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STAX SRM-400S Headphone Amplifier
Introducing the STAX SRM-400S, the latest semiconductor driver unit succeeding the SRM-353X. This advanced model features STAX's custom-made low noise DUAL FET on the first and last stages, ensuring exceptional audio quality. Each FET's characteristics are meticulously measured and selected, mirroring the precision found in the high-end SRM-700S model.
Key Features:
- Advanced FET Configuration: Utilizes custom-made low noise DUAL FETs on both the first and last stages for superior sound performance.
- Enhanced Power Efficiency: Features a newly designed power transformer with low voltage winding, improving power efficiency and sound quality compared to previous models like the SRM-353X.
- Robust Chassis Design: New, more rigid chassis with a hybrid structure of non-magnetic aluminum, reducing environmental noise and vibrations.
- Versatile Inputs: Equipped with RCA and XLR mutual exclusion inputs, along with a custom concentric dual volume knob and RCA parallel output functions, consistent with STAX's traditional driver units.
- Environmentally Conscious Components: All electronic components are carefully selected to ensure environmental friendliness, enhancing both sound quality and performance.
- DC Amplifier Configuration: Maintains the complete DC amplifier configuration, eliminating coupling condensers, a hallmark of STAX's traditional design.
The SRM-400S delivers high-resolution sound and dynamic low-range reproduction, with improved sound balance across all frequencies compared to its predecessor. This model is perfect for pairing with the advanced Lambda series and is an excellent upgrade from the entry-level SRS-3100, catering to both beginners and intermediate users within STAX's renewed driver unit lineup.
Specifications:
- Type: All-stage FET configuration DC amplification driver unit
- Frequency Response: DC - 90kHz (with one SR-L500 MK2)
- Gain: 60dB
- Harmonic Distortion: 0.01% or less (1kHz/100Vrms output)
- Input Impedance: 50kΩ (RCA), 50kΩ x 2 (XLR)
- Maximum Output Voltage: 400Vrms (1kHz)
- Bias Voltage: DC 580V
- Operating Temperature/Humidity: 0 to 35°C / less than 90% (non-condensing)
- Input Terminals: RCA x 1, XLR x 1 (mutual exclusion input)
- Output: RCA parallel output terminal
- Power Consumption: 30W
- Dimensions: 195 (W) x 102 (H) x 376 (D) mm (including protrusions)
- Weight: 3.4kg
Discover the future of audio with the STAX SRM-400S, delivering impeccable sound quality and advanced features designed to enhance your listening experience.
The manufacturer does not recommend using other electrostatic headphones with STAX amplifiers.
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