2010-12-1
New products
Driver unit for Earspeakers with vacuum tube

Features

The SRS-4170 is a high-quality combination system of the earspeaker SR-407 (Signature) employing the same sound element as the new Λ series SR-507 and the SRM-006tS driver unit with the vacuum tube output stage.

The SRM-006tS is equipped with two RCA and one XLR input terminals and the double-axis 4-gang volume controller can accept fully balanced source signals. Moreover, in order to make the most of full balance circuit, each low-noise FET was carefully measured and thermally combined each other. This resulted in the stable operation of the completely direct-coupled DC circuit with no coupling capacitor and brings out the maximum performance of the SR-407 full-balance sound element. The comfortable string and rich low- and mid-range sound of the SRS-4170 system covers all genres from vocal to orchestra and enables you to enjoy music over a long period of time.

The PC-OCC special-made wide low-capacity parallel cable employed for the SR-407 can send signals from the driver unit to the sound element with little loss, realizing clear and distortion-free music reproduction.


Specifications: SRM-006tS Driver unit ----Export version
●Frequency response: DC 80 kHz / +0, -3 dB (in the case of use of one SR-407 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. 0.02% at 1 kHz 100 V r.m.s. (in the case of use of one SR-404 unit)
●Input impedance 50 kΩ / during balance 50 kΩ × 2 
●Maximum output voltage: 300 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 49 W
●Temperature range for use Between 0º and 35ºC, max. 90% (no condensation)
●External dimensions 195 (W) × 103 (H) × 375 (D) mm (including volume knob and pin jack (20 + 10))
●Weight 3.4 Kg
●XLR terminal polarity No. 1: Sealed; No. 2: Hot; No. 3: Cold (European system)
Specifications and external appearance may be changed without notice in order to improve performance.

When you hope for XLR polarity (the third HOT) of American system, please order it from an approved distributor for your area or an official dealer. 

Specifications: SR-407 (Signature) Headphone
●Type Electrostatic/Open back/Push-pull driving
●Frequency Range 7-41,000Hz
●Capacitance, including cable 110pF
●Sound Pressure Level 101dB/100V r.m.s.
●Cable Wide format Low Capacitance PC-OCC Conductor
●Earpad High quality artificial Leather
●Weight including cable 515g
without cable 340g
●Color Brown
●Operation Temperature 0-35 Degree
Specifications are subject to change without notice.

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