You are not likely to find any of these parts in commercially built HiFi. It is not that manufacturers don't know the difference they can make, just that these parts are too expensive after going through the markup process from manufacturer to consumer.

Any of these parts effect the kind of changes that bring the non-audiophile members of the family into your room with comments like "What d'ya do to make it sound so good?" No straining to hear the differences because they aren't subtle.

This category of products will continue to expand as parts are tested and evaluated for performance. Nothing offered here will be subject to the law of diminishing returns and everything will provide a big step up in high fidelity when compared to standard parts. All have been or are in use in our system.