Preface: Since there is an abundance of well-written pieces on entry-level Stax already and the SR-L300 doesn't represent a significant deviation from the lambda sound signature, these notes are primarily concerned with the incremental changes in this iteration. If you're unfamiliar with the lambda sound, I'd refer you to @JustinBieber's SR-202 review on this page for a good idea of what to expect: https://www.head-fi.org/showcase/stax-sr-202.13727/reviews. I've been meaning to check out the advanced lambdas given their departure from ye olde lambda...