AudioGD NFB 28 ЦАП DAC на Sabre 9018 усилитель для наушников
NFB-28 (Sabre) AudioGD DAC, ЦАП, Усилитель для наушников
USB, Оптический и коаксиальный интерфейсы.
Fully balanced design built by discrete analog stages without any OPA and coupling caps in the signal channels, built in real balanced DAC, output for headphone (4-pin XLR or 1/4") and line level DAC (fixed output) with preamp (variable output)
Non- feedback ACSS analog output stage.
LED display avoids RF disturbance for better sound quality
Large R-core transformers and Hi-fi grade parts like DALE resistors, WIMA caps.
Total of 6-group PSUs are used to purify the power supply, the analog amp has discrete PSU power supply
Four-channel digitally controlled relay-based volume control to avoid channel imbalance and improve sound quality.
80 steps volume level control in both high gain mode and low gain mode. 160-step volume control ensures smooth control of the volume level.
NFB-28 is a real balanced DAC. It has balanced outputs (ACSS, XLR and balanced headphone output) and single-ended output. There are 4 ACSS amplifiers in the NFB-28 for balanced outputs and balanced inputs. Even when a single-ended output is used, the ES9018 DA chips will perform fully thanks to the fully balanced design.