STAX SRM-700T

STAX SRM-700T: Vacuum Tube Output Driver for Electrostatic Ear Speakers

The STAX SRM-700T is a premium vacuum tube output driver specifically designed for electrostatic ear speakers. It combines advanced tube technology with modern semiconductor engineering to deliver an unparalleled audio experience.

In the second stage of the vacuum tube system, the "6SN7" GT tube is utilized, while the first stage features custom low-noise dual FETs. The 6SN7 tube, considered an original form of the 6FQ7, provides robust and dynamic performance. The hybrid driver uses high-quality, non-inductive wire-wound resistors from VISHAY Co. as the load resistor, ensuring optimal sound quality.

The clear and highly dynamic sound signature of the vacuum tube has been further refined to achieve a warm and spacious audio presentation, enhancing the depth and richness of the soundscape.

Technical Specifications of the STAX SRM-700T

• Type: Hybrid direct-coupled amplifier with FET input and vacuum tube output
• Vacuum Tube: 6SN7
• Frequency Response: DC - 100 kHz (with an SR-009S)
• Gain: 60 dB
• Harmonic Distortion: 0.01% or less (at 1 kHz/100 Vrms output)
• Input Impedance: 50 kΩ (RCA), 50 kΩ x 2 (XLR)
• Maximum Output Voltage: 340 Vrms (at 1 kHz)
• Bias Voltage: PRO 580 V
• Operating Temperature/Humidity: 0 to 35 °C / less than 90% (non-condensing)
• Inputs: RCA x 1, XLR x 1
• Output: RCA parallel output
• Power Consumption: 54 W
• Dimensions: 240 mm (W) x 103 mm (H) x 393 mm (D) (including maximum protruding parts)
• Weight: 5.7 kg

The SRM-700T is an ideal choice for audiophiles seeking the classic and rich sound of vacuum tube amplification paired with modern engineering for an unmatched listening experience.