Sissejuhatus
The Nobsound Douk Audio X1 is a versatile vacuum tube amplifier designed to enhance your audio experience. It features Bluetooth 5.0 connectivity, multiple input options including MM Phono, and a powerful TDA7498E amplifier IC for driving a wide range of passive speakers. The GE5752W vacuum tubes provide a warm and natural sound signature. This manual provides detailed instructions for setting up, operating, and maintaining your ampelujõulisem.
Pakendi sisu
- Douk Audio X1 Amptõsteüksus
- GE5752W Vacuum Tubes (pre-installed or to be installed)
- 32V / 5A toiteadapter
- Bluetoothi antenn
- Kasutusjuhend (see dokument)
Palun kontrollige karbist lahti võttes kogu sisu. Kui mõni ese on puudu või kahjustatud, võtke ühendust klienditoega.
Toode läbiview
Esipaneeli juhtnupud

Pilt: Esiosa view of the Douk Audio X1 amplifier, highlighting the Power Switch, Input Switch (BT, Phono, RCA), Bass Boost Switch, Tone Switch (Off, On), Tube LED Switch (Blue, Off, Orange), Bass Knob, Main Volume Knob, and Treble Knob.
- Toitelüliti: Pöörab ampeluiga sisse või välja.
- Sisendlüliti: Selects the audio input source (Bluetooth, MM Phono, RCA).
- Bassi võimenduse lüliti: Engages or disengages bass enhancement.
- Tooni lüliti: Activates or deactivates the Bass and Treble tone controls.
- Tube LED Switch: Controls the illumination color of the vacuum tubes (Blue, Off, Orange).
- Bassi nupp: Adjusts the low-frequency output when Tone is 'On'.
- Peamine helitugevuse nupp: Reguleerib üldist väljundi helitugevust.
- Kõrgete nuppude nupp: Adjusts the high-frequency output when Tone is 'On'.
Tagapaneeli ühendused

Pilt: Tagumine view of the Douk Audio X1 amplifier, showing the MM Phono input with ground terminal, RCA Audio In, Bluetooth antenna port, Subwoofer Output, Speaker Outputs (Left and Right), and DC Power Input.
- MM PHONO Input: Connects to a turntable with an MM cartridge. Includes a GND (ground) terminal.
- RCA/AUDIO IN: Connects to external audio sources via RCA cables (e.g., CD player, DAC, TV).
- BT (Bluetooth) Antenna Port: Connects the included Bluetooth antenna for wireless audio reception.
- SUB OUT: Connects to an active subwoofer for a 2.1 channel audio setup.
- KÕLARI VÄLJUND: Connects to passive speakers (Left and Right channels).
- DC IN (19V-35V): Connects the provided power adapter.
Seadistamine
1. Vacuum Tube Installation (if not pre-installed)
Carefully insert the GE5752W vacuum tubes into their respective sockets on the amplifier. Ensure they are seated firmly but do not force them. The tubes are fragile, handle with care.
2. Kõlarite ühendamine
Ühendage oma passiivsed kõlarid KÕLARI VÄLJUND terminals on the rear panel. Ensure correct polarity (+ to + and - to -) for both left and right channels. For optimal sound, use high-quality speaker cables.
Oluline ohutusmärkus: When connecting speaker cables without banana plugs, ensure that the bare wire ends do not touch the amplifier case or each other to prevent short circuits and potential damage to the ampelujõulisem.
3. Heliallikate ühendamine
- MM Phono sisend: Connect your turntable's RCA output to the MM PHONO input. Connect the turntable's ground wire to the GND terminal amplifier to reduce hum.
- RCA sisend: Connect other audio devices (e.g., CD player, DAC, TV) to the RCA/AUDIO IN ports using RCA cables.
- Bluetoothi sisend: Screw the provided Bluetooth antenna onto the BT antenni port.
4. Connecting an Active Subwoofer (Optional)
If you wish to use an active subwoofer, connect its input to the ALUSTADA port amplifieri tagapaneel.
5. Toiteühendus
Connect the provided 32V / 5A power adapter to the DC IN port amplifier, then plug the adapter into a suitable wall outlet.

Pilt: The Douk Audio X1 amplifier set up with a turntable and bookshelf speakers, demonstrating a typical MM Phono input connection.
Kasutusjuhised
1. Toide sisse/välja
Vajutage nuppu Toitelüliti esipaneelil, et seda sisse lülitada amplifier on. The vacuum tubes will light up, and the Bluetooth indicator will flash if Bluetooth is selected. Press again to turn off.
2. Sisendi valik
Kasutage Sisendlüliti to select your desired audio source: BT for Bluetooth, FONO for MM turntable, or RCA for other wired devices.
3. Helitugevuse juhtimine
Pöörake Peamine helitugevuse nupp to adjust the overall sound level. Start with a low volume and gradually increase it to a comfortable listening level.
4. Tooni juhtimine
The amplifier features Bass and Treble controls. Flip the Tooni lüliti to 'On' to activate them. Then, use the Bassinupp ja Treble nupp to fine-tune the low and high frequencies according to your preference. Set the Tone Switch to 'Off' for a flat frequency response.
5. Bass Boost Function
Kaasake Bassi võimenduse lüliti to enhance the low-frequency output for a more impactful bass sound.
6. Bluetoothi sidumine
- Valige BT input using the Input Switch. The Bluetooth indicator will flash.
- On your smartphone, computer, or other Bluetooth device, search for available Bluetooth devices.
- Select "Douk Audio X1" (or similar name) from the list to pair.
- Once paired, the Bluetooth indicator will remain solid, and you can play audio wirelessly.
Märkus. When connecting via Bluetooth from a PC, ensure that the audio output method is correctly configured on your computer's sound settings.
7. Tube LED Control
Kasutage Tube LED Switch to change the illumination color of the vacuum tubes to Blue, Orange, or turn the LED off.

Pilt: The Douk Audio X1 amplifier receiving audio wirelessly from a smartphone via Bluetooth, with speakers connected.
Tehnilised andmed
| Funktsioon | Spetsifikatsioon |
|---|---|
| Mudel | X1 |
| Vaakumtoru mudel | GE5752W |
| Amptõstja IC | TDA7498E |
| Op-Amp | NE5532 |
| Maksimaalne väljundvõimsus | 160W + 160W (4Ω) |
| Bluetoothi versioon | 5.0 |
| Helisisendid | Bluetooth, Stereo RCA, MM Phono |
| Heliväljundid | 2.0 Channel Speaker Output, Active Subwoofer Output |
| Toiteallikas | DC 32V / 5A (included) |
| Mõõdud (umbes) | 31.8 x 28 x 8 cm |
| Kaal (umbes) | 1.46 kg |
| Muud funktsioonid | Tone Control (Bass/Treble), Bass Boost, Tube LED Illumination, Short Circuit Protection |
Veaotsing
- Heli puudub:
- Tagada amptõsteseade on sisse lülitatud ja helitugevus keeratud.
- Verify that the correct input source is selected (BT, PHONO, RCA).
- Check all cable connections (power, speakers, audio sources) for secure fit and correct polarity.
- If using Bluetooth, ensure the device is paired and the PC/phone output is set to the ampelujõulisem.
- Moonutatud heli:
- Vähendage helitugevust mõlemast ampelutõrjuja ja allikseade.
- Check speaker impedance compatibility.
- Ensure vacuum tubes are properly seated.
- Humming/Noise:
- If using MM Phono, ensure the turntable's ground wire is connected to the amplifier's GND terminal.
- Kontrollige häireid muudest elektroonikaseadmetest.
- Veenduge, et kõik kaablid on korralikult varjestatud ja ühendatud.
- Bluetoothi ühenduse katkemine/sidumisprobleem:
- Veenduge, et Bluetooth-antenn oleks kindlalt kinnitatud.
- Move the source device closer to the ampelujõulisem.
- Forget the device on your source's Bluetooth settings and try pairing again.
- Taaskäivitage mõlemad ampelutõrjuja ja allikseade.
Hooldus
- Puhastamine: Kasutage puhastamiseks pehmet kuiva lappi ampseadme välispind. Ärge kasutage vedelaid puhastusvahendeid ega lahusteid.
- Vaakumtorud: The GE5752W vacuum tubes have a finite lifespan. If sound quality degrades or tubes fail to light up, they may need replacement. Contact customer support for compatible replacement tubes.
- Ventilatsioon: Tagada amplifier has adequate ventilation to prevent overheating. Do not block ventilation holes.
- Hoiustamine: When not in use for extended periods, disconnect the power adapter and store the ampHoida jahedas ja kuivas kohas.
Ohutusteave
- Ärge paljastage amplifier to water, moisture, or extreme temperatures.
- Ärge avage ampelujõud casing. There are no user-serviceable parts inside, and doing so voids the warranty and poses a risk of electric shock.
- Use only the provided power adapter or a compatible replacement specified by the manufacturer.
- Hoidke amplifier away from children and pets.
- Lülitage seade äikesetormide ajal või kui seda pikka aega ei kasutata.
Garantii ja tugi
Nobsound products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the warranty card included with your product or visit the official Nobsound website. Please have your model number (X1) and purchase details ready when contacting support.





