Marcos Costa is the public editorial name of a LineaSonora contributor specialized in digital audio, streamers, DACs, music servers, home networks, and high-resolution playback.
His perspective starts from the overlap between technology, usability, and critical listening. His articles focus on how a complete digital chain is organized: source, network, server or local library, playback software, digital-to-analog conversion, volume control, hi-fi integration, and everyday user experience.
At LineaSonora he writes about streamers, DACs, Roon, Qobuz, Tidal, local libraries, NAS, USB, Ethernet, network audio, and practical criteria for building a stable and easy-to-use digital system. His goal is to help readers separate real setup problems from commercial promises, and to distinguish documented improvements from technical hypotheses and perceived listening differences.
He also develops guides on high-resolution playback, digital formats, metadata management, library synchronization, connectivity, and maintenance of domestic digital systems. His texts avoid treating digital audio as magic: whenever a claim depends on measurements, technical documentation, or specific operating conditions, it should be presented with caution and context.
At LineaSonora he usually signs as M. Costa and covers the territory where computing, networking, digital-to-analog conversion, and high-level domestic listening meet. His approach is direct and practical: less technology romanticism, more clarity about what each component does and which problem it solves.
His editorial voice helps readers understand modern digital audio without falling into automatic skepticism or blind faith in accessories, formats, or marketing promises.
