S.M.S.L DL300 Audio Decoder Headphone Amplivligere brugervejledning

1. Introduktion

The S.M.S.L DL300 is a high-performance audio decoder and headphone amplifier designed to deliver exceptional sound quality. It incorporates advanced AK4499EX and AK4191 chips for precise digital-to-analog conversion and features a powerful headphone amplifier circuit. This manual provides detailed instructions for the proper setup, operation, and maintenance of your DL300 unit.

2. Nøglefunktioner

• AK4499EX + AK4191 Chipset: Utilizes a new stereo chip combination from AKM, offering excellent noise and THD characteristics, with complete separation of digital and analog signals for detailed sound reproduction.
• High-Power Headphone Output: Features 6.35mm and 4.4mm headphone jacks with a PLFC headphone amplifier circuit, providing two gain adjustable levels for various headphone impedances.
• Advanced PCM Filters and Tones: Offers 6 types of PCM filters and 4 tone options to customize the audio output according to user preference.
• Lydstøtte i høj opløsning: Supports PCM playback up to 32bit/768kHz and hard decoding of DSD512.
• XMOS XU-316 Processor: Equipped with the third-generation XMOS XU-316 for robust USB audio processing.
• Extensive Input/Output: USB, Optical, Coaxial, and I²S inputs support DSD transmission. Coaxial and Optical inputs also support DOP64.
• Bluetooth-forbindelse: Integrates the QCC5125 Bluetooth chip with an external antenna, supporting LDAC and apt-X HD for high-quality wireless audio streaming.

Figure 2.1: Internal AK4499EX and AK4191 Chipset for Digital/Analog Signal Separation.

Figur 2.2: Overview of DL300's core technologies and supported audio formats.

3. Pakkens indhold

Kontroller venligst, at alle varer er til stede i pakken:

• S.M.S.L DL300 Main Unit
• Power Cable (with various plug adapters)
• USB-kabel (Type-C)
• Fjernbetjening
• Bluetooth antenne
• Brugermanual

Figure 3.1: Included accessories with the S.M.S.L DL300.

4. Kontrol og grænseflader

4.1 Frontpanel

Figur 4.1: Frontpanel overview.

• Skærm: Viser aktuel indgang, sample rate, volume, and menu options.
• 6.35 mm hovedtelefonstik: Standard single-ended headphone output.
• 4.4 mm hovedtelefonstik: Balanceret hovedtelefonudgang.
• Multifunktionsknap: Controls power, volume, input selection, and menu navigation.

4.2 Bagpanel

Figur 4.2: Tilslutninger på bagpanelet.

• XLR Balanced Outputs (L/R): For tilslutning til balanceret ampløftere eller aktive højttalere.
• RCA Unbalanced Outputs (L/R): Til tilslutning til ubalanceret ampløftere eller aktive højttalere.
• Koaksial indgang: Digital lydindgang.
• Optisk indgang: Digital lydindgang.
• I²S Input (HDMI): High-performance digital audio input.
• USB-indgang: Til tilslutning til en computer eller anden USB-lydkilde.
• Bluetooth-antennestik: For attaching the included Bluetooth antenna.
• AC strømindgang: Til tilslutning af strømkablet.

4.3 Fjernbetjening

Figur 4.3: Fjernbetjeningsfunktioner.

• TIL/FRA: Tænd eller sluk for enheden.
• Retur: Gå tilbage til den forrige menu.
• Select Up/Down: Naviger i menuindstillinger.
• Indtast/afslut menu: Access or exit the main menu.
• Enter Secondary Menu: Access sub-menus.
• Switch input: Gennemgå tilgængelige inputkilder.
• Stum: Slå lydudgangen til eller fra.
• FN nøgle: Customizable function key.
• Lydstyrke øge/sænke: Juster udgangslydstyrken.

5. Opsætning

1. Tilslut strøm: Tilslut det medfølgende strømkabel til AC-strømindgangen på bagpanelet og derefter til en passende stikkontakt.
2. Tilslut Bluetooth-antenne: Screw the Bluetooth antenna onto its connector on the rear panel.
3. Tilslut lydkilde: Choose your desired audio input (USB, Optical, Coaxial, I²S) and connect your source device to the corresponding input on the DL300 rear panel. For USB connection, use the provided USB Type-C cable.
4. Tilslut outputenhed:
   • For headphones, plug your headphones into either the 6.35mm or 4.4mm jack on the front panel.
   • Til ekstern amplifiers or active speakers, connect the DL300's XLR or RCA outputs to your receiving equipment.
5. Tænd: Press the power button on the remote control or the multi-function knob on the front panel to turn on the DL300.

6. Betjeningsvejledning

6.1 Grundlæggende betjening

• Lydstyrkekontrol: Rotate the multi-function knob on the front panel or use the Volume +/- buttons on the remote control to adjust the output volume.
• Valg af input: Press the multi-function knob or the 'Switch Input' button on the remote to cycle through available input sources (USB, Optical, Coaxial, I²S, Bluetooth).
• Stum: Press the 'Mute' button on the remote control to temporarily silence the audio output.

6.2 Menunavigation

Press the multi-function knob or the 'Enter/Exit Menu' button on the remote to access the main menu. Use the Up/Down buttons to navigate and the 'Enter' button to select options. The 'Return' button exits the current menu level.

6.3 PCM Filters and Tones

The DL300 offers various PCM filters and tone settings to fine-tune the sound. These can be accessed through the menu. Experiment with different settings to find your preferred audio characteristics.

Figure 6.1: PCM Filter Characteristics.

6.4 Bluetooth -parring

1. Select Bluetooth as the input source on the DL300. The display will show 'BT' and indicate pairing mode.
2. Aktiver Bluetooth på din mobilenhed eller computer, og søg efter tilgængelige enheder.
3. Select 'S.M.S.L DL300' from the list of devices to pair.
4. Once paired, the DL300 display will confirm the connection, and you can stream audio wirelessly.

Figure 6.2: Bluetooth Connectivity Features.

6.5 Headphone Output Gain

The headphone output has adjustable gain settings. This can be configured in the system menu to match the impedance and sensitivity of your headphones, ensuring optimal performance and preventing distortion.

Figure 6.3: Headphone Output Details.

7. Vedligeholdelse

• Rensning: Brug en blød, tør klud til at rengøre enhedens yderside. Undgå at bruge slibende rengøringsmidler eller opløsningsmidler.
• Ventilation: Ensure the unit has adequate ventilation. Do not block the ventilation holes.
• Miljø: Keep the unit away from direct sunlight, heat sources, excessive dust, moisture, and strong electromagnetic fields.
• Sluk: Always power off the unit before disconnecting cables or moving it.

8. Fejlfinding

9. Specifikationer

Figure 9.1: THD+N Performance Data.

Figure 9.2: Signal to Noise Ratio Performance Data.

Figure 9.3: Dynamic Range Performance Data.

10. Garanti og support

S.M.S.L products are typically covered by a manufacturer's warranty. For specific warranty terms, duration, and conditions, please refer to the warranty card included with your product or contact your retailer. For technical support, product inquiries, or service requests, please contact the official S.M.S.L support channels or your authorized dealer.

11. Produktvideo overview