The SRM-T8000 sets a new standard for STAX's amplifiers. It boasts a more open, dynamic sound than the SRM-727II or SRM-007tII when paired with the power hungry SR-009 and SR-007MK2. The look and feel is classic STAX. For those looking to keep with STAX branded amplifiers only, there is no better choice. Description SRM-T8000 is Stax’s latest flagship electrostatic headphone amplifier utilizing hybrid technology. It employs two 6922 in the input stage, driving a Class-A solid-state output stage. The vacuum tubes isolated in a separate section made of vibration-proof damper and shield cover to eliminate vibration and noise. The high-capacity large toroidal transformers and selected high-quality parts allow the highest refinement in sound. Specifications ● Frequency response: 1Hz – 115kHz / when used with one earspeaker● Gain: 60dB (x1000)● Harmonic distortion: 0.01% /1kHz● Input terminal: LINE1/LINE2 (RCA), LINE3 (XLR), LINE4 (optional input for future)● Rated input level: 100mV (at 100V output)● Input impedance: 50kΩ (RCA) / 50kΩx 2 (XLR)● Maximum output voltage: 470Vrms (1330V p-p)● Mains voltage: AC120V/60Hz● Power consumption: 95W● Operating temperature: 0 to 35 degrees C (less than 90% humidity, non condensing)● Dimension: 320 (W) x103 (H) x395 (D) mm (protruding portion included)● Weight: 7.3kg