The fixed electrode that drives the whole diaphragm surface consists of three metal sheets unified through precision photograph etching processing on an atomic level using heat diffusion joint technology, which greatly improved the desirable electrode specifications such as planarity, low resonance and high sound wave permeability.
Most part of the chassis is manufactured by precise machining to attain high-quality sound, rigidity and lightweight solution. The SR-009BK newly creates a sophisticated appearance along with the alumite-treated black color of the 80th anniversary special version.
Anniversary model notation is printed at cable attachment part.
Specification
Type
push-pull electrostatic large circular sound element,
open-air type enclosure
Frequency response
5 - 42,000Hz
Electrostatic capacitance
110pF (including cable)
Impedance
145kΩ (including cable, at 10kHz)
Sound pressure sensitivity
101dB / input 100Vr.m.s. / 1kHz
Bias voltage
DC580V
Weight
596g (including cable), 454g (without cable)
Earpad
Genuine sheep leather (skin touching portion), high-quality artificial leather (surrounding portion)
Cable
Silver-coated 6N (99.9999%) OFC parallel 6-strand, low-capacity special wide cable, 2.5m full length
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