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Stax SRM-500T Hybrid Energiser

£1,395.00

Driver unit for Stax Electrostatic Earspeakers

The STAX SRM-500T is a hybrid electrostatic energiser designed to bring out the speed, detail, and musical warmth of STAX headphones. Replacing the SRM-006tS, it combines a low-noise dual FET input stage with 6FQ7/6CG7 vacuum tube output for a clean, dynamic, and spacious sound. Using high-grade components including Vishay Co. non-inductive winding resistors, it delivers improved clarity while preserving a smooth, natural tube character - a strong performance-to-value choice in the STAX lineup.

A high-end amp that’s designed to deliver the best possible sound quality from Stax electrostatic headphones.

Category Headphone Amplifier
Country Japan
Manufacturer Stax

Driver unit for Stax Electrostatic Earspeakers

The STAX SRM-500T is a hybrid electrostatic energiser designed to bring out the speed, detail, and musical warmth of STAX headphones. Replacing the SRM-006tS, it combines a low-noise dual FET input stage with 6FQ7/6CG7 vacuum tube output for a clean, dynamic, and spacious sound. Using high-grade components including Vishay Co. non-inductive winding resistors, it delivers improved clarity while preserving a smooth, natural tube character - a strong performance-to-value choice in the STAX lineup.

A high-end amp that’s designed to deliver the best possible sound quality from Stax electrostatic headphones.

Category Headphone Amplifier
Country Japan
Manufacturer Stax

 

  • Type: FET input + vacuum tube output hybrid DC amplification driver unit 

    Vacuum tube: 6SN7

    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: 340Vrms (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: 54W

    Dimension: 240W x 103H x 393D mm (maximum protruding portion included)

    Weight: 5.7kg

    • Free Delivery within Mainland UK.

    • 30-Day Money-back Guarantee

    • Returns Policy

STAX SRM-700T Vacuum Energizer

Stax introduces a new model SRM-500T to replace its successor of SRM-006tS. The SRM-500T utilises a pair of 6FQ7/6CG7 vacuum tubes as the output, driven by custom-made low noise dual FET. Stax pride itself in offering a great value electrostatic driver at the best possible performance.

"6SN7" GT tube has been adopted in the second stage of the vacuum tube system, while custom-made low-noise dual FET is employed in the first stage. The vacuum tube 6SN7 that has become the original form of 6FQ7 realizes simple and powerful performance. The hybrid type driver has adopted the high-quality non-inductive winding resistor from VISHAY Co. as a load resistance. The clear and high slew-rate vacuum tube sound has been improved further to polish up warm and spacious reproduction.