Yulong DA10 AK4497 768KHz DSD512 DAC Single-end/Balanced Headphone Amplifier

Yulong DA10 AK4497 768KHz DSD512 DAC Single-end/Balanced Headphone Amplifier

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$1,140.00 $1,200.00
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Features:

  1. De-jitter process powered by our proprietary FPGA based DSP, FIFO buffer, PLL clock with a Femto crystal.
  2. Fully balanced, low impedance output DAC that supports PCM768 KHz and DSD 512.
  3. Fully balanced high current preamplifier with analogue volume control that is bypassed in Pure DAC mode.
  4. Full discrete and balanced, JFET input, DC coupled Class A headphone amplifier.
  5. AK4497 DAC with 1.7nV low noise regulator at reference voltage and analogue supply.
  6. Plitron 50VA toroidal transformer.
  7. Highly user customizable digital filter.
  8. Customizable sound mode.
  9. IPS wide angle display
  10. 99 steps volume control for headphones with different impedance and sensitivity.
  11. Elegant and sturdy aluminum housing. Unique claw-style suspension feet.
  12. 110 - 240V mains power.
  13. Our custom programmed FPGA receives and recovers digital audio signal from SPDIF, Optical and AES inputs, and support Dop64 and Dop128, PCM 16-24bit, 32-384KHz from these inputs.
  14. USB supports DoP64, DoP128, Native DSD64-512 and PCM 16-32bit, 32-768KHz
  15. Digital audio signal from all inputs is de-jittered by a FIFO buffer before decoding.
  16. Supports platforms such as MS Windows, MAC OS, iOS, Android and Linux.

 

DA10, the latest flagship all-in-one DAC/Preamplifier/Headphone from Yulong roots and excels in our previous products based on the AK4497 chipset, backed by the skill and expertise from 15 years in R&D in analogue and digital audio solutions. It bears the latest implements from Yulong such as a powerful FPGA, FIFO digital signal buffer, PLL clock featuring Femto crystal to name a few.

The core in DA10’s digital signal process is a proprietary FPGA that was developed after many years in research. Digital signal is shaped, FIFO buffered and synchronized by the FPGA paring with a low noise Femtosecond clock generator and a PLL circuit. The de-jittered signal is then sent to AK4497 for decoding. Sophisticated FPGA resource allocation, I/O configurations and well thought PCB layout brought the digital signal quality to a very high level.

 

LPF stage features ultra low distortion OPAMP OPA1611 and OPA1612, and followed by a high current low distortion OPA1622 output buffer. The output level is controlled by PGA2311 when used in Preamp and Headphone amp mode. A Plitron toroidal transformer rated at 50VA provides superior energy conversion to the DA10 through a total of 23 low noise regulators.

 

The latest XMOS XU208 in the USB input brings support to DSD 512 and PCM768 KHz. Customized Theyscon driver brings their well-known sound quality and stability. 

 

The four channels of headphone amplifier in DA10is loaded with features.It has a dedicated power supply circuit.The amplification is class A, fully discrete, JFET input, constant current biased, heat coupled compensated, carefully bias adjusted and high current outputs by MJD243/253. Working condition was optimized by analyzing the temperature properties by the aid of a thermal imager, which results in exceptional driving capability and natural sounding.

 

Unique sound modes are selectable to fit your taste of listening. Mode 1 is balanced; and mode 2 is delicate and firm which might be preferred for classical music; mode 3 is laid back with stronger voice presence which might be beneficial to jazz vocal and similar.

 

Working together with 3 filter modes, you might find lots of interesting combinations to bring your favorite music to a brand new level of enjoyment.

 

Note: SSLOW mode reduces the high frequency by a large margin and makes performance measurement such as frequency response and distortion significantly worse than the published number. This mode is mainly for experiment purpose.

 

Yulong is well known for the effort in fine tuning the sound. A group of experienced users including music producers, acoustic engineers, recording/mastering studio engineers and audiophiles spent their time in listening and benchmarking in very different environment and equipment and collaborated in the development to make DA10 not only measures exceptional but more importantly, sounds stunningly musical.

 

Notes to output level:

DA10 outputs 2V RMS for single ended and 4V RMS for balanced line levels that is commonly seen in consumer market. These levels are equivalent to about +8dBu and +14dBu which is lower than some professional gears that has hotter outputs such as +18dBu or 6.15V RMS, +20dBu or 7.75V RMS, or +24dBu or 12.28V RMS. Level matching is recommended when comparing between different equipment, as LOUDNESS often sounds better for audiences even the professionals.

 

Technical Specifications

●   DoP64 and DoP128 support over SPDIF/Optical/AES.

●   PCM 384KHz 24bit over SPDIF/Optical/AES.

●   DoP64, DoP128, Native DSD64/128/256 /512and PCM 16-32bit, 32-768KHz over USB.

●   SNR: -130dB.

●   Dynamic Range:  125dB.

●   THD+N: 0.0003%.

●   Frequency Response: 20-30KHz-0.15dB.

●   Crosstalk < -120dB.

●   Balanced Output level: 4.2V.

●   Single-end headphone amp 600ohm:110mW  300ohm:230mW  150 ohm:460mW  32 ohm:2W

●   Balanced headphone amp 600 ohm:230mW  300 ohm:460mW  150 ohm:930mW  32 ohm:3W

●   Headphone output THD+N< 0.001% at full power.

●   Power consumption: <30W.

●   Size: 248*210*60mm.

●   Weight: 4Kg.

Features:

  1. De-jitter process powered by our proprietary FPGA based DSP, FIFO buffer, PLL clock with a Femto crystal.
  2. Fully balanced, low impedance output DAC that supports PCM768 KHz and DSD 512.
  3. Fully balanced high current preamplifier with analogue volume control that is bypassed in Pure DAC mode.
  4. Full discrete and balanced, JFET input, DC coupled Class A headphone amplifier.
  5. AK4497 DAC with 1.7nV low noise regulator at reference voltage and analogue supply.
  6. Plitron 50VA toroidal transformer.
  7. Highly user customizable digital filter.
  8. Customizable sound mode.
  9. IPS wide angle display
  10. 99 steps volume control for headphones with different impedance and sensitivity.
  11. Elegant and sturdy aluminum housing. Unique claw-style suspension feet.
  12. 110 - 240V mains power.
  13. Our custom programmed FPGA receives and recovers digital audio signal from SPDIF, Optical and AES inputs, and support Dop64 and Dop128, PCM 16-24bit, 32-384KHz from these inputs.
  14. USB supports DoP64, DoP128, Native DSD64-512 and PCM 16-32bit, 32-768KHz
  15. Digital audio signal from all inputs is de-jittered by a FIFO buffer before decoding.
  16. Supports platforms such as MS Windows, MAC OS, iOS, Android and Linux.

 

DA10, the latest flagship all-in-one DAC/Preamplifier/Headphone from Yulong roots and excels in our previous products based on the AK4497 chipset, backed by the skill and expertise from 15 years in R&D in analogue and digital audio solutions. It bears the latest implements from Yulong such as a powerful FPGA, FIFO digital signal buffer, PLL clock featuring Femto crystal to name a few.

The core in DA10’s digital signal process is a proprietary FPGA that was developed after many years in research. Digital signal is shaped, FIFO buffered and synchronized by the FPGA paring with a low noise Femtosecond clock generator and a PLL circuit. The de-jittered signal is then sent to AK4497 for decoding. Sophisticated FPGA resource allocation, I/O configurations and well thought PCB layout brought the digital signal quality to a very high level.

 

LPF stage features ultra low distortion OPAMP OPA1611 and OPA1612, and followed by a high current low distortion OPA1622 output buffer. The output level is controlled by PGA2311 when used in Preamp and Headphone amp mode. A Plitron toroidal transformer rated at 50VA provides superior energy conversion to the DA10 through a total of 23 low noise regulators.

 

The latest XMOS XU208 in the USB input brings support to DSD 512 and PCM768 KHz. Customized Theyscon driver brings their well-known sound quality and stability. 

 

The four channels of headphone amplifier in DA10is loaded with features.It has a dedicated power supply circuit.The amplification is class A, fully discrete, JFET input, constant current biased, heat coupled compensated, carefully bias adjusted and high current outputs by MJD243/253. Working condition was optimized by analyzing the temperature properties by the aid of a thermal imager, which results in exceptional driving capability and natural sounding.

 

Unique sound modes are selectable to fit your taste of listening. Mode 1 is balanced; and mode 2 is delicate and firm which might be preferred for classical music; mode 3 is laid back with stronger voice presence which might be beneficial to jazz vocal and similar.

 

Working together with 3 filter modes, you might find lots of interesting combinations to bring your favorite music to a brand new level of enjoyment.

 

Note: SSLOW mode reduces the high frequency by a large margin and makes performance measurement such as frequency response and distortion significantly worse than the published number. This mode is mainly for experiment purpose.

 

Yulong is well known for the effort in fine tuning the sound. A group of experienced users including music producers, acoustic engineers, recording/mastering studio engineers and audiophiles spent their time in listening and benchmarking in very different environment and equipment and collaborated in the development to make DA10 not only measures exceptional but more importantly, sounds stunningly musical.

 

Notes to output level:

DA10 outputs 2V RMS for single ended and 4V RMS for balanced line levels that is commonly seen in consumer market. These levels are equivalent to about +8dBu and +14dBu which is lower than some professional gears that has hotter outputs such as +18dBu or 6.15V RMS, +20dBu or 7.75V RMS, or +24dBu or 12.28V RMS. Level matching is recommended when comparing between different equipment, as LOUDNESS often sounds better for audiences even the professionals.

 

Technical Specifications

●   DoP64 and DoP128 support over SPDIF/Optical/AES.

●   PCM 384KHz 24bit over SPDIF/Optical/AES.

●   DoP64, DoP128, Native DSD64/128/256 /512and PCM 16-32bit, 32-768KHz over USB.

●   SNR: -130dB.

●   Dynamic Range:  125dB.

●   THD+N: 0.0003%.

●   Frequency Response: 20-30KHz-0.15dB.

●   Crosstalk < -120dB.

●   Balanced Output level: 4.2V.

●   Single-end headphone amp 600ohm:110mW  300ohm:230mW  150 ohm:460mW  32 ohm:2W

●   Balanced headphone amp 600 ohm:230mW  300 ohm:460mW  150 ohm:930mW  32 ohm:3W

●   Headphone output THD+N< 0.001% at full power.

●   Power consumption: <30W.

●   Size: 248*210*60mm.

●   Weight: 4Kg.

Shipping Fees

Worldwide Free Shipping on SHENZHENAUDIO, Please allow 1-3 business days for conduct Quality Control in order to ensure the products quality.

In the event that a shipment is refused delivery by the recipient, is undeliverable, or is returned to sender, SHENZHENAUDIO will process a refund to the original payment method used.

If a customer would like the order reshipped, they’ll be charged a reshipment fee. Customers may also be subject to a restocking fee of up to 20 percent of the product cost.



Which Couriers To Use?

Given the amount of shipping partners we work with and the vast coverage area we serve, there are likely regions with much longer transit times than others. If you have any feedback, suggestions, or problems with the courier of your shipment, please feel free to submit a support ticket via the "Contact Us" button below.

Our goal is to provide our customers with the best shipping experience possible at a reasonable cost. This is why we constantly negotiate with existing shipping partners for lower rates and actively test new couriers for potential opportunities.



PO boxes or APO/FPO

The ability to ship to PO boxes or an APO/FPO address depends on the item's weight. If an item weighs more than 9 pounds, we won’t be able to ship to these addresses because of our current courier agreements.

To determine if your order is eligible for shipment to PO boxes or an APO/FPO address, please contact SHENZHENAUDIO Support.



Estimated Delivery Time

For customers in the continental United States:
5 to 14 business days from the date of shipping

For customers in Hawaii and Puerto Rico:
2 to 4 weeks from the date of shipping
International customers can expect longer shipping times, depending on the country in which they live:

Canada: 1 to 3 weeks from the date of shipping
Australia, New Zealand, Germany, France, and the UK: 2 to 4 weeks from the date of shipping
Other countries not listed above: 3 to 6 weeks from the date of shipping

Please keep in mind that these are rough estimates and shipments can be delayed due to unforeseen circumstances, like postal strikes or severe weather.

If, for some reason, you don’t receive your order within the estimated time frame provided above and suspect that it might be lost in transit, please submit a support ticket from your transactions page and we can look into the order with the courier. Lost-in-transit requests must be submitted to SHENZHENAUDIO Support within 4 months of the date of shipping or before the courier archives the tracking information.



Easy 30-Day Return Policy

If you are dissatisfied with your purchase for any reason, you may return it to SHENZHENAUDIO within 30 days of the received date, subject to the conditions and exclusions below.



Eligibility Conditions

Please read conditions below. If all conditions are not met, SHENZHENAUDIO reserves the right to refuse the return. All returned items must be in new condition, in their original unaltered box (including an intact UPC code) and must include all packing material, blank warranty cards, manuals and accessories. SHENZHENAUDIO can only refund the original purchase price. Shipping and handling fees are nonrefundable.



Defective or Damaged Items

Defective items may be repaired, exchanged or refunded at our discretion for the same model or manufacturer's equivalent model.



Exchanges

Depending on where you live, the time it may take for your exchanged product to reach you, may vary. Please allow 3-5 business days for mail-in exchanges to be processed.



Refunds & Credits

Once we receive and inspect your item(s), we will credit your account. Please allow 5-7 days for a credit to appear on your account. In most cases, we will issue your refund in the same way you made the original purchase. Please note: we can only refund the original purchase price. Shipping and handling fees are nonrefundable.

You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.



Shipping

To return your product, you should mail your product to: Rm306, Block A, ChengShiShanHai Center, ZhongXing Road ,Bantian Street, LongGang Zone, Shenzhen, Guangdong, China

If you’ve done all of this and you still have not received your refund yet, please contact us at support@shenzhenaudio.com.