Spec drill · Driver types
FH19 vs IER-M9
A side-by-side readout for driver types.
FiiO · FH19
1DD + 8BA + 1BC Hybrid
Sony · IER-M9
5 Balanced Armature
Context
Understanding driver types
Driver types is one of several spec fields the Mars Score uses to rank products in this category. Compare the two values shown above against the category-wide range to understand whether the gap is meaningful or marginal, and weigh it against the rest of the spec sheet before drawing a conclusion. A single spec rarely decides a purchase on its own.
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Other specs on this comparison
See the full In-Ear Monitors category for all products ranked by Mars Score.