Inside Pioneer amps

[Martin]

From my old Pioneer SPEC series preamp and amp:

SPEC-1

SPEC-2:

Martin

 

[TheBatsEar]

From my old Pioneer SPEC series preamp and amp:

SPEC-1
View attachment 253858View attachment 253859

SPEC-2:
View attachment 253860View attachment 253861

Martin

Surprisingly clean, considering that we have seen so many rats nests so far.

 

[mhardy6647]

The SPEC preamp is particularly impressive in its layout and construction values, I'd opine.
Definitely "ahead of its time" since it dates back to ca. '76 (if not slightly earlier -- sorry I am too lazy to look it up).