STAX SR-X9000 Electrostatic Earspeaker (Flagship)
#2 in Audiophile Headphones · Rated 4.7
Flagship electrostatic earspeaker with exceptional scale
The SR-X9000 represents STAX’s current flagship electrostatic earspeaker, delivering an ultra-wide, holographic soundstage with very fast transient response and extreme detail. Its fixed-electrode design and robust enclosure aim to minimize resonance and maximize micro-detail retrieval, all powered by specialized STAX amplification. Electrostatic headphones like the X9000 are prized by absolute-accuracy seekers and studio-grade listeners who value speed and natural dynamics. They are not portable and demand a purpose-built setup with the compatible STAX driver electronics.
Features
- Omega-class electrostatic earspeaker design
- Large, precise cylindrical drivers
- Optimized enclosure for reduced resonances
- Detachable cables and balanced connections
- High-res response with ultra-wide bandwidth
Pros
- Exceptional detail and airiness
- Very accurate imaging and timbre
- Outstanding stage size for an earspeaker
Cons
- Requires dedicated electrostatic amplifier
- Very high price and niche market
- Compared to dynamic headphones, wiring and setup can be bulky