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STAX SR-307 Earspeakers w/ SRM-323S Driver System

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SR-307 Earspeakers w/ SRM-323S Driver System

Item # : STX-SRS-3170


1 Year Parts and Labor

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$1,250.00 Each
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SR-307 Earspeakers w/ SRM-323S Driver System

The SRS-3170 is a standard combination system of the SR-307 with the sound element featuring the same new material "super engineering plastics" diaphragm as upper models and the SRM-323S solid-state DC amplifier with all-stage direct-coupled balance output circuit configuration.

The SR-307 adopted the PC-OCC low-capacity parallel cable with the gold-plated plug, securing the reliability over a long period of time. The SR-307 can offer more natural sound stage of the electrostatic type earspeakers in combination with the SRM-323S.

The emitter follower output stage of the SRM-323S using high-voltage bipolar transistors lowered the output impedance to improve the drive capability, and also expanded the dynamic range of a high-frequency range. Moreover, the power transformer equal to that of the SRM-006tS has been adopted to achieve powerful derivability not only for musical reproduction but also for monitoring purpose of professional use.

Product Details
Brand STAX
Condition Notes


Warranty 1 Year Parts and Labor
Weight (lb) 6.4000
Height (In) 3.93
Width (In) 5.9
Length/Depth (In) 14.173
Weight (Kg) 2.9
Height (mm) 100
Width (mm) 150
Length/Depth (mm) 360
Specifications: SRM-323S Driver unit ---Export version
●Frequency response: DC- 60 kHz (SR-307, when using one unit)
●Rated input level: 100 mV with 100V output
●Maximum input level 30 V r.m.s. with volume at minimum setting
●Amplification: 60 dB (x1000)
●Total harmonic distortion max. 0.01% (1 kHz / during 100 V r.m.s. output)
●Input impedance 50 kΩ (RCA)
●Maximum output voltage: 400 V r.m.s. / 1 kHz
●Standard bias voltage DC580 V (PRO bias)
●Power voltage AC120V-240V ± 10%, 50 to 60 Hz. (Adjusted for your area)
●Power consumption 30 W
●Temperature range for use Between 0º and 35ºC, max. 90% (no condensation)
●External dimensions 150 (W) × 100 (H) × 360 (D) mm (including knobs and terminals)
●Weight 2.9 Kg
Specifications and external appearance may be changed without notice in order to improve performance.

Specifications : SR-307 (Classic) Headphone
●Type Push-pull electrostatic earspeaker
●Frequency Range 7-41,000Hz
●Capacitance, including cable 120pF
●Sound Pressure Level 101dB/100V r.m.s.
●Cable / color 2.5 m, PC-OCC, low-capacitance cable / gray
●Earpad Highly permeable high-quality synthetic leather
●Weight including cable 490g
without cable 340g
●Channel Identification: Displayed on the headband arc section; Left: Solid line on cable; Right: Dotted line on cable.
●Operating temperature and humidity Between 0º and 35ºC, max. 90% (no condensation)
Specifications are subject to change without notice.

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