Aune X8 18th Anniversary Edition-BT DAC User Manual

1. Introducere

The Aune X8 18th Anniversary Edition-BT is a high-performance Digital-to-Analog Converter (DAC) designed for audiophiles. This device features high-resolution audio decoding up to 32bit/768k and DSD512, a unique op-amp replaceable design for sound customization, and multiple input/output options including USB, coaxial, optical, Bluetooth 5.1 (with aptX-HD and LDAC support), RCA preamp/line out, and balanced TRS output. This manual provides detailed instructions for setup, operation, and maintenance of your Aune X8 XVIII-BT DAC.

Imaginea 1.1: Față view of the Aune X8 18th Anniversary Edition-BT DAC.

2. Produs terminatview

2.1 Caracteristici cheie

• Audio de înaltă rezoluție: Supports up to 32bit/768k PCM and DSD512.
• op-Amp Design înlocuibil: Allows users to customize sound characteristics by replacing the dual op-amp.
• FPGA Core Design: Utilizes FPGA technology for purer digital signals and enhanced sound quality.
• Intrări versatile: USB, Optical, Coaxial, and Bluetooth 5.1 (aptX-HD, LDAC).
• Ieșiri multiple: RCA Preamp Out, RCA Line Out, and Balanced TRS Preamp Afară.
• 7 Filter Modes: Provides various sound filtering options.

2.2 Comenzi și conexiuni

Image 2.1: Front and Rear Panel Layout of the Aune X8 XVIII-BT DAC.

Panoul frontal:

• Buton de selecție: Used to cycle through input sources.
• Indicatoare luminoase: Display the currently selected input (USB, OPT, COAX, A, B, C, D, MN).
• Buton de volum: Controls the output volume for the preamp ieșire.

Panoul din spate:

• TRS Output (L/R): Balanced TRS preamp output for professional audio connections.
• RCA Preamp Out (L/R): Variable RCA output for connecting to power ampliificatoare sau difuzoare active.
• Ieșire linie RCA (S/R): Fixed level RCA output for connecting to integrated amplifieri sau preampliificatori.
• Intrare coaxială: Intrare audio digitală.
• Intrare optică: Intrare audio digitală.
• Intrare USB: For connecting to computers or portable devices.
• Bluetooth Antenna (ANT): For Bluetooth signal reception (Bluetooth version only).
• Power Switch (SW): Pornește sau oprește dispozitivul.
• Power Input (DC): Se conectează la adaptorul de alimentare furnizat.

3. Configurare

3.1 Conectarea inițială

1. Conectați adaptorul de alimentare furnizat la Putere de intrare (DC) on the rear panel and then to a suitable power outlet.
2. Connect your audio output device (e.g., power amplifier, active speakers, headphone amplifier) to the appropriate output on the X8 XVIII-BT DAC:
   • For variable output, use RCA Preamp Afară or TRS Output.
   • For fixed line level output, use Ieșire linie RCA.

3.2 Conectarea surselor de intrare

The Aune X8 XVIII-BT DAC supports various digital audio inputs:

• Intrare USB: Connect a USB cable from your computer, smartphone, tablet, or portable music player (with appropriate cables) to the Intrare USB pe panoul din spate.
• Intrare optică: Connect an optical cable from your digital audio source (e.g., TV, CD player, game console) to the Intrare optică.
• Intrare coaxială: Connect a coaxial cable from your digital audio source to the Intrare coaxială.
• Intrare Bluetooth: Ensure the Bluetooth antenna is securely attached to the FURNICĂ connector on the rear panel.

Image 3.1: Multi-Connectivity Diagram.

4. Funcționare

4.1 Pornire/Oprire

Întoarce Power Switch (SW) on the rear panel to the 'ON' position to power on the device. Flip it to 'OFF' to power off.

4.2 Selectarea intrării

Apăsați tasta Butonul de selecție on the front panel to cycle through the available input sources (USB, OPT, COAX, Bluetooth). The corresponding indicator light will illuminate to show the active input.

4.3 Controlul volumului

The Buton de volum on the front panel controls the output level of the RCA Preamp Afară şi TRS Output. Rotate clockwise to increase volume and counter-clockwise to decrease volume. The Ieșire linie RCA provides a fixed output level and is not affected by the volume knob.

4.4 Filter Modes

The X8 XVIII-BT DAC features 7 digital filter modes. These modes can be selected to fine-tune the sound characteristics according to your preference. Refer to the product's detailed specifications or Aune's official website for specific instructions on how to cycle through and select these filter modes, as the method may vary.

4.5 Bluetooth Pairing (Bluetooth Version Only)

1. Asigurați-vă că antena Bluetooth este conectată.
2. Select the Bluetooth input using the Butonul de selecție.
3. Pe dispozitivul mobil (smartphone, tabletă, laptop), activați Bluetooth și căutați dispozitivele disponibile.
4. Select "Aune X8 XVIII-BT" (or similar) from the list of devices to pair.
5. Once paired, audio from your device will be streamed to the X8 XVIII-BT DAC.

Image 4.1: Bluetooth connectivity with portable devices.

5. Caracteristici avansate

5.1 Op-Amp Înlocuire

The Aune X8 XVIII-BT DAC allows for the replacement of its dual op-amp, enabling users to customize the sound signature. This feature is intended for experienced users. Exercise caution when handling electronic components.

1. Ensure the device is powered off and disconnected from the power supply.
2. Deschideți cu grijă dispozitivul casing according to the specific instructions provided with your unit or by Aune support.
3. Locate the existing dual op-amp.
4. Using an appropriate tool (e.g., op-amp puller), gently remove the op-amp. Note its orientation.
5. Insert the new compatible dual op-amp, ensuring correct orientation and pin alignment. Do not force the op-amp la loc.
6. Închideți dispozitivul casing în siguranță.

Image 5.1: Op-Amp replaceable design.

Different dual op-amps can significantly alter the sound characteristics. Experiment with various compatible op-amps to find your preferred sound.

5.2 FPGA Core Design

The X8 XVIII-BT DAC incorporates Aune's proprietary FPGA (Field-Programmable Gate Array) technology. This design is implemented to process digital signals with high precision, resulting in a purer and more accurate audio reproduction.

Image 5.2: Illustration of FPGA Core Design.

6. Connectivity Scenarios

6.1 PC HiFi Setup

Connect the X8 XVIII-BT DAC to your computer via USB. This allows the DAC to process high-resolution audio files (up to 32bit/768k DSD512) from your computer, enhancing the sound quality for active speakers or headphone ampliificatori.

Image 6.1: PC HiFi setup with Aune X8 DAC.

6.2 Coaxial/Optical Input Setup

Utilize the coaxial or optical inputs to connect to digital transports or players. This setup supports PCM up to 384k and DSD128, providing a high-quality audio system without requiring a PC.

Image 6.2: Coaxial/Optical input setup.

6.3 Portable Device Connectivity

The X8 XVIII-BT DAC can be connected to various portable devices such as iPhones, Android phones, iPads, or portable music players via USB (corresponding cables may be needed). This provides an instant improvement in sound quality for your mobile audio experience.

Image 6.3: Portable device connectivity.

7. Specificații

Imaginea 7.1: Caracteristici cheie de mai susview.

8. Depanare

• Fără putere: Ensure the power adapter is securely connected to both the device and a working power outlet. Check the power switch on the rear panel.
• Fără sunet:
  • Verify that the correct input source is selected on the DAC.
  • Check all audio cable connections between the DAC and your amplifier/difuzoare.
  • If using preamp outputs, ensure the volume knob is not set to minimum.
  • Confirmați că dvs ampdifuzoarele sunt pornite și setate la intrarea corectă.
• Sunet intermitent/căderi de sunet:
  • Check the quality and secureness of your digital input cables (USB, optical, coaxial).
  • For Bluetooth, ensure your source device is within range and there is no interference.
  • Try a different input source or cable to isolate the issue.
• Probleme de conexiune Bluetooth:
  • Ensure the Bluetooth antenna is properly attached.
  • Make sure the DAC is in Bluetooth input mode.
  • Forget the device on your source device's Bluetooth settings and attempt to re-pair.
• Distorsiunea sunetului:
  • Check if the input signal level is too high, causing clipping.
  • Ensure all connections are secure and free from damage.
  • If using a replaceable op-amp, ensure it is correctly seated and compatible.

9. Întreținere

• curatenie: Folosiți o lavetă moale și uscată pentru a curăța exteriorul dispozitivului. Evitați utilizarea de produse de curățare lichide sau materiale abrazive.
• Plasare: Place the device on a stable, flat surface with adequate ventilation. Avoid direct sunlight, heat sources, and high humidity.
• Organizare de cabluri: Ensure cables are not excessively bent or strained to prevent damage.

10. Garanție și asistență

10.1 Informații despre garanție

All Aune products come with a 2-year after-sales service. This warranty covers manufacturing defects and issues arising from normal use.

10.2 Servicii post-vânzare

Aune provides a comprehensive after-sales system. Should you encounter any problems during the use of your product, please contact Aune customer support. They will assist you promptly and provide a satisfactory resolution.

10.3 Product Condition

All Aune items are new and carefully packaged. If you observe any signs of use upon receiving your product, it may be due to transit or warehouse handling. Please communicate with customer support to address such concerns.

11. Videoclip de produs