1. Introduktion
Thank you for choosing the S.M.S.L DL400 Audio DAC & Headphone Amplifier. This device is designed to deliver high-fidelity audio performance, featuring advanced decoding capabilities and a powerful balanced headphone amplifier. Please read this manual thoroughly to ensure proper setup and operation.
2. Sikkerhedsoplysninger
- Enheden må ikke skilles ad eller modificeres.
- Hold enheden væk fra vand, fugt og direkte sollys.
- Sørg for korrekt ventilation for at forhindre overophedning.
- Brug kun den medfølgende strømadapter.
- Undgå at placere tunge genstande på enheden.
- Tag stikket ud af enheden under tordenvejr, eller når den ikke skal bruges i længere perioder.
3. Pakkens indhold
Bekræft at alle varer er til stede i din pakke:
- S.M.S.L DL400 Audio DAC & Headphone Amplivligere
- Hurtig startvejledning
- Fjernbetjening
- Strømkabel
- USB kabel
- Bluetooth antenne
4. Produktet er slutview
4.1 Frontpanel
The front panel features essential controls and headphone outputs.
Image: The front panel of the S.M.S.L DL400, highlighting the 6.35mm headphone port and 4.4mm balanced headphone port, along with power output specifications for 16Ω and 300Ω loads.
- 6.35 mm hovedtelefonstik: Standard single-ended headphone output.
- 4.4mm Balanced Headphone Jack: Balanced headphone output for enhanced audio quality.
- Skærm: Shows current input, volume, sample rate, and menu options.
- Knop: Multi-function control for volume adjustment and menu navigation.
4.2 Bagpanel
The rear panel provides various input and output connections.
Billede: En detaljeret view of the S.M.S.L DL400's rear panel, illustrating all available input and output ports including XLR, RCA, AES/EBU, Coaxial, Optical, I2S, USB, Bluetooth Antenna, and Power Input.
- XLR balanceret udgang: Professional balanced analog audio output.
- RCA-udgang: Standard single-ended analog audio output.
- AES/EBU Input: Professional digital audio input.
- Koaksial indgang: Digital audio input via coaxial cable.
- Optisk indgang: Digital audio input via optical fiber.
- I2S Input: High-performance digital audio input, often used with dedicated audio transports.
- USB-indgang: Connects to a computer or other USB audio source.
- Bluetooth-antenne: For wireless audio reception.
- Strømindgang: Tilsluttes til AC-strømforsyningen.
5. Opsætning
5.1 Tilslutning af strøm
- Ensure the DL400 is switched off.
- Tilslut det medfølgende strømkabel til strømindgangen på bagpanelet.
- Sæt den anden ende af strømkablet i en passende stikkontakt.
5.2 Tilslutning af lydkilder
Vælg en af følgende metoder til at tilslutte din lydkilde:
- USB: Connect a computer or digital audio player to the USB input using a USB cable.
- Optisk/koaksial: Connect a CD player, TV, or game console to the Optical or Coaxial input.
- AES/EBU: For professional audio equipment, connect to the AES/EBU input.
- I2S: Connect compatible I2S sources. Refer to the image below for I2S interface standards.
Image: Diagram illustrating normal and reversed I2S pin definitions, as well as normal and inverted XLR pin configurations, for professional interface compatibility.
- Bluetooth: Screw the Bluetooth antenna onto its connector on the rear panel.
5.3 Tilslutning af hovedtelefoner
Plug your headphones into either the 6.35mm or 4.4mm balanced headphone jack on the front panel.
5.4 Tilslutning til en AmpHøjttalere/højttalere
If using the DL400 as a DAC for an external ampLifier eller aktive højttalere:
- RCA: Connect the RCA outputs to your amplifier's analog inputs using RCA cables.
- XLR: Connect the XLR balanced outputs to your amplifier's balanced inputs using XLR cables.
6. Betjeningsvejledning
6.1 Tænd/sluk
Toggle the power switch on the rear panel to turn the unit on or off. The front display will illuminate upon power-on.
6.2 Indgangsvalg
Rotate the front panel knob or use the remote control to cycle through available input sources (USB, Optical, Coaxial, AES/EBU, I2S, Bluetooth).
6.3 Lydstyrkekontrol
Rotate the front panel knob clockwise to increase volume and counter-clockwise to decrease it. The volume level is displayed on the screen. Alternatively, use the volume buttons on the remote control.
6.4 Fjernbetjeningsfunktioner
Den medfølgende fjernbetjening giver nem adgang til forskellige funktioner.
Image: The infrared remote control for the S.M.S.L DL400, showing buttons for power, navigation, menu, input switching, mute, volume, and customizable FN key. It also highlights adjustable display brightness.
- TIL/FRA: Tænd/sluk for enheden.
- Back/Previous Track: Navigate back or to the previous track (for supported sources).
- Up Select / Play/Pause: Navigate up in menus or play/pause audio.
- Indtast/afslut menu: Access or exit the menu.
- Enter Submenu / Next Track: Enter a submenu or skip to the next track.
- Vælg ned: Naviger ned i menuerne.
- Switch input: Cycle through input sources.
- Stum: Slå lyd til/fra.
- FN nøgle: Customizable function key.
- Lydstyrke op/ned: Juster lydstyrken.
6.5 Menunavigation og indstillinger
Press the knob or the 'Enter' button on the remote to access the main menu. Rotate the knob or use the up/down buttons to navigate, and press to select.
- PCM-filtre: The DL400 offers various PCM digital filters to tailor the sound to your preference. Experiment with options like Linear Fast, Minimum Fast, Linear Slow, Minimum Slow, Apodizing, Minimum Phase, and Low Dispersion.
Image: The S.M.S.L DL400 display showing PCM filter options and a frequency spectrum graph illustrating the characteristics of different filter types (Linear Fast, Minimum Fast, Linear Slow, Minimum Slow, Apodizing, Minimum Phase, Low Dispersion).
- Sound Color: Adjust the tonal characteristics of the audio output.
- DPLL Functionality: Digital Phase-Locked Loop settings. If audio interruptions occur due to poor clock stability, increasing the DPLL value (from 1-15, default is 5) can help.
- Skærmens lysstyrke: Adjust the brightness of the front display (6 levels available).
6.6 MQA Decoding
The DL400 supports full MQA decoding, allowing you to experience Master Quality Authenticated audio files at their highest resolution.
Image: Explains MQA (Master Quality Authenticated) full decoding support on the DL400, showing the MQA logo and a visual representation of 'Music Origami' for high-resolution audio.
7. Vedligeholdelse
- Rengør enheden med en blød, tør klud. Brug ikke flydende rengøringsmidler eller aerosoler.
- Hold ventilationsåbningerne fri for støv og snavs.
- Opbevar enheden et køligt og tørt sted, når den ikke er i brug i længere perioder.
8. Fejlfinding
| Problem | Mulig årsag | Løsning |
|---|---|---|
| Ingen strøm | Strømkabel ikke tilsluttet; Strømafbryder slukket | Check power cable connection; Turn on power switch |
| Ingen lydudgang | Incorrect input selected; Volume too low; Muted; Cables loose | Select correct input; Increase volume; Unmute; Check all audio cable connections |
| Forvrænget lyd | Source issue; Incorrect sample rate; Faulty cable | Check audio source; Verify sample rate settings; Replace cables |
| Bluetooth forbinder ikke | Antenna not connected; Device not in pairing mode; Interference | Ensure Bluetooth antenna is connected; Put DL400 and device in pairing mode; Reduce distance or interference |
| Fjernbetjening virker ikke | Batteries dead; Obstruction; Out of range | Replace batteries; Remove obstructions; Operate within range |
9. Specifikationer
| Feature | Specifikation |
|---|---|
| DAC-chip | ES9039MSPRO |
| USB Processor | XMOS XU-316 (3rd Generation) |
| PCM -understøttelse | Op til 32-bit/768kHz |
| DSD Support | DSD512 (Hard Decoding), DSD256 (Native) |
| Hovedtelefonudgangseffekt (32Ω) | 3000mW x 2 |
| Hovedtelefonudgangseffekt (300Ω) | 700mW |
| Indgange | USB, Optical, Coaxial, AES/EBU, I2S, Bluetooth |
| Udgange | RCA, XLR, 6.35mm Headphone, 4.4mm Balanced Headphone |
| Bluetooth version | 5.1 |
| Bluetooth codecs | aptX, aptX HD, LDAC, AAC, SBC |
| MQA-support | Fuld MQA-afkodning |
| Dimensioner (B x D x H) | 250 mm x 240 mm x 47 mm (ca. 9.84 x 9.45 x 1.85 tommer) |
| Varens vægt | 4.4 pund (ca. 2 kg) |
10. Garanti og support
The S.M.S.L DL400 comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package or visit the official S.M.S.L webhjemmeside for detaljerede garantivilkår.
For technical support, troubleshooting assistance, or service inquiries, please contact your retailer or the official S.M.S.L customer support channels.