Seperate Power Supply and Preamps


Several of the top end tube preamps like Hovland, Joule Electra, Herron, and Lamm have no seperate power supply. Others like First Sound Presence, Atma-sphere, Cary, have seperated out the power supplys with some of their models. What are the advantages of this sonically or is this just a physical limitation problem with the manufacturer?
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Showing 1 response by albertporter

Several possible reasons. The first six that come to mind are:

Size limitations.
Isolation from proximity of high voltages.
Isolation from magnetic fields and transformers.
Splitting the heat sources into two or more chassis's.
Dividing the weight into more manageable packages.
Ability to apply different isolation techniques to each piece.