1. Introducció
The SUNBUCK AV-338ST is a versatile 5-channel HIFI digital stereo audio power amplifier designed for various audio applications, including home theater, karaoke, and small parties. It features a peak power output of 2000W, multiple input options including DVD, AUX, USB, SD card, and Bluetooth 5.0, along with FM radio functionality. The amplifier also includes two microphone inputs with reverb and delay adjustment for an enhanced karaoke experience, and a 5-band EQ mixer for fine-tuning audio output.
This manual provides detailed instructions for setting up, operating, and maintaining your AV-338ST amplificador per garantir un rendiment i una longevitat òptims.
2. Guia de configuració
2.1 Unpacking the Ampmés viu
Carefully unpack the contents of the box. Ensure all items are present and in good condition.
- 1 x SUNBUCK AV-338ST Audio Power Ampmés viu
- 1 x Manual d'usuari (aquest document)
- 1 x comandament a distància
- 1 x cable d'alimentació
2.2 Front and Rear Panel Overview
Familiarize yourself with the controls and connections on the front and rear panels of your ampmés viu.
| No. | Funció | Descripció |
|---|---|---|
| 1 | Encès / apagat | Interruptor d'alimentació principal de la unitat. |
| 2 | ECO | Ajusta l'efecte d'eco per als micròfons. |
| 3 | MIC VOL | Ajusta el volum dels micròfons. |
| 4 | Disc USB/SD | Port for USB flash drives and SD cards for media playback. |
| 5 | MÀSTER VOL | Controls the overall master volume output. |
| 6 | BASS | Ajusta el nivell de baixa freqüència (greus). |
| 7 | AGUTS | Ajusta el nivell d'alta freqüència (aguts). |
| 8 | Pantalla LED | Digital display for status and track information. |
| 9 | Entrada de CD | RCA input for CD players. |
| 10 | Sistema d'altaveus | Terminals for connecting speakers (4-16 ohm). |
| 11 | Speaker Channel Output | Outputs for connecting speaker channels. |
| 12 | Entrada MIC | Two 6.35mm (1/4 inch) jack inputs for microphones. |
| 13 | Entrada d'àudio | Entrada d'àudio general. |
| 14 | Entrada de DVD | RCA input for DVD players. |
| 15 | Entrada AUX | RCA auxiliary input for external audio devices. |
| 16 | FM ANT | Connector for FM antenna. |
2.3 Connectar altaveus
The AV-338ST supports a 5-channel output, including a center channel and two surround channels, in addition to the main stereo channels. Ensure your speakers have an impedance between 4 and 16 ohms.
- Connect your main stereo speakers to the 'Speaker System' terminals (R and L).
- Connect your center speaker to the 'C' terminal.
- Connect your surround speakers to the 'SR' (Surround Right) and 'SL' (Surround Left) terminals.
- Assegureu-vos de la polaritat correcta (+ a + i - a -) per a totes les connexions d'altaveus.
2.4 Connexió de fonts d'àudio
El amplifier offers various input options for your audio devices.
- DVD/CD/AUX Inputs: Use RCA cables to connect your DVD player, CD player, or other auxiliary audio devices to the corresponding RCA input jacks on the rear panel.
- Targeta USB/SD: Insert a USB flash drive or SD card (up to 64GB, not included) into the front panel USB or SD/MMC slot for direct media playback.
- Bluetooth: Pair your Bluetooth-enabled device (smartphone, tablet, laptop) with the amplifier. (See section 3.5 for detailed Bluetooth instructions).
- Antena FM: Connect the included FM antenna to the FM ANT terminal on the rear panel for radio reception.
2.5 Connexió del micròfon
El amplifier features two microphone inputs for karaoke or public address.
- Connect your microphones to the MIC1 and MIC2 6.35mm (1/4 inch) jack inputs on the front panel.
3. Instruccions de funcionament
3.1 Encès/Apagat
Press the 'Power ON/OFF' button on the front panel to turn the ampactivar o desactivar el lificador. La pantalla LED s'il·luminarà quan la unitat estigui engegada.
3.2 Selecció d'entrada
Use the 'AUDIO INPUT SELECTOR' knob on the front panel to choose your desired audio source (e.g., DVD, AUX, USB, SD, FM, Bluetooth).
3.3 Control de volum i to
- MÀSTER VOL: Rotate the 'MASTER VOL' knob to adjust the overall output volume.
- BAIX/AGUS: Use the 'BASS' and 'TREBLE' knobs to adjust the low and high frequencies of the audio output, respectively. The amplifier features a 5-band EQ mixer for detailed tone control.
3.4 Ús del micròfon
- MIC VOL: Adjust the 'MIC VOL' knob to control the volume of the connected microphones.
- ECO: Use the 'ECHO' knob to add or remove echo effects to the microphone sound. The amplifier also supports microphone reverb and delay adjustment for a professional karaoke sound.
3.5 Reproducció des de targeta USB/SD
Insert a USB disk or SD card into the respective slot. The ampEl lifier detectarà automàticament i començarà a reproduir àudio files. Use the front panel controls or remote control to navigate tracks and adjust playback.
3.6 Connectivitat Bluetooth
The AV-338ST features Bluetooth 5.0 for wireless audio streaming.
- Switch the input selector to 'Bluetooth' mode. The LED display will indicate Bluetooth pairing mode.
- On your mobile device, search for available Bluetooth devices and select 'AV-338ST' (or similar name).
- Once paired, you can stream audio wirelessly from your device to the ampmés viu.
3.7 Ràdio FM
Switch the input selector to 'FM' mode. The amplifier will automatically scan for available radio stations. Use the CH+/- buttons on the remote control to change stations.
3.8 Funcions de control remot
El comandament a distància inclòs proporciona un accés còmode a diverses ampfuncions de lificació.
| Botó | Funció |
|---|---|
| ON/OFF | Encendre/apagar el ampmés viu. |
| MODE | Cycles through input modes (DVD, AUX, USB, SD, FM, Bluetooth). |
| CH +/- | Changes FM radio stations or navigates tracks. |
| EQ | Selecciona els preajustos de l'equalitzador. |
| Anterior/Següent | Skips to the previous or next track during media playback. |
| Reproduir/Pausa | Reprodueix o posa en pausa la reproducció multimèdia. |
| Volum +/- | Ajusta el volum mestre. |
| 0-9 | Direct song selection (for USB/SD playback). |
| Cicle | Toggles playback repeat modes. |
4. Manteniment
4.1 Neteja
To maintain the appearance and performance of your amplifier, regularly wipe the exterior with a soft, dry cloth. Do not use liquid cleaners or abrasive materials, as they may damage the finish or internal components.
4.2 Components interns
El amplifier contains sensitive electronic components. Do not attempt to open the casing or perform any internal repairs yourself. This could lead to electric shock, damage to the unit, and void your warranty. Key internal components include:
- Power tube
- 4 Tub
- Speaker protect circuit
- Filter Capacitor
- Small capacitor
- Transformador toroidal
- Zener tube
- Presa de micròfon
- Interruptor de commutació
- Fusible
For any service or repair needs, please contact authorized service personnel.
5. Solució De Problemes
Si trobeu algun problema amb el vostre amplifier, please refer to the following common troubleshooting steps before seeking professional assistance.
- Sense energia: Assegureu-vos que el cable d'alimentació estigui connectat correctament a tots dos amplifier and a working power outlet. Check the power switch on the front panel.
- Sense so: Verify that the correct input source is selected. Check all audio cable connections to and from the amplifier. Ensure speakers are properly connected and their volume is not muted or set too low. Adjust the MASTER VOL knob.
- So distorsionat: Check if the input signal is too strong (reduce volume on the source device). Ensure speaker impedance matches the amplifier's specifications (4-16 ohm).
- El micròfon no funciona: Ensure microphones are properly plugged into MIC1/MIC2. Adjust MIC VOL and ECHO knobs.
- Problemes de connexió Bluetooth: Assegureu-vos el amplifier is in Bluetooth mode and your device's Bluetooth is enabled. Try unpairing and re-pairing the device.
- Problemes de reproducció amb USB/SD: Ensure the USB disk or SD card is formatted correctly (FAT32) and contains compatible audio files. Try a different USB/SD card.
6. Especificacions
Detailed technical specifications for the SUNBUCK AV-338ST ampmés viu.
| Característica | Especificació |
|---|---|
| Model | AV-338ST |
| Canal | Canal 5 |
| Voltage | 110V/220V 50 / 60Hz |
| Resposta de freqüència | 20Hz - 20KHz (+/-10dB) |
| Potència nominal | 1200W |
| Potència màxima | 2000W |
| Standard Impedance | 4 a 16 ohms |
| Relació senyal/soroll | 90 dB |
| Distorsió harmònica total | ≤ 0.5% |
| Signal Input Sensitivity | 200mv (± 30mv) |
| Sensibilitat d'entrada del micròfon | 9 mv (± 2mv) |
| Recording Level Output | 1V |
| Auxiliary Level Output | 1V |
| DC12V Support | No |
| Suport als mitjans | USB Disk/Max 64GB SD Card (Not included) |
| Color | Negre, daurat |
| Dimensions (L x A x A) | 25 x 21.5 x 6 cm (9.8 x 8.5 x 2.4 polzades) |
| Categoria | Item | Quantitat |
|---|---|---|
| Entrada | Sistema d'altaveus | x4 |
| Entrada d'àudio | x2 | |
| Entrada AUX | x2 | |
| Sortida LINE | x2 | |
| Targeta SD | x1 | |
| FM ANT | x1 | |
| Disc USB | x1 | |
| Entrada MIC | x2 | |
| Les claus | Encès/Apagat | x1 |
| Volum del micròfon | x1 | |
| Volum mestre | x1 |
7. Garantia i Suport
Your SUNBUCK AV-338ST amplifier comes with the following service commitments:
| Tipus de servei | Descripció |
|---|---|
| Lliurament puntual | Full refund if the product is not received within the guaranteed delivery time. |
| Longer Protection | 15 days more protection after order completion. |
| Returns Extra | Return any product, provided it is in perfect condition. |
| Qualitat garantida | Qualitat garantida o reemborsament complet. |
For further assistance, technical support, or warranty claims, please contact your retailer or the manufacturer's customer service. Please have your model number (AV-338ST) and purchase information ready when contacting support.
