S.M.S.L DL300

S.M.S.L DL300 Audio Decoder Headphone Amplifier Колдонмо

1. Киришүү

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. Негизги өзгөчөлүктөрү

  • 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.
  • Жогорку чечилиштеги аудио колдоо: 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 байланышы: Integrates the QCC5125 Bluetooth chip with an external antenna, supporting LDAC and apt-X HD for high-quality wireless audio streaming.
Ички view of the S.M.S.L DL300 showing the AK4499EX and AK4191 chips.

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

Diagram highlighting key features of the S.M.S.L DL300 including XMOS XU-316, DSD support, MQA, and low THD+N.

Figure 2.2: ашыкview of DL300's core technologies and supported audio formats.

3. Пакеттин мазмуну

Пакетте бардык буюмдар бар экенин текшериңиз:

  • S.M.S.L DL300 Main Unit
  • Power Cable (with various plug adapters)
  • USB кабели (Type-C)
  • Алыстан башкаруу
  • Bluetooth антеннасы
  • User Manual
Image showing the S.M.S.L DL300 unit, power cable, USB cable, remote control, Bluetooth antenna, and user manual.

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

4. Башкаруу элементтери жана интерфейстер

4.1 алдыңкы панели

Front panel of the S.M.S.L DL300 showing the display, headphone jacks (6.35mm and 4.4mm), and control knob.

Сүрөт 4.1: Алдыңкы панелдин үстүндөview.

  • Дисплей экраны: Учурдагы киргизүүнү көрсөтөт, сample rate, volume, and menu options.
  • 6.35 мм гарнитура уячасы: Standard single-ended headphone output.
  • 4.4 мм гарнитура уячасы: Balanced headphone output.
  • Көп функциялуу баскыч: Controls power, volume, input selection, and menu navigation.

4.2 Арткы панель

Rear panel of the S.M.S.L DL300 showing XLR, RCA, Coaxial, Optical, HDMI (I2S), USB, and power input ports.

4.2-сүрөт: Арткы панелдин туташуулары.

  • XLR Balanced Outputs (L/R): For connecting to balanced ampкөтөргүчтөр же активдүү спикерлер.
  • RCA Unbalanced Outputs (L/R): For connecting to unbalanced ampкөтөргүчтөр же активдүү спикерлер.
  • Коаксиалдуу киргизүү: Санариптик аудио киргизүү.
  • Оптикалык киргизүү: Санариптик аудио киргизүү.
  • I²S Input (HDMI): High-performance digital audio input.
  • USB киргизүү: For connecting to a computer or other USB audio source.
  • Bluetooth антенна туташтыргычы: Кошумча Bluetooth антеннасын туташтыруу үчүн.
  • AC кубаттуулугун киргизүү: Электр кабелин туташтыруу үчүн.

4.3 Алыстан башкаруу

Diagram of the S.M.S.L DL300 remote control with labels for each button function: ON/OFF, return, select up/down, enter/exit menu, enter secondary menu, switch input, mute, FN key, volume increase/decrease.

4.3-сүрөт: Алыстан башкаруунун функциялары.

  • КҮЙГҮЗҮҮ/ӨЧҮРҮҮ: Power on or off the unit.
  • Кайтуу: Мурунку менюга кайтуу.
  • Select Up/Down: Меню параметрлерин чабыттоо.
  • Enter/Exit Menu: Access or exit the main menu.
  • Enter Secondary Menu: Access sub-menus.
  • Которуу киргизүү: Cycle through available input sources.
  • Үнсүз: Mute or unmute audio output.
  • FN ачкычы: Customizable function key.
  • Көлөмдү көбөйтүү/азайтуу: Чыгуу көлөмүн тууралаңыз.

5. Орнотуу

  1. Туташуу кубаты: Connect the provided power cable to the AC power input on the rear panel and then to a suitable power outlet.
  2. Bluetooth антеннасын тиркөө: Screw the Bluetooth antenna onto its connector on the rear panel.
  3. Аудио булагын туташтыруу: 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. Чыгаруу түзмөгүн туташтырыңыз:
    • For headphones, plug your headphones into either the 6.35mm or 4.4mm jack on the front panel.
    • Тышкы үчүн amplifiers or active speakers, connect the DL300's XLR or RCA outputs to your receiving equipment.
  5. Күйгүзүү: Press the power button on the remote control or the multi-function knob on the front panel to turn on the DL300.

6. Иштөө нускамалары

6.1 Негизги операция

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

6.2 Меню Навигациясы

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.

Graph illustrating the frequency response curves of 6 different PCM filters: Sharp Roll-Off, Short Sharp, Slow Roll-Off, Short Slow, Super Slow, and Low Dispersion.

Figure 6.1: PCM Filter Characteristics.

6.4 Bluetooth жупташтыруу

  1. Select Bluetooth as the input source on the DL300. The display will show 'BT' and indicate pairing mode.
  2. Мобилдик түзмөгүңүздө же компьютериңизде Bluetooth'ду иштетиңиз жана жеткиликтүү түзмөктөрдү издеңиз.
  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.
S.M.S.L DL300 displaying Bluetooth connection with LDAC codec, highlighting Bluetooth 5.1, LDAC, and Qualcomm aptX HD support.

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.

Close-up of the S.M.S.L DL300 front panel showing 6.35mm TRS and 4.4mm TRRS headphone jacks with power output specifications for 16Ω and 300Ω loads.

Figure 6.3: Headphone Output Details.

7. Техникалык тейлөө

  • Тазалоо: Агрегаттын сыртын тазалоо үчүн жумшак, кургак чүпүрөктү колдонуңуз. Абразивдүү тазалагычтарды же эриткичтерди колдонуудан алыс болуңуз.
  • Вентиляция: Ensure the unit has adequate ventilation. Do not block the ventilation holes.
  • Курчап турган чөйрө: Keep the unit away from direct sunlight, heat sources, excessive dust, moisture, and strong electromagnetic fields.
  • Өчүрүү: Always power off the unit before disconnecting cables or moving it.

8. Кыйынчылыктарды

КөйгөйМүмкүн себепЧечим
Күч жокPower cable not connected; Power outlet faulty; Unit switched off.Check power cable connection; Try a different outlet; Press power button on unit or remote.
Үн чыгышы жокIncorrect input selected; Volume too low; Output device not connected; Mute function active.Select correct input; Increase volume; Check headphone/speaker connections; Deactivate mute.
Bluetooth байланышы көйгөйлөрүDL300 not in pairing mode; Device not found; Interference.Ensure DL300 is in Bluetooth input mode; Restart Bluetooth on both devices; Move closer to the unit.
Бузулган аудиоVolume too high; Incorrect gain setting for headphones; Faulty cable.Reduce volume; Adjust headphone gain in menu; Try a different audio cable.

9. Техникалык шарттар

ӨзгөчөлүкДеталь
Продукциянын өлчөмдөрү8.74 x 8.15 x 1.54 дюйм (222 x 207 x 39 мм)
Элемент Салмагы3.3 фунт
DAC чипсетиAK4499EX + AK4191
USB процессоруXMOS XU-316 (3rd Generation)
PCM колдоо32бит/768кГц чейин
DSD колдоосуUp to DSD512 (Native), DOP64 (Coaxial, Optical)
MQA колдоосуFull MQA Decoding, MQA-CD
Bluetooth версиясыQCC5125 (Supports LDAC, apt-X HD)
Гарнитуранын чыгышы6.35 мм (бир аягы), 4.4 мм (балансталган)
Аналогдук чыгууларXLR (Балансталган), RCA (Балансталбаган)
Digital InputsUSB, Optical, Coaxial, I²S (HDMI)
THD+NAs low as 0.00006% (-124dB)
Graph showing THD+N ratio for Channel 1 and Channel 2, indicating values around 0.00006% and SINAD values around 124 dB.

Figure 9.1: THD+N Performance Data.

Bar graph illustrating Signal to Noise Ratio (SNR) values for two channels, both exceeding 132 dB.

Figure 9.2: Signal to Noise Ratio Performance Data.

Bar graph illustrating Dynamic Range values for two channels, both exceeding 132 dB.

Figure 9.3: Dynamic Range Performance Data.

10. Кепилдик жана колдоо

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. Продукт видеосу бүттүview

Видео 11.1: Бүттүview of the S.M.S.L DL300 AK4499EX+AK4191 Audio Decoder Headphone Ampкөтөргүч, көрсөтүүчүasing анын дизайны жана өзгөчөлүктөрү.

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