ENCLOSURE:
Aluminium is widely valued in audio design for its strength, light weight, and excellent acoustic properties. In the SR-009S, aluminum is used extensively throughout the enclosure, including the frame that supports both the exterior structure and the sound element.
Nearly every part of the SR-009S is manufactured using precision machining, contributing to its rigidity, durability, and refined sound quality.
CABLE:
The SR-009S uses high-purity copper originally developed for large-scale integrated circuit wiring and now recognized as an excellent material for high-quality audio cables.
Its cable is made from 99.9999% pure 6N copper, silver-coated and arranged in an optimized structure designed specifically to drive the earspeaker with accuracy and stability.
EARPAD:
The newly designed earpads are carefully handcrafted by skilled artisans. They combine genuine leather, which provides a comfortable humidity environment for the skin, with a cushion material selected for its moderate elasticity.
The result is a secure, comfortable fit that allows for hours of enjoyable music listening.
ARC (Headband):
The arc assembly features a 10-step slider adjustment mechanism, allowing the headband to accommodate a wide range of head shapes and sizes. This ensures a stable, personalized fit for long listening sessions.
SR-009S SPECIFICATIONS:
| Specifications |
Details |
| Type |
Push-Pull Open Back Circular Electrostatic Headphone |
| Frequency Response |
5 – 42,000 Hz |
| Electrostatic Capacitance |
110 pF, including cable |
| Impedance |
145 kΩ, including cable, at 10 kHz |
| Sound Pressure Sensitivity |
101 dB / 100 V r.m.s. at 1 kHz |
| Maximum Sound Pressure |
118 dB / 400 Hz |
| Bias Voltage |
580 V DC |
| Left & Right Identification |
“L” and “R” indicated on the arc assembly, inside the head spring. Left channel cable is marked with a solid line; right channel cable is marked with a dotted line. |
| Ear Pads |
Genuine lamb leather for direct skin contact; high-quality synthetic leather for the surrounding portion |
| Cable |
Silver-coated 6N OFC, 99.9999% purity, parallel 6-strand, low-capacity special wide cable, 2.5 m full length |
| Weight |
1 lb without cable / 1.3 lb with cable |