1. Introduzzjoni
The Douk Audio ST-01 Plus is a versatile 2-channel TPA3255 Bluetooth amplifier designed for home audio systems. It features multiple input options including Bluetooth 5.2, RCA, and MM Phono, making it compatible with a wide range of audio devices such as turntables, phones, computers, and TVs. The amplifier delivers a maximum output power of 300W per channel, capable of driving most passive speakers. Unique features include a built-in VU meter, adjustable bass and treble controls, and a 3.5mm AUX output for connecting additional audio equipment.

Stampa 1.1: Quddiem view of the Douk Audio ST-01 Plus amplifier, wirjaasing its compact design and prominent VU meter.
2. X'hemm fil-Kaxxa
- 1x ST-01 PLUS Ampaktar ħaj
- 1x Adapter tal-Enerġija DC 32V/5A
- 1x Bluetooth Antenna

Image 2.1: Contents of the Douk Audio ST-01 Plus package, including the amplifier, power adapter, and Bluetooth antenna.
3. Prodott Aktarview
3.1 Kontrolli ta' Front Panel

Immaġni 3.1: Dettaljata view of the front panel with labels for each control and indicator.
- Miter VU: Juri l-livell tal-ħruġ tal-awdjo.
- Input Indicators (BT, RCA, Phono): Lights up to show the currently selected input.
- Mode/Volume Knob: Press to switch input modes (BT, RCA, Phono). Rotate to adjust volume.
- Pum tal-bass: Jaġġusta l-ħruġ tal-awdjo ta' frekwenza baxxa.
- Pum tat-Triple: Jaġġusta l-ħruġ tal-awdjo ta' frekwenza għolja.
- Riċevitur IR: Għal sinjali ta' kontroll mill-bogħod.
3.2 Konnessjonijiet tal-Panew ta' wara

Immaġni 3.2: Dettaljata view of the rear panel with labels for all input and output ports.
- Port tal-Antenna Bluetooth: Connect the included Bluetooth antenna.
- Input tal-Awdjo (RCA): Connect audio sources via RCA cables.
- Input Phono (MM): Connect turntables with MM cartridges.
- Ħruġ AUX ta' 3.5mm: Qabbad ma 'ieħor amplifier, active speakers, or a subwoofer.
- Speaker Output (Banana Plugs): Qabbad kelliema passivi.
- DC 24V-48V Input: Qabbad l-adapter tal-enerġija.
3.3 Komponenti Interni
The ST-01 Plus utilizes high-quality audio components for superior sound performance:
- TPA3255 AmpĊippa lifier: Delivers up to 300W per channel with low distortion.
- QCC304X Bluetooth Chip: Supports SBC/APTX/APTX-LL/APTX-HD for high-quality, low-latency wireless audio streaming.

Image 3.3: Visual representation of the TPA3255 amplifier chip and QCC304X Bluetooth chip, highlighting key internal components.
4. Setup
4.1 Konnessjoni ta' Kelliema
- Tiżgura l- amplifier huwa mitfi.
- Connect your passive speakers to the Speaker Output terminals on the rear panel using banana plugs or bare wire. Ensure correct polarity (red to red, black to black).
4.2 Konnessjoni ta' Sorsi tal-Awdjo
Agħżel wieħed mill-metodi li ġejjin biex tqabbad is-sors tal-awdjo tiegħek:
- Input RCA: Connect devices like CD players, computers, or TVs using RCA cables to the Audio Input (RCA) ports.
- Input Phono MM: Connect a turntable with an MM cartridge to the Phono Input ports.
- Bluetooth: For wireless connection, ensure the Bluetooth antenna is connected.

Image 4.1: Illustration of various input options including Bluetooth, Phono, RCA, and AUX output, demonstrating the amplifier's compatibility.
4.3 Konnessjoni tal-Enerġija
- Connect the DC 32V/5A power adapter to the DC 24V-48V Input port on the rear panel.
- Ipplaggja l-adapter tal-enerġija f'sokit tal-ħajt adattat.
5. Istruzzjonijiet Operattivi
5.1 Power On/Off
Rotate the Mode/Volume knob clockwise until it clicks to power on the amplifier. Rotate counter-clockwise until it clicks to power off.
5.2 Għażla tal-Input
Press the Mode/Volume knob to cycle through the available input modes: Bluetooth (BT), RCA, and Phono. The corresponding indicator light on the front panel will illuminate.
5.3 Kontroll tal-Volum
Rotate the Mode/Volume knob to adjust the output volume. Turn clockwise to increase volume and counter-clockwise to decrease.
5.4 Kontroll tat-Ton
Use the Bass and Treble knobs to adjust the low and high frequencies of the audio output according to your preference.
5.5 Tqabbil tal-Bluetooth
- Select Bluetooth input mode by pressing the Mode/Volume knob until the BT indicator lights up.
- On your device (phone, tablet, etc.), enable Bluetooth and search for "Douk Audio ST-01 Plus".
- Agħżel il- amplifier to pair. Once connected, the BT indicator will remain solid.
- To clear Bluetooth pairing records, press and hold the Mode/Volume knob for approximately 3 seconds while in Bluetooth mode.
5.6 VU Meter
The integrated VU meter dynamically displays the audio output level. Its sensitivity can be adjusted to better match different input signals, providing a visual aid for real-time audio adjustment.

Image 5.1: Close-up of the illuminated VU meter, showing the needle responding to audio signals.
5.7 Vidjows Uffiċjali tal-Prodott
Watch these official videos for a visual guide on the Douk Audio ST-01 Plus amplifier's features and operation:
Vidjo 5.1: Overview of the Douk Audio ST-01 200W Bluetooth Amplifier, demonstrating its features and connectivity.
Video 5.2: A demonstration of the Douk Audio ST-01 Tube Power Amp with its VU Meter in action.
6. Speċifikazzjonijiet
| Karatteristika | Speċifikazzjoni |
|---|---|
| Id-dimensjonijiet tal-oġġett L x W x H | 4.53 x 3.84 x 2.13 pulzieri |
| Voltage | 30 Volts (DC) |
| Manifattur | Douk Awdjo |
| Provvista Massima Voltage | 48 Volts (DC) |
| Provvista Minima Voltage | 24 Volts (DC) |
| Tip ta 'Immuntar | Immonta fil-wiċċ |
| Brand | Douk Awdjo |
| Numru ta 'Kanali | 2 |
| Qawwa tal-Ħruġ | 600 Watts (Total, max 300W per channel) |
| Package Type Name | kaxxa |
| Speċifikazzjoni Met | FCC |
| Kurrent tal-Provvista | 5 Amps |
| Materjal | Metall |
| Dimensjonijiet tal-Prodott | 4.53 x 3.84 x 2.13 pulzieri |
| Piż tal-oġġett | 2.9 liri |
| ASIN | B09FPTJ6XD |
| Numru tal-mudell tal-oġġett | ST-01 |
| Data L-Ewwel Disponibbli | 8 ta’ Settembru, 2021 |
7 Issolvi l-problemi
- Ebda Ħsejjes:
- Ensure the power adapter is securely connected and the amplifier huwa mixgħul.
- Verify that speakers are correctly connected to the output terminals with proper polarity.
- Check that the correct input source is selected (BT, RCA, Phono).
- Confirm the volume is not set to minimum on the amplifier or your audio source.
- Jekk qed tuża l-Bluetooth, kun żgur li l-apparat huwa mqabbad u konness.
- Kwistjonijiet ta' Konnessjoni Bluetooth:
- Ensure the Bluetooth antenna is securely attached.
- Mexxi l-apparat Bluetooth tiegħek eqreb lejn amplifier biex ittejjeb is-saħħa tas-sinjal.
- Clear previous Bluetooth pairing records on the amplifier (refer to section 5.5) and your device, then attempt to re-pair.
- Ensure no other devices are actively connected to the amplifier permezz tal-Bluetooth.
- Ħoss Mgħawġ:
- Naqqas il-volum fuq iż-żewġ amplifier and your audio source.
- Check speaker connections for loose wires or incorrect polarity.
- Kun żgur li s-sors tal-awdjo mhux qed jibgħat sinjal żejjed.
8. Manutenzjoni
- Żomm il- amplifier in a dry, well-ventilated area away from direct sunlight, heat sources, and moisture.
- Clean the exterior with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Kun żgur li jkun hemm fluss tal-arja xieraq madwar l-unità biex tevita li tissaħħan iżżejjed.
9. Garanzija u Appoġġ
Douk Audio products are designed for reliability and performance. For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase or visit the official Douk Audio websit. Jekk jogħġbok żomm il-prova tax-xiri tiegħek għal talbiet ta' garanzija.





