Fully discrete analog stages without any OPA and couple caps in the signal channels.
Non- feedback ACSS analog output stage .
Total of 6 groups dedicated power circuits are used to purify the power supply.
45W high performance transformer and more than 25,000 UF audio grade caps .
High-End grade parts built in , ALPS 27 volume pot , DALE resistors, WIMA caps and Toshiba transistors , gold plate pure copper RCA sockets ect.
4 channels input : Coaxial / Optical / USB / Analog Line IN
DAC / Preamp output : RCA (User can setting with either variable level as preamp or fixed output level as dedicated DAC )
Headphone output : 6.3MM SE
USB Audio Class 2 High-speed Input from Windows / MAC / Linux ( We can not guarantee it can working with every Linux device )
Supports High / full speed Asynchronous Transfer Mode up to 384K / 32Bit ability .
Resolutions support 16 / 24 / 32 Bit with sampling rate support 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz,352.8kHz and 384kHz
Supports up to 24Bit/192KHz ( SPDIF input )
1, The Compass 384 had infinite upgrade possible in future , the USB , DIR, DA, ACSS modules can exchange without solder . ( All analog signal transfer in current model for avoid the sound degrade by the modules sockets . Digital signal have the impedance match for avoid sound degrade by the modules sockets . )
USB module: USB-32 sound characteristic is very neutral and a ton of details without harsh . It can cooperation with any DA modules. Up to 32bit / 384K support.
DA modules : PCM5102 sound characteristic is very neutral and a ton of details without harsh .
Dual WM8741 sound characteristic is neutral but slight on the warm side and smooth . Users can setting the digital filter characteristic with two jumpers.
DIR modules : WM8805 sound slight warmer , support up to 192KHz .
DIR9001 sound quite neutral, support up to 96KHz .
OPAs : Users can exchange the OPA chips and discrete OPA modules for Line in without solder .
OPA-SUN sound dynamic ,detail and speed .
OPA-EARTH sound is neutral but slight warmer .
OPA-MOON sound is a bit warm and smooth .
2, The Compass 384 have Line in, users can use it as a dedicate head amp / preamp .
3, The Compass 384 have Line out , users can use it as variable level as preamp or fixed output level as dedicated DAC .