1, The Compass 2 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 . )
DA modules : ES9018
sound characteristic is very neutral and a ton of details without
harsh, bass is speed and control .
Dual PCM5102 sound characteristic isneutral and a ton of details ,
bass is strong and rich .
Dual WM8741 sound characteristic is slight on warm side and smooth ,
bass is deep and rich .
DIR modules : Users
can choice the SPDIF signal feed
to either ES9018 direct and through DIR module with 3 jumpers
setting , which is simply for users choice different sound flavors .
Other DA modules must setting with DIR active model .
WM8805 sound slight warmer , support up to
DIR9001 sound quite neutral, support up to 96KHz .
OPAs : Users can exchange the OPA chips and discrete OPA
modules for Line in without solder ( The USB, coaxial and optical
inputs is applied the built in DAC, it transfer signal to the built
in amp direct without any OPAs , so replace the OPA have not effect
the sound on USB, coaxial and optical inputs ).
sound dynamic ,detail and speed .
OPA-EARTH sound is neutral but slight warmer .
sound is a bit warm and smooth .
2, The Compass 2 have Line in, users can use it as a dedicate head
amp / preamp .
3, The Compass 2 have Line out , users can use it as variable
level as DAC with preamp combo or fixed output level as dedicated
Fully discrete analog stages without any OPA and couple caps in the signal channels.
( Built in DAC and head amp)
Non- feedback ACSS analog output stage .
Total of 6 groups dedicated power circuits are used to purify the
45W high performance transformer and more than 25000 UF audio grade
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 :
USB Audio Class 2 High-speed Input from Windows / MAC / Linux
Supports High / full speed Asynchronous Transfer Mode up to 384K / 32Bit
ES9018ES9018 input direct model ,USB model ：Resolutions support 16 /
24 / 32 Bit 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz
PCM5102 USB model ：Resolutions support 16 / 24 / 32 Bit ， 44.1kHz,
48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz,352.8kHz and 384kHz
WM8741 USB model ：Resolutions support 16 / 24 / 32 Bit ， 44.1kHz,
48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz