업그레이드 1차 시도 실패...

 HEAD-FI GAERS IN USE.

USB DAC/AMP:

 CAYIN RU7 

 AUDIOQUEST DRAGONFLY COBLAT

 HIBY FD3

BLUETOOTH DAC/AMP:

 IFI GOBLU

 FIIO BTR5 2021

DAP:

 HIBY R6 PRO2

 CAYIN N3PRO

 MOTO G STYLUS 

AMP:

 MONOLITH THX887

 ZENAIRCAN

OVEREAR HEADPHONE(WIRED):

 FORCAL RADIANCE

 DCAxDROP AEON X CLOSED

 BEYEREDYNAMIC AMIRON HOME

 SENNHEISER 660s

OVEREAR HEADPHONE(WIRELESS):

 SHURE AONIC 50

 AKG K361 BT

INEAR MONITOR(WIRED):

 CAMPFIRE AUDIO ANDROMEDA 2020

 EMPIRE EARS BRAVADO MK2

 AKG N5005

 FATFRAQ MAESTRO MINI

 FINALAUDIO A5000

 FINALAUDIO E4000

 FINALAUDIO E3000

 FINALAUDIO E500

 FINALAUDIO TANE

 JVCxDROP HA-FWX1

 WESTONE W40 GEN2.

 SENNHEISER IE200

 LETSHUER S12

 ETYMOTIC RESERCH ER2SR

 UCOTEC RE-2

 MOONDROP ARIA SNOWEDITION

 CCA CRA

 Tang Zu Chang Le

 BD005PRO

MOONDROP CHU2.

"Project ii proto B type."

 "Project ii proto O type"

INEAR MONITOR(WIRELESS):

 TWS:

  BUDS2

  DEVIALET GEMINI

  RAZER HAMMARHEAD X

GAERS NOT IN USE

 WAN'AR, WU ZETIAN HEYDAY ED, W20, SPH9600, V60, BEYEREDYNAMIC BLUE BIRD GEN2, ZENAIRDAC, BTA30 ,, SB X-1, FIILXS, TONE 6,

 BEAT SOLO, MEZE99, , N40, APPLE BUNDLE, DAMSUNG BUNDLE,

 PX,LCDI3,QB3,CXpro CX31993.ETC....