Beethoven: the Five Piano Concertos
Serkin, Ozawa, BSO (CD)

This cycle was recorded in the early 80's in Boston, which is quite late in Serkin's lengthy and illustrious career considering he also recorded individual piano concertos with the likes of Ormandy, Bernstein and Mehta.

The Telarc recording is beautiful, capturing the performances with an honest purity.

My favorite part of this recording is the last page of the liner notes where there's a very detailed list of all of the recording equipment used. The list includes (but not limited to) B&K Model 4004S, Schoeps Colettes, ADS Model 1530, 1290 CS2000, etc...