ThieAudio with its Legacy 5 saw us debut our detailed frequency response measurements for headphone and earphone reviews, and the brand clearly liked it enough to offer two very different IEMs as a follow-up. Being Linsoul’s house-brand, ThieAudio has hand-selected personnel for design, engineering, and manufacturing of its products, including for the identification of the best driver setups and tuning, typically in the form of hybrid drivers involving a combination of dynamic (DD) and balanced armature (BA) drivers. This hybrid setup scales quite well and is being used for the Legacy 9 with 1 DD and 8 BA drivers.
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