Stax SRM-700T


  • 6SN7 realizes a highly transparent sound
  • Non-inductive winding resistors with the least inductance
  • High-definition film capacitors
  • Hand selected matching FET
  • Volume control is EMI shielded
  • Bypass volume control switching





The newly designed SRM-700T is a hybrid electrostatic headphone driver. Inspired by the flagship model SRM-T8000, the 700T uses solid-state FET as a driver stage and vacuum tube as the output stage.

High output GT tube “6SN7”

“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.

Low-noise dual FET

The first stage is a custom-made low-noise dual FET while the second stage is clear and high slew-rate vacuum tube 6SN7. The tube output offers warm and spacious music reproduction. Non-inductive winding resistor with least inductance made by VISHAY Co. Strictly selected pair-matched special FET. High-definition film capacitor made by German WIMA is used.

Rear Panel

RCA and XLR inputs are switchable. RCA input supports parallel out. Level control switch that can bypass the volume of the unit. The newly developed large-sized aluminum insulator combined with new vibration-proof material and high frictional coefficient (grip power) have been employed.
Specifications STAX SRM-700T
Type FET input + vacuum tube output hybrid DC amplification driver unit
Vacuum tube 6SN7 x2
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 240 W x 103 H x 393 D mm (maximum protruding portion included)
Weight 5.7kg
Similar Product SRM-500T
Weight 2 kg
Dimensions 25 × 25 × 25 cm


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.

Select the fields to be shown. Others will be hidden. Drag and drop to rearrange the order.
  • Image
  • SKU
  • Rating
  • Price
  • Stock
  • Availability
  • Add to cart
  • Description
  • Content
  • Weight
  • Dimensions
  • Additional information
  • Attributes
  • Custom attributes
  • Custom fields