Fully discrete analog stages without any OPA and couple caps in the signal channels.
Non- feedback ACSS analog output stage.Class A power supplies , Total have 7 groups PSUs and 3,0000 UF Audio caps for power supplies.
5 channels digital input : RCA coaxial / Optical / USBDAC output : RCA / ACSSUSB Audio Class 2 High-speed Input from PC/MAC (NFB-3.2)Supports full speed Asynchronous Transfer Mode (NFB-3.2)Resolutions support 16 / 24-Bit with sampling rate support 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz (NFB-3.2 USB model)Supports up to 24Bit/192KHz (Coaxial)Supports 2X , 4X and 8X oversampling customers settingMemorizes all settings and it could resume the last settings when power on.
The main differences are as follow:1, The NFB-3.2 applies 2 groups of class A parallel connection PSU supplied for analog output stage, (the analog output stage power supply is very important, so we keep the 2 groups of class A parallel connection PSU here). Another 5 groups of linear PSU's supplied for other parts. The NFB-2.2 applies 6 groups class A parallel connection PSU for the whole gear, and 1 linear PSU for the control parts.2, The NFB-3.2 applies a toroidal transformer, the NFB-2.2 applies an R-core transformer.3, The NFB-3.2 applies mostly 1% SMD resistors and caps, the NFB-2.2 applies mostly DALE resistors and WIMA caps. 4, The NFB-2.2 sound better than the NFB-3.2 on detail , high / low extend but the different not as the price different.
*1 year warranty