for audio:
preamp: mang rod preamp with 6dr7 tube
power amp: mang rod 6c33c set 15w/ channel
phono preamp: mang rod phono preamp
cdp: exposure 3010
turntable: pioneer pl-50
interconnect: xlo reference 2 A1
dh labs revelation
speaker cable: dh labs q10
speaker: coincident partial eclipse II
for home theater:
Av receiver: Harman Kardon AVR 7000
LCR speaker: polk audio rm75
rare speakers: mission d77
subwoofer: def tech pro sub 100
video source: popcorn hour A100
room acoustic:
diy resonator ( the secret behind good music)