Details Driver unit for electrostatic earspeakers The Stax SRM-400S Earspeaker Driver Unit is a mid-range, solid-state amplifier designed to power Stax's high-end, electrostatic headphones. It boasts several exciting improvements over previous models and delivers exceptional sound quality for audiophiles seeking to elevate their listening experience with Stax's electrostatic headphones. Enhanced sound quality The SRM-400S utilizes a newly designed power transformer and all-stage FET amplification, resulting in lower distortion and a wider frequency response. This translates to a more accurate and detailed listening experience. Improved build quality The unit features a sturdier aluminum chassis that minimizes vibrations and external noise interference, contributing to a cleaner audio output. Versatility It offers both RCA and XLR inputs, making it compatible with a variety of audio sources. Features Type: All-stage FET configuration DC amplification driver unit Frequency response: DC – 90kHz (with one SR-L500 MK2) Gain: 60dB Harmonic distortion: 0.01% or less (1kHz/100Vrms output) Input impedance: 50kΩ (RCA), 50kΩx 2 (XLR) Maximum output voltage: 400Vrms (1kHz) Bias voltage: DC 580V Operating temperature / humidity: 0 to 35 degrees C / less than 90% (non condensing) Input terminal: RCA x 1, XLR x 1(mutual exclusion input) Output: RCA parallel output terminal Power consumption: 30W Dimension: 195 (W) x 102 (H) x 376 (D) mm (maximum protruding portion included) Weight: 3.4kg
