Nobsound DA7 Tube Power Bluetooth AmpKorisnički priručnik za lifier

1. Uvod

The Nobsound DA7 Tube Power Bluetooth Amplifier is designed to deliver high-fidelity audio with a classic tube sound. This integrated amplifier features a full tube path, multiple input options including Bluetooth and USB, and dual VU meters for real-time audio visualization. It is suitable for driving passive bookshelf speakers and offers a headphone output for personal listening.

2. Šta se nalazi u kutiji

DA7 Tube Amplifier ×1
Kabl za napajanje ×1
Bluetooth Antenna ×1

Nobsound DA7 Amplifier and included accessories: power cord and Bluetooth antenna. — Figure 1: Contents of the Nobsound DA7 package, including the amplifier unit, power cord, and Bluetooth antenna.

3. Proizvod je gotovview

3.1 Kontrole i indikatori na prednjoj ploči

Front view of the Nobsound DA7 Tube Power Bluetooth Amplifier, showing tubes, VU meters, and control knobs. — Figure 2: Front panel of the DA7 amplifier, featuring dual VU meters, tube display, and various control knobs.

Dugme za napajanje: Uključuje/isključuje uređaj.
VU mjerači: Two responsive analog meters visualize output swing in real time.
USB kontrola: Buttons for previous song, play/pause, and next song when using USB input.
Birač ulaza: Knob to switch between input sources (CD, AUX, BT, OPT, COAX, USB).
Gumb za jačinu zvuka: Adjusts the master volume. Also integrates power on/off (long press) and mode-switching (short press).
Priključak za slušalice (3.5 mm): Za povezivanje slušalica.
Dugmići za bas/visoke tonove: Adjusts bass and treble gain. Detented at the center for original sound color.

3.2 Priključci stražnje ploče

Pozadi view of the Nobsound DA7 Tube Power Bluetooth Amplifier, showing various input and output ports. — Figure 3: Rear panel of the DA7 amplifier, displaying speaker terminals, RCA inputs, optical, coaxial, USB, and power input.

CD ulaz (RCA): For connecting CD players or other analog sources.
AUX ulaz (RCA): For connecting auxiliary analog sources.
PRE Out (3.5mm): For connecting an active subwoofer or active speakers.
USB Input (USB-A): Supports U-disk playback (up to 128G, FAT32/ExFAT, MP3/WMA/APE/FLAC/AAC/WAV).
Bluetooth priključak za antenu: Za pričvršćivanje priložene Bluetooth antene.
Optički ulaz (OPT): Digitalni audio ulaz.
Koaksijalni ulaz (COA): Digitalni audio ulaz.
Izlazi za zvučnike (L/R): Gold-plated copper terminals for connecting 4/8Ω passive speakers (supports spade connectors and bare wires).
AC IN (110V): Priključak za napajanje za priloženi kabel za napajanje.

Note: The headphone output and passive speaker outputs cannot operate simultaneously. If both are connected, headphones will take priority.

3.3 Tube Information

Close-up view of the vacuum tubes on the Nobsound DA7 amplifier. — Figure 4: The 6P1 power tubes and 6N1 driver tubes provide a warm, natural sound.

The DA7 comes equipped with 4×6P1 power tubes and 3×6N1 driver tubes. These tubes are responsible for the amplifier's warm, natural timbre and rich dynamics. The tubes are designed for longevity, but can be replaced if needed. Protective covers are provided to safeguard the tubes and prevent accidental burns.

4. Upute za postavljanje

4.1 Povezivanje zvučnika

Osigurajte ampLifier je isključen.
Povežite svoje pasivne zvučnike na Speaker Outputs (L/R) terminals on the rear panel using appropriate speaker wire or spade connectors. Ensure correct polarity (+ to + and - to -).

4.2 Povezivanje audio izvora

Bluetooth: Priključite Bluetooth antenu na njen predviđeni priključak na zadnjoj ploči.
USB: Umetnite USB fleš disk u USB Input (USB-A) luka.
RCA: Connect your audio source (e.g., CD player, PC, TV) to the CD Input (RCA) or AUX Input (RCA) koristeći RCA kablove.
Optički/koaksijalni: Connect your digital audio source to the Optical Input (OPT) or Coaxial Input (COA) using the respective cables.

4.3 Connecting a Subwoofer/Active Speakers

Connect an active subwoofer or active speakers to the PRE Out (3.5mm) port on the rear panel using a 3.5mm to RCA cable.

4.4 Priključak za napajanje

Spojite priloženi kabel za napajanje na AC IN (110V) port on the rear panel and then to a suitable power outlet.

Video 1: Nobsound DA7 Tube Power Bluetooth Amplifier. This video demonstrates the physical features and connectivity options of the DA7 amplifier.

5. Uputstvo za upotrebu

5.1 Uključivanje/isključivanje

Dugo pritisnite Tipka za jačinu zvuka for approximately 3 seconds to power the amplifier on or off. The tubes will warm up for about 15 seconds after powering on.

5.2 Odabir ulaza

Kratko pritisnite Tipka za jačinu zvuka to cycle through available input sources (CD, AUX, BT, OPT, COAX, USB). The corresponding indicator light on the front panel will illuminate.

5.3 Kontrola jačine zvuka

Rotirajte Tipka za jačinu zvuka u smjeru kazaljke na satu za povećanje jačine zvuka i suprotno od smjera kazaljke na satu za smanjenje jačine zvuka.

5.4 Kontrola tona

Podesite Bass Knob i Treble Knob to fine-tune the low and high frequencies according to your preference. The center detent position provides a flat, original sound.

5.5 Reprodukcija s USB-a

Kada USB input is selected, use the USB kontrola buttons to navigate tracks (previous/next) and play/pause playback from a connected USB flash drive.

5.6 Bluetooth uparivanje

Odaberite BT input. The Bluetooth indicator will blink, indicating pairing mode.

On your device (phone, tablet, PC), search for

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