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The Gold Standard in Listening: STAX SR-009 Electrostatic Headphone Review

Build this 8 Transistor Stereo Amplifier

Immerse yourself in the pinnacle of auditory experience with the STAX SR-009 Electrostatic Headphones, a testament to the brand's uncompromising dedication to sound purity. Ideal for audiophiles seeking to bring the concert hall to their ears, the SR-009 offers unparalleled clarity and depth. Coupled with the exclusive SRM-252S driver unit (amplifier), it promises an extraordinary listening journey.

An Exclusive Match: The SRM-252S Driver Unit

The STAX SR-009 finds its soulmate in the SRM-252S, a driver unit engineered specifically for STAX ear speakers with PRO-bias 5 pins. With its direct connection capabilities to a range of audio devices, the SRM-252S stands as a paragon of seamless audio transmission and steadfast reliability.

Design and Sound Quality: The Essence of Purity

STAX SRM-353X takes up just a little more space than my SRM-252S ...

The SRM-252S revels in a simple yet effective design, leveraging cutting-edge high-voltage transistors and low-noise FETs. It’s the laudable output stage configuration that fosters robust driving performance and delivers that elusive smooth sound texture.

Class-A Amplification: The Heartbeat of Harmonics

Staying true to a pure audio pathway, the SRM-252S boasts a class-A amplification across all stages, shunning coupling capacitors to unveil every nuance within the music. This approach is not just about preserving sound quality—it's about elevating it to new heights.

Specifications That Speak Volumes

Voltage regulator - Wikipedia

The SRM-252S is not just an amplifier; it's an embodiment of excellence, flaunting impressive specifications that testify to its capabilities:

  • Operation Type: All-stage semiconductors, class A operation with pure balance DC amplifier configuration
  • Frequency Response: DC to 35,000Hz
  • Harmonic Distortion: Less than 0.01% at 1kHz
  • Max Output Voltage: 280V r.m.s. at 1kHz
  • Construction: Compact, with aluminum extrusion chassis for heat dissipation

Practicality and Versatility

The SRM-252S isn't just high performance but also conveniences with features like the parallel output terminal. Whether you're ensconced in your personal listening space or want to share the experience with the room, flexibility is at your fingertips.

The Traveling Audiophile's Companion

For those who seek the zenith of audio indulgence on their journeys, the STAX SR-009 and SRM-252S ensemble provides a transportive musical experience. Melding seamlessly with the tranquility of luxury travel, the precision of this audio setup ensures that whether you're in a bustling city or a secluded hideaway, you can carry concert-level soundscapes with you.

The eloquence of a meticulously arranged suite mirrors the precision of these headphones. Just as a grand hotel room or a luxury resort offers you a tailored sojourn, the STAX headphones grant you a bespoke aural voyage—a lavish, uncompromised soundtrack to your travels.

New York

Tucson

San Francisco

Fort Lauderdale

New Orleans

Los Angeles