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dedicated isolated USB audio output
from sensitive IEMs to the HiFiMan Susvara and beyond
power supply design
open-back Transducer type Dynamic Driver Magnesium M-dome Frequency response 5 Hz - 28 kHz THD <0
Internal linear power supply (updated from the original two-box design)
SW1X PRE II Pre-Owned dedicated isolated USB audio outputThe SW1X PRE II is a pure Class A, zero negative feedback line preamplifier with an Output Transformerless (OTL) power valve output stage, a natural extension of the SW1X DAC and LPU phono stage ecosystem, using 6V6GT power tubes to reduce output impedance and add authority, fullness, and dynamic expressiveness to any source connected before it. Type and Technology Line preamplifier with optional phono stage, single ended Class A vacuum tube. OTL
