Manuel d'utilisation du NuPrime DAC-9X (ARGENT)

1. Introduction

Merci pour votre achatasing the NuPrime DAC-9X (SILVER). This high-performance Digital-to-Analog Converter (DAC) and preamplifier is designed to be the heart of your audio system, offering extensive input and format support, advanced decoding capabilities, and superior sound quality. This manual provides essential information for setting up, operating, and maintaining your DAC-9X.

Figure 1 : Face avant view of the NuPrime DAC-9X (SILVER).

2. Informations importantes sur la sécurité

Please read all safety and operating instructions carefully before using your DAC-9X. Keep these instructions for future reference.

• Source d'alimentation : Branchez l'appareil uniquement à une alimentation électrique du type décrit dans le mode d'emploi ou indiqué sur l'appareil.
• Ventilation: Ensure proper ventilation. Do not block any ventilation openings. Do not install near heat sources such as radiators, heat registers, stoves, or other apparatus (including amp(échangeurs thermiques) qui produisent de la chaleur.
• Eau et humidité : N’utilisez pas cet appareil à proximité de l’eau. Ne l’exposez pas aux éclaboussures ni aux projections d’eau.
• Nettoyage: Nettoyer uniquement avec un chiffon sec. Débrancher l'appareil de la prise murale avant de le nettoyer.
• Entretien: N'essayez pas de réparer ce produit vous-même, car l'ouverture ou le retrait des couvercles peut vous exposer à des tensions dangereuses.tage ou d'autres dangers. Confiez toute réparation à un personnel qualifié.
• câbles: Protégez le cordon d’alimentation pour éviter qu’il ne soit piétiné ou pincé, en particulier au niveau des fiches, des prises de courant et du point de sortie de l’appareil.

3. Principales caractéristiques

The NuPrime DAC-9X is engineered with advanced technologies to deliver exceptional audio performance:

• The Heart of Your System: Features dual ESS Technology 32-bit audio DAC ESS9028Q2M chips, independently decoding left and right channels to enhance channel separation and reduce overall noise. Utilizes Vishay professional film MELF resistors for superior sound quality.
• Circuits d'alimentation avancés : Employs a low-noise power supply with anti-vibration processing to minimize AC hum. All onboard power circuits are designed for minimal noise interference.
• Native MQA Decoding: Equipped with MQA technology, allowing for the reproduction of the original master recording sound from MQA audio files and streams. Front panel LEDs indicate MQA stream detection:
  • Vert: Indicates playback of an MQA Authentic file.
  • Bleu: Indicates playback of an MQA Studio file.
  • Magenta: Indicates playback of an MQA ORFS (Original Sample taux) file, approved by the artist/producer in the studio or verified by the copyright holder.
• Ultra-Low Jitter and Distortion: Incorporates the "NuPrime SRC" DSP chip, co-developed with an IC vendor, which upsamples the input signal to MHz before downconverting to the target sample rate, achieving ultra-low jitter and distortion.
• Connectivité flexible : Includes an expansion port for optional Bluetooth receivers or WiFi audio streamers.
• Contrôle précis : Features full microprocessor control with memory retention for settings.
• Native DSD Playback: Supports native DSD playback via ASIO2.1 and DoP methods.
• Minimal Noise Floor: Utilizes ultra-low noise JFETs in the input stage to achieve the lowest possible noise floor.
• Réglage individuel du volume : Allows for individual volume adjustment for each input, enabling precise matching of source levels.
• Asynchronous Transfer: Employs an asynchronous transfer method for optimal data integrity.
• Efficacité énergétique : Significantly reduced standby power consumption.
• Wireless Receiver Support: A USB Type-A port provides S/PDIF data and 5V power, allowing connection to external wireless audio receivers (e.g., NuPrime Omnia WR-1, BTR-HD, Stream Mini, Stream Mini DAC) using a single standard USB cable.

Figure 2 : Interne view of the NuPrime DAC-9X, highlighting the advanced circuitry and power supply.

4. Installation

4.1 Déballage et placement

1. Carefully remove the DAC-9X from its packaging. Retain the packaging for future transport or storage.
2. Placez l'appareil sur une surface stable et plane, à l'abri de la lumière directe du soleil, des sources de chaleur et de l'humidité excessive.
3. Ensure adequate ventilation around the unit. Do not place it in an enclosed cabinet without proper airflow.

4.2 Connexion d'alimentation

• Before connecting the power cord, ensure the power switch on the rear panel is in the OFF position.
• Connect the supplied AC power cord to the AC inlet on the rear panel of the DAC-9X.
• Branchez l'autre extrémité du cordon d'alimentation dans une prise murale appropriée.

5. Connexions

The DAC-9X offers a variety of input and output options to integrate seamlessly into your audio system.

Figure 3: Rear panel of the NuPrime DAC-9X, illustrating available connections.

5.1 Connexions d'entrée

• USB Type B 2.0 Hi-Speed: Connect your computer (Windows, Mac, Linux) to this port for high-resolution audio playback.
  • Windows OS: Supports up to 384KHz/24Bit and Native DSD 256.
  • Mac / Linux OS: Supports up to 384KHz/24Bit and DOP DSD 128.
• IIS/DSD: For direct digital input, supporting PCM 44.1KHz ~ 384KHz/32Bit and DSD.
• Coaxial: Standard S/PDIF coaxial digital input.
• Optique: Standard S/PDIF optical digital input.
• Extension Port (USB Type-A): This port provides S/PDIF data and 5V power for connecting compatible external wireless audio receivers (e.g., NuPrime Omnia WR-1, BTR-HD, Stream Mini, Stream Mini DAC).

5.2 Connexions de sortie

• Sortie analogique (RCA) : Connect to your power ampAmplificateur ou haut-parleurs actifs utilisant des câbles RCA.
• Sortie symétrique (XLR) : For professional-grade connections to power amplifiers or active speakers with XLR inputs, providing improved noise rejection.
• Déclenchement : For connecting to other compatible audio components that support 12V trigger control.

6. Mode d'emploi

6.1 Mise sous/hors tension

• To power on the unit, flip the main power switch on the rear panel to the ON position.
• Press the power button on the front panel (usually integrated with the Input knob) to bring the unit out of standby mode.
• To put the unit into standby, press the power button on the front panel again.
• For complete power off, flip the main power switch on the rear panel to the OFF position.

6.2 Sélection d'entrée

• Rotate the "INPUT" knob on the front panel to cycle through the available input sources (USB, IIS/DSD, Coaxial, Optical, Extension Port).
• The selected input will be displayed on the front panel screen.

6.3 Contrôle du volume

• Rotate the "VOLUME" knob on the front panel to adjust the output volume.
• The volume level will be displayed on the front panel screen.
• The DAC-9X features individual volume adjustment for each input, allowing you to precisely match the output levels of different sources.

6.4 MQA Indicator

• When an MQA stream is detected, the MQA LED on the front panel will illuminate.
• The color of the LED indicates the type of MQA file being played:
  • Vert: MQA Authentic
  • Bleu: Studio MQA
  • Magenta: MQA ORFS (Original Sample taux)

7. Spécifications

8. Dépannage

If you experience issues with your DAC-9X, please refer to the following common problems and solutions:

9. Entretien

To ensure the longevity and optimal performance of your NuPrime DAC-9X, follow these maintenance guidelines:

• Nettoyage: Use a soft, dry, lint-free cloth to clean the exterior surfaces of the unit. Do not use abrasive cleaners, waxes, or solvents as they may damage the finish.
• Ventilation: Periodically check that the ventilation openings are clear of dust and debris. Use a soft brush or compressed air to gently remove any blockages.
• Stockage: If storing the unit for an extended period, disconnect it from the power supply and store it in a cool, dry place, preferably in its original packaging.
• Évitez les liquides : Never allow liquids to enter the unit. If liquid accidentally spills into the unit, immediately disconnect power and contact qualified service personnel.

10. Garantie et assistance

The NuPrime DAC-9X is covered by a manufacturer's warranty. Please refer to the warranty card included with your product for specific terms and conditions, including warranty period and coverage details.

For technical support, service, or warranty claims, please contact your authorized NuPrime dealer or distributor. You may also visit the official NuPrime website pour des ressources supplémentaires et des informations de contact.