Tabung Vakum Douk Audio P2 Mini Bluetooth 5.0 Preamp Manual pamaké

1. Bubuka

This manual provides detailed instructions for the operation and maintenance of your Douk Audio P2 Mini Bluetooth 5.0 Vacuum Tube Preamp. Please read this manual thoroughly before using the device to ensure proper functionality and to maximize your audio experience. This device combines a vacuum tube preamplifier, a HiFi USB player, and a stereo audio headphone amplifier, offering versatile connectivity options including Bluetooth 5.0, RCA, USB, and TF card inputs.

2. Émbaran Kasalametan

Sasayogian tanaga: Anggo ngan ukur adaptor daya anu disayogikeun. Nganggo catu daya anu teu cocog tiasa ngaruksak alat sareng ngabatalkeun garansi.
Ventilasi: Pastikeun ventilasi nyukupan di sabudeureun unit. Ulah meungpeuk bukaan ventilasi.
Uap: Jauhkeun alat ieu tina cai, kalembaban, sareng lingkungan anu kalembabanna luhur.
Panas: Hindarkeun nempatkeun unit caket sumber panas atanapi dina sinar panonpoé langsung.
Handling Tubes: Vacuum tubes can become hot during operation. Exercise caution when handling or replacing them.
beberesih: Cabut daya sateuacan dibersihkeun. Anggo lawon anu lemes sareng garing. Entong nganggo pembersih cair atanapi aerosol.
Palayanan: Ulah nyobian ngalereskeun unit ieu nyalira. Serahkan sadaya perawatan ka tanaga anu mumpuni.

3. Eusi Paket

Pastikeun yén sadaya item aya dina bungkusan:

1x Douk Audio P2 Preamp Unit
1x Power Supply Adapter (DC 12V)
1x Antena Bluetooth
2x 6K4 Vacuum Tubes
1x Kadali Jauh
1 x Manual Instruksi

Douk Audio P2 Preamp package contents including the unit, power supply, antenna, tubes, remote, and manual. — Image 3.1: Contents of the Douk Audio P2 package. This image displays the main unit, power adapter, Bluetooth antenna, two 6K4 vacuum tubes, a remote control, and the instruction manual.

4. Produk Langkungview

The Douk Audio P2 is a compact and versatile audio device designed to enhance your listening experience. It features multiple input options and a vacuum tube stage for a warm, rich sound.

4.1 Kontrol Panel hareup jeung sambungan

Hareupeun view of the Douk Audio P2 Preamp showing controls and inputs. — Image 4.1: Front panel of the Douk Audio P2. Visible elements include the USB port, TF card slot, IR receiver, 3.5mm headphone output, and rotary knobs for Bass, Mid, and Treble tone control.

Input Kartu TF: Slot for TransFlash (MicroSD) cards for media playback.
Input USB: USB-A port for connecting USB flash drives for media playback.
Panarima IR: Panarima Infrabeureum pikeun kadali jauh.
Kaluaran headphone: Jack 3.5mm pikeun nyambungkeun headphone.
Tombol Bass: Nyaluyukeun tingkat audio frékuénsi handap.
Tombol tengah: Adjusts mid-range frequency audio levels.
Treble kenop: Nyaluyukeun tingkat audio frékuénsi luhur.
Tombol Pilihan Input: Buttons for selecting input sources (RCA, BT, USB, TF).
Tombol Daya/Pilih: Powers the unit on/off and cycles through inputs.

4.2 Sambungan Panel Rear

Tukangeun view of the Douk Audio P2 Preamp showing input and output connections. — Image 4.2: Rear panel of the Douk Audio P2. This view shows the RCA input (left and right), RCA output (left and right), DC 12V power input, and the Bluetooth antenna connector.

Konektor Antena Bluetooth: Pikeun masang anteneu Bluetooth anu kalebet.
Input RCA (Kiri/Katuhu): Stereo analog audio input for connecting external audio sources.
Kaluaran RCA (L/R): Stereo analog audio output for connecting to an amplifier atawa speaker aktif.
Input Daya DC 12V: Pikeun nyambungkeun adaptor kakuatan.

5. Setélan

Turutan léngkah ieu pikeun setelan awal:

Pasang Tabung Vakum: Carefully insert the two 6K4 vacuum tubes into their sockets on the top of the unit. Ensure they are seated firmly.
Pasang Anteneu Bluetooth: Screw the provided Bluetooth antenna onto the connector on the rear panel.
Sambungkeun Kaluaran Audio: Connect the RCA output jacks (L/R) on the rear panel to your ampspeaker aktif atawa speaker aktif nu make kabel RCA.
Connect Audio Input (Optional): If using an external analog source (e.g., CD player), connect its RCA output to the RCA input jacks (L/R) on the rear panel.
Sambungkeun Kakuatan: Connect the DC 12V power adapter to the power input on the rear panel, then plug the adapter into a wall outlet.
Daya Hurung: Press the Power/Select button on the front panel or the power button on the remote control to turn on the unit.

Diagram showing connections for the Douk Audio P2 Preamp. — Image 5.1: Connection diagram for the Douk Audio P2. This diagram illustrates how to connect the power supply, Bluetooth antenna, RCA input from a source device, and RCA output to an amplifier atawa speaker aktif.

6. Parentah Operasi

6.1 Pamilihan Input

Use the input selection buttons on the front panel or the remote control to switch between available audio sources:

RCA: For external analog audio sources connected via RCA cables.
BT (Bluetooth): Pikeun streaming audio nirkabel tina alat Bluetooth-diaktipkeun.
USB: For audio playback from a USB flash drive.
TF: For audio playback from a TF (MicroSD) card.

6.2 Operasi Bluetooth

Select the "BT" input using the front panel button or remote. The Bluetooth indicator LED will flash.
Dina alat sélulér anjeun atanapi komputer, aktipkeun Bluetooth sareng milarian alat anu sayogi.
Select "Douk Audio P2" from the list to pair. Once paired, the Bluetooth indicator LED will remain solid.
You can now stream audio wirelessly to the P2.

Close-up of the Bluetooth 5.0 chip. — Image 6.1: Detail of the Bluetooth 5.0 chip, highlighting the wireless connectivity feature of the device.

6.3 USB / TF Card Playback

Selapkeun flash drive USB kana port USB atanapi kartu TF kana slot kartu TF.
Select the "USB" or "TF" input using the front panel button or remote.
The unit will automatically begin playing supported audio files (MP3, APE, FLAC, WAV, WMA).
Anggo remot kontrol pikeun fungsi puter deui (puter/pareum, lagu salajengna/saméméhna).

Close-up of the USB and TF card inputs on the front panel. — Gambar 6.2: Deukeut view of the USB and TF card input slots on the front panel, indicating their location for media playback.

Douk Audio P2 functioning as a digital player with USB and TF card inputs. — Image 6.3: The Douk Audio P2 shown in a home entertainment setup, illustrating its use as a digital player with USB and TF card inputs for various audio formats like MP3, APE, FLAC, WAV, and WMA.

6.4 Headphone AmpFungsi Lifier

Connect your headphones to the 3.5mm headphone jack on the front panel. The P2 will amplify the selected audio source for private listening. The RCA output remains active, allowing simultaneous output to speakers and headphones.

Douk Audio P2 used as a headphone amppangagung. — Image 6.4: A user enjoying music through headphones connected to the Douk Audio P2, demonstrating its function as a headphone amppangagung.

6.5 PraampFungsi Lifier

The P2 acts as a preamplifier, processing the audio signal through its vacuum tube stage before sending it to your main amplifier or active speakers via the RCA output. This tube stage is designed to add warmth and richness to the audio.

Douk Audio P2 used as a tube preamp in an audio setup. — Image 6.5: The Douk Audio P2 integrated into an audio system, connected between an audio source and speakers, illustrating its role as a tube preamppangagung.

6.6 Kontrol Nada

Adjust the Bass, Mid, and Treble rotary knobs on the front panel to fine-tune the audio output to your preference. These controls allow for independent adjustment of different frequency ranges.

Close-up of the Bass, Mid, and Treble tone control knobs. — Gambar 6.6: Deukeut view of the Bass, Mid, and Treble control knobs on the front panel, indicating their function for independent tone adjustment.

6.7 Jauh Jauh

The included remote control provides convenient access to power, input selection, volume adjustment, and media playback controls.

Image of the remote control for the Douk Audio P2. — Image 6.7: The remote control for the Douk Audio P2, showing buttons for power, input selection, volume, and media playback.

7. Pangropéa

7.1 beberesih

To clean the unit, first disconnect it from the power outlet. Use a soft, dry, lint-free cloth to wipe the exterior surfaces. Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the finish or internal components.

7.2 Tube Replacement

The 6K4 vacuum tubes are designed to be user-replaceable. If you wish to experiment with different compatible tubes (e.g., 6J1, 6J4, GE5654, 6AK5, 6*1n) or if a tube needs replacement:

Ensure the unit is powered off and unplugged from the wall outlet. Allow the tubes to cool completely before handling.
Gently grasp the top of the tube and pull it straight up from its socket. Avoid twisting or bending the pins.
Align the pins of the new tube with the holes in the socket. Carefully push the new tube straight down until it is firmly seated.
Reconnect power and test the unit.

Close-up of a 6K4 vacuum tube inserted into the preamp. — Image 7.1: A close-up of one of the 6K4 vacuum tubes glowing when inserted into the Douk Audio P2, illustrating the tube component.

8. Cara ngungkulan

Masalah	Mungkin Cukang lantaranana	Solusi
Taya kakuatan	Adaptor daya teu nyambung; stop kontak teu aktip.	Ensure power adapter is securely connected to the unit and a working power outlet.
Taya kaluaran sora	Incorrect input selected; cables loose; amplifier/speakers off; volume too low.	Verify correct input source. Check all audio cable connections. Ensure connected amplifier/speakers are powered on and volume is adequate.
Bluetooth teu dipasangkeun	Unit teu dina modeu pasangan; alatna jauh teuing; gangguan.	Ensure "BT" input is selected and LED is flashing. Move device closer to the P2. Restart Bluetooth on your device.
Kartu USB/TF teu tiasa diputer	Incorrect input selected; unsupported file format; corrupted media.	Select "USB" or "TF" input. Ensure files are supported (MP3, APE, FLAC, WAV, WMA). Try a different USB drive/TF card. Note: USB drives larger than 32GB may not be fully supported.
Static or humming noise	Ground loop; faulty cables; tube issue.	Check cable connections. Try a different power outlet. Allow tubes to warm up. If persistent, consider replacing tubes.

9. Spésifikasi

merek: Douk Audio
model: P2
Téknologi konektipitas: Bluetooth 5.0, RCA, USB, TF Card
Alat anu cocog: Personal Computer, Television, Speaker, Mobile Phones, CD/MP3 Players
Tipe Panyambung: 3.5mm Jack (Headphone Out), RCA (Input/Output)
Encoding Audio: Stereo
Mode Kaluaran Audio: Stereo
Jumlah Saluran: 2
tabung vakum: 2x 6K4 (replaceable with 6J1, 6J4, GE5654, 6AK5, 6*1n)
Input kakuatan: DC 12V
Ukuran (L x W x H): Approximately 128mm x 115mm x 33mm (5.04 x 4.53 x 1.30 inches)
Beurat barang: Approximately 420g (0.93 lbs)
Supported USB/TF Card Capacity: Up to 32GB (for optimal performance)
Supported Audio Formats (USB/TF): MP3, APE, FLAC, WAV, WMA

Dimensions of the Douk Audio P2 Preamp. — Image 9.1: Diagram showing the dimensions of the Douk Audio P2 unit: 128mm (length), 115mm (width), and 33mm (height).

10. Garansi jeung Rojongan

Douk Audio products are designed for reliability and performance. For warranty information and technical support, please refer to the official Douk Audio websitus atanapi hubungi pangecér anjeun. Simpen resi pameseran anjeun salaku bukti pameseran pikeun klaim garansi.

Resmi Websitus: www.dokaudio.com

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