Out of curiosity I wanted to test the potential of my amp and I searched the internet for a compatible amp brand. After weeks of research and analysis of the proposed products (6 brands OPA627 and OPA1612, LME 49720, MUSE02 and AD8820 and Burson V5i). 2 brands came in the end (MUSE02 and BURSON V5I). I bought both of them. I received yours first and I put it immediately on my amp and there miracle! the scene is widened but what I appreciated the most is the separation of the instruments, it is phenomenal. I don’t regret my purchase and I’m going to study the purchase of an amp of your brand! PS: my IEM UM Best MKII, ERASONICS VELVET II and BLADE etc..
The System
Listening with
xDuoo XD-05 Bal · DAC / headphone amp: portable balanced DAC / headphone amp (battery, Bluetooth 5.1)
- Frequency response: 20 Hz – 20 kHz ±0.5 dB (DAC); 10 Hz – 60 kHz ±0.5 dB (amp)
- Output power (XLR / SE): 32 Ω 1 W / 1 W
- Output voltage: RCA 2.0 V (3.5 mm line out)
- Gain: +6 / +15 dB (plus bass boost)
- Inputs: USB (PCM 768 kHz/32-bit, DSD512); coaxial / optical; AES; 3.5 mm aux; Bluetooth (AAC, aptX HD, LDAC)
- Outputs: 6.35 mm SE headphone; 4.4 mm balanced headphone; 3.5 mm line out
- DAC / chipset: 2x ESS ES9038Q2M; XMOS XU208; Qualcomm QCC5125 Bluetooth
- Other: THD+N 0.0015% SE / 0.0009% bal @ 1 kHz; S/N 115 dB SE / 117 dB bal; 5000 mAh battery
[1] [2]
Burson
Burson V5i Opamp · Discrete opamp (single / dual) · current
- Supply voltage: ±5 V / 10 VDC to ±16 V / 32 VDC (absolute maximum)
- Gain-bandwidth product: 50 MHz (at 100 kHz)
- Dual or single: dual and single
- Package: 11 mm wide × 11 mm deep × 7.3 mm high
[3] [4]
Also in the system
OPA627 · Operational amplifier
- Supply voltage: ±4.5 V to ±18 V (recommended); ±18 V dual-supply absolute maximum
- Gain-bandwidth product: 45 MHz typ (OPA627AU/BU, gain = 1, CL = 30 pF); 16 MHz typ (OPA627AM/BM/SM)
- Dual or single: single
- Package: SOIC-8; TO-99
[5]
OPA1612 · Dual operational amplifier
- Supply voltage: ±2.25 V to ±18 V (recommended); 40 V absolute maximum (V+ − V−)
- Gain-bandwidth product: 40 MHz (G = 1)
- Dual or single: dual
- Package: SOIC-8
[6]
LME49720 · Dual operational amplifier
- Supply voltage: ±2.5 V to ±17 V (recommended); 36 V absolute maximum (V+ − V−)
- Gain-bandwidth product: 55 MHz typ
- Dual or single: dual
- Package: SOIC-8; PDIP-8; TO-99
[7]
NJR/Nisshinbo MUSES02 · Dual operational amplifier
- Operating voltage: ±3.5 V to ±16 V
- Supply voltage: ±18 V (absolute maximum)
- Gain-bandwidth product: 11 MHz typ (at 10 kHz)
- Dual or single: dual
- Package: DIP8
[8]
