The source is Oppo BDP 103.
The amp spec is confusing because the website and the manual state two different spec:
Grant Fidelity website
Output power: 25w
Response: 10Hz to 30KHz
SNR: ≥85dB
THD: ≤1.0%
Input sensitivity: ≤1.0V
Output impedance: 4Ω, 8Ω
Tubes: Standard Shuguang 845B×1, 300B-98 x 1, 6SN7GT ×1 per amp
Manual:
Input impedance: 100kohm
Input Power Voltage: 4.0V
Output Power:28W
Output impedance: 4、8Ω
Frequency Response: 10Hz-30KHz
THD: less than 1.5%
S/N Ratio:85dB
Power supply:AC 115V 60Hz
Power consumption: 170w per channel
Not sure what to believe.
The amp spec is confusing because the website and the manual state two different spec:
Grant Fidelity website
Output power: 25w
Response: 10Hz to 30KHz
SNR: ≥85dB
THD: ≤1.0%
Input sensitivity: ≤1.0V
Output impedance: 4Ω, 8Ω
Tubes: Standard Shuguang 845B×1, 300B-98 x 1, 6SN7GT ×1 per amp
Manual:
Input impedance: 100kohm
Input Power Voltage: 4.0V
Output Power:28W
Output impedance: 4、8Ω
Frequency Response: 10Hz-30KHz
THD: less than 1.5%
S/N Ratio:85dB
Power supply:AC 115V 60Hz
Power consumption: 170w per channel
Not sure what to believe.