1. ઉત્પાદન ઓવરview
The Gustard DAC-R26 II is a high-performance R2R Streamer Digital-to-Analog Converter designed for audiophiles and professional audio setups. It features a fully discrete 26-bit R-2R resistor ladder network, supporting high-resolution audio formats up to DSD2048 and PCM 32-bit/768kHz. This device integrates advanced streaming capabilities, a high-precision clock, and a custom Class-A LPF circuit to deliver natural, detailed, and immersive sound reproduction.
છબી 1.1: આગળ view of the Gustard DAC-R26 II, showcasing its design and highlighting key features such as R2R architecture, 1-Bit DSD support, XMOS, Femto Clock, CPLD, GCLK-02, IIS, and Bluetooth 5.1.
2. સેટઅપ અને જોડાણો
2.1 અનપેકિંગ
પેકેજિંગમાંથી બધા ઘટકો કાળજીપૂર્વક દૂર કરો. ખાતરી કરો કે નીચેની વસ્તુઓ હાજર છે:
- Gustard DAC-R26 II Unit
- રીમોટ કંટ્રોલ
- Gustard Card (Warranty/Information)
- પાવર કોર્ડ
- યુએસબી કેબલ
2.2 પાવર કનેક્શન
Connect the provided power cord to the AC inlet on the rear panel of the DAC-R26 II and then to a suitable AC power outlet. The unit supports AC115V/230V 50/60Hz, with manual switching. Ensure the voltage switch is set correctly for your region before powering on.
2.3 ઇનપુટ/આઉટપુટ જોડાણો
The DAC-R26 II offers a comprehensive range of digital inputs and analog outputs for versatile connectivity:
- ડિજિટલ ઇનપુટ્સ: COAX, AES, OPT (Optical), USB, IIS (I2S), LAN (Ethernet for streaming), 10MHz Clock Input (BNC).
- એનાલોગ આઉટપુટ: RCA (unbalanced), XLR (balanced).
Connect your digital audio sources (e.g., computer, CD transport, network streamer) to the appropriate digital input ports. Connect the RCA or XLR analog outputs to your amplifier, preamplifier, or active speakers.
છબી 2.1: આંતરિક view highlighting the GCLK-02 clock module and power supply components, crucial for stable signal performance and overall audio quality.
3. ઓપરેશન
3.1 મૂળભૂત કામગીરી
After connecting the power and audio cables, press the power button on the front panel or use the remote control to turn on the unit. Use the input selector button on the front panel or remote to cycle through the available digital inputs (COAX, AES, OPT, USB, IIS, LAN, Bluetooth) until your desired source is selected. The display will indicate the active input and current audio format.
૩.૩ ઉચ્ચ-રીઝોલ્યુશન ઓડિયો પ્લેબેક
The DAC-R26 II supports a wide range of high-resolution audio formats:
- COAX/AES/OPT Input: PCM 16-24bit/44.1-192kHz; DSD DoP64.
- USB/Streamer Input: PCM 16-32bit/44.1-768kHz; DSD DoP64-DOP256; NATIVE DSD: DSD64-DSD512.
- IIS Input: PCM 16-32bit/44.1-1536kHz; NATIVE DSD: DSD64-DSD2048 (DSD2048: @ DSD direct mode).
For optimal DSD playback, utilize the DIRECT DSD mode via the IIS interface, which preserves the original bitstream integrity.
૪.૩ નેટવર્ક સ્ટ્રીમિંગ
Connect the DAC-R26 II to your local network via the LAN port. The device supports mainstream streaming protocols such as AirPlay, UPnP, Spotify, NAA, and Roon Bridge. For network bridge configuration, open a web browser on a device connected to the same network and navigate to http://r26.local.
Image 3.1: Illustration of the Network Bridge System, showing compatibility with various streaming services and the web રૂપરેખાંકન માટે ઈન્ટરફેસ.
૪.૩ બ્લૂટૂથ કનેક્ટિવિટી
The DAC-R26 II features Bluetooth 5.1 with support for LDAC, AAC, SBC, and aptX codecs, powered by a Qualcomm QCC5125 chip. To pair, select the Bluetooth input on the DAC, then search for 'Gustard DAC-R26 II' on your Bluetooth-enabled device and connect.
Image 3.2: Details on the XMOS XU216 USB interface supporting PCM768K and DSD512, alongside the Bluetooth 5.1 module with supported codecs.
4. જાળવણી
To ensure the longevity and optimal performance of your Gustard DAC-R26 II, follow these maintenance guidelines:
- સફાઈ: યુનિટના બાહ્ય ભાગને સાફ કરવા માટે નરમ, સૂકા કપડાનો ઉપયોગ કરો. પ્રવાહી ક્લીનર્સ, એરોસોલ્સ અથવા ઘર્ષક સામગ્રીનો ઉપયોગ કરવાનું ટાળો, કારણ કે તે ફિનિશ અથવા આંતરિક ઘટકોને નુકસાન પહોંચાડી શકે છે.
- વેન્ટિલેશન: Ensure the unit is placed in a well-ventilated area. Do not block the ventilation slots. Proper airflow prevents overheating and maintains stable operation.
- પર્યાવરણ: Keep the DAC away from direct sunlight, heat sources, excessive dust, and moisture. The operating temperature should not exceed 50 degrees Celsius.
- પાવર બંધ: When not in use for extended periods, it is recommended to power off the unit and disconnect it from the AC outlet.
5. મુશ્કેલીનિવારણ
If you encounter issues with your DAC-R26 II, refer to the following common troubleshooting steps:
- કોઈ શક્તિ નથી:
- Check if the power cord is securely connected to both the unit and the AC outlet.
- Verify that the AC voltage switch on the rear panel is set correctly for your region.
- Test the AC outlet with another device to ensure it is functional.
- કોઈ સાઉન્ડ આઉટપુટ નથી:
- Ensure the correct input source is selected on the DAC.
- Verify that the analog output cables (RCA or XLR) are securely connected to both the DAC and your ampલિફાયર/પ્રીampજીવંત
- તમારા પર વોલ્યુમ સ્તર તપાસો ampલિફાયર/પ્રીampજીવંત
- Confirm that your audio source is playing and sending a signal.
- વિકૃત અવાજ:
- છૂટક કેબલ જોડાણો માટે તપાસો.
- ખાતરી કરો કે એસample rate and bit depth settings on your audio source match the DAC's capabilities for the selected input.
- If using USB, try reinstalling the USB driver on your computer if applicable.
- Network Streaming Issues:
- Ensure the LAN cable is securely connected and your network is active.
- Verify that your streaming device and the DAC are on the same local network.
- Restart your network router and the DAC.
જો આ પગલાંઓ અજમાવવા પછી પણ સમસ્યા ચાલુ રહે, તો કૃપા કરીને ગ્રાહક સપોર્ટનો સંપર્ક કરો.
6. ટેકનિકલ વિશિષ્ટતાઓ
Detailed specifications for the Gustard DAC-R26 II:
| શ્રેણી | સ્પષ્ટીકરણ |
|---|---|
| Digital Inputs (COAX/AES/OPT) | PCM 16-24bit/44.1-192kHz; DSD DoP64 |
| Digital Inputs (USB/Streamer) | PCM 16-32bit/44.1-768kHz; DSD DoP64-DOP256; NATIVE DSD: DSD64-DSD512 |
| Digital Inputs (IIS) | PCM 16-32bit/44.1-1536kHz; NATIVE DSD: DSD64-DSD2048 (DSD2048: @ DSD direct mode) |
| 10M Input Interface (BNC) | Input impedance 50 Ohm, 0dBm-20dBm, CMOS square wave 0.2V-3.3V, sine wave 0.5-3.3V |
| આવર્તન પ્રતિભાવ | 20-20kHz /±0.2dB OS mode |
| ગતિશીલ શ્રેણી | >117dB |
| સિગ્નલ ટુ-અવાજ ગુણોત્તર | >122dB |
| ચેનલ Crosstalk | <-134dB @ 1kHz |
| THD+N | <=0.003% @1kHz |
| IMD | ≈0.008% @ 0dbfs |
| આરસીએ આઉટપુટ સ્તર | 2.5Vrms (વોલ્યુમ ફિક્સ્ડ) |
| આરસીએ આઉટપુટ અવરોધ | 100Ω |
| XLR Output Level | 5.0Vrms (વોલ્યુમ ફિક્સ્ડ) |
| XLR Output Impedance | 100Ω |
| એસી પાવર | AC115V/230V 50/60Hz (Manual switching) |
| પાવર વપરાશ | <20W |
| ચેસિસ પરિમાણો (W x D x H) | 330 x 260 x 65 mm (No pins included 10mm) |
| વજન | 5.5 કિગ્રા |
| ઉચ્ચ તાપમાન રેટિંગ | 50 ડિગ્રી સેલ્સિયસ |
| બ્લૂટૂથ સંસ્કરણ | 5.1 (Supports LDAC/AAC/SBC/aptX, Qualcomm QCC5125) |
| USB Interface Chip | XMOS XU216 |
Image 6.1: Close-up of the proprietary discrete R-2R architecture design by Gustard, showcasing the 26-bit module for natural audio reproduction.
છબી 6.2: વિગતવાર view of internal components related to native 1-Bit DSD processing, emphasizing the unit's capability for high-fidelity audio.
7. વોરંટી માહિતી
The Gustard DAC-R26 II typically comes with a 2-year warranty. Please refer to the Gustard Card included in your package or contact your retailer for specific warranty terms and conditions, as coverage may vary by region and seller. Keep your proof of purchase for warranty claims.
8. ગ્રાહક આધાર
For technical assistance, troubleshooting, or warranty inquiries, please contact your retailer or the manufacturer, Gustard. You may also visit the AOSHIDA store on Amazon for additional product information and support resources: