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Audio-GD Master 7 (Singularity) Dedicated Discrete Fully Balanced DAC

RM 12,799.00
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ItemID
204149699
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Within Malaysia   
Weight
15KG (kg or dimension)
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998
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StarsPicker
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GST ID: 001461805056

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Item Specification
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  • Brand : Audio-GD
    Model / SKU : Master 7 (Singularity)
    Conditions : New

    Product Description


    Audio-GD Master 7 (Singularity) Dedicated Discrete Fully Balanced DAC

    KINDLY PM FOR LATEST STOCK AVAILABILITY BEFORE MAKING PAYMENT
     
    Hai Wei
     
    ** Facebook http://m.me/StarsPickerAudio
     
    ** WhatsApp https://goo.gl/GsPFak

    Master 7 (Singularity) 

    (The 
    PCM1704UK stock in an emergency,
    Global 100
     units limit
    )
    Dedicated Discrete Fully Balanced DAC
    Fully programmable hardware design ,support future upgrade without hardware modify
    Built in 8 PCs top grade R-2R  PCM1704UK

    32bit / 384K Amanero combo384
    Supports up to 384KHz /32Bit at USB & IIS
    Supports up to 192KHz 
    /24Bit at SPDIF

    OCC wires & TCXOs applied
    Building with top grade parts & workmanship

            

           

             

              
        

    Audio-gd products had design and test based on the AP SYS-2722 (The top-drawer professional equipment in world)  

    Singularity 7,the total full new design:
               Whilom, I wish can support the products upgrade after sale, I was applied the modules design, I was design the DIR modules for the SPDIF process, and the DSP module for the data process, and the CAST module or others for the analog process .
               However , the modules design had degrade on the sound quality , the benefit of the upgrade able is not worth . 
                Afterward , I had not put the point on upgrade after sale, I had design the last version Master 7, except the USB input module, all parts had assemble on the motherboards , it was a succeed product. It had much better sound quality than our any older design, it sale more than 54 months without upgrade the design.
               Now, Singularity 7 release, the design had give up the normal and low performance chips, which is only can working with tens MHz frequency clock , it applied two pcs Xilinx CPLD, and an Altera FPGA to perform all the data process . All three chips are the Programmable and  ultra high speed devices , the different to the MCU, ARM and CPU is they can process a lot different data simultaneity up to 450MHz speed, but the MCU, ARM and CPU only can process the data step by step in series. Simultaneity data process can much exact to process and this is most important in digital audio area .
               Singularity 7, applied the software design hardware concept , the benefit of the programmable chip applied, not only I can through edit the codes in the software to perform different hardware design for improve the performance or get different functions, but the programmable chips had very short signal journey and without parasitical capacitances , the digital signal had much exact in transmit and process, avoid the data lost because the signal delay and attenuation .  
               Singularity 7, built in two high performance TCXOs for process different sampling signal, working as in the no jitter state, revert all detail and soul of the musics .
               Singularity 7, no longer had the performance and sound quality limit by the normal and fixed function chips like the DIR9001, WM8805 and the DF1706, all function blocks are through the software design with the ultra speed characteristic, can got the best timing performance ,  minimal jitter , boost the sound quality most neutral , the detail, dynamic can fully show in your system.
               Singularity 7, through software design and perform below hardware circuits:
               SPDIF (coaxial and optical ) decoder .
               AES/ EBU decoder.
              Source signal select with minimal timing delay .
              Clock signal regeneration .
              Digital signal process and refuse jitter process.
              Digital filter process.
              Singularity 7,I had design the most neutral sound quality, but for best suite the users personal flavors which is like the coloration sound flavor , it had built in different setting for users can through change the setting and oversampling (8x, 4x, 2x and NOS) to get different sound flavors .
              Singularity 7, the fully programmable design , while the digital audio technology had develop ,I can edit the software codes for improve the product  without modify the hardware on boards. If users love the PCM1704, it will not become out in future ten years even longer .
              Singularity 7, applied the top grade R-2R  PCM1704UK chips ,which is famous in world, even through I had order a large number from TI before the PCM1704 discontinued , but for the hot sale in these years, the stock in an emergency , I only can arrange to build 100 units Singularity 7 , not long later, the product which is built in PCM1704 will become story .
              Singularity 7 , the sampling support of all inputs as below (Cause by the PCM1704 support up to 1536KHz sampling, so the 192KHz or lower sampling can working between NOS to 8x times oversampling, over 192KHz will working with 4x times oversampling auto, or by the users setting between NOS to 4x times oversampling ).

               IN1 : BNC coaxial input, support up to 24bit / 192KHz .
               IN2 : RCA coaxial input, support up to 24bit / 192KHz .
               IN3 : RCA coaxial input, support up to 24bit / 192KHz .
               IN4 : Optical  input, support up to 24bit / 192KHz .(note 1)
               IN5 : IIS input, support up to 32bit / 384KHz .(note 2)
               IN6 : USB input, support up to 32bit / 384KHz .

              Singularity 7, except the full new digital design, but the analog design had improve for get lower distortion and better transparency sound quality .
    (Note: 1, The optical receiver had applied the 25M bandwide parts, it can support up to 24bit / 192KHz in test, but the worldwide standard is up to 96KHz , so users must check your source if support up to 192K.
               2, The IIS input can support up to 384KHz in test but if the transmit cable is too long or had worst quality, it may can't achieve the design performance .)


    Singularity 7 technology detail:

    ACSS :  
                  Singularity 7, is a real fully balanced discrete design.
                  Applies the 8 Pieces Expensive high-end grade PCM1704UK, which is the top grade R-2R chips, every channel had built in 4 pcs , every 2 pcs in parallel, and then they are working in balance mode . In my particular design, all 8 pcs PCM1704 are working for outputs, even just connect the RCA outputs .
                   

                   The SPDIF inputs can support up to 24Bit / 192KHz ,and the USB, IIS inputs support up to 32Bit / 384KHz .Cause by the PCM1704 support up to 1536KHz sampling, so the 192KHz or lower sampling can working between NOS to 8x times oversampling, over 192KHz will working with 4x times oversampling auto, or by the users setting between NOS to 4x times oversampling .
                   Different to other PCM1704UK designs , it applied Non-feedback ACSS analog stages. The 8 pcs PCM1704UK feed to the ACSS analog stages without any OPAs and couple caps so it can avoid sound coloration .
                  The ACSS 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 classic 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.
                  About the ACSS technology detail, Mr. Ho had post some few articles in the monthly since 2007 year.   


    Output buffers :        
        
    The output buffers are newest improve version Non-feedback   pure class A FET Cascode desgn  . Its distortion is much lower than the last version . For low impedance, it applied the dual FET buffer output stage which is quite less colored than most conventional circuits, the output impedance is less than 10 ohm.

    Processor:
               Singularity 7, applied the software design hardware concept , the benefit of the programmable chip applied, not only I can through edit the codes in the software to perform different hardware design for improve the performance or get different functions, but the programmable chips had very short signal journey and without parasitical capacitances , the digital signal had much exact in transmit and process, avoid the data lost because the signal delay and attenuation . 
               Singularity 7, built in two high performance TCXOs for process different sampling signal, working as in the no jitter state, revert all detail and soul of the musics .
               

               Singularity 7, no longer had the performance and sound quality limit by the normal and fixed function chips like the DIR9001, WM8805 and the DF1706, all function blocks are through the software design with the ultra speed characteristic, can got the best timing performance ,  minimal jitter , boost the sound quality most neutral , the detail, dynamic can fully show in your system.
              Singularity 7, through software design and perform below hardware circuits:
              SPDIF (coaxial and optical ) decoder .
               AES/ EBU decoder.
              Source signal select with minimal timing delay .
              Clock signal regeneration .
              Digital signal process and refuse jitter process.
              Digital filter process.
              Singularity 7,I had design the most neutral sound quality, but for best suite the users personal flavors which is like the coloration sound flavor , it had built in different setting for users can through change the setting and oversampling (8x, 4x, 2x and NOS) to get different sound flavors .
              Singularity 7, the fully programmable design , while the digital audio technology had develop ,I can edit the software codes for improve the product  without modify the hardware on boards. If users love the PCM1704, it will not become out in future ten years even longer .

     

    Power supply:
                Singularity 7 applies the excellent 8 pcs PCM1704UK and excellent analog output stages, but these are not the only keys of the best sound.
                The power supply is most important. Anythings in the signal are source from the power supply .
                Even applying the best DA chip and the best amp, if matched to a normal power supply, the total sound may still be average or sound musical, but can't be neutral and detailed. 
                 Singularity 7 had total 3 units R core transformer for power supply the digital and analog separate. And more than 50,000 UF caps for smooth the power supply .There are  total 22 PSU groups are applied. Uses 19 groups of high-quality class A parallel connection PSU with dedicated DC supply double-stage PSU.
                  The class A parallel connection PSU had ultra high input impedance, which is can refuse the  power interrupt through the PSU , it also had very low output impedance ,which can offer very clear DC power for the DAC, producing a very black background and neutral sound characteristic. The double-stage PSU is very important for digital parts. Some designs may have very low jitter in theory, but if the power is supplied by a dirty or low-speed power supply, it will increase the jitter and pollute the data, and degrade the sound quality obviously.
                Why to said how excellent of the class A parallel connect PSU but less design in the audio products? This just same as the pure class A amp, it had high request on the parts quality and building workmanship , in nowdays the money world , even the expensive brands had not like to applied. 

                     

    Building:
              Singularity 7, it is not put the parts full in the chassis, but the audio grade parts can offer better performance and working steady . Applied the normal parts not worst if the design is excellent, still can had rich musical , but no way to had the most neutral sound . 
                Singularity 7 had most applied DALE, WIMA and Nover ect. audio grade parts, and the Canare , Natrik sockets, and the OCC wires, custom order TCXOs which is building without compromise . 
                
    Singularity 7, assemble in a heavy monsters chassis which is built by pure aluminium . It had the thick aluminium board to separate the power transformer, digital parts , the left and right analog parts. Even the IEC power inlet, had shield in a pure cooper shield box .
                

                Singularity 7 , every unit finished the parts assemble , must had the full test by the technician , then build by another technician . There are 300 hours burn in time after building, during the burn in time, every unit must had two times test in every day . Finally , the QC technician had the final test and audition before package and shipping.  The complex process in the building , just for keep every units had the highest quality .
               

    Please note:
            The product even had burn in over 300 hours before shipping, but based on the other users feedback, it need least another 150 hours burn in for get the steady state, and the best state will be after 1000 hours burn in , it mean another 700 hours burn in .
            The product had easy and simply operate so the Use Manual only post on this page, without other version . For best apply the built in functions, please discuss in forum .
             The product had the most neutral sound quality, may can't had the best suite all users personal favorite or original audio systems but users can try to change the inside setting for get other sound flavors, and search the best match .
            There are some spare parts and short jumpers shipping with the unit in the package, please keep them well for future use if necessary.

            The product had the pure class A design, we are not recommend stack other products on its top directly, it need least 3CM room on its top side. Also we are not recommend stack it on the top of other hot products , it should place on the shelf .
            Please power of before connect or disconnect the inputs and outputs .
            Power on the product must had more than the half minute after last power off .
            If user want to open the unit and change the inside setting, must confirm the product is working perfect .
            For the electric safe, user must pull off the AC power cable before open the product .
            Even the product had open the top cover, if it had issue in future but not cause by user and the all boards, parts and wires had not modify and take off, its warranty still hold on.
            Post your review in forum for got the free for a next software update.



     

    The display auto dark :  
            
    Push into the jumper for auto dark .The display will dark after user stop operate the buttons on front plate .
            Please operate while the unit had power off .
            For safe, user must pull off the AC power cable before take off the top cover.
            After setting the display auto dark, while the display auto dark, there is only one LED light for sign the unit is working.

    DSP-1 Jumpers setting

    Jumpers Number

    Setting

    Functions describing

    BYPASS

    Inactive (OFF)

    Active (ON)

    For the HDMI or IIS input, if the sources or transmit cause the signal had not enough good, the sound had noise or distortion, push into the jumper for fixed the issue.(While USB and SPDIF inputs,this had not function )

    PLLEN

    Inactive (OFF)

    Active (ON)

    PLL setting

    DITH

    Inactive (OFF)

    Active (ON)

    Data Dithering

     

     8X Oversampling

    4X Oversampling

    2X Oversampling

    NOS

    The sound will become smoother and warmer while setting lower oversampling.

    IPS0

     (OFF)

     (ON)

     (OFF)

     (ON)

    IPS1

     (OFF)

     (OFF)

     (ON)

     (ON)

    ATT0/ATT1

     

     

     

     

    Reserved


    Note:     ON mean the jumper push on. 
                  OFF mean the jumper pull off. 
                  Please power off the unit while change the jumpers for avoid the chip damage by the static electric . 
                  For safe, user must pull off the AC power cable before take off the top cover.


    IIS definitions:

             Customer can send the different definitions to us for custom order the different definition of the I2S (RJ45 and HDMI ) ,we can promise the product can follow customer's request  but we can't promise the unit can working well with customer's device . If the devices can't working , it maybe had the reason as follow :
    1, The I2S cable had bad connect.
    2, The I2S cable had wrong wire connect inside.
    3, The customer send the wrong definition to us.

    Please note: Don't hot push / pull of the I2S cable. Any time must power off the units then push or pull the I2S cable. 

     

    RJ45 definitions :
    Pin 1 :          SDATA
    Pin 3 :          LRCK
    Pin 5 :          SCLK
    Pin 7 :          MCLK
    Pin 2,4,6,8 :GND

    HDMI definitions :
    Pin 1 :        SDATA -                      
    Pin 2 :        GND                          
    Pin 3 :       SDATA +                     
    Pin 4 :       SCLK +                        
    Pin 5 :       GND                          
    Pin 6 :       SCLK -
    Pin 7 :       LRCK -                         
    Pin 8 :       GND                          
    Pin 9 :       LRCK +
    Pin 10:      MCLK +                      
    Pin 11:      GND                          
    Pin 12:      MCLK -
    Pin 13:      NC                             
    Pin 14:      NC                            
    Pin 15:      NC
    Pin 16:      NC                             
    Pin 17:      GND                          
    Pin 18:      NC
    Pin 19:      Auto on control  (Without function in this product.)

     

    Specifications might subject to change without prior notice for product improvement.
    S/N Ratio
    >120DB 
     

    Output impedance
     
    <10 ohm (XLR ,RCA)
    >10000 K ohm ( ACSS)

    Output Level
     
    2.5V (RCA)
    5V (XLR)
    2+2MA (ACSS)
    Frequency Response
    20Hz - 20KHz (< - 0.5DB) 
     
    THD <0.0005% (20Hz-20KHz, Non-Weight)
    Input Sensitivity


    0.5 Vp-p ( 75 Ohms, Coaxial )
    19 dBm (Optical)
    USB1.0 - USB3.0 
     


    Support Operate Systems (USB)
     

    Windows, OSX, Linux, ISO

    Support Sampling  
    USB / I2S mode: 44.1kHz
     - 384kHz /32Bit
     Coaxial mode: 44.1kHz - 192kHz /24Bit
    Optical mode: 44.1kHz - 192kHz /24Bit
     
    Power Requirement
     Version 1: 100-120V  AC 50/60 Hz
    Version 2:  220-240V  AC 50/60 Hz
     
    Power Consumption
    48W
     
    Package Weight
    Approximately 15KG
     

    Dimensions
     
    W430 X L430 X H93 (MM, Fully aluminium ) 
    Accessories
    AC power cord     X1
    USB cable   X1
     

    Custom order options:

    Option 1:Custom order Neutrik AES replace IN2 RCA.
         

    Option 2:Custom order replace the ACSS output by RCA outputs .
         

    Option 3:Custom order different define of the I2S pins .
         (Customer must provide detail pin 
    definitions)

    Option 4:Custom order HDMI replace IN5 RJ45 input .
         (Customer must provide detail pin 
    definitions, otherwise we will build with our standard definitions .)

    Option 5:Custom order HDMI or RJ45 replace IN6 USB input .
         (Customer must provide detail pin 
    definitions, otherwise we will build with our standard definitions .)

    Option 6:Custom order HDMI replace IN2 RCA or IN1 BNC input .
         (Customer must provide detail pin 
    definitions, otherwise we will build with our standard definitions .)

    Option 7:Custom order RJ45 replace IN2 RCA or IN1 BNC input .
         (Customer must provide detail pin 
    definitions, otherwise we will build with our standard definitions.)

          Multi-ply custom orders had max 3 workdays leadtime.
          Customer can send email to  audio-gd@vip.163.com ask for the private custom option .

     

     

    Last Updated @ 1/8/2018 7:37:29 PM


      Buy with confidencewe have 908 Good Ratings from buyers !

    BuyerItem IDDateRatings
    su**** 192272629 5/17/2018 4:20:00 PM Fast delivery. Thumbs up!
    dr**** 202015630 5/8/2018 8:37:00 PM -
    bl**** 195704728 5/4/2018 9:47:00 PM -
    bl**** 195656612 5/4/2018 9:45:00 PM -
    lo**** 201449836 4/27/2018 9:33:00 PM Very good and friendly seller with much variety of item! Must visit their shop for superb environment and food.
    dr**** 201776746 4/21/2018 6:10:00 PM -
    ma**** 202370144 4/20/2018 2:19:00 PM Excellent seller.Wide variety of products  Responsive to question.Very fast delivery.Hope you sell aplenty
    xs**** 198582640 4/19/2018 5:28:00 PM Very responsive. Overall good buying experience. Excellent.





    Questions & Comments

    Questions & Answers   Ask Seller


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    If you wish to use paypal, please kindly contact us for further arrangement.
    *Additional service fee charge incur will be bear by customers who utilize paypal.


    Purchase via Shop:
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    Credit card payment is accepted (Visa, Master, American Express, Diners Club)

    Purchase via COD:
    COD via courier service Ta-q-bin is available. You can either pay by cash or credit card. Charges varies on different purchase. Please contact us for further arrangement.

    Ta-q-bin coverage area: Klang Valley, Cyberjaya, Putrajaya, Penang, Ipoh**, Melaka Town **,Johor Bahru, Kulai, Senai, Pekan Nanas and Pasir Gudang.

    (refer enclosed Taqbin Zipcode Master at Ta-q-bin website).

    All price quoted is including shipping charges and tax except those specially mentioned.
    Ready stock will be sent by Pos Laju or Gdex within 24 business hours.
    For non ready stock, delivery time varies from 3-5 or 7-10 days to your door step. Please kindly check with us.
    We are using GLE logistic for foreign stock at the moment.
    Tracking number will be given to customers after the parcel reach Malaysia. For any logistic updates, customers can check at the given courier website.

    Delivery of products (Postage or Pre-order)

    1. All customers who request to have the products being delivered by postage are required to make a full payment to us. Payment can be made by depositing to our company account, or payment via paypal.
    2. Any additional charges incur by the payment portal (eg: paypal 3.8%) will be bear by customers.
    3. Customers who pre-order are required to pay a deposit of 50% of the purchase price. Deposit will be forfeited due to cancellation of the order by customers.
    4. Customers who pre-order are required to complete the payment within 7 days after the parcel arrive in Malaysia unless longer time frame is agreed before the purchase.
    5. Customers who COD can make payment by cash or credit card when receiving products from Ta-q-bin.

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    We guarantee that all the items we carry are authentic and brand new. If in any doubt, please send the purchased item to that respective brand's boutique in your country to verify.

    Warranty Period

    1. All products purchased from Stars Picker Enterprise are warranted under different terms and for different warranty periods as offered by the specific manufacturer or distributor.
    2. The warranty period begins to run as of the date when customers receive the product.

      Coverage of the Warranty

      1. The buyer is entitled to claim for warranty for damage to the product in transit, defect in workmanship of the product, delivery of a wrong item of product, or any other damage caused by reasons other than fault of the consumer, and all cost and expenses incurred for the shipment of the product will be borne by us.
      2. The warranty does not cover damage caused by human factors, accident, misuse of the product, unauthorized alternation to or change of parts or components of the product, act of God or problems of power supply.
      3. No warranty is offered for products which have gone beyond the period of warranty. We can arrange to send back the products for repair but any cost incur will be bear by customers.
      4. No warranty is offered if the warranty label on the product is altered or damaged.

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