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.

●Type: All-stage FET configuration DC amplification driver unit
●Frequency response: DC - 100kHz (with one SR-009S)
●Gain: 60dB
●Harmonic distortion: 0.01% or less (1kHz/100Vrms output)
●Input impedance: 50kΩ (RCA), 50kΩx 2 (XLR)
●Maximum output voltage: 450Vrms (1kHz)
●Bias voltage: PRO 580V
●Operating temperature / humidity: 0 to 35 degrees C / less than 90% (non condensing)
●Input terminal: RCA x 1, XLR x 1
●Output: RCA parallel output terminal
●Power consumption: 46W
●Dimension: 240W x 103H x 393D mm (maximum protruding portion included) ●Weight: 6.3kg