Unison Research'S Unrivalled Ability with Single-Ended Valve Designs is Well Known around the world. THE SH IS THE COMPANY'S FIRST HEADPHONE Amplifier to Benefit from Such Extensive Knowledge and Ability. The HS USES A Single-Ended Class A Design with Only Two Internship and a passive volume control. The Classic Refinement of the Valves Combines with Modern Technology Found in the Internal USB DAC to Produce Something Truly Stunning.
USB DAC Specification Asynchronous USB compliant interface to USB 2.0 audio class Accepts PCM UP TO 384KHZ and DSD UP TO 128X Resolution Up to 32 bits Last Generation ESS Saber Dac With Jitter Eliminator Circuit Galvanic Insulation Between USB Interface and Conversion Circuit Low Noise Phase Clocks Which Reside in The "Clean" Supply Domain to Preserve Low Jitter Performance 110db SNR (@ 1khz, "WEIGHTED, 192KHz) 0.008% THD + N (@ 1khz, -3dbfs)
Maximum Output Voltage (THD 1%): Output "high sensitivity" 0.5 V / 150 ohm, 0.45 V / 33 ohm, 0.4 V / 10 Ohm Output "Low sensitivity" 1.5 V / 150 ohm, 1.2 V / 33 ohm, 0.65 v / 10 ohm
Frequency Response: -0.1 dB @ 10Hz / 3-DB @ 50 kHz (Output "Low Sensité", 33 Ohm Load)
INPUT IMPEDANCE: 20 KOHM // 100 PF
Sensitivity: 0.67 V in / 0.33 V OUT (Output "High Sensitivity", 10 Ohm Load) 0.67 V in / 1 V OUT (Output "Low Sensité", 33 Ohm Load)
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