Author Topic: Gustard Latest X20Pro/A20H (E9028Pro, AK4497) DAC, ES9018 DAC, USB Interface  (Read 148 times)

Offline littlemart

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Gustard

Gustard DAC-X20Pro - Dual ES9028 Sabre (New Flagship model)



After the very successful X20 using the ES9018, Gustard has finally launch the DAC-X20pro with core chip uses the 2 pcs latest ES9028PRO (left and right channels for each one). Despite the launch of the ES9028pro, ES9018 was once the flagship DAC chip use in many High End DAC and audio products in the market are still very widely use. Gustard is one of the pioneer who has come out with High End DAC with ES9028Pro. But not many able to price them under USD1,000.

Production overview
- First use of adaptive technology and asynchronous master clock master clock technology.
- Two clock mode can be freely selected.
- Full interface supports DSD decoding. USB support DSD hardware solution,Coaxial Optical
- AES / EBU support DOP decoding, which can be accessed several
- Broadcast SACD listening to music.
- Full interface supports 24Bit 192khz (USB 32B 384K).
- Using CPLD programmable logic device. MESNAC ES9018.
- 3-speed gain,volume can be adjusted,a total of 100 stalls adjustable
- Volume attenuation from 0 to -99DB.
- USB sub card using XMOS program, PCM up to 32B 384khz, DSD up to DSD256.
- Six kinds of input methods:IIS fiber`BNC coaxial port`
- AES/EBU`USB,through the key switch.
- Adopt TFT LCD display,adjustable contrast
- Power supply with two O-type transformers,digital and analog independent power supply, And the use of discrete components regulation.
- Fully balanced analog line discrete components.Unbalanced RCA output simultaneously.
- Adopt more humane modular XMOS USB daughter card.
- Analog circuit use High-end discrete lines.

Selling at: $1300 $1250 (Promo)

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Gustard DAC A20H - Dual AK4497 (New Flagship model)



GUSTARD recently announced a new DAC-- A20H, It is the successor of X20 DAC, Gustard have researched DAC for years and developed some good products in very good reputation. A20H is based on dual AK4497 DAC chips which is the latest flagship product from AKM, The DAC is specially optimized for better performance and sound presentation. LPF section is constructed with discrete components at class A working status,It is the biggest advantage than the other DACs on market,The transistors in LPF are matched for original sound.

GUSTARD A20H premium dual AK4497 DSD DAC D/A converter with XMOS asynchronous USB, Original fully balanced circuit from DA to amplifier without any conversion,With unbalanced output and balanced output,Integrated high performance headphone amplifier

Selling at: $1300  $1250 (Promo)

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Gustard DAC-X20 - Dual ES9018 Sabre - Flagship model



- Dual ESS Technology Sabre Reference 32bit ES9018 DAC chip,R and L sound Chanel one on each side
- Automatic adaptation master clock technology and Asynchronous master clock technology Two clock mode can be freely selected.
- XMOS 32bit USB receiver chip which is best performance asynchronous USB audio solution.
- CPLD programmable logic device. Soft control ES9018.
- Three files gain, volume can be adjusted. Attenuation adjustable from 0 to -99DB.
- TFT LCD screen, adjustable contrast.
- Power supply with two O-type transformers, Digital and Analog independent power supply, and use Discrete Components regulation Voltage
   stabilization.
- Full balance Discrete components Analog Line. Balance / RCA output simultaneously.
- Digital Input: balanced Spdif AES/EBU port, RCA, Toslink Optical input and USB,(Key switch)
- Come with Remote controller

Selling at X20u: $1250 $1150
         
(Cheapest in the market. Rather i say it perform better than other more high end DSD Sabre DAC in the market, put it this way is that the price you are paying for such quality and performance, is something you should consider.)

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Gustard DAC-X12 - ES9018 Sabre



- Digital Input: balanced Spdif AES/EBU port, RCA, Toslink Optical input, USB and IIS support DOP decoding, can be accessed by the number of broadcast SACD listening to music.
- Analog Output: balanced analog output via XLR port, single ended output via RCA port
- EESS Technology ES9018 Sabre Reference 32bit chip
 - USB 2.0 interface allows asynchronous playback 1BIT / 2.8224MHz or 5.6448MHz DSD digital signal sampling rate. That is
    support DSD64 and DSD128. Coaxial Optical AES / EBU support DOP64, SACD playback can be accessed by the number of
    broadcast music.
- Maximum support 384KHZ / 32Bit, DSD USB
- DAC Support sample 24bit 192k

Selling at: $735 $680

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Gustard DAC-X9 - Dual WM8741


- Digital Input: balanced Spdif AES/EBU port, RCA, Toslink Optical input and USB
- Analog Output: balanced analog output via XLR port, single ended output via RCA port
- Dual WM8741
- USB 2.0 interface for asynchronous playback 1BIT / 2.8224MHz sampling rate of DSD digital signal also is DSD64
   Maximum support 384KHZ / 32Bit, DSD USB
- DAC Support sample 24bit 192k

Selling at: $525

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Gustard H10 High End Class A Headphone Amplifier



Class A headphone amplifier with high current current output. For each channel in the amp it has 2 independent amplification circuit. The H10 features two independent amplification circuits for the left and right channels, four gain switches, two RCA inputs, and two balanced XLR inputs.
There are 4 pre-buffer adjustment functions  build in with the amplfier and that mean the amplifier using pre-stage buffer and main amplifier components. By using 4 paris audio power tube output circuit, the H10 could easily drive variety of different impedance headphones.
The Gustard H10 built in with 2pcs 25W transformer and they correspond left and right channels power supply and highly reduce the channel crosstalk.
Selling at:
a) $525

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Gustard XMOS U12 USB Interface


USB Interfaces not only provide just the various interface for connection to DAC, it is also a high Performance device to reduce the jitter to the minimum. It is often encourage to go through them before to a DAC. Not even a Asyn DAC can reduce much jitter as much as an USB Interface does

- DSD support 128, PCM supports 384K
- wo 0.1PPM precision crystal 45.1584M 49.1520M
- International voltage AC115V-230V, the need to manually adjust
- XMOS-U8 chip, support 32BIT/500MIPS digital signal processing unit
- Input :USB input x1
- A total of four kinds of output: Coaxial (RCA), optical fiber, AES / EBU, IIS (HDMI port)
  Coaxial fiber AES / EBU output formats IEC60958 and AES3-r2009 standard limits the maximum support 24Bit / 192kHz; IIS
  can transmit 32B 384K

Selling at:  $225
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