STAX SRS-X1 -270S Earspeakers System - includes SR-X1 headphones and SRM-270S amplifier. Units are in excellent condition with original box, packing and accessories. System sells as new for $980.00

SR-X1 Earspeakers:

• Type : Push-pull electrostatic circular speaker, rear-opening enclosure

• Unit Shape : Medium-sized circular

• Fixed electrodes: High-precision etched electrodes

• Playback frequency range: 7-41,000Hz

• Capacitance: 110pF (including attached cable)

• Impedance: 145kQ (at 10kHz/including 2.5m attached cable)

• Sound pressure sensitivity: 101dB/100Vr.m.s. input/1kHz

• Bias voltage: 580V DC

• Cable conductor: OFC

• Cable shape : Parallel 6-core, wide low capacitance cable, 2.5m

• Earpads: Genuine sheepskin leather (skin contact area), artificial leather (attachment area)

• Weight: 234g (main unit only)

Warranty: 1-year U.S. limited warranty

SRM-270S Driver Unit

● Frequency Response: DC to 35,000Hz/+0, -3dB

● Harmonic Distortion: 0.01% or less/1kHz 100V r.m.s.

● Amplification: 58dB (800 times)

● Maximum Output Voltage: 280V r.m.s./1kHz

● Input Impedance: 25kΩ

● Input Terminals: RCA x 1

● Output Terminals: Parallel Out x 1

● Bias voltage: 580V, DC

● Power Supply: AC adaptor included

● External Dimensions:132(W)×38(H)×153(D)mm (excluding protruding parts)

● Weight: 540g