opa627 vs MUSES03(1st try) vs MUSES03(after burn-in)

0:00 Susan Wong - Sunday Mornig OPA627 1:23 Adele - Hello OPA627 2:51 Radwimps - Grand Escape OPA627 5:30 Yanagi Nagi - Harumodoki OPA627 7:05 Susan Wong - Sunday Mornig MUSES03 1st try 8:25 Adele - Hello MUSES03 1st try 9:54 Radwimps - Grand Escape MUSES03 1st try 12:32 Yanagi Nagi - Harumodoki MUSES03 1st try 14:08 Susan Wong - Sunday Mornig MUSES03 after burn 15:28 Adele - Hello MUSES03 after burn 16:57 Radwimps - Grand Escape MUSES03 after burn 19:35 Yanagi Nagi - Harumodok MUSES03 after burn - source: Foobar2000[output DSD WASAPI(event) Amanero USB] - DAC: Dual AK4497 LPF: muses02*2, Buffer: opa627*2 "SWAP TO" muses03*2 - Headphone Amp: มีสองส่วน Input: Dual AD797*2 + AD746JN, Headphone out: Dual opa627 + LME49860NA + 12AU7 tube - Record: ZOOM H1(WAV 96000Hz/24bit) Playback song: - Adele - Hello (DSD128 sample rate: 5644800Hz bitrate:11290kbps) - Susan Wong - Sunday Mornig (DSD64 sample rate: 2822400Hz bitrate: 5645kbps) - Radwimps - Grand Escape (FLAC sample rate: 4410Hz bitrate: 952kbps) - Yanagi Nagi - Harumodoki (FLAC sample rate: 4410Hz bitrate: 1039kbps) Muses03 on 1st try: - Low end of OPA627 was thick after swap to Muses03 become more tight and firm with better impact exchange with smaller body compare to OPA627. - Mid, there is no much different. What i notice is vocal abit lay back on MUSES03 while OPA627 more up front in vocal position. - High, more crisp and clear on Muses03 but there is some harsh sound eg: "sh, zh" sound on vocal and small crash.