The ’directional arrow’ is the direction of text on an SR fuse and is consistent from one fuse generation to the next. Reading left to right direction or signal starts at the beginning of the writing. What is unknown and what cannot be known without a test is the optimal direction in a specific component that will sound best. For this you really need to listen whether you have arrows or text on a fuse. This is because electricity does not *flow* like water but rather energy propagates abov/around the filiment/wire. When our straightforward listen in both directions per individual fuse guidelines are followed with any fuse, optimal performance is achived. Optimal directionality is discovered not for the fuse, but for each component, something that cannot be known until the experiment is performed. Bottomline if you want best performance in your audio system you need to work at it, and this is true for everything, not only fuses.
Perhaps this will help:
Yours in music,
Ted Denney III
Lead Designer/CEO Synergistic Research Inc.