Stax SRM-700S Semiconductor Driver Unit

The Stax SRM-700S represents a significant advancement in electrostatic amplification, featuring a fully semiconductor architecture with proprietary low-noise dual FET circuitry in its input stage. This model marks a historic milestone by introducing J-FET technology to Stax's driver unit lineup, leveraging its superior low-noise characteristics and robust current delivery through an emitter follower configuration. This topology maximizes the sonic capabilities of compatible earspeakers while maintaining exceptional clarity even with demanding, high-frequency-rich source material. The result is meticulous musical reproduction that preserves subtle details across the entire frequency spectrum.