Brochure and Manual (ENG) - Hi
Contents
1. 4 1kHz 48kHz 88 2kHz 96kHz 176 4kHz 192kHz 352 8kHz 384kHz Coaxial mode 44 1kHz 48kHz 88 2kHz 96kHz 176 4kHz 192kHz Optical mode 44 1kHz 48kHz 88 2kHz 96kHz EA Version 1 100 130V AC 50 60 Hz Version 2 220 240V AC 50 60 Hz ay 22W ss HZ Approximately 5KG sy AZ W240 X L360 X H80 MM Fully aluminium AC power cord X1 USB cable X1 E AZ User Manual Power button Power ON Off the DAC Setting button Select the Input 2 12S allow PCM only or DSD PCM both format In DSD PCM modes users except connect the I2S cable but want to connect the DSD CTR input to the source DSD CTR output at same time The DSD CTR cable price is USD10 0 5 meter length ee eee ee eee ee ee ee ee ee Selector button Select the input sources 1 USB input 2 12S input 3 Optical input 4 Coaxial input Left one LED display Show the Input 2 12S allow PCM only or DSD PCM both format P is PCM only d is DSD PCM both modes Middle LED display Show current playback music format P is PCM d is DSD Right one LED display Show active input channel 1 USB input 2 I2S input 3 Optical input 4 Coaxial input2. AUDIO GD NFB Summarize Miulti ply shield boards to isolation the power input socket transformer power supplies digital part and the analog part Fully Balanced Discrete design built by discrete analog stages without any OPA and coupling caps in the signal channels 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 A total of 5 groups class A parallel mode PSU power supply for all digital and analog circuits There is another one linear PSU power supply for the control parts 4 digital inputs USB Optical Coaxial RCA 12S Support DSD and DXD through USB and 12S DAC output XLR RCA ACSS Static storage mode control software for avoid disturb sound quality the MCU output once control data and save in the perform parts then stop output data until users next operation Technology detail Detail of the Current Conveyor Technology Simple and short signal transfer is best The NFB 1 2015 applies the newest ESS high end Sabre32 DA chip ES9018 which can support up to 32Bit 384KHz input ES9018 in voltage output model there is 12DB THD N worst to be achieve the best performance of ES9018 must work in current output model In some other ES9018 built in DAC design ES9018 output signal have to through 3 step OPAs implement analogy signal process The NFB 1 2015 had different design applies Non fe
3. edback ACSS design The ES9018 feed to the ACSS circuit by balanced model without any OPAs The ACSS circuit naturally working in current model and have design difference current input it can transfer the ES9018 current signal to output and implement the I V conversion in current model in one ACSS amp And this ACSS amp only have on current gain stage the ES9018 output signal only through one stage can arrive the output stages The shortest signal journey can reproduce the best detail and dynamic and almost without sound coloration It can show the real performance of the ES9018 So our ACSS design is the best combo with ES9018 achieve the best performance Normal ESOS DAC deve The ACSS also is a non feedback technology made with fully discrete amplifiers Most people know the global feedback design can offer better specs in test measurements and non feedback can t do well in test measurements but can offer better sound for the human s ears Here is a conflict of the classic circuits But the ACSS opens a new field it can offer a least coloration sound which is more neutral with very low distortion and high linearity So it can retain the dynamics detail and neutral sound but not sound bright or harsh The output buffers are Non feedback pure class A FET design The DAC is without couple caps to avoid coloration There are two OPAs built in as the DC serve to keep the DC offset The 32bit 384K USB interface outputs a 12S signal t
4. o ES9018 Multi ply Class A power supplies are the key of sound NFB 1 2015 applies the excellent DA chip ES9018 and excellent analog output stages but these are not the only keys of the best sound The power supply is most important Even applying the best DA chip and the best amp if matched to a average power supply the total sound may still be average or sound musical but can t be neutral and detailed That is why it is easy to find hi end grade gears maybe without the best chips but with plenteous dedicated DC supply circuits The NFB 1 2015 uses A total of 5 groups class A PSU power supply for all digital and analog circuits To achieve high S N the control circuit is powered with separate regulator Diagram of the Class A PSUs for analogy parts Diagram of the Class A PSUs for digital parts _ 15 ces ARTE ie Se eS 4 Pe Cee GF m Lias j d T H eH seise I leg ae p m Bat HTI t 4 ce oe E Sd Nhe Se E i m HE PHE mi a F Kl t i pr l O i E Lt 143 sree pares re ee The Multi ply shield boards for avoid the interrupt The NFB 1 had built in Multi ply shield boards to separate the transformer power supply digital parts and analogy parts for avoid the different parts had disturb Even though the power input IEC socket it had hide in a copper shield box Static storage mode control software In most control softwares design
5. the MCU will continuously output data to the perform parts the MCU had the very high speed so the output data become high frequency impulses disturb the audio signal circuits make the sound worst This product had applied static storage mode control software the MCU output once control data and save in the perform parts while just power on and users operate then stop output data until users next operation This design make the sound quality improve on the clear and transparency Built in Hi End grade parts NFB 1 2015 have built in most high end grade parts like the DALE resistors USA WIMA caps Germany and NOVER parts UK These parts have through long term practices and consider have least sound coloration Built in high end grade parts have not warranty have the good sound but the best technology design with high end grade parts can have the high ended sound quality Specifications might subject to change without prior notice for product improvement S N Ratio Output impedance E2 7 AZ Output Level ea Input Sensitivity Frequency Response Support Operate Systems USB gt 120DB XLR output A 10 ohm 2 5V RCA 5V XLR 1 2 1 2MA ACSS 0 5 Vp p 75 Ohms Coaxial 19 dBm Optical HZ 20Hz 20KHz lt 0 2DB Windows OSX Support Sampling Power Requirement Power Consumption Package Weight Dimensions AZ Accessories yy H USB and 12S modes 4
Download Pdf Manuals
Related Search