Unfortunately, one of the op amps from the Supreme Sound Opamp V6 kit – V6 Classic, Dual x 2 ordered on 01/27/2020 and received on 02/18/2020 turned out to be defective. Unfortunately, I can to check it only today (03/13/2020) and what was my frustration and disappointment. The fact is that after 5 seconds – up to 5 minutes after switching on normal operation, the signal level drops by half and when the player stops, stray noise similar to an AC is heard. The previously purchased Supreme Sound Opamp V6 – V6 Vivid, Dual x 2 kit (shipped by your organization from China) works great, but the Singapore speaker proved to be defective. How many of your hourly tests? and what is the way out of this situation?
The System
Listening with
- Frequency response: 10 Hz – 90 kHz (-3 dB, 16-bit/44.1 kHz input)
- Output impedance: not published
- Output voltage: RCA 2 Vrms (line out, RCA/3.5)
- Gain: not published
- Inputs: 1x 6.3 mm line/mic in
- Outputs: 1x 6.3 mm headphone (7 Vrms); 2x RCA; S/PDIF coax out
- DAC / chipset: TI Burr-Brown PCM1792A; ASUS AV100 processor (192 kHz/24-bit)
- Other: headphone output 7 Vrms; SNR (A) 124 dB front / 120 dB headphone; THD+N 0.0003% (front) / 0.001% (headphone); swappable opamps
Burson
Specs from manufacturer data unless a source below says otherwise. “calc.” values are worked out from those figures (V = √(P × R); 110 dB SPL used as a loud reference level). Gear listed without specs is not in our spec library yet.
