This introductory essay of Multi-Media Romanticisms explores the central concepts that emerge from the individual essays contained in the volume. These concepts include: the multiplicity of Romantic-era media technologies and theories; the conceptual models of network, assemblage, and ecology used by contemporary scholars to map the relations between media; Romantic valorizations of noise as a benign register of materiality, singularity, and finitude; and the turn to questions of affect and emotion as a way to describe the position of the subject within extended networks of mediation. These conceptual clusters seem to us the most knotty and generative issues within Romantic-era media studies today.