SMSL D400 Pro HiFi MQA DAC User Manual

1. Uvod

The SMSL D400 Pro is a high-fidelity Digital-to-Analog Converter (DAC) designed for discerning audio enthusiasts. It features advanced AK4499EX and AK4191EQ DAC chips, MQA full decoding capabilities, and a low-distortion design to deliver exceptional sound quality. This manual provides essential information for setting up, operating, and maintaining your D400 Pro.

2. Vsebina paketa

Prosimo, preverite, ali so v paketu vsi elementi:

• 1 x SMSL D400 Pro Unit
• 1 x USB kabel
• 1 x daljinski upravljalnik
• 1 x AC napajalni kabel
• 1 x Uporabniški priročnik (ta dokument)

3. Izdelek je končanview

The SMSL D400 Pro is engineered for high-resolution audio playback, integrating advanced components and design principles.

Slika 3.1: Spredaj view prikaza SMSL D400 Pro DACasing its sleek silver chassis, display screen, and control knob.

Ključne značilnosti:

• Dual DAC Chips: Equipped with AK4499EX and AK4191EQ DAC chips for superior audio processing.
• Zvok visoke ločljivosti: Supports PCM up to 32bit/768kHz and DSD512.
• MQA Full Decoding: Provides full MQA decoding for master quality audio playback, including MQA-CD support.
• Ultra nizko popačenje: Achieves distortion as low as 0.00006% (-124dB) for clear and accurate sound.
• XMOS XU-316 USB Solution: Utilizes the latest 3rd generation XMOS USB solution for stable and efficient data transfer.
• Vrhunske komponente: Ima 5 vrhunskih dvojnih operacijskih sistemovamps and audiophile-grade components.
• Advanced Clock Processing: Incorporates a self-developed CK-03 clock processing circuit to reduce jitter.
• Bluetooth povezljivost: Supports Qualcomm's high-end Bluetooth chip with LDAC (24bit/96kHz), aptX/HD, SBC, and AAC codecs.
• Robusten napajalnik: Multiple low-noise regulated power supplies ensure a stable and clean power system.
• Premium zgradba: Fully laminated tempered glass display panel and high-quality gold-plated input/output terminals.

Slika 3.2: An infographic highlighting the key features of the D400 Pro, including DAC chips, MQA support, low distortion, XMOS USB, DSD, PCM, and remote control.

Slika 3.3: Illustration explaining MQA CD support, showing how a CD player's digital output can be fed to the D400 Pro for MQA decoding, restoring original high-resolution audio.

Slika 3.4: Podrobno view of the XMOS XU-316 USB solution chip, emphasizing its support for DSD512 and PCM 32bit/768kHz.

Slika 3.5: Close-up of the AK4191 and AK4499EX flagship DAC chips, along with a graph illustrating the D400 Pro's low distortion performance at 0.00006% (-124dB).

Slika 3.6: Notranji view highlighting the 5 high-end dual op-amps, the CK-03 clock processing circuit, built-in low-noise power processing, and high-quality gold-plated input/output connection terminals.

Slika 3.7: Depiction of the D400 Pro's Bluetooth functionality, showing a smartphone streaming audio wirelessly with support for LDAC, aptX/HD, SBC, and AAC codecs within a 0-15m effective distance.

4. Nastavitev

Follow these steps to connect your SMSL D400 Pro to your audio system:

1. Napajalni priključek: Connect the supplied AC power cable to the D400 Pro's power input and then to a wall outlet.
2. Povezava vhodnega vira: Choose your desired digital audio input:
   • USB: Connect the USB cable from your computer (Windows 7/8/8.1/10/11 requires driver installation) or other USB audio source to the D400 Pro's USB input.
   • Optični/koaksialni: Connect an optical or coaxial cable from your source device (e.g., CD player, TV) to the corresponding input on the D400 Pro.
   • IIS/AES: For advanced users, connect compatible sources to the IIS or AES inputs.
   • Bluetooth: Ensure the D400 Pro is powered on. On your source device (e.g., smartphone), enable Bluetooth and search for "SMSL D400 Pro" to pair.
3. Izhodna povezava: Connect the D400 Pro to your ampaktivni zvočniki ali zvočniki:
   • Izhod RCA: Use RCA cables to connect the D400 Pro's RCA outputs to the analog inputs of your amplifier.
   • Izhod XLR: Use balanced XLR cables to connect the D400 Pro's XLR outputs to the balanced inputs of your amplifier za optimalno delovanje.
4. Vklop: Press the power button on the front panel or remote control to turn on the D400 Pro.

5. Navodila za uporabo

The D400 Pro offers intuitive controls for seamless audio playback.

5.1 Kontrolniki na sprednji plošči:

• Gumb za upravljanje: Rotate to adjust volume. Press to access the menu or confirm selections.
• Zaslon: Prikazuje trenutni vhod, sampling rate, volume level, and other status information.

5.2 Daljinski upravljalnik:

Priloženi daljinski upravljalnik zagotavlja polno funkcionalnost za priročno upravljanje na daljavo.

• Gumb za vklop: Vklopi/izklopi enoto.
• Izbira vnosa: Dedicated buttons or a cycle button to switch between USB, Optical, Coaxial, IIS, AES, and Bluetooth inputs.
• Povečanje/zmanjšanje glasnosti: Prilagodi izhodno glasnost.
• Mute: Utiša/vklopi zvok zvočnega izhoda.
• Meni/Nastavitve: Accesses various settings such as digital filters, display brightness, and output modes.

5.3 Playback:

1. Select the desired input source using the front panel knob or remote control.
2. Start playback from your connected source device.
3. Prilagodite glasnost želeni ravni poslušanja.
4. The display will show the current sampling rate and MQA status (if applicable).

6. Specifikacije

7. Odpravljanje težav

If you encounter issues with your D400 Pro, refer to the following common problems and solutions:

• Brez napajanja:
  • Ensure the AC power cable is securely connected to both the D400 Pro and a working power outlet.
  • Check if the power button on the front panel or remote control has been pressed.
• Ni zvoka:
  • Verify that the correct input source is selected on the D400 Pro.
  • Check the volume level on the D400 Pro and your amplifier/active speakers. Ensure the D400 Pro is not muted.
  • Confirm that the RCA or XLR cables are correctly connected between the D400 Pro and your amplifier.
  • For USB input, ensure the necessary drivers are installed on your computer (for Windows).
  • Check the source device for proper playback and output settings.
• Popačen zvok:
  • Prepričajte se, da so vsi kabli varno priključeni in nepoškodovani.
  • Preverite izvorni zvok file kakovosti.
  • Reduce the volume level if clipping occurs.
• Težave s povezavo Bluetooth:
  • Ensure the D400 Pro is in Bluetooth input mode.
  • Make sure the source device is within the effective Bluetooth range (0-15m).
  • Try unpairing and re-pairing the D400 Pro from your source device's Bluetooth settings.

8. Vzdrževanje

To ensure the longevity and optimal performance of your SMSL D400 Pro, follow these maintenance guidelines:

• Čiščenje: Za čiščenje zunanjosti enote uporabite mehko, suho krpo. Izogibajte se uporabi abrazivnih čistil, topil ali kemičnih razpršil, saj lahko poškodujejo površino.
• Umestitev: Place the unit on a stable, flat surface with adequate ventilation. Avoid direct sunlight, heat sources, and areas with high humidity or dust.
• Ugasniti: When not in use for extended periods, it is recommended to power off the unit and disconnect it from the power outlet.
• Izogibajte se tekočinam: Do not expose the unit to water or other liquids. If liquid enters the unit, immediately disconnect power and seek professional service.

9. Garancija in podpora

The SMSL D400 Pro is manufactured by SMSL and sold by AOSHIDA. For warranty information and technical support, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your purchase receipt as proof of purchase for warranty claims.

For further assistance, you may visit the AOSHIDA store on Amazon or contact their customer service directly.