Note: Transit on these headphones generally ranges 2-3 weeks from order placement.

Flagship-Grade Electrostatic Performance

The ES-2a, a tribute to the legendary Omega headphone, is designed to provide the ultimate listening experience, closely resembling the original. As the successor to the ES-la, the ES-2a improves on all aspects, including driver technology, housing, tuning, and much more. ES Lab is proud to introduce the ES-2a to both existing ES-1a users and those striving for the best electrostatic headphones on the market.

Large 90mm electrostatic driver with ultra-thin diaphragm

The ES-2a features a 90mm diameter electrostatic driver made of high-grade, ultra-thin Mylar film that is much thinner than a human hair. The diaphragm is driven by a pair of OFC electrodes which is only 0.3mm thick. This design provides powerful propulsion to the diaphragm, delivering an exceptional soundstage and detail retrieval. Each driver is assembled in a clean room environment with hours of inspection work and the strictest contamination control.

Embossed dust screen for distortion control

For the first time in the industry, ES Lab adopts an embossing printing process for the ultra-thin film dustscreens. By applying ultra-light compressions to the film, a matrix of embossed patterns is printed onto the dust screen, which is less than a micrometer thick. This minimizes distortion while making the dust screen acoustically transparent.

Omega-inspired CNC-machined housing and removable earpads

The ES-2a housing is crafted from CNC-machined aluminum alloy parts and a nylon arc, recreating the classic look of the Omega. The earpads are attached to the chassis using a screw fixation mechanism. Swapping them out is possible for personal preference or future maintenance.

Premium PU leather earpads

Each earpad is crafted through a complex assembly process using PU leather.

PC-Triple-C Pro Bias cabling with upgrade options

The Pro Bias connection of the driver is linked via a 6- core PC-Triple-C copper cable with insulation cladding and gold-plated connectors. Additional cable options are available upon request.

Product highlights

• 90mm ultra-thin Mylar electrostatic driver for expansive soundstage
  
• 0.3mm OFC copper electrodes for strong diaphragm propulsion
  
• Industry-first embossed dustscreen for lower distortion and high transparency
  
• CNC-machined aluminum alloy housing with classic Omega-inspired design
  
• Screw-mounted PU leather earpads for easy swapping and maintenance
  
• 6-core PC-Triple-C copper Pro Bias cable with gold-plated connectors
  
• Includes Paulownia wood storage case for long-term protection
  
• Designed for future serviceability and earpad replacement
  
• 1-year manufacturer warranty

Specs

• Transducer Type: Electrostatic
  
• Operating Principle: Open Back
  
• Frequency Response: 10 - 41000 Hz
  
• Sensitivity: 99db / 100v r.m.s.
  
• Housing: Aluminum magnesium alloy
  
• Bias Voltage: DC 580V
  
• Termination: 5-Pin Stax Type Pro Bias
  
• Cable Length: 2.3 m
  
• Weight: 450g (w/o cable)
  
• Temperature / Humidity Range of Use: 0-35 °C / 0-90%

What's included

• ES-2a Electrostatic Headphones
  

• Paulownia wood storage case