The emitter-follower circuit with high-voltage bipolar transistors adopted for the output stage of the SRM-323S enabled low output impedance resulting in increased drivability and wide high-frequency dynamic range. Moreover, the power transformer equal to that of the SRM-006tS has been adopted to achieve more powerful derivability. One simple RCA input is equipped with a parallel-out terminal directly providing the incoming signal. Two 5-pin output sockets are connectable to all pro-bias compatible earspeakers. The SRM-323S employs a double-axis volume controller to control left-and -right channel volume level independently without using a balance volume controller. Frequency response DC~60kHz / +0, -3 dB with SR-307 Rated input level 100 mV / 100Vrns Maximum input level 30 Vrms at minimum volume Amplification: 60 dB (x1000) Total harmonic distortion  0.01% at 1kHz, 100 Vrms with SR-307 Input impedance 50kΩ RCA Inputs RCA Maximum output voltage 400 Vrms / 1 kHz Standard bias voltage 580VDC Temperature 0~35 degrees, max. 90% (no condensation) DIM 150x100x360 mm Weight 2.9kg Total weight in Retail box 3.5kg

Japan Made. Highest manufacturing standard Compatible EarSpeakers: sr-007, 507, 407, 404, 307, 303, 207, 202, 003 Contents .. SRM-323S Driver Unit powered on AC100V. We sell Voltage Converters. Japanese Manual with adequate diagrams. Supplied by Authorized Resellers in Japan. 1 year Japan Warranty from the day we sent your parcel. We can help you liaise with the maker in Japan. You will pay for postages to/from our Japan office. Singapore and Malaysia buyers can bring/post to us locally. We will deliver FREE to/from Japan. Return postage chargeable.