Soekris Engineering ApS dac1101 Users Manual
www.soekris.dk 3 March 2016
Introduction
The Soekris dac1101 is a small R-2R DAC, with USB input and output to either the built in
headphonesamplifier on a front mounted 6.3mm Jack, or to line level output on rear mounted RCA
Phono connectors. The dac1101 is not just any regular DAC, the sound quality is the absolutebest
available, thanks to the ultra high end design with a discrete R-2R sign magnitude DAC using a
total of 224 small and very precise resistors, and a discrete headphonesamplifier with zero negative
feedback, delivering high power to almost any headphones. The dac1101 R-2R DAC circuit is fully
isolated from the noisy computer USB interface. It supportsinput signals on the USB interface up
to 24 bit / 384 Khz PCM audio, and up to DoP-128 (x2) and DSD-256 (x4) audio. It has a fully
digital volume control and four sets of digital anti-aliasing filters to fit any taste. The dac1101 is
designed and built in Denmark, using advanced surface mount technology and parts from only the
highest quality suppliers.
Quick Start
Plug in the supplied USB Cable to the dac1101 and connect it to your computer, plug in your
headphones, set the rear left switch to “PHONES”, set the rear right switch to “USB1”, select
“soekris dac1101” as output in your computer settings and start playing music. The default power
up settings for volume and anti-aliasing filters are stored in flash memory and can be changed, see
rear view description for details.
Specifications
THD @ -1db <0.01%
THD @ -60dB <0.04%
S/N Ratio 20 Khz Bandwidth >118 dB
Frequency Range @ 44.1 Khz PCM 20hz -20Khz, +0.1dB -1.0dB
Frequency Range @ 384 Khz PCM 20hz -80Khz, +0.1dB -1.0dB
USB Input Type B, Fully Isolated, Full or High Speed
USB Input Mode Selectable Audio Class 1.0 or Audio Class 2.0
USB Input PCM Up to 24 Bit / 384 Khz
USB Input DSD Up to DoP-128 (x2) and DSD-256 (x4)
Digital volume control -80 dB to +10 dB
Output Line RCA Phono, 2.0V RMS, Zout 50R
Output Headphones6.3mm Jack, 3.5V RMS into min. 16 ohm, Zout 3 ohm
Power Consumptation From USB max 3.5W
Size 108 x 160 x 20 mm
Weight 0.3 Kg
Warranty 3 Years
