in a socket on a chassis provide a layout.

SS products could be similarly designed with sockets on a backplane, but costs would be prohibitive. P2P is impractical for many of todays electronics with panel gewgaws and remote control.

PWB, first described in 1903, and transistors became popular about the same time in the 1960’s.

Point to point wiring is absolutely necessary for designers who cannot design a decent circuit board.  I was lucky.  My designer was a NASA rocket scientist who helped with both the moon landing (Apollo 5) and Voyager missions.  His circuit boards did not have "Thin" Crap.  Too many individual wires means too much noise.