1. Introduction
The SOBATTY AV-298 is a versatile Home Audio Receiver and Amplifier designed to enhance your stereo audio experience. Featuring Bluetooth 5.0 connectivity, USB/SD card playback, FM radio, and microphone inputs, this amplifier delivers clear and powerful sound for your home entertainment system. Its compact design makes it easy to integrate into any AV cabinet.
Product Overview Video
Video: A 360-degree view of the SOBATTY AV-298 amplifier, showcasing its front, side, and rear panels, highlighting its compact size and various ports.
2. What's in the Box
Upon opening your package, please ensure all the following items are included:
- Amplifier x1
- Remote Control x1
- Manual x1
3. Product Features
- Experience amplifying and enjoying stereo audio in a cozy home, Frequency band: 20Hz – 20KHz.
- Home Audio Stereo Subwoofer Amplifier Receivers 100 watts x 3. Speaker Impedance 4–16 ohms.
- Bluetooth, USB, DVD, COAXIAL Input, Stereo RCA Audio Inputs, 2 ¼” Microphone Input, Stereo RCA Output.
- Bluetooth Receiver For Home Stereo System, Home Audio Amplifier lets you wirelessly stream your favorite music service.
- Connect up to 3 speakers, one of them is connected to a subwoofer.
- Home Theater Stereo Audio System Receivers 2.75 Inch tall, Easy to fit into a comfortable home AV cabinet.
- Through high-resolution audio, the signal is transmitted to every component of the speaker, making you feel like music is performing right in front of you and fully enjoying the perfect life brought by music.
- Stereo Receivers Large capacity power transformer, quality sound transmission.
4. Setup Guide
4.1 Front Panel Controls and Inputs
Familiarize yourself with the front panel of your AV-298 amplifier, which provides access to various controls and input options.

Image: Detailed diagram of the amplifier's front panel, indicating the location and function of the USB jack, SD card slot, display window, MP3 function buttons, bass/treble/mic volume adjustments, microphone inputs, power switch, and master volume knob.
4.2 Rear Panel Connections
Before powering on, connect all necessary audio sources and speakers to the rear panel.

Image: Detailed diagram of the amplifier's rear panel, showing the RCA audio input, left and right channel speaker output terminals, 12V DC power input, 110V power cord, and the extendable radio antenna.
- Speaker Connection: Connect your passive speakers to the red and black speaker terminals (L+ / L- for left channel, R+ / R- for right channel). Ensure correct polarity (+ to + and - to -) for optimal sound. The amplifier supports 4-16 ohm speakers.
- Audio Input: Use RCA cables to connect external audio sources (e.g., DVD player, CD player, TV) to the L/R AUDIO INPUT jacks.
- Power Connection: Plug the integrated power cord into a standard 110V AC outlet. For DC 12V input, use the dedicated DC12V INPUT port.
- Antenna: Extend the FM antenna for better radio reception.
5. Operating Instructions
5.1 Power On/Off
Press the POWER switch on the front panel to turn the amplifier on or off.
5.2 Mode Selection
Use the 'MODE' button on the front panel or remote control to switch between input sources: Bluetooth (BLUE), USB, SD/MMC Card, FM Radio, and AUX (RCA input).
5.3 Bluetooth Connection
The AV-298 features Bluetooth 5.0 for wireless audio streaming.

Image: The amplifier shown with various compatible devices (laptop, computer, smartphone, tablet PC) and a Bluetooth icon, illustrating its wireless connectivity capabilities.
- Switch the amplifier to 'BLUE' mode using the 'MODE' button. The display will show "BLUE".
- Enable Bluetooth on your smartphone, tablet, or other device.
- Search for available Bluetooth devices and select "AV-298BT" to pair.
- Once connected, you can stream audio wirelessly from your device to the amplifier.
5.4 USB/SD Card Playback
Insert a USB flash drive or SD/MMC card into the respective slot on the front panel. The amplifier will automatically switch to USB/SD mode and begin playing compatible audio files (e.g., MP3).
- Use the MP3 function buttons (Play/Pause, Previous, Next) to control playback.
- Note: The unit may not support random playback from USB/SD.
5.5 FM Radio Operation
Enjoy your favorite radio stations with the built-in FM tuner.

Image: The amplifier displayed with vibrant sound wave graphics, emphasizing its capability as an FM Radio Stereo Receiver for home theater audio, supporting USB, SD, FM Radio, and Bluetooth playback.
- Switch to FM Radio mode using the 'MODE' button.
- Press 'AUTO' to perform an automatic scan and save available stations.
- Use 'CH+' and 'CH-' buttons to navigate through saved stations.
- For manual tuning, you may need to use the remote control to directly enter station frequencies.
5.6 Microphone Input
The amplifier features two ¼” microphone inputs for karaoke or public address.
- Connect your microphones to the MIC1 or MIC2 inputs.
- Adjust the 'MIC VOL' knob to control the microphone volume.
5.7 Volume and Tone Control
- Volume: Rotate the large 'VOLUME' knob to adjust the master output volume.
- Bass/Treble: Use the 'BASS' and 'TREBLE' knobs to fine-tune the audio's low and high frequencies.
- EQ Settings: The amplifier may have preset equalizer settings accessible via the remote control.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the amplifier. Do not use liquid cleaners or aerosols.
- Ventilation: Ensure adequate ventilation around the unit to prevent overheating. Do not block the ventilation openings.
- Storage: When not in use for extended periods, store the amplifier in a cool, dry place away from direct sunlight and extreme temperatures.
7. Troubleshooting
If you encounter issues with your SOBATTY AV-298 amplifier, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Unit not turning on | Loose power cord connection; faulty power cord. | Ensure the power cord is securely plugged into both the amplifier and the wall outlet. Try a different power cord if available. |
| No sound / Low volume | Incorrect input selection; loose speaker wires; low source volume; speaker impedance mismatch. | Verify the correct input mode is selected. Check all speaker wire connections for proper polarity and tightness. Increase the volume on both the amplifier and the audio source. Ensure speakers are within the 4-16 ohm range. |
| Crackling or Hissing sound | Poor cable connections; interference; faulty audio source/cable. | Check all audio input cables for secure connections. Try different cables or audio sources to isolate the issue. Ensure the amplifier is not placed near devices that cause electromagnetic interference. |
| Distortion at high volume | Overdriving the amplifier or speakers; impedance mismatch. | Reduce the volume level. Ensure your speakers can handle the amplifier's output power. Check speaker impedance. |
| Poor FM radio reception | Antenna not extended; weak signal; interference. | Fully extend the FM antenna. Try repositioning the antenna or the amplifier for better signal. |
| Bluetooth pairing issues | Amplifier not in Bluetooth mode; device not discoverable; too far from amplifier. | Ensure the amplifier is in 'BLUE' mode. Make sure Bluetooth is enabled on your device and it's in pairing mode. Move your device closer to the amplifier. |
| Loud voice cues (e.g., when connecting Bluetooth) | Voice prompt volume is fixed or tied to main volume. | Lower the amplifier's main volume before connecting Bluetooth. There may not be a separate control for voice prompt volume. |
8. Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 8.86 x 13 x 2.75 inches (8.86"D x 13"W x 2.75"H) |
| Item Weight | 2 pounds |
| Model Number | AV-298 |
| Connectivity Technology | Bluetooth |
| Controller Type | Push Button, Remote Control |
| Special Feature | Built-In Bluetooth |
| Compatible Devices | Smartphone, Speaker |
| Connector Type | RCA |
| Audio Output Mode | Stereo |
| Surround Sound Channel Configuration | 2 |
| Speaker Impedance | 4–16 ohms |
| Frequency Band | 20Hz – 20KHz |
9. Warranty and Support
9.1 Warranty Information
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included in your package for specific terms and conditions, including warranty period and coverage details. Keep your purchase receipt as proof of purchase for any warranty claims.
9.2 Customer Support
For technical assistance, troubleshooting beyond this manual, or warranty inquiries, please contact SOBATTY customer support. Contact information can typically be found on the product packaging, the manufacturer's official website, or the retailer's support page where you purchased the product.
When contacting support, please have your product model number (AV-298) and purchase details ready to expedite the process.





