Stax SR-Omega: Open-back design. Transducer principle: electrostatic, push-pull. Frequency range: 6Hz–41kHz (no tolerance specified). Sensitivity: 99dB/100V RMS input (1kHz). Maximum SPL: 120dB at 400Hz.
Weight: 1.3lb (580gm, less cable).
Serial number of unit reviewed: 00133.
Price: $3000, headphones only; $4000 with SRM-T1 tube amplifier; $4500 with SRM-T1S balanced-input tube amplifier (1995).
SRM-T1S direct-drive amplifier: Frequency response: DC–44kHz, –1.5dB. Gain: 60dB. THD: 0.02% at 100V RMS output. Maximum output voltage: 300V RMS.…