FIR M5 Review: First Class FIR Audio M5 Review: First Class Everyone, it is time for us to take a trip down the rabbit hole. FIR Audio is a new IEM brand founded in 2018. T...
ADVANCED M5-1D Review: Big leap 3 ADVANCED M5-1D: Big leap Advanced (ADV) is back at it again with the premium line up, the M5 series. Currently two models have been officially rele...
Advanced (ADV. Sound) plans to release M5-6D Quick Two Cents Advanced (ADV. Sound) has been working on its M5 series for a while now and already released M5-1D (review link) and ...