Carefully designed and manufactured by ShenZhen YuLong Electronics Co. Ltd., the D100 is a high-precision audio decoder. Thanks to it’s plenty interface, excellent performance and small size, it is very convenience to integrate into your Hi-Fi system.
Inputs:
The digital input includes Optical, S/PDIF and AES/EBU, which can connect to most of the equipments with PCM digital audio signal up to 24bit/192KHZ, such as CD, DVD or sound card.
By selecting USB mode by pushing the INPUT button on the front panel, this DAC can be used as a USB sound card, and supports WINDOWS 7, VISTA, XP, MAS OS and LINUX.
Outputs:
The unbalanced RCA coaxial line level output and the balanced line level XLR output on the back panel can connect to amplifiers or active speakers. And the Headphone output on the front panel can connect to headphones with impedance from 16 to 600 Ohms.
WARNING!!!! Both of the RCA and XLR line level outputs are NOT controlled by the Volume knob on front panel, and as always in full output level. Any equipment connected to these outputs must has a proper volume control, otherwise might be damaged. It might harm the hearing of audience too. We are not responsible for any kind of such results.
The Features:
● Sophisticated design, adequate test and leading test equipments ensure outstanding result: THD+N<0.0005%, -130dB idle noise and up to 120dB SNR.
● By implementation of ASRC, we have achieved an excellent anti-jitter performance. The input digital audio signal is ASRC processed to 132KHZ with reference to a custom made, 1ppm precision and low phase noise clock source. The output is an extremely low jitter I2S signal to feed into the DAC chip. That results in a very precision digital to analog convert process and not sensitive to input signal quality. So a stable result is maintained within different of front end equipment. In our test, when the input digital signal is added 80ns of jitter, this DAC can produce almost same performance as when there is no jitter added, while another DAC in comparison which is not implemented with ASRC already lost the lock to the signal and cannot work.
● Carefully designed analog circuits, together with the long time listening compared components, bring to the neutral and fine textured sound quality. In general, the DAC is high resolution, extended dynamic and with an extensive sound p_w_picpath.
● The USB input is feed toTAS1020B, a chip with high reputation from Ti, which is widely used in Hi-end equipments for USB solution. The I2S signal from this chip is sent for ASRC then DAC. Thus an equivalent result from USB is achieved, as S/PDIF, Optical or AES/EBU inputs: The THD+N <0.0005%.
● This DAC carries a high performance headphone amplifier, and sound style is selectable by pressing the Sound button on the front panel. The default style Mode 1 is natural and dynamic. Switching to Mode 2 will result in a smooth style, which is suitable for bright headphones, or if you prefer more “dark and smooth” sound.
● Two headphone outputs with different impedance: LOW is suitable for headphones with low impedance and high sensitivity such as in ear monitor; while HIGH fits most of bigger headphones. You can also try to get a different sound style by using a same headphone in different outputs.
● Easy operation: Most likely you only need to access the MODE button on the front panel. The last used input channel is stored automatically and will resume when power up. So plug and play your music.
● High quality aluminum housing, custom made gold plated connectors result in a flawless operation, a robust connection and a superior reliability.
● Whether you anywhere: You can select 110/120V or 220/240 operating voltage.
The structure is as follows:
The development course:
Based on the specifications of all kinds of the testing instruments,after seven times of correcting,sample making and trial production, YuLong Electronics designed and completed the D100 with high performance index.In order to get the best results of the sound that is easy to be widely accepted,we used a lot of high-quality components to debug frequently, test repeatedly and optimize step by step.
All the components and the craft we used must meet that the sound performance should be the most appropriate and the property should be the best.For example,the potentionmeter of 09 type,we have bought dozens of samples,finally we choose the ALPHA that its feel and balance are the best.The transformer we used is the Plitron brand from Canada.Each of the components has gone through dozens of adjusting, testing and audition before we decide to use it.
The diagram of using:
Operating instructions:
1 LCD display, shows the input, output as well as the sound mode
2 Input selection: Press to select input from Optical, S/PDIF, AES/EBU and USB.
3 Sound mode selector: Mode 1 is default setting, and switch to Mode 2 by a double press.
4 LOW Headphone output: To connect low impedance and high sensitivity headphones.
5 HIGH headphone output: To connect a normal high impedance headphone
6 Volume control: To control the level of headphone out.
Warning! Please set volume to minimum before connecting a headphone, to avoid damage your headphone as well as your hearing!
7 Unbalanced Analog Audio Output, to connect a headphone amplifier to drive headphone, or a power amplifier to drive the speakers.
8 Balanced Analog Audio Output, to connect amplifiers or other equipments with balanced inputs.
9 S/PDIF Input, to connect digital source with an unbalanced output, such as CD, DVD, DAT or sound card.
10 Optical Input, to connect digital source with an Optical output, such as CD, DVD, DAT or sound card.
11 AES/EBU Digital Input, to connect digital source with a balanced output.
12 USB Input, to connect to a USB socket on a computer
Warning: Connect this DAC via an USB HUB, or via USB interface on the front panel of a desktop computer, might seriously degrade the sound quality, due to more interference!!!
13 Voltage selector: Use a tool to select suitable voltage.
Voltage can be set to 110-120V, and 220-240V, 50 or 60HZ.
Warning! Please make sure the voltage selector is set to proper position that is match the actual power supply voltage. Otherwise this DAC might be permanently damaged! Under such circumstance, the warranty is void.
14 Fused Power socket. There is a spare fuse in it that can be used when necessary
Connect to PC via USB: connect this DAC to a USB port of a PC via a USB cable, and the PC will automatically recognize it as a USB sound card. You may need to set the output sound device in your playback software manually. Then select USB input from the DAC’s front panel. Then start enjoying the music.
We recommend setting the output format to 24Bit/96KHz in the playback software for better result.
To connect other inputs: Connect the devices via a proper cable, and select the corresponding inputs from the Input button on the front panel of this DAC.
D100 Technical Specifications:
•Inputs: Optical, Coaxial, USB, AES/EBU
•Input digital signal format: 32-192 KHz, 16/24 Bit auto detection. USB supports up to 24Bit 96KHz
•SNR: >120dB.
•Dynamic Range: 115dB.
•THD+N: <0.0005% at 1KHZ
•Frequency response: 20-20KHz-0.16dB.
•ower consumption: <20W.
•Headphone output power: 130mW at 300Ohm, and 900mW at 32Ohm
Chassis to connect AC ground test
•Dimensions: 250*180*50mm.
•Net Weight: 1.5Kg
•acking Size: 300 * 300 * 100mm
Include in the packaging: This DAC, user manual, USB cable. Power cable
Note: One year free warranty. The warranty is void, if the DAC is opened not by us. |