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providing a warm
Replaceable Op-Amps: Features DIP8 sockets for Op-Amp rolling
High-Definition Bluetooth 5
Intuitive App Control: Manage your entire music library
Fosi Audio IM4 feature_variable_output providing a warmFosi Audio IM4: Expansive Sound in a Compact Design The Fosi Audio IM4 is a revolutionary In Ear Monitor (IEM) that brings the natural, airy acoustics of open back headphones into a portable in ear design. Engineered for critical listening and audio enthusiasts, the IM4 delivers an exceptionally wide soundstage and precise imaging. Key Features & Acoustic Design Innovative Open Back Architecture: Unlike typical sealed IEMs, the IM4 features a unique
