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Audio-gd DAC 19 (2016) Single Ended DAC (PCM1704)

RM 3,999.00
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Item Specification
  • Report
  • Brand : Audio-GD
    Model / SKU : DAC-19
    Conditions : New

    Product Description


    Audio-gd DAC 19 (2016) Single Ended DAC (PCM1704)

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

    DAC-19 (2016)
    Release at 12th. Oct. 2016

    PCM1704UK & DSP built in
    32bit / 384K support Xmos U208
    Class A PSUs and  Class A analog amps design

    Price :  (Exclude shipping cost)
    USD810 (With HDMI input)

                       

             

          
     Summarize  Use Manual  Specs  Custom Option  Shipping Cost

    Xmos U8 Introduce and drivers download
    Amanero combo 384 Intruduce and driver download (For the unit with the Amanero Combo384 upgrade module)
    Audio-gd products had design and test based on the AP SYS-2722 (The top-drawer professional equipment in world) 


    About the DAC-19:
    The DAC-19 is our longest life products . 
    We have  released the first generation DAC-19 in 2005, DAC-19SE in 2006, DAC-19MK3 in 2008, DAC-19DSP in 2010 .
    Since 2010, the TI want to discontinued the PCM1704 chips , cause the price quite expensive , even sale USD150 / 2pcs in market.
    The DAC-19 ( 2016 ) is the best design of our single ended DACs, and it may the last edition of the DAC-19 because the PCM1704 cost is expensive . It had a lot improved than the older models.
    1,Its all parts had assemble on board made the sound more neutral and less coloration . ( except the USB module , the USB chip may upgrade every 3-5 years ,  so the module design allow users can  easy upgrade in future if had the higher performance USB chip release ) . 
    2, The newest DSP software design (same as the Master 7) had offer the best digital process performance , reproduce the best detail, dynamic and the sound stage . 
    3, The all signal parts had power supply by the class A PSUs .

    Summarize
    Multi-ply shield boards to isolation the power input socket , transformer, power supplies, digital part and the analog part .
    Fully Discrete design built by discrete analog stages without any OPA and coupling caps in the signal channels .
    Non- feedback ACSS analog output stage 
    Large R-core transformers and Hi-fi grade parts like DALE resistors, WIMA caps and OCC wires .
    A total of 5 groups class A parallel mode PSU power supply for all digital and analog circuits.
    4 digital inputs:   USB / Optical / Coaxial /HDMI 
    Support up to 384K / 32 BIT through USB 
    Best sound SPDIF interface chip DIR9001 built in .
    DAC output:   RCA / ACSS 

    Please note:
             We are design the DAC-19 ( 2016  ) only put the point on high sound quality reproduce , we have not design the mute design in it as our other low end products, because we have consider any mute design cause the sound quality degrade .   If the SPDIF sources ( only with some few  disc player models)  have design the SPDIF  output signal switch on while playback and switch off while  stop, the switch noise will reproduce by the DAC-19 ( 10th Anniversary Edition  ), the issue is had a click sound while the source start and stop play the music. 
             Fortunately most sources had not switch the SPDIF output signal and always had output signal while power on .    


    Technology detail

    Detail of the Current Conveyor Technology
     

    Simple and short signal transfer is best:     
                  The DAC-19 (2016) is a fully  discrete design. Applies the 2 Pieces Expensive high-end grade PCM1704UK which can support up to  32 Bit / 384KHz through USB / I2S input . The  SPDIF input support up to 96K / 24 BIT because we had applied the best sound SPDIF receiver DIR9001 .  
                  Different  to other PCM1704UK designs , we applied Non-feedback ACSS analog stages. The  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.
                  The ACSS circuit naturally working in current model and have design  current input , it can transfer the PCM1704UK current signal to output and implement the I/V conversion in current model in one ACSS amp . And this ACSS amp only have one current gain stage , the PCM1704UK 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 PCM1704UK .
                The output buffers are Non-feedback class A FET design.The output impedance only had 10 ohm .
     
    DSP-1 processor:
                DAC-19 (2016) has built in DSP processor, which is a Two-channel Digital Interpolation Filter and data in-phase processor for digital audio. This Device offers advanced features for high-performance digital signal processing (DSP) applications up to 250-MHz. Data and Master-clock in-phase processing are without jitters. So DAC-19 (2016)
     can offer a clear and focused soundstage, apart from accurate and neutral reproduction of the recorded disc/music.

    Power supply:
                DAC-19 (2016) applies the excellent 2 pcs PCM1704UK 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 normal 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 or amp stages, but with plenteous dedicated DC supply circuits. 
                The DAC-19 (2016) had total  Uses 5 groups of high-quality class A parallel connection PSU with dedicated DC supply double-stage PSU, 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.
                 The class A parallel connection PSU has very high input impedance to avoid pulse through the PSU from affecting the DAC and low output impedance with very fast speed and high linearity, so it is a very clean power supply. In my experience, its sound is better than battery power supply, better human sound and neutral.
            Diagram of the  Class A PSUs for analogy parts      Diagram of the Class A   PSUs for digital parts
                                  

    Built in Hi-End grade parts :
             
    DAC-19 (2016) 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 .


    DSP Device Characteristics
     

    Devices Characteristics:
    Two-channel Digital Interpolation Filter and data in-phase processor for digital audio.
    208-pin PQFP package, Manufactured on 300-mm wafers using, 90-nm low-k dielectric process. Devices offer advanced features for high-performance digital signal processing (DSP) applications with up to 250-MHz.
    Data and Master-clock in-phase processing just without jitters.

    Filter Configuration:
    Core power supply voltage: 1.2V.
    I/O power supply voltage: 3.3V.
    Programmable Functions: hardware control mode.
    Three-stage linear-phase ( group delay distortion : Zero)  FIR filter configuration.

    Filter Characteristics: 
    Stopband Attenuation: –50dB / -90DB / -130DB.
    Passband: 0~0.4535Fs.
    Passband Ripple: within ±0.00001dB.

     Input/Output:
    Input Data Formats: I2S
    Input Word Length: 16, 20, 24, and 32 Bits
    Output Word Length: 16, 20, 24, and 32 Bits
    Output Data Formats: MSB-First, Binary Two’s Complement
    Sampling Frequency: 44.1kHz to 192kHz
      
    Master-Clock:
    Clock Autodivide Circuit Supports four Master-Clock Frequencies : 256Fs、384Fs、512Fs、768Fs
    Built-in two groups high performance PLL , supports low jitter Master-Clock output.



         Transition Characteristics(-50dB)

         Passband Characteristics(-50dB)


        Transition Characteristics(-90dB)



          Passband Characteristics(-90dB)

    Transition Characteristics(-130dB)

    Passband Characteristics(-130dB)

     

    Use Manual:

    Power button: 
    Power ON/Off the DAC.

    Setting button: 
    Select the phase of output signal  , pull off for the normal output, push into for invert output .

    Selector button:
    Select the input sources.   1: USB input. 2: HDMI . 3: C
    oaxial  input. 4 :  Optical input. (Please note : The version without HDMI, select both 2 and 3 are the coaxial input.)

    DSP-1 Jumpers setting

     

    The product shipped before 12th. Oct. 2016

    Jumpers Number Setting Functions describing

    Jumper1  PLLEN

    Active (OFF)

    Bypass (ON)

    PLL setting

    Jumper6 DITH

    Active (OFF)

    Inactive(ON)

    Data Dithering

         Sound Flavor :          Neutral <------------------------------------------------>Warm
    ATT0 (OFF) ATT0 (OFF) ATT0 (ON) ATT0 (OFF) ATT0 (OFF) ATT0 (ON)
    ATT1 (OFF) ATT1 (ON) ATT1 (ON) ATT1 (OFF) ATT1 (ON) ATT1 (ON)
    IPS0 (OFF) IPS0 (OFF) IPS0 (OFF) IPS0 (ON) IPS0 (ON) IPS0 (ON)

     

    The product shipped since 12th. Oct. 2016

    Jumpers Number Setting Functions describing

    PLLEN

    Active (OFF)

    Bypass (ON)

    PLL setting

    DITH

    Active (OFF)

    Inactive(ON)

    Data Dithering

       8X overampling 4X overampling 2X overampling NOS The sound will become smoother and warmer while setting lower oversampling.
    IPS0  (OFF)  (ON)  (OFF)  (ON)
    IPS1  (OFF)  (OFF)  (ON)  (ON)


    Note:     ON mean the jumper push on. 
                  OFF mean the jumper pull off.


    Specifications might subject to change without prior notice for product improvement.
    S/N Ratio
    >108DB

    Output impedance
    10 ohm

    Output Level
    2.5V (RCA)
    2MA (ACSS)
    Input Sensitivity
    0.5 Vp-p(75 Ohms, Coaxial)
    19 dBm (Optical)
    USB1.0 / 1.1 / 2.0 / 3.0 (The USB speed lower than 2.0, support up to 96K )
    Frequency Response
    20Hz - 20KHz (< - 0.5DB)

    Support Operate Systems (USB)


    Windows , OSX 

    Support Sampling  
     USB and I2S modes: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz , 192kHz, 352.8kHz, 384kHz
     Coaxial and Optical mode: 44.1kHz, 48kHz, 88.2kHz, 96kHz
    Power Requirement
     Version 1: 100-130V  AC 50/60 Hz
    Version 2:  220-240V  AC 50/60 Hz
    Power Consumption
    16W
    Package Weight
    Approximately 5KG

    Dimensions
    W240 X L320 X H80 (MM, Fully aluminium ) 
    Accessories
    AC power cord            X1
    USB cable                X1

    Custom order options:

    1, Custom order two pair RCA outputs:
          If customers don't want ACSS output , it can be replaced by RCA output.


    2
    Upgrade to the Amanero combo384 USB module:
        
     Upgrade to the Amanero combo384 USB module for replace the USB32( Choice this upgrade option, customer don't want upgrade the TCXO for the USB ).
     

     

    Last Updated @ 7/15/2017 3:37:10 PM


      Buy with confidencewe have 908 Good Ratings from buyers !

    BuyerItem IDDateRatings
    ze**** 197277498 5/24/2018 8:09:00 PM Received item as advertised. Delivery was fast. You have to find out suitable program to use on your pc for playlist creation and export.
    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





    Questions & Comments

    Questions & Answers   Ask Seller


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    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).

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    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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